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Author SHA1 Message Date
Thomas Boerger
4d38a477e9 More additions to be in sync with other plugins (#21) 
* Use specific plugin versions, pull latest versions and enable a microbadger webhook

* Use the new plugins/base:multiarch image

* Write readme like it is done for other plugins

* Downcase all wording like on other plugins, move variables to correct file

* Added dockerignore file

* Added missing schema version label

* Only execute webhook on master branch

* Added issue and pull request templates

* Added blank line to gitignore
 2017-09-02 17:34:15 +08:00
Joachim Hill-Grannec
2882e258d2 Merge pull request #20 from drone-plugins/fix-typo 
Fixed typo within docker image name
 2017-09-01 13:46:16 -04:00
Thomas Boerger
a0cdb0da76
Fixed typo within docker image name 2017-09-01 19:43:37 +02:00
Joachim Hill-Grannec
cc443ff71c Merge pull request #19 from josmo/fix-arm64 
still needs ca-certificates
 2017-09-01 11:52:28 -04:00
Joachim Hill-Grannec
a7aa8f4a31 still needs ca-certificates 2017-09-01 11:43:18 -04:00
Thomas Boerger
0a119f8e5b Merge pull request #18 from josmo/upgrade-0.5 
Upgrade 0.5
 2017-09-01 17:34:36 +02:00
Joachim Hill-Grannec
b05258083d removed mailcap and mime.types from Dockeffile.arm64 2017-09-01 11:31:37 -04:00
Joachim Hill-Grannec
426c52cced Remove Readme ref to .drone.sh 
Fix stupid rancher publish ref that sneaked in
Added windows container preperation
 2017-09-01 10:57:21 -04:00
Joachim Hill-Grannec
cfb46f2f1e gofmt 2017-09-01 10:49:41 -04:00
Joachim Hill-Grannec
dbc5015833 fix typo 2017-09-01 10:47:41 -04:00
Joachim Hill-Grannec
17fe62356c Updates per comments 
move .drone.sh to .drone.yml
Fix Dockerfiles to match S3-cache
Add badges to readme
Couple minor updates to fix variable name and extra space
 2017-09-01 10:26:39 -04:00
Joachim Hill-Grannec
a21b227426 remove coverage link 2017-08-31 16:22:08 -04:00
Joachim Hill-Grannec
9790fbe79a First go to convert drone-webhook to 0.5 format 
Added arm and arm64 docker images
govendor deps
Updated docs
 2017-08-31 16:20:33 -04:00
120 changed files with 6144 additions and 18361 deletions
Show Stats Expand all files Collapse all files

2
.dockeringore Normal file
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@ -0,0 +1,2 @@
*
!release/

126
.drone.yml
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@ -1,29 +1,109 @@
workspace:
base: /go
path: src/github.com/drone-plugins/drone-webhook
pipeline:
test:
image: golang:1.6
environment:
- CGO_ENABLED=0
- GOPATH=/drone
image: golang:1.9
pull: true
commands:
- make vet
- make build
- make test
docker:
storage_driver: overlay
repo: plugins/drone-webhook
tag: [ "latest" ]
- go vet
- go test -cover -coverprofile=coverage.out
build_linux_amd64:
image: golang:1.9
pull: true
group: build
environment:
- GOOS=linux
- GOARCH=amd64
- CGO_ENABLED=0
commands:
- go build -v -ldflags "-X main.build=${DRONE_BUILD_NUMBER}" -a -o release/linux/amd64/drone-webhook
build_linux_arm64:
image: golang:1.9
pull: true
group: build
environment:
- GOOS=linux
- GOARCH=arm64
- CGO_ENABLED=0
commands:
- go build -v -ldflags "-X main.build=${DRONE_BUILD_NUMBER}" -a -o release/linux/arm64/drone-webhook
build_linux_arm:
image: golang:1.9
pull: true
group: build
environment:
- GOOS=linux
- GOARCH=arm
- CGO_ENABLED=0
- GOARM=7
commands:
- go build -v -ldflags "-X main.build=${DRONE_BUILD_NUMBER}" -a -o release/linux/arm/drone-webhook
# build_windows_amd64:
# image: golang:1.9-nanoserver
# pull: true
# group: build
# environment:
# - GOOS=windows
# - GOARCH=amd64
# - CGO_ENABLED=0
# commands:
# - go build -v -ldflags "-X main.build=${DRONE_BUILD_NUMBER}" -a -o release/windows/amd64/drone-webhook
publish_linux_amd64:
image: plugins/docker:17.05
pull: true
repo: plugins/webhook
tags: [ latest, 1.0.0, 1.0, 1 ]
secrets: [ docker_username, docker_password ]
dockerfile: Dockerfile
when:
branch: release/0.4
branch: master
event: push
plugin:
name: Webhook
desc: Send build status notifications via Webhook
type: notify
image: plugins/drone-webhook
labels:
- notify
- webhook
- rest
- json
- hook
publish_linux_arm64:
image: plugins/docker:17.05
pull: true
repo: plugins/webhook
tags: [ linux-arm64 ]
secrets: [ docker_username, docker_password ]
dockerfile: Dockerfile.arm64
when:
branch: master
event: push
publish_linux_arm:
image: plugins/docker:17.05
pull: true
repo: plugins/webhook
tags: [ linux-arm ]
secrets: [ docker_username, docker_password ]
dockerfile: Dockerfile.arm
when:
branch: master
event: push
# publish_windows_amd64:
# image: plugins/docker:17.05
# pull: true
# repo: plugins/webhook
# tags: [ windows-amd64 ]
# secrets: [ docker_username, docker_password ]
# dockerfile: Dockerfile.windows
# when:
# branch: master
# event: push
microbadger:
image: plugins/webhook:1
pull: true
secrets: [ webhook_url ]
when:
branch: master
event: push
status: [ success ]

1
.drone.yml.sig
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@ -1 +0,0 @@
eyJhbGciOiJIUzI1NiJ9.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.UtZ26l9LNl8trj1e6kx7a-h0TgtBJbTkuE__AblgAiQ

9
.github/issue_template.md vendored Normal file
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@ -0,0 +1,9 @@
<!-- PLEASE READ BEFORE DELETING
Bugs or Issues? Due to the high number of false positive issues we receive,
please do not create a GitHub issue until you have discussed and verified
with community support at:
https://gitter.im/drone/drone
-->

7
.github/pull_request_template.md vendored Normal file
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@ -0,0 +1,7 @@
<!-- PLEASE READ BEFORE DELETING
Please discuss changes before creating pull requests.
https://gitter.im/drone/drone
-->

1
.gitignore vendored
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@ -23,5 +23,6 @@ _testmain.go
*.test
*.prof
release/
coverage.out
drone-webhook

58
DOCS.md
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@ -5,7 +5,9 @@ You can override the default configuration with the following parameters:
* `urls` - JSON payloads are sent to each URL
* `method` - HTTP request method. Defaults to `POST`
* `header` - HTTP request header map
* `headers` - HTTP request header map
* `username` - The username as a string for HTTP basic auth
* `password` - The password as a string for HTTP basic auth
* `skip_verify` - Skip verification of TLS certificates, defaults to `false`
## Example
@ -18,8 +20,8 @@ notify:
urls:
- https://your.webhook/...
- https://your.other.webhook/...
header:
Authorization: pa55word
headers:
- "Authorization=pa55word"
```
### Custom Body
@ -32,18 +34,7 @@ For this usage the following additional parameters should be used:
Example configuration that generate a custom Yaml payload:
```yaml
notify:
webhook:
urls:
- https://your.webhook/...
- https://your.other.webhook/...
content_type: application/yaml
template: >
repo: {{repo.full_name}}
build: {{build.number}}
commit: {{build.commit}}
```
TBD
### Basic Authentication
@ -54,7 +45,7 @@ In some cases your webhook may need to authenticate with another service. You
can set the basic `Authentication` header with a username and password. For
these use cases we expose the following additional parameters:
* `auth` - Sets the request's `Authorization` header to use HTTP Basic Authentication with the provided username and password below
* Sets the request's `Authorization` header to use HTTP Basic Authentication with the provided username and password below
* `username` - The username as a string
* `password` - The password as a string
@ -64,19 +55,14 @@ Example configuration to include HTTP Basic Authentication:
notify:
webhook:
method: POST
auth:
username: $$USERNAME
password: $$PASSWORD
username: myusername
password: mypassword
urls:
- https://tower.example.com/...
```
### Debugging Webhooks
> If you have private variables that are encrypted and hidden in `.drone.sec`,
> remember that the `debug` flag may print out those sensitive values. Please
> use `debug: true` wisely.
In some cases complicated webhooks may need debugging to ensure `urls`,
`template`, `auth` and more a properly configured. For these use cases we expose
the following `debug` parameter:
@ -90,32 +76,12 @@ notify:
webhook:
debug: true
method: POST
auth:
username: $$TOWER_USER
password: $$TOWER_PASS
username: myusername
password: mypassword
urls:
- http://tower.example.com/api/v1/job_templates/44/launch/
- http://tower.example.com/api/v1/job_templates/45/launch/
content_type: application/json
template: '{"name": "project.deploy","extra_vars": "{\"env\": \"dev\",\"git_branch\": \"{{ build.branch }}\",\"hipchat_token\": \"$$HIPCHAT_TOKEN\"}"}'
content_type: application/json
```
Example of a debug print result:
```
[debug] Webhook 1
URL: http://tower.example.com/api/v1/job_templates/44/launch/
METHOD: POST
HEADERS: map[Content-Type:[application/json] Authorization:[Basic EMfNB3fakB8EMfNB3fakB8==]]
REQUEST BODY: {"name": "project.deploy","extra_vars": "{\"env\": \"dev\",\"git_branch\": \"develop\",\"hipchat_token\": \"h1pchatT0k3n\"}"}
RESPONSE STATUS: 202 ACCEPTED
RESPONSE BODY: {"job": 236}
[debug] Webhook 2
URL: http://tower.example.com/api/v1/job_templates/45/launch/
METHOD: POST
HEADERS: map[Content-Type:[application/json] Authorization:[Basic EMfNB3fakB8EMfNB3fakB8==]]
REQUEST BODY: {"name": "project.deploy","extra_vars": "{\"env\": \"dev\",\"git_branch\": \"develop\",\"hipchat_token\": \"h1pchatT0k3n\"}"}
RESPONSE STATUS: 202 ACCEPTED
RESPONSE BODY: {"job": 406}
```

19
Dockerfile
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@ -1,14 +1,11 @@
# Docker image for the Drone Webhook plugin
#
# cd $GOPATH/src/github.com/drone-plugins/drone-webhook
# make deps build docker
FROM plugins/base:multiarch
MAINTAINER Drone.IO Community <drone-dev@googlegroups.com>
FROM alpine:3.3
LABEL org.label-schema.version=latest
LABEL org.label-schema.vcs-url="https://github.com/drone-plugins/drone-webhook.git"
LABEL org.label-schema.name="Drone Webhook"
LABEL org.label-schema.vendor="Drone.IO Community"
LABEL org.label-schema.schema-version="1.0"
RUN apk update && \
apk add \
ca-certificates && \
rm -rf /var/cache/apk/*
ADD drone-webhook /bin/
ADD release/linux/amd64/drone-webhook /bin/
ENTRYPOINT ["/bin/drone-webhook"]

11
Dockerfile.arm Normal file
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@ -0,0 +1,11 @@
FROM plugins/base:multiarch
MAINTAINER Drone.IO Community <drone-dev@googlegroups.com>
LABEL org.label-schema.version=latest
LABEL org.label-schema.vcs-url="https://github.com/drone-plugins/drone-webhook.git"
LABEL org.label-schema.name="Drone Webhook"
LABEL org.label-schema.vendor="Drone.IO Community"
LABEL org.label-schema.schema-version="1.0"
ADD release/linux/arm/drone-webhook /bin/
ENTRYPOINT ["/bin/drone-webhook"]

11
Dockerfile.arm64 Normal file
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@ -0,0 +1,11 @@
FROM plugins/base:multiarch
MAINTAINER Drone.IO Community <drone-dev@googlegroups.com>
LABEL org.label-schema.version=latest
LABEL org.label-schema.vcs-url="https://github.com/drone-plugins/drone-webhook.git"
LABEL org.label-schema.name="Drone Webhook"
LABEL org.label-schema.vendor="Drone.IO Community"
LABEL org.label-schema.schema-version="1.0"
ADD release/linux/arm64/drone-webhook /bin/
ENTRYPOINT ["/bin/drone-webhook"]

11
Dockerfile.windows Normal file
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@ -0,0 +1,11 @@
FROM microsoft/nanoserver:latest
MAINTAINER Drone.IO Community <drone-dev@googlegroups.com>
LABEL org.label-schema.version=latest
LABEL org.label-schema.vcs-url="https://github.com/drone-plugins/drone-webhook.git"
LABEL org.label-schema.name="Drone Webhook"
LABEL org.label-schema.vendor="Drone.IO Community"
LABEL org.label-schema.schema-version="1.0"
ADD release/windows/amd64/drone-webhook /bin/
ENTRYPOINT [ "/bin/drone-webhook" ]

46
MAINTAINERS
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@ -1,46 +0,0 @@
[people]
[people.bradrydzewski]
name = "Brad Rydzewski"
email = "brad@drone.io"
login = "bradrydzewski"
[people.Bugagazavr]
name = "Kirill"
email = ""
login = "Bugagazavr"
[people.donny-dont]
name = "Don Olmstead"
email = "donny-dont@gmail.com"
login = "donny-dont"
[people.jackspirou]
name = "Jack Spirou"
email = ""
login = "jackspirou"
[people.msteinert]
name = "Mike Steinert"
email = ""
login = "msteinert"
[people.nlf]
name = "Nathan LaFreniere"
email = ""
login = "nlf"
[people.tboerger]
name = "Thomas Boerger"
email = "thomas@webhippie.de"
login = "tboerger"
[people.athieriot]
name = "Aurélien Thieriot"
email = "a.thieriot@gmail.com"
login = "athieriot"
[org]
[org.core]
people = [
"bradrydzewski",
"Bugagazavr",
"donny-dont",
"jackspirou",
"msteinert",
"nlf",
"tboerger",
"athieriot"
]

34
Makefile
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@ -1,34 +0,0 @@
.PHONY: all clean deps fmt vet test docker
EXECUTABLE ?= drone-webhook
IMAGE ?= plugins/$(EXECUTABLE)
COMMIT ?= $(shell git rev-parse --short HEAD)
LDFLAGS = -X "main.buildCommit=$(COMMIT)"
PACKAGES = $(shell go list ./... | grep -v /vendor/)
all: deps build test
clean:
go clean -i ./...
deps:
go get -t ./...
fmt:
go fmt $(PACKAGES)
vet:
go vet $(PACKAGES)
test:
@for PKG in $(PACKAGES); do go test -cover -coverprofile $$GOPATH/src/$$PKG/coverage.out $$PKG || exit 1; done;
docker:
GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -ldflags '-s -w $(LDFLAGS)'
docker build --rm -t $(IMAGE) .
$(EXECUTABLE): $(wildcard *.go)
go build -ldflags '-s -w $(LDFLAGS)'
build: $(EXECUTABLE)

127
README.md
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@ -1,119 +1,46 @@
# drone-webhook
[![Build Status](http://beta.drone.io/api/badges/drone-plugins/drone-webhook/status.svg)](http://beta.drone.io/drone-plugins/drone-webhook)
[![Coverage Status](https://aircover.co/badges/drone-plugins/drone-webhook/coverage.svg)](https://aircover.co/drone-plugins/drone-webhook)
[![](https://badge.imagelayers.io/plugins/drone-webhook:latest.svg)](https://imagelayers.io/?images=plugins/drone-webhook:latest 'Get your own badge on imagelayers.io')
[![Join the chat at https://gitter.im/drone/drone](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/drone/drone)
[![Go Doc](https://godoc.org/github.com/drone-plugins/drone-webhook?status.svg)](http://godoc.org/github.com/drone-plugins/drone-webhook)
[![Go Report](https://goreportcard.com/badge/github.com/drone-plugins/drone-webhook)](https://goreportcard.com/report/github.com/drone-plugins/drone-webhook)
[![](https://images.microbadger.com/badges/image/plugins/webhook.svg)](https://microbadger.com/images/plugins/webhook "Get your own image badge on microbadger.com")
Drone plugin to send build status notifications via Webhook. For the usage information and a listing of the available options please take a look at [the docs](DOCS.md).
## Binary
## Build
Build the binary using `make`:
Build the binary with the following commands:
```
make deps build
```
### Example
```sh
./drone-webhook <<EOF
{
"repo": {
"clone_url": "git://github.com/drone/drone",
"owner": "drone",
"name": "drone",
"full_name": "drone/drone"
},
"system": {
"link_url": "https://beta.drone.io"
},
"build": {
"number": 22,
"status": "success",
"started_at": 1421029603,
"finished_at": 1421029813,
"message": "Update the Readme",
"author": "johnsmith",
"author_email": "john.smith@gmail.com"
"event": "push",
"branch": "master",
"commit": "436b7a6e2abaddfd35740527353e78a227ddcb2c",
"ref": "refs/heads/master"
},
"workspace": {
"root": "/drone/src",
"path": "/drone/src/github.com/drone/drone"
},
"vargs": {
"urls": [
"https://your.webhook/..."
],
"debug": true,
"auth": {
"username": "johnsmith",
"password": "secretPass"
},
"method": "POST",
"template": "{\"git_branch\": \"{{ .Build.Branch }}\"}",
"content_type": "application/json"
}
}
EOF
go build
```
## Docker
Build the container using `make`:
Build the Docker image with the following commands:
```
make deps docker
GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -a -tags netgo -o release/linux/amd64/drone-webhook
docker build --rm -t plugins/webhook .
```
### Example
### Usage
```sh
docker run -i plugins/drone-webhook <<EOF
{
"repo": {
"clone_url": "git://github.com/drone/drone",
"owner": "drone",
"name": "drone",
"full_name": "drone/drone"
},
"system": {
"link_url": "https://beta.drone.io"
},
"build": {
"number": 22,
"status": "success",
"started_at": 1421029603,
"finished_at": 1421029813,
"message": "Update the Readme",
"author": "johnsmith",
"author_email": "john.smith@gmail.com"
"event": "push",
"branch": "master",
"commit": "436b7a6e2abaddfd35740527353e78a227ddcb2c",
"ref": "refs/heads/master"
},
"workspace": {
"root": "/drone/src",
"path": "/drone/src/github.com/drone/drone"
},
"vargs": {
"urls": [
"https://your.webhook/..."
],
"debug": true,
"auth": {
"username": "johnsmith",
"password": "secretPass"
},
"method": "POST",
"template": "{\"git_branch\": \"{{ .Build.Branch }}\"}",
"content_type": "application/json"
}
}
EOF
```
docker run --rm \
-e PLUGIN_URLS=https://hooks.somplace.com/endpoing/... \
-e PLUGIN_HEADERS="HEADER1=value1" \
-e PLUGIN_USERNAME=drone \
-e PLUGIN_PASSWORD=password \
-e DRONE_REPO_OWNER=octocat \
-e DRONE_REPO_NAME=hello-world \
-e DRONE_COMMIT_SHA=7fd1a60b01f91b314f59955a4e4d4e80d8edf11d \
-e DRONE_COMMIT_BRANCH=master \
-e DRONE_COMMIT_AUTHOR=octocat \
-e DRONE_BUILD_NUMBER=1 \
-e DRONE_BUILD_STATUS=success \
-e DRONE_BUILD_LINK=http://github.com/octocat/hello-world \
-e DRONE_TAG=1.0.0 \
plugins/webhook
```

325
main.go
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@ -1,158 +1,191 @@
package main
import (
"bytes"
"crypto/tls"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"github.com/urfave/cli"
"log"
"os"
"github.com/drone/drone-go/drone"
"github.com/drone/drone-go/plugin"
"github.com/drone/drone-go/template"
)
const (
respFormat = "Webhook %d\n URL: %s\n RESPONSE STATUS: %s\n RESPONSE BODY: %s\n"
debugRespFormat = "Webhook %d\n URL: %s\n METHOD: %s\n HEADERS: %s\n REQUEST BODY: %s\n RESPONSE STATUS: %s\n RESPONSE BODY: %s\n"
)
var (
buildCommit string
)
var build = "0" // build number set at compile-time
func main() {
fmt.Printf("Drone Webhook Plugin built from %s\n", buildCommit)
system := drone.System{}
repo := drone.Repo{}
build := drone.Build{}
vargs := Params{}
plugin.Param("system", &system)
plugin.Param("repo", &repo)
plugin.Param("build", &build)
plugin.Param("vargs", &vargs)
plugin.MustParse()
if vargs.Method == "" {
vargs.Method = "POST"
app := cli.NewApp()
app.Name = "webhook plugin"
app.Usage = "webhook plugin"
app.Action = run
app.Version = fmt.Sprintf("1.0.0+%s", build)
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "method",
Usage: "webhook method",
EnvVar: "PLUGIN_METHOD",
Value: "POST",
},
cli.StringFlag{
Name: "username",
Usage: "username for basic auth",
EnvVar: "PLUGIN_USERNAME,WEBHOOK_USERNAME",
},
cli.StringFlag{
Name: "password",
Usage: "password for basic auth",
EnvVar: "PLUGIN_PASSWORD,WEBHOOK_PASSWORD",
},
cli.StringFlag{
Name: "content-type",
Usage: "content type",
EnvVar: "PLUGIN_CONTENT_TYPE",
Value: "application/json",
},
cli.StringFlag{
Name: "template",
Usage: "custom template for webhook",
EnvVar: "PLUGIN_TEMPLATE",
},
cli.StringSliceFlag{
Name: "headers",
Usage: "custom headers key map",
EnvVar: "PLUGIN_HEADERS",
},
cli.StringSliceFlag{
Name: "urls",
Usage: "list of urls to perform the action on",
EnvVar: "PLUGIN_URLS",
},
cli.BoolFlag{
Name: "debug",
Usage: "enable debug information",
EnvVar: "PLUGIN_DEBUG",
},
cli.BoolFlag{
Name: "skip-verify",
Usage: "skip ssl verification",
EnvVar: "PLUGIN_SKIP_VERIFY",
},
cli.StringFlag{
Name: "repo.owner",
Usage: "repository owner",
EnvVar: "DRONE_REPO_OWNER",
},
cli.StringFlag{
Name: "repo.name",
Usage: "repository name",
EnvVar: "DRONE_REPO_NAME",
},
cli.StringFlag{
Name: "commit.sha",
Usage: "git commit sha",
EnvVar: "DRONE_COMMIT_SHA",
},
cli.StringFlag{
Name: "commit.ref",
Value: "refs/heads/master",
Usage: "git commit ref",
EnvVar: "DRONE_COMMIT_REF",
},
cli.StringFlag{
Name: "commit.branch",
Value: "master",
Usage: "git commit branch",
EnvVar: "DRONE_COMMIT_BRANCH",
},
cli.StringFlag{
Name: "commit.author",
Usage: "git author name",
EnvVar: "DRONE_COMMIT_AUTHOR",
},
cli.StringFlag{
Name: "commit.message",
Usage: "commit message",
EnvVar: "DRONE_COMMIT_MESSAGE",
},
cli.StringFlag{
Name: "build.event",
Value: "push",
Usage: "build event",
EnvVar: "DRONE_BUILD_EVENT",
},
cli.IntFlag{
Name: "build.number",
Usage: "build number",
EnvVar: "DRONE_BUILD_NUMBER",
},
cli.StringFlag{
Name: "build.status",
Usage: "build status",
Value: "success",
EnvVar: "DRONE_BUILD_STATUS",
},
cli.StringFlag{
Name: "build.link",
Usage: "build link",
EnvVar: "DRONE_BUILD_LINK",
},
cli.Int64Flag{
Name: "build.started",
Usage: "build started",
EnvVar: "DRONE_BUILD_STARTED",
},
cli.Int64Flag{
Name: "build.created",
Usage: "build created",
EnvVar: "DRONE_BUILD_CREATED",
},
cli.StringFlag{
Name: "build.tag",
Usage: "build tag",
EnvVar: "DRONE_TAG",
},
cli.Int64Flag{
Name: "job.started",
Usage: "job started",
EnvVar: "DRONE_JOB_STARTED",
},
cli.StringFlag{
Name: "env-file",
Usage: "source env file",
},
}
if vargs.ContentType == "" {
vargs.ContentType = "application/json"
}
// Creates the payload, by default the payload
// is the build details in json format, but a custom
// template may also be used.
var buf bytes.Buffer
if vargs.Template == "" {
data := struct {
System drone.System `json:"system"`
Repo drone.Repo `json:"repo"`
Build drone.Build `json:"build"`
}{system, repo, build}
if err := json.NewEncoder(&buf).Encode(&data); err != nil {
fmt.Printf("Error: Failed to encode JSON payload. %s\n", err)
os.Exit(1)
}
} else {
err := template.Write(&buf, vargs.Template, &drone.Payload{
Build: &build,
Repo: &repo,
System: &system,
})
if err != nil {
fmt.Printf("Error: Failed to execute the content template. %s\n", err)
os.Exit(1)
}
}
// build and execute a request for each url.
// all auth, headers, method, template (payload),
// and content_type values will be applied to
// every webhook request.
for i, rawurl := range vargs.URLs {
uri, err := url.Parse(rawurl)
if err != nil {
fmt.Printf("Error: Failed to parse the hook URL. %s\n", err)
os.Exit(1)
}
b := buf.Bytes()
r := bytes.NewReader(b)
req, err := http.NewRequest(vargs.Method, uri.String(), r)
if err != nil {
fmt.Printf("Error: Failed to create the HTTP request. %s\n", err)
os.Exit(1)
}
req.Header.Set("Content-Type", vargs.ContentType)
for key, value := range vargs.Headers {
req.Header.Set(key, value)
}
if vargs.Auth.Username != "" {
req.SetBasicAuth(vargs.Auth.Username, vargs.Auth.Password)
}
client := http.DefaultClient
if vargs.SkipVerify {
client = &http.Client{
Transport: &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
},
}
}
resp, err := client.Do(req)
if err != nil {
fmt.Printf("Error: Failed to execute the HTTP request. %s\n", err)
os.Exit(1)
}
defer resp.Body.Close()
if vargs.Debug || resp.StatusCode >= http.StatusBadRequest {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
fmt.Printf("Error: Failed to read the HTTP response body. %s\n", err)
}
if vargs.Debug {
fmt.Printf(
debugRespFormat,
i+1,
req.URL,
req.Method,
req.Header,
string(b),
resp.Status,
string(body),
)
} else {
fmt.Printf(
respFormat,
i+1,
req.URL,
resp.Status,
string(body),
)
}
}
if err := app.Run(os.Args); err != nil {
log.Fatal(err)
}
}
func run(c *cli.Context) error {
plugin := Plugin{
Repo: Repo{
Owner: c.String("repo.owner"),
Name: c.String("repo.name"),
},
Build: Build{
Tag: c.String("build.tag"),
Number: c.Int("build.number"),
Event: c.String("build.event"),
Status: c.String("build.status"),
Commit: c.String("commit.sha"),
Ref: c.String("commit.ref"),
Branch: c.String("commit.branch"),
Author: c.String("commit.author"),
Message: c.String("commit.message"),
Link: c.String("build.link"),
Started: c.Int64("build.started"),
Created: c.Int64("build.created"),
},
Job: Job{
Started: c.Int64("job.started"),
},
Config: Config{
Method: c.String("method"),
Username: c.String("username"),
Password: c.String("password"),
ContentType: c.String("content-type"),
Template: c.String("template"),
Headers: c.StringSlice("headers"),
URLs: c.StringSlice("urls"),
Debug: c.Bool("debug"),
SkipVerify: c.Bool("skip-verify"),
},
}
return plugin.Exec()
}

170
plugin.go Normal file
View File

@ -0,0 +1,170 @@
package main
import (
"bytes"
"crypto/tls"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"os"
"strings"
)
const (
respFormat = "Webhook %d\n URL: %s\n RESPONSE STATUS: %s\n RESPONSE BODY: %s\n"
debugRespFormat = "Webhook %d\n URL: %s\n METHOD: %s\n HEADERS: %s\n REQUEST BODY: %s\n RESPONSE STATUS: %s\n RESPONSE BODY: %s\n"
)
type (
Repo struct {
Owner string `json:"owner"`
Name string `json:"name"`
}
Build struct {
Tag string `json:"tag"`
Event string `json:"event"`
Number int `json:"number"`
Commit string `json:"commit"`
Ref string `json:"ref"`
Branch string `json:"branch"`
Author string `json:"author"`
Message string `json:"message"`
Status string `json:"status"`
Link string `json:"link"`
Started int64 `json:"started"`
Created int64 `json:"created"`
}
Config struct {
Method string
Username string
Password string
ContentType string
Template string
Headers []string
URLs []string
Debug bool
SkipVerify bool
}
Job struct {
Started int64 `json:"started"`
}
Plugin struct {
Repo Repo
Build Build
Config Config
Job Job
}
)
func (p Plugin) Exec() error {
var buf bytes.Buffer
var b []byte
if p.Config.Template == "" {
data := struct {
Repo Repo `json:"repo"`
Build Build `json:"build"`
}{p.Repo, p.Build}
if err := json.NewEncoder(&buf).Encode(&data); err != nil {
fmt.Printf("Error: Failed to encode JSON payload. %s\n", err)
return err
}
b = buf.Bytes()
} else {
txt, err := RenderTrim(p.Config.Template, p)
if err != nil {
return err
}
text := txt
b = []byte(text)
}
// build and execute a request for each url.
// all auth, headers, method, template (payload),
// and content_type values will be applied to
// every webhook request.
for i, rawurl := range p.Config.URLs {
uri, err := url.Parse(rawurl)
if err != nil {
fmt.Printf("Error: Failed to parse the hook URL. %s\n", err)
os.Exit(1)
}
r := bytes.NewReader(b)
req, err := http.NewRequest(p.Config.Method, uri.String(), r)
if err != nil {
fmt.Printf("Error: Failed to create the HTTP request. %s\n", err)
return err
}
req.Header.Set("Content-Type", p.Config.ContentType)
for _, value := range p.Config.Headers {
header := strings.Split(value, "=")
req.Header.Set(header[0], header[1])
}
if p.Config.Username != "" && p.Config.Password != "" {
req.SetBasicAuth(p.Config.Username, p.Config.Password)
}
client := http.DefaultClient
if p.Config.SkipVerify {
client = &http.Client{
Transport: &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
},
}
}
resp, err := client.Do(req)
if err != nil {
fmt.Printf("Error: Failed to execute the HTTP request. %s\n", err)
return err
}
defer resp.Body.Close()
if p.Config.Debug || resp.StatusCode >= http.StatusBadRequest {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
fmt.Printf("Error: Failed to read the HTTP response body. %s\n", err)
}
if p.Config.Debug {
fmt.Printf(
debugRespFormat,
i+1,
req.URL,
req.Method,
req.Header,
string(b),
resp.Status,
string(body),
)
} else {
fmt.Printf(
respFormat,
i+1,
req.URL,
resp.Status,
string(body),
)
}
}
}
return nil
}

137
template.go Normal file
View File

@ -0,0 +1,137 @@
package main
import (
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
"time"
"unicode"
"unicode/utf8"
"github.com/aymerick/raymond"
)
func init() {
raymond.RegisterHelpers(funcs)
}
// Render parses and executes a template, returning the results in string format.
func Render(template string, payload interface{}) (s string, err error) {
u, err := url.Parse(template)
if err == nil {
switch u.Scheme {
case "http", "https":
res, err := http.Get(template)
if err != nil {
return s, err
}
defer res.Body.Close()
out, err := ioutil.ReadAll(res.Body)
if err != nil {
return s, err
}
template = string(out)
case "file":
out, err := ioutil.ReadFile(u.Path)
if err != nil {
return s, err
}
template = string(out)
}
}
return raymond.Render(template, payload)
}
// RenderTrim parses and executes a template, returning the results in string
// format. The result is trimmed to remove left and right padding and newlines
// that may be added unintentially in the template markup.
func RenderTrim(template string, playload interface{}) (string, error) {
out, err := Render(template, playload)
return strings.Trim(out, " \n"), err
}
var funcs = map[string]interface{}{
"uppercasefirst": uppercaseFirst,
"uppercase": strings.ToUpper,
"lowercase": strings.ToLower,
"duration": toDuration,
"datetime": toDatetime,
"success": isSuccess,
"failure": isFailure,
"truncate": truncate,
"urlencode": urlencode,
"since": since,
}
func truncate(s string, len int) string {
if utf8.RuneCountInString(s) <= len {
return s
}
runes := []rune(s)
return string(runes[:len])
}
func uppercaseFirst(s string) string {
a := []rune(s)
a[0] = unicode.ToUpper(a[0])
s = string(a)
return s
}
func toDuration(started, finished float64) string {
return fmt.Sprintln(time.Duration(finished-started) * time.Second)
}
func toDatetime(timestamp float64, layout, zone string) string {
if len(zone) == 0 {
return time.Unix(int64(timestamp), 0).Format(layout)
}
loc, err := time.LoadLocation(zone)
if err != nil {
return time.Unix(int64(timestamp), 0).Local().Format(layout)
}
return time.Unix(int64(timestamp), 0).In(loc).Format(layout)
}
func isSuccess(conditional bool, options *raymond.Options) string {
if !conditional {
return options.Inverse()
}
switch options.ParamStr(0) {
case "success":
return options.Fn()
default:
return options.Inverse()
}
}
func isFailure(conditional bool, options *raymond.Options) string {
if !conditional {
return options.Inverse()
}
switch options.ParamStr(0) {
case "failure", "error", "killed":
return options.Fn()
default:
return options.Inverse()
}
}
func urlencode(options *raymond.Options) string {
return url.QueryEscape(options.Fn())
}
func since(start int64) string {
// NOTE: not using `time.Since()` because the fractional second component
// will give us something like "40m12.917523438s" vs "40m12s". We lose
// some precision, but the format is much more readable.
now := time.Unix(time.Now().Unix(), 0)
return fmt.Sprintln(now.Sub(time.Unix(start, 0)))
}

19
types.go
View File

@ -1,19 +0,0 @@
package main
// Params represents the valid paramenter options for the webhook plugin.
type Params struct {
URLs []string `json:"urls"`
SkipVerify bool `json:"skip_verify"`
Debug bool `json:"debug"`
Auth Auth `json:"auth"`
Headers map[string]string `json:"header"`
Method string `json:"method"`
Template string `json:"template"`
ContentType string `json:"content_type"`
}
// Auth represents a basic HTTP authentication username and password.
type Auth struct {
Username string `json:"username"`
Password string `json:"password"`
}

13
vendor.yml
View File

@ -1,13 +0,0 @@
vendors:
- path: github.com/aymerick/raymond
rev: a2232af10b53ef1ae5a767f5178db3a6c1dab655
- path: github.com/drone/drone-go
rev: eaa41f7836a191224ec5702d2458db07882ec269
- path: github.com/golang/protobuf
rev: 0c1f6d65b5a189c2250d10e71a5506f06f9fa0a0
- path: golang.org/x/net
rev: 3f122ce3dbbe488b7e6a8bdb26f41edec852a40b
- path: golang.org/x/oauth2
rev: 65a8d08c6292395d47053be10b3c5e91960def76
- path: google.golang.org/appengine
rev: 7f59a8c76b8594d06044bfe0bcbe475cb2020482

59
vendor/github.com/aymerick/raymond/README.md generated vendored
View File

@ -22,6 +22,7 @@ The full API documentation is available here: <http://godoc.org/github.com/aymer
- [The `with` block helper](#the-with-block-helper)
- [The `lookup` helper](#the-lookup-helper)
- [The `log` helper](#the-log-helper)
- [The `equal` helper](#the-equal-helper)
- [Block Helpers](#block-helpers)
- [Block Evaluation](#block-evaluation)
- [Conditional](#conditional)
@ -84,7 +85,7 @@ func main() {
result, err := raymond.Render(tpl, ctx)
if err != nil {
panic("Please fill a bug :)")
panic("Please report a bug :)")
}
fmt.Print(result)
@ -189,9 +190,9 @@ result := tpl.MustExec(ctx)
The rendering context can contain any type of values, including `array`, `slice`, `map`, `struct` and `func`.
When using structs, be warned that only exported fields are accessible. However you can access exported fields in template with their lowercase names.
When using structs, be warned that only exported fields are accessible. However you can access exported fields in template with their lowercase names. For example, both `{{author.firstName}}` and `{{Author.FirstName}}` references give the same result, as long as `Author` and `FirstName` are exported struct fields.
For example, both `{{author.firstName}}` and `{{Author.FirstName}}` references give the same result, as long as `Author` and `FirstName` are exported struct fields.
More, you can use the `handlebars` struct tag to specify a template variable name different from the struct field name.
```go
package main
@ -211,16 +212,10 @@ func main() {
{{#each comments}}
<h2>By {{author.firstName}} {{author.lastName}}</h2>
<div class="body">{{body}}</div>
<div class="body">{{content}}</div>
{{/each}}
</div>`
type Post struct {
Author Person
Body string
Comments []Comment
}
type Person struct {
FirstName string
LastName string
@ -228,7 +223,13 @@ func main() {
type Comment struct {
Author Person
Body string
Body string `handlebars:"content"`
}
type Post struct {
Author Person
Body string
Comments []Comment
}
ctx := Post{
@ -262,7 +263,6 @@ Output:
</div>
```
## HTML Escaping
By default, the result of a mustache expression is HTML escaped. Use the triple mustache `{{{` to output unescaped values.
@ -643,6 +643,41 @@ The `log` helper allows for logging while rendering a template.
Note that the handlebars.js `@level` variable is not supported.
#### The `equal` helper
The `equal` helper renders a block if the string version of both arguments are equals.
For example that template:
```html
{{#equal foo "bar"}}foo is bar{{/equal}}
{{#equal foo baz}}foo is the same as baz{{/equal}}
{{#equal nb 0}}nothing{{/equal}}
{{#equal nb 1}}there is one{{/equal}}
{{#equal nb "1"}}everything is stringified before comparison{{/equal}}
```
With that context:
```go
ctx := map[string]interface{}{
"foo": "bar",
"baz": "bar",
"nb": 1,
}
```
Outputs:
```html
foo is bar
foo is the same as baz
there is one
everything is stringified before comparison
```
### Block Helpers
Block helpers make it possible to define custom iterators and other functionality that can invoke the passed block with a new context.

21
vendor/github.com/aymerick/raymond/eval.go generated vendored
View File

@ -324,7 +324,11 @@ func (v *evalVisitor) evalField(ctx reflect.Value, fieldName string, exprRoot bo
if tField, ok := ctx.Type().FieldByName(expFieldName); ok && (tField.PkgPath == "") {
// struct field
result = ctx.FieldByIndex(tField.Index)
break
}
// attempts to find template variable name as a struct tag
result = v.evalStructTag(ctx, fieldName)
case reflect.Map:
nameVal := reflect.ValueOf(fieldName)
if nameVal.Type().AssignableTo(ctx.Type().Key()) {
@ -387,6 +391,23 @@ func (v *evalVisitor) evalFieldFunc(name string, funcVal reflect.Value, exprRoot
return v.callFunc(name, funcVal, options)
}
// evalStructTag checks for the existence of a struct tag containing the
// name of the variable in the template. This allows for a template variable to
// be separated from the field in the struct.
func (v *evalVisitor) evalStructTag(ctx reflect.Value, name string) reflect.Value {
val := reflect.ValueOf(ctx.Interface())
for i := 0; i < val.NumField(); i++ {
field := val.Type().Field(i)
tag := field.Tag.Get("handlebars")
if tag == name {
return val.Field(i)
}
}
return zero
}
// findBlockParam returns node's block parameter
func (v *evalVisitor) findBlockParam(node *ast.PathExpression) (string, interface{}) {
if len(node.Parts) > 0 {

11
vendor/github.com/aymerick/raymond/helper.go generated vendored
View File

@ -31,6 +31,7 @@ func init() {
RegisterHelper("each", eachHelper)
RegisterHelper("log", logHelper)
RegisterHelper("lookup", lookupHelper)
RegisterHelper("equal", equalHelper)
}
// RegisterHelper registers a global helper. That helper will be available to all templates.
@ -369,3 +370,13 @@ func logHelper(message string) interface{} {
func lookupHelper(obj interface{}, field string, options *Options) interface{} {
return Str(options.Eval(obj, field))
}
// #equal helper
// Ref: https://github.com/aymerick/raymond/issues/7
func equalHelper(a interface{}, b interface{}, options *Options) interface{} {
if Str(a) == Str(b) {
return options.Fn()
}
return ""
}

202
vendor/github.com/drone/drone-go/LICENSE generated vendored
View File

@ -1,202 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
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(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
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within such NOTICE file, excluding those notices that do not
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of the following places: within a NOTICE text file distributed
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of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
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that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
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the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
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6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "{}"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright {yyyy} {name of copyright owner}
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
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limitations under the License.

50
vendor/github.com/drone/drone-go/README.md generated vendored
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@ -1,50 +0,0 @@
# drone-go
[![Build Status](http://beta.drone.io/api/badges/drone/drone-go/status.svg)](http://beta.drone.io/drone/drone-go)
drone-go is a Go client library for accessing the Drone [API](http://readme.drone.io/devs/api/builds/) and writing [plugins](http://readme.drone.io/plugins/).
Download the package using `go get`:
```Go
go get "github.com/drone/drone-go/drone"
go get "github.com/drone/drone-go/plugin"
```
Import the package:
```Go
import "github.com/drone/drone-go/drone"
```
Create the client:
```Go
const (
token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"
host = "http://drone.company.com"
)
client := drone.NewClientToken(host, token)
```
Get the current user:
```Go
user, err := client.Self()
fmt.Println(user)
```
Get the repository list:
```Go
repos, err := client.RepoList()
fmt.Println(repos)
```
Get the named repository:
```Go
repo, err := client.Repo("drone", "drone-go")
fmt.Println(repo)
```

404
vendor/github.com/drone/drone-go/drone/client.go generated vendored
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@ -1,404 +0,0 @@
package drone
//go:generate mockery -all
//go:generate mv mocks/Client.go mocks/client.go
import (
"bytes"
"crypto/tls"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"golang.org/x/oauth2"
)
const (
pathSelf = "%s/api/user"
pathFeed = "%s/api/user/feed"
pathRepos = "%s/api/user/repos"
pathRepo = "%s/api/repos/%s/%s"
pathEncrypt = "%s/api/repos/%s/%s/encrypt"
pathBuilds = "%s/api/repos/%s/%s/builds"
pathBuild = "%s/api/repos/%s/%s/builds/%v"
pathJob = "%s/api/repos/%s/%s/builds/%d/%d"
pathLog = "%s/api/repos/%s/%s/logs/%d/%d"
pathKey = "%s/api/repos/%s/%s/key"
pathSign = "%s/api/repos/%s/%s/sign"
pathSecrets = "%s/api/repos/%s/%s/secrets"
pathSecret = "%s/api/repos/%s/%s/secrets/%s"
pathNodes = "%s/api/nodes"
pathNode = "%s/api/nodes/%d"
pathUsers = "%s/api/users"
pathUser = "%s/api/users/%s"
)
type client struct {
client *http.Client
base string // base url
}
// NewClient returns a client at the specified url.
func NewClient(uri string) Client {
return &client{http.DefaultClient, uri}
}
// NewClientToken returns a client at the specified url that
// authenticates all outbound requests with the given token.
func NewClientToken(uri, token string) Client {
config := new(oauth2.Config)
auther := config.Client(oauth2.NoContext, &oauth2.Token{AccessToken: token})
return &client{auther, uri}
}
// NewClientTokenTLS returns a client at the specified url that
// authenticates all outbound requests with the given token and
// tls.Config if provided.
func NewClientTokenTLS(uri, token string, c *tls.Config) Client {
config := new(oauth2.Config)
auther := config.Client(oauth2.NoContext, &oauth2.Token{AccessToken: token})
if c != nil {
auther.Transport.(*oauth2.Transport).Base = &http.Transport{TLSClientConfig: c}
}
return &client{auther, uri}
}
// SetClient sets the default http client. This should be
// used in conjunction with golang.org/x/oauth2 to
// authenticate requests to the Drone server.
func (c *client) SetClient(client *http.Client) {
c.client = client
}
// Self returns the currently authenticated user.
func (c *client) Self() (*User, error) {
out := new(User)
uri := fmt.Sprintf(pathSelf, c.base)
err := c.get(uri, out)
return out, err
}
// User returns a user by login.
func (c *client) User(login string) (*User, error) {
out := new(User)
uri := fmt.Sprintf(pathUser, c.base, login)
err := c.get(uri, out)
return out, err
}
// UserList returns a list of all registered users.
func (c *client) UserList() ([]*User, error) {
var out []*User
uri := fmt.Sprintf(pathUsers, c.base)
err := c.get(uri, &out)
return out, err
}
// UserPost creates a new user account.
func (c *client) UserPost(in *User) (*User, error) {
out := new(User)
uri := fmt.Sprintf(pathUsers, c.base)
err := c.post(uri, in, out)
return out, err
}
// UserPatch updates a user account.
func (c *client) UserPatch(in *User) (*User, error) {
out := new(User)
uri := fmt.Sprintf(pathUser, c.base, in.Login)
err := c.patch(uri, in, out)
return out, err
}
// UserDel deletes a user account.
func (c *client) UserDel(login string) error {
uri := fmt.Sprintf(pathUser, c.base, login)
err := c.delete(uri)
return err
}
// UserFeed returns the user's activity feed.
func (c *client) UserFeed() ([]*Activity, error) {
var out []*Activity
uri := fmt.Sprintf(pathFeed, c.base)
err := c.get(uri, &out)
return out, err
}
// Repo returns a repository by name.
func (c *client) Repo(owner string, name string) (*Repo, error) {
out := new(Repo)
uri := fmt.Sprintf(pathRepo, c.base, owner, name)
err := c.get(uri, out)
return out, err
}
// RepoList returns a list of all repositories to which
// the user has explicit access in the host system.
func (c *client) RepoList() ([]*Repo, error) {
var out []*Repo
uri := fmt.Sprintf(pathRepos, c.base)
err := c.get(uri, &out)
return out, err
}
// RepoPost activates a repository.
func (c *client) RepoPost(owner string, name string) (*Repo, error) {
out := new(Repo)
uri := fmt.Sprintf(pathRepo, c.base, owner, name)
err := c.post(uri, nil, out)
return out, err
}
// RepoPatch updates a repository.
func (c *client) RepoPatch(in *Repo) (*Repo, error) {
out := new(Repo)
uri := fmt.Sprintf(pathRepo, c.base, in.Owner, in.Name)
err := c.patch(uri, in, out)
return out, err
}
// RepoDel deletes a repository.
func (c *client) RepoDel(owner, name string) error {
uri := fmt.Sprintf(pathRepo, c.base, owner, name)
err := c.delete(uri)
return err
}
// RepoKey returns a repository public key.
func (c *client) RepoKey(owner, name string) (*Key, error) {
out := new(Key)
uri := fmt.Sprintf(pathKey, c.base, owner, name)
rc, err := c.stream(uri, "GET", nil, nil)
if err != nil {
return nil, err
}
defer rc.Close()
raw, _ := ioutil.ReadAll(rc)
out.Public = string(raw)
return out, err
}
// Build returns a repository build by number.
func (c *client) Build(owner, name string, num int) (*Build, error) {
out := new(Build)
uri := fmt.Sprintf(pathBuild, c.base, owner, name, num)
err := c.get(uri, out)
return out, err
}
// Build returns the latest repository build by branch.
func (c *client) BuildLast(owner, name, branch string) (*Build, error) {
out := new(Build)
uri := fmt.Sprintf(pathBuild, c.base, owner, name, "latest")
if len(branch) != 0 {
uri += "?branch=" + branch
}
err := c.get(uri, out)
return out, err
}
// BuildList returns a list of recent builds for the
// the specified repository.
func (c *client) BuildList(owner, name string) ([]*Build, error) {
var out []*Build
uri := fmt.Sprintf(pathBuilds, c.base, owner, name)
err := c.get(uri, &out)
return out, err
}
// BuildStart re-starts a stopped build.
func (c *client) BuildStart(owner, name string, num int) (*Build, error) {
out := new(Build)
uri := fmt.Sprintf(pathBuild, c.base, owner, name, num)
err := c.post(uri, nil, out)
return out, err
}
// BuildStop cancels the running job.
func (c *client) BuildStop(owner, name string, num, job int) error {
uri := fmt.Sprintf(pathJob, c.base, owner, name, num, job)
err := c.delete(uri)
return err
}
// BuildFork re-starts a stopped build with a new build number,
// preserving the prior history.
func (c *client) BuildFork(owner, name string, num int) (*Build, error) {
out := new(Build)
uri := fmt.Sprintf(pathBuild+"?fork=true", c.base, owner, name, num)
err := c.post(uri, nil, out)
return out, err
}
// BuildLogs returns the build logs for the specified job.
func (c *client) BuildLogs(owner, name string, num, job int) (io.ReadCloser, error) {
uri := fmt.Sprintf(pathLog, c.base, owner, name, num, job)
return c.stream(uri, "GET", nil, nil)
}
// Deploy triggers a deployment for an existing build using the
// specified target environment.
func (c *client) Deploy(owner, name string, num int, env string) (*Build, error) {
out := new(Build)
val := url.Values{}
val.Set("fork", "true")
val.Set("event", "deployment")
val.Set("deploy_to", env)
uri := fmt.Sprintf(pathBuild+"?"+val.Encode(), c.base, owner, name, num)
err := c.post(uri, nil, out)
return out, err
}
// SecretPost create or updates a repository secret.
func (c *client) SecretPost(owner, name string, secret *Secret) error {
uri := fmt.Sprintf(pathSecrets, c.base, owner, name)
return c.post(uri, secret, nil)
}
// SecretDel deletes a named repository secret.
func (c *client) SecretDel(owner, name, secret string) error {
uri := fmt.Sprintf(pathSecret, c.base, owner, name, secret)
return c.delete(uri)
}
// Sign returns a cryptographic signature for the input string.
func (c *client) Sign(owner, name string, in []byte) ([]byte, error) {
buf := bytes.Buffer{}
buf.Write(in)
uri := fmt.Sprintf(pathSign, c.base, owner, name)
rc, err := c.stream(uri, "POST", buf, nil)
if err != nil {
return nil, err
}
defer rc.Close()
return ioutil.ReadAll(rc)
}
// Node returns a node by id.
func (c *client) Node(id int64) (*Node, error) {
out := new(Node)
uri := fmt.Sprintf(pathNode, c.base, id)
err := c.get(uri, out)
return out, err
}
// NodeList returns a list of all registered worker nodes.
func (c *client) NodeList() ([]*Node, error) {
var out []*Node
uri := fmt.Sprintf(pathNodes, c.base)
err := c.get(uri, &out)
return out, err
}
// NodePost registers a new worker node.
func (c *client) NodePost(in *Node) (*Node, error) {
out := new(Node)
uri := fmt.Sprintf(pathNodes, c.base)
err := c.post(uri, in, out)
return out, err
}
// NodeDel deletes a worker node.
func (c *client) NodeDel(id int64) error {
uri := fmt.Sprintf(pathNode, c.base, id)
err := c.delete(uri)
return err
}
//
// http request helper functions
//
// helper function for making an http GET request.
func (c *client) get(rawurl string, out interface{}) error {
return c.do(rawurl, "GET", nil, out)
}
// helper function for making an http POST request.
func (c *client) post(rawurl string, in, out interface{}) error {
return c.do(rawurl, "POST", in, out)
}
// helper function for making an http PUT request.
func (c *client) put(rawurl string, in, out interface{}) error {
return c.do(rawurl, "PUT", in, out)
}
// helper function for making an http PATCH request.
func (c *client) patch(rawurl string, in, out interface{}) error {
return c.do(rawurl, "PATCH", in, out)
}
// helper function for making an http DELETE request.
func (c *client) delete(rawurl string) error {
return c.do(rawurl, "DELETE", nil, nil)
}
// helper function to make an http request
func (c *client) do(rawurl, method string, in, out interface{}) error {
// executes the http request and returns the body as
// and io.ReadCloser
body, err := c.stream(rawurl, method, in, out)
if err != nil {
return err
}
defer body.Close()
// if a json response is expected, parse and return
// the json response.
if out != nil {
return json.NewDecoder(body).Decode(out)
}
return nil
}
// helper function to stream an http request
func (c *client) stream(rawurl, method string, in, out interface{}) (io.ReadCloser, error) {
uri, err := url.Parse(rawurl)
if err != nil {
return nil, err
}
// if we are posting or putting data, we need to
// write it to the body of the request.
var buf io.ReadWriter
if in == nil {
// nothing
} else if rw, ok := in.(io.ReadWriter); ok {
buf = rw
} else {
buf = new(bytes.Buffer)
err := json.NewEncoder(buf).Encode(in)
if err != nil {
return nil, err
}
}
// creates a new http request to bitbucket.
req, err := http.NewRequest(method, uri.String(), buf)
if err != nil {
return nil, err
}
if in == nil {
// nothing
} else if _, ok := in.(io.ReadWriter); ok {
req.Header.Set("Content-Type", "plain/text")
} else {
req.Header.Set("Content-Type", "application/json")
}
resp, err := c.client.Do(req)
if err != nil {
return nil, err
}
if resp.StatusCode > http.StatusPartialContent {
defer resp.Body.Close()
out, _ := ioutil.ReadAll(resp.Body)
return nil, fmt.Errorf(string(out))
}
return resp.Body, nil
}

48
vendor/github.com/drone/drone-go/drone/const.go generated vendored
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@ -1,48 +0,0 @@
package drone
// Events
const (
EventPush = "push"
EventPull = "pull_request"
EventTag = "tag"
EventDeploy = "deployment"
)
// Statuses
const (
StatusSkipped = "skipped"
StatusPending = "pending"
StatusRunning = "running"
StatusSuccess = "success"
StatusFailure = "failure"
StatusKilled = "killed"
StatusError = "error"
)
// Architectures
const (
Freebsd_386 uint = iota
Freebsd_amd64
Freebsd_arm
Linux_386
Linux_amd64
Linux_arm
Linux_arm64
Solaris_amd64
Windows_386
Windows_amd64
)
// Architecture Map
var Archs = map[string]uint{
"freebsd_386": Freebsd_386,
"freebsd_amd64": Freebsd_amd64,
"freebsd_arm": Freebsd_arm,
"linux_386": Linux_386,
"linux_amd64": Linux_amd64,
"linux_arm": Linux_arm,
"linux_arm64": Linux_arm64,
"solaris_amd64": Solaris_amd64,
"windows_386": Windows_386,
"windows_amd64": Windows_amd64,
}

95
vendor/github.com/drone/drone-go/drone/interface.go generated vendored
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@ -1,95 +0,0 @@
package drone
import "io"
// Client describes a drone client.
type Client interface {
// Self returns the currently authenticated user.
Self() (*User, error)
// User returns a user by login.
User(string) (*User, error)
// UserList returns a list of all registered users.
UserList() ([]*User, error)
// UserPost creates a new user account.
UserPost(*User) (*User, error)
// UserPatch updates a user account.
UserPatch(*User) (*User, error)
// UserDel deletes a user account.
UserDel(string) error
// UserFeed returns the user's activity feed.
UserFeed() ([]*Activity, error)
// Repo returns a repository by name.
Repo(string, string) (*Repo, error)
// RepoList returns a list of all repositories to which
// the user has explicit access in the host system.
RepoList() ([]*Repo, error)
// RepoPost activates a repository.
RepoPost(string, string) (*Repo, error)
// RepoPatch updates a repository.
RepoPatch(*Repo) (*Repo, error)
// RepoDel deletes a repository.
RepoDel(string, string) error
// RepoKey returns a repository public key.
RepoKey(string, string) (*Key, error)
// Build returns a repository build by number.
Build(string, string, int) (*Build, error)
// BuildLast returns the latest repository build by branch.
// An empty branch will result in the default branch.
BuildLast(string, string, string) (*Build, error)
// BuildList returns a list of recent builds for the
// the specified repository.
BuildList(string, string) ([]*Build, error)
// BuildStart re-starts a stopped build.
BuildStart(string, string, int) (*Build, error)
// BuildStop stops the specified running job for given build.
BuildStop(string, string, int, int) error
// BuildFork re-starts a stopped build with a new build number,
// preserving the prior history.
BuildFork(string, string, int) (*Build, error)
// BuildLogs returns the build logs for the specified job.
BuildLogs(string, string, int, int) (io.ReadCloser, error)
// Deploy triggers a deployment for an existing build using the
// specified target environment.
Deploy(string, string, int, string) (*Build, error)
// Sign returns a cryptographic signature for the input string.
Sign(string, string, []byte) ([]byte, error)
// SecretPost create or updates a repository secret.
SecretPost(string, string, *Secret) error
// SecretDel deletes a named repository secret.
SecretDel(string, string, string) error
// Node returns a node by id.
Node(int64) (*Node, error)
// NodeList returns a list of all registered worker nodes.
NodeList() ([]*Node, error)
// NodePost registers a new worker node.
NodePost(*Node) (*Node, error)
// NodeDel deletes a worker node.
NodeDel(int64) error
}

209
vendor/github.com/drone/drone-go/drone/types.go generated vendored
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@ -1,209 +0,0 @@
package drone
import "encoding/json"
// User represents a user account.
type User struct {
ID int64 `json:"id"`
Login string `json:"login"`
Email string `json:"email"`
Avatar string `json:"avatar_url"`
Active bool `json:"active"`
Admin bool `json:"admin"`
}
// Repo represents a version control repository.
type Repo struct {
ID int64 `json:"id"`
Owner string `json:"owner"`
Name string `json:"name"`
FullName string `json:"full_name"`
Avatar string `json:"avatar_url"`
Link string `json:"link_url"`
Clone string `json:"clone_url"`
Branch string `json:"default_branch"`
Timeout int64 `json:"timeout"`
IsPrivate bool `json:"private"`
IsTrusted bool `json:"trusted"`
AllowPull bool `json:"allow_pr"`
AllowPush bool `json:"allow_push"`
AllowDeploy bool `json:"allow_deploys"`
AllowTag bool `json:"allow_tags"`
}
// Build represents the process of compiling and testing a changeset,
// typically triggered by the remote system (ie GitHub).
type Build struct {
ID int64 `json:"id"`
Number int `json:"number"`
Event string `json:"event"`
Status string `json:"status"`
Enqueued int64 `json:"enqueued_at"`
Created int64 `json:"created_at"`
Started int64 `json:"started_at"`
Finished int64 `json:"finished_at"`
Deploy string `json:"deploy_to"`
Commit string `json:"commit"`
Branch string `json:"branch"`
Ref string `json:"ref"`
Refspec string `json:"refspec"`
Remote string `json:"remote"`
Title string `json:"title"`
Message string `json:"message"`
Timestamp int64 `json:"timestamp"`
Author string `json:"author"`
Avatar string `json:"author_avatar"`
Email string `json:"author_email"`
Link string `json:"link_url"`
}
// Job represents a single job that is being executed as part
// of a Build.
type Job struct {
ID int64 `json:"id"`
Number int `json:"number"`
Status string `json:"status"`
ExitCode int `json:"exit_code"`
Enqueued int64 `json:"enqueued_at"`
Started int64 `json:"started_at"`
Finished int64 `json:"finished_at"`
Environment map[string]string `json:"environment"`
}
// Secret represents a repository secret.
type Secret struct {
ID int64 `json:"id"`
Name string `json:"name"`
Value string `json:"value"`
Image []string `json:"image"`
Event []string `json:"event"`
}
// Activity represents a build activity. It combines the
// build details with summary Repository information.
type Activity struct {
Owner string `json:"owner"`
Name string `json:"name"`
FullName string `json:"full_name"`
Number int `json:"number"`
Event string `json:"event"`
Status string `json:"status"`
Enqueued int64 `json:"enqueued_at"`
Created int64 `json:"created_at"`
Started int64 `json:"started_at"`
Finished int64 `json:"finished_at"`
Commit string `json:"commit"`
Branch string `json:"branch"`
Ref string `json:"ref"`
Refspec string `json:"refspec"`
Remote string `json:"remote"`
Title string `json:"title"`
Message string `json:"message"`
Timestamp int64 `json:"timestamp"`
Author string `json:"author"`
Avatar string `json:"author_avatar"`
Email string `json:"author_email"`
Link string `json:"link_url"`
}
// Node represents a local or remote Docker daemon that is
// responsible for running jobs.
type Node struct {
ID int64 `json:"id"`
Addr string `json:"address"`
Arch string `json:"architecture"`
Cert string `json:"cert"`
Key string `json:"key"`
CA string `json:"ca"`
}
// Key represents an RSA public and private key assigned to a
// repository. It may be used to clone private repositories, or as
// a deployment key.
type Key struct {
Public string `json:"public"`
Private string `json:"private"`
}
// Netrc defines a default .netrc file that should be injected
// into the build environment. It will be used to authorize access
// to https resources, such as git+https clones.
type Netrc struct {
Machine string `json:"machine"`
Login string `json:"login"`
Password string `json:"password"`
}
// netrc is only used to allow compatibility with older plugins that rely on
// the JSON "user" attribute as a password value. In Drone 0.6 breaking
// changes will be introduced and this netrc struct and the Netrc UnmarshalJSON
// and MarshalJSON will be removed.
type netrc struct {
Machine string `json:"machine"`
Login string `json:"login"`
Password string `json:"password"`
PasswordOld string `json:"user"`
}
// UnmarshalJSON implements the json.Unmarshaler interface.
func (n *Netrc) UnmarshalJSON(b []byte) error {
x := &netrc{}
err := json.Unmarshal(b, x)
if err != nil {
return err
}
n.Machine = x.Machine
n.Login = x.Login
n.Password = x.Password
if x.PasswordOld != "" {
n.Password = x.PasswordOld
}
return nil
}
// MarshalJSON implements the json.Marshaler interface.
func (n Netrc) MarshalJSON() ([]byte, error) {
x := &netrc{
Machine: n.Machine,
Login: n.Login,
Password: n.Password,
PasswordOld: n.Password,
}
return json.Marshal(x)
}
// System represents the drone system.
type System struct {
Version string `json:"version"`
Link string `json:"link_url"`
Plugins []string `json:"plugins"`
Globals []string `json:"globals"`
Escalates []string `json:"privileged_plugins"`
}
// Workspace defines the build's workspace inside the
// container. This helps the plugin locate the source
// code directory.
type Workspace struct {
Root string `json:"root"`
Path string `json:"path"`
Netrc *Netrc `json:"netrc"`
Keys *Key `json:"keys"`
}
// Payload defines the full payload send to plugins.
type Payload struct {
Yaml string `json:"config"`
YamlEnc string `json:"secret"`
Repo *Repo `json:"repo"`
Build *Build `json:"build"`
BuildLast *Build `json:"build_last"`
Job *Job `json:"job"`
Netrc *Netrc `json:"netrc"`
Keys *Key `json:"keys"`
System *System `json:"system"`
Workspace *Workspace `json:"workspace"`
Vargs interface{} `json:"vargs"`
}

127
vendor/github.com/drone/drone-go/drone/types_json.go generated vendored
View File

@ -1,127 +0,0 @@
package drone
import (
"encoding/json"
"strconv"
)
// StringSlice representes a string or an array of strings.
type StringSlice struct {
parts []string
}
// UnmarshalJSON unmarshals bytes into a StringSlice.
func (e *StringSlice) UnmarshalJSON(b []byte) error {
if len(b) == 0 {
return nil
}
p := make([]string, 0, 1)
if err := json.Unmarshal(b, &p); err != nil {
var s string
if err := json.Unmarshal(b, &s); err != nil {
return err
}
p = append(p, s)
}
e.parts = p
return nil
}
// Len returns the number of strings in a StringSlice.
func (e *StringSlice) Len() int {
if e == nil {
return 0
}
return len(e.parts)
}
// Slice returns the slice of strings in a StringSlice.
func (e *StringSlice) Slice() []string {
if e == nil {
return nil
}
return e.parts
}
// NewStringSlice takes a slice of strings and returns a StringSlice.
func NewStringSlice(parts []string) StringSlice {
return StringSlice{parts}
}
// StringMap representes a string or a map of strings.
type StringMap struct {
parts map[string]string
}
// UnmarshalJSON unmarshals bytes into a StringMap.
func (e *StringMap) UnmarshalJSON(b []byte) error {
if len(b) == 0 {
return nil
}
p := map[string]string{}
if err := json.Unmarshal(b, &p); err != nil {
var s string
if err := json.Unmarshal(b, &s); err != nil {
return err
}
p[""] = s
}
e.parts = p
return nil
}
// Len returns the number of elements in the StringMap.
func (e *StringMap) Len() int {
if e == nil {
return 0
}
return len(e.parts)
}
// String satisfies the fmt.Stringer interface.
func (e *StringMap) String() (str string) {
if e == nil {
return
}
for _, val := range e.parts {
return val // returns the first string value
}
return
}
// Map returns StringMap as a map of string to string.
func (e *StringMap) Map() map[string]string {
if e == nil {
return nil
}
return e.parts
}
// NewStringMap takes a map of string to string and returns a StringMap.
func NewStringMap(parts map[string]string) StringMap {
return StringMap{parts}
}
// StringInt representes a string or an integer value.
type StringInt struct {
value string
}
// UnmarshalJSON unmarshals bytes into a StringInt.
func (e *StringInt) UnmarshalJSON(b []byte) error {
var num int
err := json.Unmarshal(b, &num)
if err == nil {
e.value = strconv.Itoa(num)
return nil
}
return json.Unmarshal(b, &e.value)
}
func (e StringInt) String() string {
return e.value
}

134
vendor/github.com/drone/drone-go/plugin/plugin.go generated vendored
View File

@ -1,134 +0,0 @@
package plugin
import (
"bytes"
"encoding/json"
"fmt"
"io"
"os"
)
// Standard Input
var Stdin *ParamSet
func init() {
// defaults to stdin
Stdin = NewParamSet(os.Stdin)
// check for params after the double dash
// in the command string
for i, argv := range os.Args {
if argv == "--" {
arg := os.Args[i+1]
buf := bytes.NewBufferString(arg)
Stdin = NewParamSet(buf)
break
}
}
}
// this init function is deprecated, but I'm keeping it
// around just in case it proves useful in the future.
func deprecated_init() {
// if piping from stdin we can just exit
// and use the default Stdin value
stat, _ := os.Stdin.Stat()
if (stat.Mode() & os.ModeCharDevice) == 0 {
return
}
// check for params after the double dash
// in the command string
for i, argv := range os.Args {
if argv == "--" {
arg := os.Args[i+1]
buf := bytes.NewBufferString(arg)
Stdin = NewParamSet(buf)
return
}
}
// else use the first variable in the list
if len(os.Args) > 1 {
buf := bytes.NewBufferString(os.Args[1])
Stdin = NewParamSet(buf)
}
}
// ParamSet describes a parameter set.
type ParamSet struct {
reader io.Reader
params map[string]interface{}
}
// NewParamSet takes a io.Reader and returns a ParamSet.
func NewParamSet(reader io.Reader) *ParamSet {
var p = new(ParamSet)
p.reader = reader
p.params = map[string]interface{}{}
return p
}
// Param defines a parameter with the specified name.
func (p ParamSet) Param(name string, value interface{}) {
p.params[name] = value
}
// Parse parses parameter definitions from the map.
func (p ParamSet) Parse() error {
raw := map[string]json.RawMessage{}
err := json.NewDecoder(p.reader).Decode(&raw)
if err != nil {
return err
}
for key, val := range p.params {
data, ok := raw[key]
if !ok {
continue
}
err := json.Unmarshal(data, val)
if err != nil {
return fmt.Errorf("Unable to unarmshal %s. %s", key, err)
}
}
return nil
}
// Unmarshal parses the JSON payload from the command
// arguments and unmarshal into a value pointed to by v.
func (p ParamSet) Unmarshal(v interface{}) error {
return json.NewDecoder(p.reader).Decode(v)
}
// Param defines a parameter with the specified name.
func Param(name string, value interface{}) {
Stdin.Param(name, value)
}
// Parse parses parameter definitions from the map.
func Parse() error {
return Stdin.Parse()
}
// Unmarshal parses the JSON payload from the command
// arguments and unmarshal into a value pointed to by v.
func Unmarshal(v interface{}) error {
return Stdin.Unmarshal(v)
}
// MustUnmarshal parses the JSON payload from the command
// arguments and unmarshal into a value pointed to by v.
func MustUnmarshal(v interface{}) error {
return Stdin.Unmarshal(v)
}
// MustParse parses parameter definitions from the map
// and panics if there is a parsing error.
func MustParse() {
err := Parse()
if err != nil {
panic(err)
}
}

163
vendor/github.com/drone/drone-go/template/template.go generated vendored
View File

@ -1,163 +0,0 @@
package template
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"strings"
"time"
"unicode"
"unicode/utf8"
"github.com/aymerick/raymond"
"github.com/drone/drone-go/drone"
"net/url"
)
func init() {
raymond.RegisterHelpers(funcs)
}
// Render parses and executes a template, returning the results
// in string format.
func Render(template string, payload *drone.Payload) (string, error) {
if strings.HasPrefix(template, "http") {
resp, err := http.Get(template)
if err != nil {
return "", fmt.Errorf("Failed to fetch remote template: %s", err)
}
defer resp.Body.Close()
content, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", fmt.Errorf("Failed to read remote template: %s", err)
}
template = string(content)
}
return raymond.Render(template, normalize(payload))
}
// RenderTrim parses and executes a template, returning the results
// in string format. The result is trimmed to remove left and right
// padding and newlines that may be added unintentially in the
// template markup.
func RenderTrim(template string, payload *drone.Payload) (string, error) {
out, err := Render(template, payload)
return strings.Trim(out, " \n"), err
}
// Write parses and executes a template, writing the results to
// writer w.
func Write(w io.Writer, template string, payload *drone.Payload) error {
out, err := Render(template, payload)
if err != nil {
return err
}
_, err = io.WriteString(w, out)
return err
}
var funcs = map[string]interface{}{
"uppercasefirst": uppercaseFirst,
"uppercase": strings.ToUpper,
"lowercase": strings.ToLower,
"duration": toDuration,
"datetime": toDatetime,
"success": isSuccess,
"failure": isFailure,
"truncate": truncate,
"urlencode": urlencode,
}
// truncate is a helper function that truncates a string by a particular length.
func truncate(s string, len int) string {
if utf8.RuneCountInString(s) <= len {
return s
}
runes := []rune(s)
return string(runes[:len])
}
// uppercaseFirst is a helper function that takes a string and capitalizes
// the first letter.
func uppercaseFirst(s string) string {
a := []rune(s)
a[0] = unicode.ToUpper(a[0])
s = string(a)
return s
}
// toDuration is a helper function that calculates a duration for a start and
// and end time, and returns the duration in string format.
func toDuration(started, finished float64) string {
return fmt.Sprintln(time.Duration(finished-started) * time.Second)
}
// toDatetime is a helper function that converts a unix timestamp to a string.
func toDatetime(timestamp float64, layout, zone string) string {
if len(zone) == 0 {
return time.Unix(int64(timestamp), 0).Format(layout)
}
loc, err := time.LoadLocation(zone)
if err != nil {
fmt.Printf("Error parsing timezone, defaulting to local timezone. %s\n", err)
return time.Unix(int64(timestamp), 0).Local().Format(layout)
}
return time.Unix(int64(timestamp), 0).In(loc).Format(layout)
}
// isSuccess is a helper function that executes a block iff the status
// is success, else it executes the else block.
func isSuccess(conditional bool, options *raymond.Options) string {
if !conditional {
return options.Inverse()
}
switch options.ParamStr(0) {
case "success":
return options.Fn()
default:
return options.Inverse()
}
}
// isFailure is a helper function that executes a block iff the status
// is a form of failure, else it executes the else block.
func isFailure(conditional bool, options *raymond.Options) string {
if !conditional {
return options.Inverse()
}
switch options.ParamStr(0) {
case "failure", "error", "killed":
return options.Fn()
default:
return options.Inverse()
}
}
// normalize takes a Go representation of the variable, marshals
// to json and then unmarshals to a map[string]interfacce{}. This
// is important because it let's us use the JSON variable names
// in our template
func normalize(in interface{}) map[string]interface{} {
data, _ := json.Marshal(in) // we own the types, so this should never fail
out := map[string]interface{}{}
json.Unmarshal(data, &out)
return out
}
// urlencode is a helper function that encode a block
// to url safe string.
func urlencode(options *raymond.Options) string {
return url.QueryEscape(options.Fn())
}

3
vendor/github.com/golang/protobuf/AUTHORS generated vendored
View File

@ -1,3 +0,0 @@
# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

3
vendor/github.com/golang/protobuf/CONTRIBUTORS generated vendored
View File

@ -1,3 +0,0 @@
# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

31
vendor/github.com/golang/protobuf/LICENSE generated vendored
View File

@ -1,31 +0,0 @@
Go support for Protocol Buffers - Google's data interchange format
Copyright 2010 The Go Authors. All rights reserved.
https://github.com/golang/protobuf
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

40
vendor/github.com/golang/protobuf/Make.protobuf generated vendored
View File

@ -1,40 +0,0 @@
# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Includable Makefile to add a rule for generating .pb.go files from .proto files
# (Google protocol buffer descriptions).
# Typical use if myproto.proto is a file in package mypackage in this directory:
#
# include $(GOROOT)/src/pkg/github.com/golang/protobuf/Make.protobuf
%.pb.go: %.proto
protoc --go_out=. $<

54
vendor/github.com/golang/protobuf/Makefile generated vendored
View File

@ -1,54 +0,0 @@
# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
all: install
install:
go install ./proto ./jsonpb ./ptypes
go install ./protoc-gen-go
test:
go test ./proto ./jsonpb ./ptypes
make -C protoc-gen-go/testdata test
clean:
go clean ./...
nuke:
go clean -i ./...
regenerate:
make -C protoc-gen-go/descriptor regenerate
make -C protoc-gen-go/plugin regenerate
make -C protoc-gen-go/testdata regenerate
make -C proto/testdata regenerate
make -C jsonpb/jsonpb_test_proto regenerate

199
vendor/github.com/golang/protobuf/README.md generated vendored
View File

@ -1,199 +0,0 @@
# Go support for Protocol Buffers
Google's data interchange format.
Copyright 2010 The Go Authors.
https://github.com/golang/protobuf
This package and the code it generates requires at least Go 1.4.
This software implements Go bindings for protocol buffers. For
information about protocol buffers themselves, see
https://developers.google.com/protocol-buffers/
## Installation ##
To use this software, you must:
- Install the standard C++ implementation of protocol buffers from
https://developers.google.com/protocol-buffers/
- Of course, install the Go compiler and tools from
https://golang.org/
See
https://golang.org/doc/install
for details or, if you are using gccgo, follow the instructions at
https://golang.org/doc/install/gccgo
- Grab the code from the repository and install the proto package.
The simplest way is to run `go get -u github.com/golang/protobuf/{proto,protoc-gen-go}`.
The compiler plugin, protoc-gen-go, will be installed in $GOBIN,
defaulting to $GOPATH/bin. It must be in your $PATH for the protocol
compiler, protoc, to find it.
This software has two parts: a 'protocol compiler plugin' that
generates Go source files that, once compiled, can access and manage
protocol buffers; and a library that implements run-time support for
encoding (marshaling), decoding (unmarshaling), and accessing protocol
buffers.
There is support for gRPC in Go using protocol buffers.
See the note at the bottom of this file for details.
There are no insertion points in the plugin.
## Using protocol buffers with Go ##
Once the software is installed, there are two steps to using it.
First you must compile the protocol buffer definitions and then import
them, with the support library, into your program.
To compile the protocol buffer definition, run protoc with the --go_out
parameter set to the directory you want to output the Go code to.
protoc --go_out=. *.proto
The generated files will be suffixed .pb.go. See the Test code below
for an example using such a file.
The package comment for the proto library contains text describing
the interface provided in Go for protocol buffers. Here is an edited
version.
==========
The proto package converts data structures to and from the
wire format of protocol buffers. It works in concert with the
Go source code generated for .proto files by the protocol compiler.
A summary of the properties of the protocol buffer interface
for a protocol buffer variable v:
- Names are turned from camel_case to CamelCase for export.
- There are no methods on v to set fields; just treat
them as structure fields.
- There are getters that return a field's value if set,
and return the field's default value if unset.
The getters work even if the receiver is a nil message.
- The zero value for a struct is its correct initialization state.
All desired fields must be set before marshaling.
- A Reset() method will restore a protobuf struct to its zero state.
- Non-repeated fields are pointers to the values; nil means unset.
That is, optional or required field int32 f becomes F *int32.
- Repeated fields are slices.
- Helper functions are available to aid the setting of fields.
Helpers for getting values are superseded by the
GetFoo methods and their use is deprecated.
msg.Foo = proto.String("hello") // set field
- Constants are defined to hold the default values of all fields that
have them. They have the form Default_StructName_FieldName.
Because the getter methods handle defaulted values,
direct use of these constants should be rare.
- Enums are given type names and maps from names to values.
Enum values are prefixed with the enum's type name. Enum types have
a String method, and a Enum method to assist in message construction.
- Nested groups and enums have type names prefixed with the name of
the surrounding message type.
- Extensions are given descriptor names that start with E_,
followed by an underscore-delimited list of the nested messages
that contain it (if any) followed by the CamelCased name of the
extension field itself. HasExtension, ClearExtension, GetExtension
and SetExtension are functions for manipulating extensions.
- Oneof field sets are given a single field in their message,
with distinguished wrapper types for each possible field value.
- Marshal and Unmarshal are functions to encode and decode the wire format.
When the .proto file specifies `syntax="proto3"`, there are some differences:
- Non-repeated fields of non-message type are values instead of pointers.
- Getters are only generated for message and oneof fields.
- Enum types do not get an Enum method.
Consider file test.proto, containing
```proto
package example;
enum FOO { X = 17; };
message Test {
required string label = 1;
optional int32 type = 2 [default=77];
repeated int64 reps = 3;
optional group OptionalGroup = 4 {
required string RequiredField = 5;
}
}
```
To create and play with a Test object from the example package,
```go
package main
import (
"log"
"github.com/golang/protobuf/proto"
"path/to/example"
)
func main() {
test := &example.Test {
Label: proto.String("hello"),
Type: proto.Int32(17),
Reps: []int64{1, 2, 3},
Optionalgroup: &example.Test_OptionalGroup {
RequiredField: proto.String("good bye"),
},
}
data, err := proto.Marshal(test)
if err != nil {
log.Fatal("marshaling error: ", err)
}
newTest := &example.Test{}
err = proto.Unmarshal(data, newTest)
if err != nil {
log.Fatal("unmarshaling error: ", err)
}
// Now test and newTest contain the same data.
if test.GetLabel() != newTest.GetLabel() {
log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel())
}
// etc.
}
```
## Parameters ##
To pass extra parameters to the plugin, use a comma-separated
parameter list separated from the output directory by a colon:
protoc --go_out=plugins=grpc,import_path=mypackage:. *.proto
- `import_prefix=xxx` - a prefix that is added onto the beginning of
all imports. Useful for things like generating protos in a
subdirectory, or regenerating vendored protobufs in-place.
- `import_path=foo/bar` - used as the package if no input files
declare `go_package`. If it contains slashes, everything up to the
rightmost slash is ignored.
- `plugins=plugin1+plugin2` - specifies the list of sub-plugins to
load. The only plugin in this repo is `grpc`.
- `Mfoo/bar.proto=quux/shme` - declares that foo/bar.proto is
associated with Go package quux/shme. This is subject to the
import_prefix parameter.
## gRPC Support ##
If a proto file specifies RPC services, protoc-gen-go can be instructed to
generate code compatible with gRPC (http://www.grpc.io/). To do this, pass
the `plugins` parameter to protoc-gen-go; the usual way is to insert it into
the --go_out argument to protoc:
protoc --go_out=plugins=grpc:. *.proto
## Plugins ##
The `protoc-gen-go/generator` package exposes a plugin interface,
which is used by the gRPC code generation. This interface is not
supported and is subject to incompatible changes without notice.

43
vendor/github.com/golang/protobuf/proto/Makefile generated vendored
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@ -1,43 +0,0 @@
# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
install:
go install
test: install generate-test-pbs
go test
generate-test-pbs:
make install
make -C testdata
protoc --go_out=Mtestdata/test.proto=github.com/golang/protobuf/proto/testdata,Mgoogle/protobuf/any.proto=github.com/golang/protobuf/ptypes/any:. proto3_proto/proto3.proto
make

229
vendor/github.com/golang/protobuf/proto/clone.go generated vendored
View File

@ -1,229 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Protocol buffer deep copy and merge.
// TODO: RawMessage.
package proto
import (
"log"
"reflect"
"strings"
)
// Clone returns a deep copy of a protocol buffer.
func Clone(pb Message) Message {
in := reflect.ValueOf(pb)
if in.IsNil() {
return pb
}
out := reflect.New(in.Type().Elem())
// out is empty so a merge is a deep copy.
mergeStruct(out.Elem(), in.Elem())
return out.Interface().(Message)
}
// Merge merges src into dst.
// Required and optional fields that are set in src will be set to that value in dst.
// Elements of repeated fields will be appended.
// Merge panics if src and dst are not the same type, or if dst is nil.
func Merge(dst, src Message) {
in := reflect.ValueOf(src)
out := reflect.ValueOf(dst)
if out.IsNil() {
panic("proto: nil destination")
}
if in.Type() != out.Type() {
// Explicit test prior to mergeStruct so that mistyped nils will fail
panic("proto: type mismatch")
}
if in.IsNil() {
// Merging nil into non-nil is a quiet no-op
return
}
mergeStruct(out.Elem(), in.Elem())
}
func mergeStruct(out, in reflect.Value) {
sprop := GetProperties(in.Type())
for i := 0; i < in.NumField(); i++ {
f := in.Type().Field(i)
if strings.HasPrefix(f.Name, "XXX_") {
continue
}
mergeAny(out.Field(i), in.Field(i), false, sprop.Prop[i])
}
if emIn, ok := extendable(in.Addr().Interface()); ok {
emOut, _ := extendable(out.Addr().Interface())
mIn, muIn := emIn.extensionsRead()
if mIn != nil {
mOut := emOut.extensionsWrite()
muIn.Lock()
mergeExtension(mOut, mIn)
muIn.Unlock()
}
}
uf := in.FieldByName("XXX_unrecognized")
if !uf.IsValid() {
return
}
uin := uf.Bytes()
if len(uin) > 0 {
out.FieldByName("XXX_unrecognized").SetBytes(append([]byte(nil), uin...))
}
}
// mergeAny performs a merge between two values of the same type.
// viaPtr indicates whether the values were indirected through a pointer (implying proto2).
// prop is set if this is a struct field (it may be nil).
func mergeAny(out, in reflect.Value, viaPtr bool, prop *Properties) {
if in.Type() == protoMessageType {
if !in.IsNil() {
if out.IsNil() {
out.Set(reflect.ValueOf(Clone(in.Interface().(Message))))
} else {
Merge(out.Interface().(Message), in.Interface().(Message))
}
}
return
}
switch in.Kind() {
case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
reflect.String, reflect.Uint32, reflect.Uint64:
if !viaPtr && isProto3Zero(in) {
return
}
out.Set(in)
case reflect.Interface:
// Probably a oneof field; copy non-nil values.
if in.IsNil() {
return
}
// Allocate destination if it is not set, or set to a different type.
// Otherwise we will merge as normal.
if out.IsNil() || out.Elem().Type() != in.Elem().Type() {
out.Set(reflect.New(in.Elem().Elem().Type())) // interface -> *T -> T -> new(T)
}
mergeAny(out.Elem(), in.Elem(), false, nil)
case reflect.Map:
if in.Len() == 0 {
return
}
if out.IsNil() {
out.Set(reflect.MakeMap(in.Type()))
}
// For maps with value types of *T or []byte we need to deep copy each value.
elemKind := in.Type().Elem().Kind()
for _, key := range in.MapKeys() {
var val reflect.Value
switch elemKind {
case reflect.Ptr:
val = reflect.New(in.Type().Elem().Elem())
mergeAny(val, in.MapIndex(key), false, nil)
case reflect.Slice:
val = in.MapIndex(key)
val = reflect.ValueOf(append([]byte{}, val.Bytes()...))
default:
val = in.MapIndex(key)
}
out.SetMapIndex(key, val)
}
case reflect.Ptr:
if in.IsNil() {
return
}
if out.IsNil() {
out.Set(reflect.New(in.Elem().Type()))
}
mergeAny(out.Elem(), in.Elem(), true, nil)
case reflect.Slice:
if in.IsNil() {
return
}
if in.Type().Elem().Kind() == reflect.Uint8 {
// []byte is a scalar bytes field, not a repeated field.
// Edge case: if this is in a proto3 message, a zero length
// bytes field is considered the zero value, and should not
// be merged.
if prop != nil && prop.proto3 && in.Len() == 0 {
return
}
// Make a deep copy.
// Append to []byte{} instead of []byte(nil) so that we never end up
// with a nil result.
out.SetBytes(append([]byte{}, in.Bytes()...))
return
}
n := in.Len()
if out.IsNil() {
out.Set(reflect.MakeSlice(in.Type(), 0, n))
}
switch in.Type().Elem().Kind() {
case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
reflect.String, reflect.Uint32, reflect.Uint64:
out.Set(reflect.AppendSlice(out, in))
default:
for i := 0; i < n; i++ {
x := reflect.Indirect(reflect.New(in.Type().Elem()))
mergeAny(x, in.Index(i), false, nil)
out.Set(reflect.Append(out, x))
}
}
case reflect.Struct:
mergeStruct(out, in)
default:
// unknown type, so not a protocol buffer
log.Printf("proto: don't know how to copy %v", in)
}
}
func mergeExtension(out, in map[int32]Extension) {
for extNum, eIn := range in {
eOut := Extension{desc: eIn.desc}
if eIn.value != nil {
v := reflect.New(reflect.TypeOf(eIn.value)).Elem()
mergeAny(v, reflect.ValueOf(eIn.value), false, nil)
eOut.value = v.Interface()
}
if eIn.enc != nil {
eOut.enc = make([]byte, len(eIn.enc))
copy(eOut.enc, eIn.enc)
}
out[extNum] = eOut
}
}

869
vendor/github.com/golang/protobuf/proto/decode.go generated vendored
View File

@ -1,869 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Routines for decoding protocol buffer data to construct in-memory representations.
*/
import (
"errors"
"fmt"
"io"
"os"
"reflect"
)
// errOverflow is returned when an integer is too large to be represented.
var errOverflow = errors.New("proto: integer overflow")
// ErrInternalBadWireType is returned by generated code when an incorrect
// wire type is encountered. It does not get returned to user code.
var ErrInternalBadWireType = errors.New("proto: internal error: bad wiretype for oneof")
// The fundamental decoders that interpret bytes on the wire.
// Those that take integer types all return uint64 and are
// therefore of type valueDecoder.
// DecodeVarint reads a varint-encoded integer from the slice.
// It returns the integer and the number of bytes consumed, or
// zero if there is not enough.
// This is the format for the
// int32, int64, uint32, uint64, bool, and enum
// protocol buffer types.
func DecodeVarint(buf []byte) (x uint64, n int) {
// x, n already 0
for shift := uint(0); shift < 64; shift += 7 {
if n >= len(buf) {
return 0, 0
}
b := uint64(buf[n])
n++
x |= (b & 0x7F) << shift
if (b & 0x80) == 0 {
return x, n
}
}
// The number is too large to represent in a 64-bit value.
return 0, 0
}
// DecodeVarint reads a varint-encoded integer from the Buffer.
// This is the format for the
// int32, int64, uint32, uint64, bool, and enum
// protocol buffer types.
func (p *Buffer) DecodeVarint() (x uint64, err error) {
// x, err already 0
i := p.index
l := len(p.buf)
for shift := uint(0); shift < 64; shift += 7 {
if i >= l {
err = io.ErrUnexpectedEOF
return
}
b := p.buf[i]
i++
x |= (uint64(b) & 0x7F) << shift
if b < 0x80 {
p.index = i
return
}
}
// The number is too large to represent in a 64-bit value.
err = errOverflow
return
}
// DecodeFixed64 reads a 64-bit integer from the Buffer.
// This is the format for the
// fixed64, sfixed64, and double protocol buffer types.
func (p *Buffer) DecodeFixed64() (x uint64, err error) {
// x, err already 0
i := p.index + 8
if i < 0 || i > len(p.buf) {
err = io.ErrUnexpectedEOF
return
}
p.index = i
x = uint64(p.buf[i-8])
x |= uint64(p.buf[i-7]) << 8
x |= uint64(p.buf[i-6]) << 16
x |= uint64(p.buf[i-5]) << 24
x |= uint64(p.buf[i-4]) << 32
x |= uint64(p.buf[i-3]) << 40
x |= uint64(p.buf[i-2]) << 48
x |= uint64(p.buf[i-1]) << 56
return
}
// DecodeFixed32 reads a 32-bit integer from the Buffer.
// This is the format for the
// fixed32, sfixed32, and float protocol buffer types.
func (p *Buffer) DecodeFixed32() (x uint64, err error) {
// x, err already 0
i := p.index + 4
if i < 0 || i > len(p.buf) {
err = io.ErrUnexpectedEOF
return
}
p.index = i
x = uint64(p.buf[i-4])
x |= uint64(p.buf[i-3]) << 8
x |= uint64(p.buf[i-2]) << 16
x |= uint64(p.buf[i-1]) << 24
return
}
// DecodeZigzag64 reads a zigzag-encoded 64-bit integer
// from the Buffer.
// This is the format used for the sint64 protocol buffer type.
func (p *Buffer) DecodeZigzag64() (x uint64, err error) {
x, err = p.DecodeVarint()
if err != nil {
return
}
x = (x >> 1) ^ uint64((int64(x&1)<<63)>>63)
return
}
// DecodeZigzag32 reads a zigzag-encoded 32-bit integer
// from the Buffer.
// This is the format used for the sint32 protocol buffer type.
func (p *Buffer) DecodeZigzag32() (x uint64, err error) {
x, err = p.DecodeVarint()
if err != nil {
return
}
x = uint64((uint32(x) >> 1) ^ uint32((int32(x&1)<<31)>>31))
return
}
// These are not ValueDecoders: they produce an array of bytes or a string.
// bytes, embedded messages
// DecodeRawBytes reads a count-delimited byte buffer from the Buffer.
// This is the format used for the bytes protocol buffer
// type and for embedded messages.
func (p *Buffer) DecodeRawBytes(alloc bool) (buf []byte, err error) {
n, err := p.DecodeVarint()
if err != nil {
return nil, err
}
nb := int(n)
if nb < 0 {
return nil, fmt.Errorf("proto: bad byte length %d", nb)
}
end := p.index + nb
if end < p.index || end > len(p.buf) {
return nil, io.ErrUnexpectedEOF
}
if !alloc {
// todo: check if can get more uses of alloc=false
buf = p.buf[p.index:end]
p.index += nb
return
}
buf = make([]byte, nb)
copy(buf, p.buf[p.index:])
p.index += nb
return
}
// DecodeStringBytes reads an encoded string from the Buffer.
// This is the format used for the proto2 string type.
func (p *Buffer) DecodeStringBytes() (s string, err error) {
buf, err := p.DecodeRawBytes(false)
if err != nil {
return
}
return string(buf), nil
}
// Skip the next item in the buffer. Its wire type is decoded and presented as an argument.
// If the protocol buffer has extensions, and the field matches, add it as an extension.
// Otherwise, if the XXX_unrecognized field exists, append the skipped data there.
func (o *Buffer) skipAndSave(t reflect.Type, tag, wire int, base structPointer, unrecField field) error {
oi := o.index
err := o.skip(t, tag, wire)
if err != nil {
return err
}
if !unrecField.IsValid() {
return nil
}
ptr := structPointer_Bytes(base, unrecField)
// Add the skipped field to struct field
obuf := o.buf
o.buf = *ptr
o.EncodeVarint(uint64(tag<<3 | wire))
*ptr = append(o.buf, obuf[oi:o.index]...)
o.buf = obuf
return nil
}
// Skip the next item in the buffer. Its wire type is decoded and presented as an argument.
func (o *Buffer) skip(t reflect.Type, tag, wire int) error {
var u uint64
var err error
switch wire {
case WireVarint:
_, err = o.DecodeVarint()
case WireFixed64:
_, err = o.DecodeFixed64()
case WireBytes:
_, err = o.DecodeRawBytes(false)
case WireFixed32:
_, err = o.DecodeFixed32()
case WireStartGroup:
for {
u, err = o.DecodeVarint()
if err != nil {
break
}
fwire := int(u & 0x7)
if fwire == WireEndGroup {
break
}
ftag := int(u >> 3)
err = o.skip(t, ftag, fwire)
if err != nil {
break
}
}
default:
err = fmt.Errorf("proto: can't skip unknown wire type %d for %s", wire, t)
}
return err
}
// Unmarshaler is the interface representing objects that can
// unmarshal themselves. The method should reset the receiver before
// decoding starts. The argument points to data that may be
// overwritten, so implementations should not keep references to the
// buffer.
type Unmarshaler interface {
Unmarshal([]byte) error
}
// Unmarshal parses the protocol buffer representation in buf and places the
// decoded result in pb. If the struct underlying pb does not match
// the data in buf, the results can be unpredictable.
//
// Unmarshal resets pb before starting to unmarshal, so any
// existing data in pb is always removed. Use UnmarshalMerge
// to preserve and append to existing data.
func Unmarshal(buf []byte, pb Message) error {
pb.Reset()
return UnmarshalMerge(buf, pb)
}
// UnmarshalMerge parses the protocol buffer representation in buf and
// writes the decoded result to pb. If the struct underlying pb does not match
// the data in buf, the results can be unpredictable.
//
// UnmarshalMerge merges into existing data in pb.
// Most code should use Unmarshal instead.
func UnmarshalMerge(buf []byte, pb Message) error {
// If the object can unmarshal itself, let it.
if u, ok := pb.(Unmarshaler); ok {
return u.Unmarshal(buf)
}
return NewBuffer(buf).Unmarshal(pb)
}
// DecodeMessage reads a count-delimited message from the Buffer.
func (p *Buffer) DecodeMessage(pb Message) error {
enc, err := p.DecodeRawBytes(false)
if err != nil {
return err
}
return NewBuffer(enc).Unmarshal(pb)
}
// DecodeGroup reads a tag-delimited group from the Buffer.
func (p *Buffer) DecodeGroup(pb Message) error {
typ, base, err := getbase(pb)
if err != nil {
return err
}
return p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), true, base)
}
// Unmarshal parses the protocol buffer representation in the
// Buffer and places the decoded result in pb. If the struct
// underlying pb does not match the data in the buffer, the results can be
// unpredictable.
func (p *Buffer) Unmarshal(pb Message) error {
// If the object can unmarshal itself, let it.
if u, ok := pb.(Unmarshaler); ok {
err := u.Unmarshal(p.buf[p.index:])
p.index = len(p.buf)
return err
}
typ, base, err := getbase(pb)
if err != nil {
return err
}
err = p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), false, base)
if collectStats {
stats.Decode++
}
return err
}
// unmarshalType does the work of unmarshaling a structure.
func (o *Buffer) unmarshalType(st reflect.Type, prop *StructProperties, is_group bool, base structPointer) error {
var state errorState
required, reqFields := prop.reqCount, uint64(0)
var err error
for err == nil && o.index < len(o.buf) {
oi := o.index
var u uint64
u, err = o.DecodeVarint()
if err != nil {
break
}
wire := int(u & 0x7)
if wire == WireEndGroup {
if is_group {
return nil // input is satisfied
}
return fmt.Errorf("proto: %s: wiretype end group for non-group", st)
}
tag := int(u >> 3)
if tag <= 0 {
return fmt.Errorf("proto: %s: illegal tag %d (wire type %d)", st, tag, wire)
}
fieldnum, ok := prop.decoderTags.get(tag)
if !ok {
// Maybe it's an extension?
if prop.extendable {
if e, _ := extendable(structPointer_Interface(base, st)); isExtensionField(e, int32(tag)) {
if err = o.skip(st, tag, wire); err == nil {
extmap := e.extensionsWrite()
ext := extmap[int32(tag)] // may be missing
ext.enc = append(ext.enc, o.buf[oi:o.index]...)
extmap[int32(tag)] = ext
}
continue
}
}
// Maybe it's a oneof?
if prop.oneofUnmarshaler != nil {
m := structPointer_Interface(base, st).(Message)
// First return value indicates whether tag is a oneof field.
ok, err = prop.oneofUnmarshaler(m, tag, wire, o)
if err == ErrInternalBadWireType {
// Map the error to something more descriptive.
// Do the formatting here to save generated code space.
err = fmt.Errorf("bad wiretype for oneof field in %T", m)
}
if ok {
continue
}
}
err = o.skipAndSave(st, tag, wire, base, prop.unrecField)
continue
}
p := prop.Prop[fieldnum]
if p.dec == nil {
fmt.Fprintf(os.Stderr, "proto: no protobuf decoder for %s.%s\n", st, st.Field(fieldnum).Name)
continue
}
dec := p.dec
if wire != WireStartGroup && wire != p.WireType {
if wire == WireBytes && p.packedDec != nil {
// a packable field
dec = p.packedDec
} else {
err = fmt.Errorf("proto: bad wiretype for field %s.%s: got wiretype %d, want %d", st, st.Field(fieldnum).Name, wire, p.WireType)
continue
}
}
decErr := dec(o, p, base)
if decErr != nil && !state.shouldContinue(decErr, p) {
err = decErr
}
if err == nil && p.Required {
// Successfully decoded a required field.
if tag <= 64 {
// use bitmap for fields 1-64 to catch field reuse.
var mask uint64 = 1 << uint64(tag-1)
if reqFields&mask == 0 {
// new required field
reqFields |= mask
required--
}
} else {
// This is imprecise. It can be fooled by a required field
// with a tag > 64 that is encoded twice; that's very rare.
// A fully correct implementation would require allocating
// a data structure, which we would like to avoid.
required--
}
}
}
if err == nil {
if is_group {
return io.ErrUnexpectedEOF
}
if state.err != nil {
return state.err
}
if required > 0 {
// Not enough information to determine the exact field. If we use extra
// CPU, we could determine the field only if the missing required field
// has a tag <= 64 and we check reqFields.
return &RequiredNotSetError{"{Unknown}"}
}
}
return err
}
// Individual type decoders
// For each,
// u is the decoded value,
// v is a pointer to the field (pointer) in the struct
// Sizes of the pools to allocate inside the Buffer.
// The goal is modest amortization and allocation
// on at least 16-byte boundaries.
const (
boolPoolSize = 16
uint32PoolSize = 8
uint64PoolSize = 4
)
// Decode a bool.
func (o *Buffer) dec_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
if len(o.bools) == 0 {
o.bools = make([]bool, boolPoolSize)
}
o.bools[0] = u != 0
*structPointer_Bool(base, p.field) = &o.bools[0]
o.bools = o.bools[1:]
return nil
}
func (o *Buffer) dec_proto3_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
*structPointer_BoolVal(base, p.field) = u != 0
return nil
}
// Decode an int32.
func (o *Buffer) dec_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word32_Set(structPointer_Word32(base, p.field), o, uint32(u))
return nil
}
func (o *Buffer) dec_proto3_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word32Val_Set(structPointer_Word32Val(base, p.field), uint32(u))
return nil
}
// Decode an int64.
func (o *Buffer) dec_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word64_Set(structPointer_Word64(base, p.field), o, u)
return nil
}
func (o *Buffer) dec_proto3_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word64Val_Set(structPointer_Word64Val(base, p.field), o, u)
return nil
}
// Decode a string.
func (o *Buffer) dec_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
*structPointer_String(base, p.field) = &s
return nil
}
func (o *Buffer) dec_proto3_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
*structPointer_StringVal(base, p.field) = s
return nil
}
// Decode a slice of bytes ([]byte).
func (o *Buffer) dec_slice_byte(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
*structPointer_Bytes(base, p.field) = b
return nil
}
// Decode a slice of bools ([]bool).
func (o *Buffer) dec_slice_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
v := structPointer_BoolSlice(base, p.field)
*v = append(*v, u != 0)
return nil
}
// Decode a slice of bools ([]bool) in packed format.
func (o *Buffer) dec_slice_packed_bool(p *Properties, base structPointer) error {
v := structPointer_BoolSlice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded bools
fin := o.index + nb
if fin < o.index {
return errOverflow
}
y := *v
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
y = append(y, u != 0)
}
*v = y
return nil
}
// Decode a slice of int32s ([]int32).
func (o *Buffer) dec_slice_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
structPointer_Word32Slice(base, p.field).Append(uint32(u))
return nil
}
// Decode a slice of int32s ([]int32) in packed format.
func (o *Buffer) dec_slice_packed_int32(p *Properties, base structPointer) error {
v := structPointer_Word32Slice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded int32s
fin := o.index + nb
if fin < o.index {
return errOverflow
}
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
v.Append(uint32(u))
}
return nil
}
// Decode a slice of int64s ([]int64).
func (o *Buffer) dec_slice_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
structPointer_Word64Slice(base, p.field).Append(u)
return nil
}
// Decode a slice of int64s ([]int64) in packed format.
func (o *Buffer) dec_slice_packed_int64(p *Properties, base structPointer) error {
v := structPointer_Word64Slice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded int64s
fin := o.index + nb
if fin < o.index {
return errOverflow
}
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
v.Append(u)
}
return nil
}
// Decode a slice of strings ([]string).
func (o *Buffer) dec_slice_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
v := structPointer_StringSlice(base, p.field)
*v = append(*v, s)
return nil
}
// Decode a slice of slice of bytes ([][]byte).
func (o *Buffer) dec_slice_slice_byte(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
v := structPointer_BytesSlice(base, p.field)
*v = append(*v, b)
return nil
}
// Decode a map field.
func (o *Buffer) dec_new_map(p *Properties, base structPointer) error {
raw, err := o.DecodeRawBytes(false)
if err != nil {
return err
}
oi := o.index // index at the end of this map entry
o.index -= len(raw) // move buffer back to start of map entry
mptr := structPointer_NewAt(base, p.field, p.mtype) // *map[K]V
if mptr.Elem().IsNil() {
mptr.Elem().Set(reflect.MakeMap(mptr.Type().Elem()))
}
v := mptr.Elem() // map[K]V
// Prepare addressable doubly-indirect placeholders for the key and value types.
// See enc_new_map for why.
keyptr := reflect.New(reflect.PtrTo(p.mtype.Key())).Elem() // addressable *K
keybase := toStructPointer(keyptr.Addr()) // **K
var valbase structPointer
var valptr reflect.Value
switch p.mtype.Elem().Kind() {
case reflect.Slice:
// []byte
var dummy []byte
valptr = reflect.ValueOf(&dummy) // *[]byte
valbase = toStructPointer(valptr) // *[]byte
case reflect.Ptr:
// message; valptr is **Msg; need to allocate the intermediate pointer
valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V
valptr.Set(reflect.New(valptr.Type().Elem()))
valbase = toStructPointer(valptr)
default:
// everything else
valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V
valbase = toStructPointer(valptr.Addr()) // **V
}
// Decode.
// This parses a restricted wire format, namely the encoding of a message
// with two fields. See enc_new_map for the format.
for o.index < oi {
// tagcode for key and value properties are always a single byte
// because they have tags 1 and 2.
tagcode := o.buf[o.index]
o.index++
switch tagcode {
case p.mkeyprop.tagcode[0]:
if err := p.mkeyprop.dec(o, p.mkeyprop, keybase); err != nil {
return err
}
case p.mvalprop.tagcode[0]:
if err := p.mvalprop.dec(o, p.mvalprop, valbase); err != nil {
return err
}
default:
// TODO: Should we silently skip this instead?
return fmt.Errorf("proto: bad map data tag %d", raw[0])
}
}
keyelem, valelem := keyptr.Elem(), valptr.Elem()
if !keyelem.IsValid() {
keyelem = reflect.Zero(p.mtype.Key())
}
if !valelem.IsValid() {
valelem = reflect.Zero(p.mtype.Elem())
}
v.SetMapIndex(keyelem, valelem)
return nil
}
// Decode a group.
func (o *Buffer) dec_struct_group(p *Properties, base structPointer) error {
bas := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(bas) {
// allocate new nested message
bas = toStructPointer(reflect.New(p.stype))
structPointer_SetStructPointer(base, p.field, bas)
}
return o.unmarshalType(p.stype, p.sprop, true, bas)
}
// Decode an embedded message.
func (o *Buffer) dec_struct_message(p *Properties, base structPointer) (err error) {
raw, e := o.DecodeRawBytes(false)
if e != nil {
return e
}
bas := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(bas) {
// allocate new nested message
bas = toStructPointer(reflect.New(p.stype))
structPointer_SetStructPointer(base, p.field, bas)
}
// If the object can unmarshal itself, let it.
if p.isUnmarshaler {
iv := structPointer_Interface(bas, p.stype)
return iv.(Unmarshaler).Unmarshal(raw)
}
obuf := o.buf
oi := o.index
o.buf = raw
o.index = 0
err = o.unmarshalType(p.stype, p.sprop, false, bas)
o.buf = obuf
o.index = oi
return err
}
// Decode a slice of embedded messages.
func (o *Buffer) dec_slice_struct_message(p *Properties, base structPointer) error {
return o.dec_slice_struct(p, false, base)
}
// Decode a slice of embedded groups.
func (o *Buffer) dec_slice_struct_group(p *Properties, base structPointer) error {
return o.dec_slice_struct(p, true, base)
}
// Decode a slice of structs ([]*struct).
func (o *Buffer) dec_slice_struct(p *Properties, is_group bool, base structPointer) error {
v := reflect.New(p.stype)
bas := toStructPointer(v)
structPointer_StructPointerSlice(base, p.field).Append(bas)
if is_group {
err := o.unmarshalType(p.stype, p.sprop, is_group, bas)
return err
}
raw, err := o.DecodeRawBytes(false)
if err != nil {
return err
}
// If the object can unmarshal itself, let it.
if p.isUnmarshaler {
iv := v.Interface()
return iv.(Unmarshaler).Unmarshal(raw)
}
obuf := o.buf
oi := o.index
o.buf = raw
o.index = 0
err = o.unmarshalType(p.stype, p.sprop, is_group, bas)
o.buf = obuf
o.index = oi
return err
}

1363
vendor/github.com/golang/protobuf/proto/encode.go generated vendored
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296
vendor/github.com/golang/protobuf/proto/equal.go generated vendored
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@ -1,296 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Protocol buffer comparison.
package proto
import (
"bytes"
"log"
"reflect"
"strings"
)
/*
Equal returns true iff protocol buffers a and b are equal.
The arguments must both be pointers to protocol buffer structs.
Equality is defined in this way:
- Two messages are equal iff they are the same type,
corresponding fields are equal, unknown field sets
are equal, and extensions sets are equal.
- Two set scalar fields are equal iff their values are equal.
If the fields are of a floating-point type, remember that
NaN != x for all x, including NaN. If the message is defined
in a proto3 .proto file, fields are not "set"; specifically,
zero length proto3 "bytes" fields are equal (nil == {}).
- Two repeated fields are equal iff their lengths are the same,
and their corresponding elements are equal (a "bytes" field,
although represented by []byte, is not a repeated field)
- Two unset fields are equal.
- Two unknown field sets are equal if their current
encoded state is equal.
- Two extension sets are equal iff they have corresponding
elements that are pairwise equal.
- Every other combination of things are not equal.
The return value is undefined if a and b are not protocol buffers.
*/
func Equal(a, b Message) bool {
if a == nil || b == nil {
return a == b
}
v1, v2 := reflect.ValueOf(a), reflect.ValueOf(b)
if v1.Type() != v2.Type() {
return false
}
if v1.Kind() == reflect.Ptr {
if v1.IsNil() {
return v2.IsNil()
}
if v2.IsNil() {
return false
}
v1, v2 = v1.Elem(), v2.Elem()
}
if v1.Kind() != reflect.Struct {
return false
}
return equalStruct(v1, v2)
}
// v1 and v2 are known to have the same type.
func equalStruct(v1, v2 reflect.Value) bool {
sprop := GetProperties(v1.Type())
for i := 0; i < v1.NumField(); i++ {
f := v1.Type().Field(i)
if strings.HasPrefix(f.Name, "XXX_") {
continue
}
f1, f2 := v1.Field(i), v2.Field(i)
if f.Type.Kind() == reflect.Ptr {
if n1, n2 := f1.IsNil(), f2.IsNil(); n1 && n2 {
// both unset
continue
} else if n1 != n2 {
// set/unset mismatch
return false
}
b1, ok := f1.Interface().(raw)
if ok {
b2 := f2.Interface().(raw)
// RawMessage
if !bytes.Equal(b1.Bytes(), b2.Bytes()) {
return false
}
continue
}
f1, f2 = f1.Elem(), f2.Elem()
}
if !equalAny(f1, f2, sprop.Prop[i]) {
return false
}
}
if em1 := v1.FieldByName("XXX_InternalExtensions"); em1.IsValid() {
em2 := v2.FieldByName("XXX_InternalExtensions")
if !equalExtensions(v1.Type(), em1.Interface().(XXX_InternalExtensions), em2.Interface().(XXX_InternalExtensions)) {
return false
}
}
if em1 := v1.FieldByName("XXX_extensions"); em1.IsValid() {
em2 := v2.FieldByName("XXX_extensions")
if !equalExtMap(v1.Type(), em1.Interface().(map[int32]Extension), em2.Interface().(map[int32]Extension)) {
return false
}
}
uf := v1.FieldByName("XXX_unrecognized")
if !uf.IsValid() {
return true
}
u1 := uf.Bytes()
u2 := v2.FieldByName("XXX_unrecognized").Bytes()
if !bytes.Equal(u1, u2) {
return false
}
return true
}
// v1 and v2 are known to have the same type.
// prop may be nil.
func equalAny(v1, v2 reflect.Value, prop *Properties) bool {
if v1.Type() == protoMessageType {
m1, _ := v1.Interface().(Message)
m2, _ := v2.Interface().(Message)
return Equal(m1, m2)
}
switch v1.Kind() {
case reflect.Bool:
return v1.Bool() == v2.Bool()
case reflect.Float32, reflect.Float64:
return v1.Float() == v2.Float()
case reflect.Int32, reflect.Int64:
return v1.Int() == v2.Int()
case reflect.Interface:
// Probably a oneof field; compare the inner values.
n1, n2 := v1.IsNil(), v2.IsNil()
if n1 || n2 {
return n1 == n2
}
e1, e2 := v1.Elem(), v2.Elem()
if e1.Type() != e2.Type() {
return false
}
return equalAny(e1, e2, nil)
case reflect.Map:
if v1.Len() != v2.Len() {
return false
}
for _, key := range v1.MapKeys() {
val2 := v2.MapIndex(key)
if !val2.IsValid() {
// This key was not found in the second map.
return false
}
if !equalAny(v1.MapIndex(key), val2, nil) {
return false
}
}
return true
case reflect.Ptr:
// Maps may have nil values in them, so check for nil.
if v1.IsNil() && v2.IsNil() {
return true
}
if v1.IsNil() != v2.IsNil() {
return false
}
return equalAny(v1.Elem(), v2.Elem(), prop)
case reflect.Slice:
if v1.Type().Elem().Kind() == reflect.Uint8 {
// short circuit: []byte
// Edge case: if this is in a proto3 message, a zero length
// bytes field is considered the zero value.
if prop != nil && prop.proto3 && v1.Len() == 0 && v2.Len() == 0 {
return true
}
if v1.IsNil() != v2.IsNil() {
return false
}
return bytes.Equal(v1.Interface().([]byte), v2.Interface().([]byte))
}
if v1.Len() != v2.Len() {
return false
}
for i := 0; i < v1.Len(); i++ {
if !equalAny(v1.Index(i), v2.Index(i), prop) {
return false
}
}
return true
case reflect.String:
return v1.Interface().(string) == v2.Interface().(string)
case reflect.Struct:
return equalStruct(v1, v2)
case reflect.Uint32, reflect.Uint64:
return v1.Uint() == v2.Uint()
}
// unknown type, so not a protocol buffer
log.Printf("proto: don't know how to compare %v", v1)
return false
}
// base is the struct type that the extensions are based on.
// x1 and x2 are InternalExtensions.
func equalExtensions(base reflect.Type, x1, x2 XXX_InternalExtensions) bool {
em1, _ := x1.extensionsRead()
em2, _ := x2.extensionsRead()
return equalExtMap(base, em1, em2)
}
func equalExtMap(base reflect.Type, em1, em2 map[int32]Extension) bool {
if len(em1) != len(em2) {
return false
}
for extNum, e1 := range em1 {
e2, ok := em2[extNum]
if !ok {
return false
}
m1, m2 := e1.value, e2.value
if m1 != nil && m2 != nil {
// Both are unencoded.
if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) {
return false
}
continue
}
// At least one is encoded. To do a semantically correct comparison
// we need to unmarshal them first.
var desc *ExtensionDesc
if m := extensionMaps[base]; m != nil {
desc = m[extNum]
}
if desc == nil {
log.Printf("proto: don't know how to compare extension %d of %v", extNum, base)
continue
}
var err error
if m1 == nil {
m1, err = decodeExtension(e1.enc, desc)
}
if m2 == nil && err == nil {
m2, err = decodeExtension(e2.enc, desc)
}
if err != nil {
// The encoded form is invalid.
log.Printf("proto: badly encoded extension %d of %v: %v", extNum, base, err)
return false
}
if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) {
return false
}
}
return true
}

555
vendor/github.com/golang/protobuf/proto/extensions.go generated vendored
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@ -1,555 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Types and routines for supporting protocol buffer extensions.
*/
import (
"errors"
"fmt"
"reflect"
"strconv"
"sync"
)
// ErrMissingExtension is the error returned by GetExtension if the named extension is not in the message.
var ErrMissingExtension = errors.New("proto: missing extension")
// ExtensionRange represents a range of message extensions for a protocol buffer.
// Used in code generated by the protocol compiler.
type ExtensionRange struct {
Start, End int32 // both inclusive
}
// extendableProto is an interface implemented by any protocol buffer generated by the current
// proto compiler that may be extended.
type extendableProto interface {
Message
ExtensionRangeArray() []ExtensionRange
extensionsWrite() map[int32]Extension
extensionsRead() (map[int32]Extension, sync.Locker)
}
// extendableProtoV1 is an interface implemented by a protocol buffer generated by the previous
// version of the proto compiler that may be extended.
type extendableProtoV1 interface {
Message
ExtensionRangeArray() []ExtensionRange
ExtensionMap() map[int32]Extension
}
// extensionAdapter is a wrapper around extendableProtoV1 that implements extendableProto.
type extensionAdapter struct {
extendableProtoV1
}
func (e extensionAdapter) extensionsWrite() map[int32]Extension {
return e.ExtensionMap()
}
func (e extensionAdapter) extensionsRead() (map[int32]Extension, sync.Locker) {
return e.ExtensionMap(), notLocker{}
}
// notLocker is a sync.Locker whose Lock and Unlock methods are nops.
type notLocker struct{}
func (n notLocker) Lock() {}
func (n notLocker) Unlock() {}
// extendable returns the extendableProto interface for the given generated proto message.
// If the proto message has the old extension format, it returns a wrapper that implements
// the extendableProto interface.
func extendable(p interface{}) (extendableProto, bool) {
if ep, ok := p.(extendableProto); ok {
return ep, ok
}
if ep, ok := p.(extendableProtoV1); ok {
return extensionAdapter{ep}, ok
}
return nil, false
}
// XXX_InternalExtensions is an internal representation of proto extensions.
//
// Each generated message struct type embeds an anonymous XXX_InternalExtensions field,
// thus gaining the unexported 'extensions' method, which can be called only from the proto package.
//
// The methods of XXX_InternalExtensions are not concurrency safe in general,
// but calls to logically read-only methods such as has and get may be executed concurrently.
type XXX_InternalExtensions struct {
// The struct must be indirect so that if a user inadvertently copies a
// generated message and its embedded XXX_InternalExtensions, they
// avoid the mayhem of a copied mutex.
//
// The mutex serializes all logically read-only operations to p.extensionMap.
// It is up to the client to ensure that write operations to p.extensionMap are
// mutually exclusive with other accesses.
p *struct {
mu sync.Mutex
extensionMap map[int32]Extension
}
}
// extensionsWrite returns the extension map, creating it on first use.
func (e *XXX_InternalExtensions) extensionsWrite() map[int32]Extension {
if e.p == nil {
e.p = new(struct {
mu sync.Mutex
extensionMap map[int32]Extension
})
e.p.extensionMap = make(map[int32]Extension)
}
return e.p.extensionMap
}
// extensionsRead returns the extensions map for read-only use. It may be nil.
// The caller must hold the returned mutex's lock when accessing Elements within the map.
func (e *XXX_InternalExtensions) extensionsRead() (map[int32]Extension, sync.Locker) {
if e.p == nil {
return nil, nil
}
return e.p.extensionMap, &e.p.mu
}
var extendableProtoType = reflect.TypeOf((*extendableProto)(nil)).Elem()
var extendableProtoV1Type = reflect.TypeOf((*extendableProtoV1)(nil)).Elem()
// ExtensionDesc represents an extension specification.
// Used in generated code from the protocol compiler.
type ExtensionDesc struct {
ExtendedType Message // nil pointer to the type that is being extended
ExtensionType interface{} // nil pointer to the extension type
Field int32 // field number
Name string // fully-qualified name of extension, for text formatting
Tag string // protobuf tag style
}
func (ed *ExtensionDesc) repeated() bool {
t := reflect.TypeOf(ed.ExtensionType)
return t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8
}
// Extension represents an extension in a message.
type Extension struct {
// When an extension is stored in a message using SetExtension
// only desc and value are set. When the message is marshaled
// enc will be set to the encoded form of the message.
//
// When a message is unmarshaled and contains extensions, each
// extension will have only enc set. When such an extension is
// accessed using GetExtension (or GetExtensions) desc and value
// will be set.
desc *ExtensionDesc
value interface{}
enc []byte
}
// SetRawExtension is for testing only.
func SetRawExtension(base Message, id int32, b []byte) {
epb, ok := extendable(base)
if !ok {
return
}
extmap := epb.extensionsWrite()
extmap[id] = Extension{enc: b}
}
// isExtensionField returns true iff the given field number is in an extension range.
func isExtensionField(pb extendableProto, field int32) bool {
for _, er := range pb.ExtensionRangeArray() {
if er.Start <= field && field <= er.End {
return true
}
}
return false
}
// checkExtensionTypes checks that the given extension is valid for pb.
func checkExtensionTypes(pb extendableProto, extension *ExtensionDesc) error {
var pbi interface{} = pb
// Check the extended type.
if ea, ok := pbi.(extensionAdapter); ok {
pbi = ea.extendableProtoV1
}
if a, b := reflect.TypeOf(pbi), reflect.TypeOf(extension.ExtendedType); a != b {
return errors.New("proto: bad extended type; " + b.String() + " does not extend " + a.String())
}
// Check the range.
if !isExtensionField(pb, extension.Field) {
return errors.New("proto: bad extension number; not in declared ranges")
}
return nil
}
// extPropKey is sufficient to uniquely identify an extension.
type extPropKey struct {
base reflect.Type
field int32
}
var extProp = struct {
sync.RWMutex
m map[extPropKey]*Properties
}{
m: make(map[extPropKey]*Properties),
}
func extensionProperties(ed *ExtensionDesc) *Properties {
key := extPropKey{base: reflect.TypeOf(ed.ExtendedType), field: ed.Field}
extProp.RLock()
if prop, ok := extProp.m[key]; ok {
extProp.RUnlock()
return prop
}
extProp.RUnlock()
extProp.Lock()
defer extProp.Unlock()
// Check again.
if prop, ok := extProp.m[key]; ok {
return prop
}
prop := new(Properties)
prop.Init(reflect.TypeOf(ed.ExtensionType), "unknown_name", ed.Tag, nil)
extProp.m[key] = prop
return prop
}
// encode encodes any unmarshaled (unencoded) extensions in e.
func encodeExtensions(e *XXX_InternalExtensions) error {
m, mu := e.extensionsRead()
if m == nil {
return nil // fast path
}
mu.Lock()
defer mu.Unlock()
return encodeExtensionsMap(m)
}
// encode encodes any unmarshaled (unencoded) extensions in e.
func encodeExtensionsMap(m map[int32]Extension) error {
for k, e := range m {
if e.value == nil || e.desc == nil {
// Extension is only in its encoded form.
continue
}
// We don't skip extensions that have an encoded form set,
// because the extension value may have been mutated after
// the last time this function was called.
et := reflect.TypeOf(e.desc.ExtensionType)
props := extensionProperties(e.desc)
p := NewBuffer(nil)
// If e.value has type T, the encoder expects a *struct{ X T }.
// Pass a *T with a zero field and hope it all works out.
x := reflect.New(et)
x.Elem().Set(reflect.ValueOf(e.value))
if err := props.enc(p, props, toStructPointer(x)); err != nil {
return err
}
e.enc = p.buf
m[k] = e
}
return nil
}
func extensionsSize(e *XXX_InternalExtensions) (n int) {
m, mu := e.extensionsRead()
if m == nil {
return 0
}
mu.Lock()
defer mu.Unlock()
return extensionsMapSize(m)
}
func extensionsMapSize(m map[int32]Extension) (n int) {
for _, e := range m {
if e.value == nil || e.desc == nil {
// Extension is only in its encoded form.
n += len(e.enc)
continue
}
// We don't skip extensions that have an encoded form set,
// because the extension value may have been mutated after
// the last time this function was called.
et := reflect.TypeOf(e.desc.ExtensionType)
props := extensionProperties(e.desc)
// If e.value has type T, the encoder expects a *struct{ X T }.
// Pass a *T with a zero field and hope it all works out.
x := reflect.New(et)
x.Elem().Set(reflect.ValueOf(e.value))
n += props.size(props, toStructPointer(x))
}
return
}
// HasExtension returns whether the given extension is present in pb.
func HasExtension(pb Message, extension *ExtensionDesc) bool {
// TODO: Check types, field numbers, etc.?
epb, ok := extendable(pb)
if !ok {
return false
}
extmap, mu := epb.extensionsRead()
if extmap == nil {
return false
}
mu.Lock()
_, ok = extmap[extension.Field]
mu.Unlock()
return ok
}
// ClearExtension removes the given extension from pb.
func ClearExtension(pb Message, extension *ExtensionDesc) {
epb, ok := extendable(pb)
if !ok {
return
}
// TODO: Check types, field numbers, etc.?
extmap := epb.extensionsWrite()
delete(extmap, extension.Field)
}
// GetExtension parses and returns the given extension of pb.
// If the extension is not present and has no default value it returns ErrMissingExtension.
func GetExtension(pb Message, extension *ExtensionDesc) (interface{}, error) {
epb, ok := extendable(pb)
if !ok {
return nil, errors.New("proto: not an extendable proto")
}
if err := checkExtensionTypes(epb, extension); err != nil {
return nil, err
}
emap, mu := epb.extensionsRead()
if emap == nil {
return defaultExtensionValue(extension)
}
mu.Lock()
defer mu.Unlock()
e, ok := emap[extension.Field]
if !ok {
// defaultExtensionValue returns the default value or
// ErrMissingExtension if there is no default.
return defaultExtensionValue(extension)
}
if e.value != nil {
// Already decoded. Check the descriptor, though.
if e.desc != extension {
// This shouldn't happen. If it does, it means that
// GetExtension was called twice with two different
// descriptors with the same field number.
return nil, errors.New("proto: descriptor conflict")
}
return e.value, nil
}
v, err := decodeExtension(e.enc, extension)
if err != nil {
return nil, err
}
// Remember the decoded version and drop the encoded version.
// That way it is safe to mutate what we return.
e.value = v
e.desc = extension
e.enc = nil
emap[extension.Field] = e
return e.value, nil
}
// defaultExtensionValue returns the default value for extension.
// If no default for an extension is defined ErrMissingExtension is returned.
func defaultExtensionValue(extension *ExtensionDesc) (interface{}, error) {
t := reflect.TypeOf(extension.ExtensionType)
props := extensionProperties(extension)
sf, _, err := fieldDefault(t, props)
if err != nil {
return nil, err
}
if sf == nil || sf.value == nil {
// There is no default value.
return nil, ErrMissingExtension
}
if t.Kind() != reflect.Ptr {
// We do not need to return a Ptr, we can directly return sf.value.
return sf.value, nil
}
// We need to return an interface{} that is a pointer to sf.value.
value := reflect.New(t).Elem()
value.Set(reflect.New(value.Type().Elem()))
if sf.kind == reflect.Int32 {
// We may have an int32 or an enum, but the underlying data is int32.
// Since we can't set an int32 into a non int32 reflect.value directly
// set it as a int32.
value.Elem().SetInt(int64(sf.value.(int32)))
} else {
value.Elem().Set(reflect.ValueOf(sf.value))
}
return value.Interface(), nil
}
// decodeExtension decodes an extension encoded in b.
func decodeExtension(b []byte, extension *ExtensionDesc) (interface{}, error) {
o := NewBuffer(b)
t := reflect.TypeOf(extension.ExtensionType)
props := extensionProperties(extension)
// t is a pointer to a struct, pointer to basic type or a slice.
// Allocate a "field" to store the pointer/slice itself; the
// pointer/slice will be stored here. We pass
// the address of this field to props.dec.
// This passes a zero field and a *t and lets props.dec
// interpret it as a *struct{ x t }.
value := reflect.New(t).Elem()
for {
// Discard wire type and field number varint. It isn't needed.
if _, err := o.DecodeVarint(); err != nil {
return nil, err
}
if err := props.dec(o, props, toStructPointer(value.Addr())); err != nil {
return nil, err
}
if o.index >= len(o.buf) {
break
}
}
return value.Interface(), nil
}
// GetExtensions returns a slice of the extensions present in pb that are also listed in es.
// The returned slice has the same length as es; missing extensions will appear as nil elements.
func GetExtensions(pb Message, es []*ExtensionDesc) (extensions []interface{}, err error) {
epb, ok := extendable(pb)
if !ok {
return nil, errors.New("proto: not an extendable proto")
}
extensions = make([]interface{}, len(es))
for i, e := range es {
extensions[i], err = GetExtension(epb, e)
if err == ErrMissingExtension {
err = nil
}
if err != nil {
return
}
}
return
}
// SetExtension sets the specified extension of pb to the specified value.
func SetExtension(pb Message, extension *ExtensionDesc, value interface{}) error {
epb, ok := extendable(pb)
if !ok {
return errors.New("proto: not an extendable proto")
}
if err := checkExtensionTypes(epb, extension); err != nil {
return err
}
typ := reflect.TypeOf(extension.ExtensionType)
if typ != reflect.TypeOf(value) {
return errors.New("proto: bad extension value type")
}
// nil extension values need to be caught early, because the
// encoder can't distinguish an ErrNil due to a nil extension
// from an ErrNil due to a missing field. Extensions are
// always optional, so the encoder would just swallow the error
// and drop all the extensions from the encoded message.
if reflect.ValueOf(value).IsNil() {
return fmt.Errorf("proto: SetExtension called with nil value of type %T", value)
}
extmap := epb.extensionsWrite()
extmap[extension.Field] = Extension{desc: extension, value: value}
return nil
}
// ClearAllExtensions clears all extensions from pb.
func ClearAllExtensions(pb Message) {
epb, ok := extendable(pb)
if !ok {
return
}
m := epb.extensionsWrite()
for k := range m {
delete(m, k)
}
}
// A global registry of extensions.
// The generated code will register the generated descriptors by calling RegisterExtension.
var extensionMaps = make(map[reflect.Type]map[int32]*ExtensionDesc)
// RegisterExtension is called from the generated code.
func RegisterExtension(desc *ExtensionDesc) {
st := reflect.TypeOf(desc.ExtendedType).Elem()
m := extensionMaps[st]
if m == nil {
m = make(map[int32]*ExtensionDesc)
extensionMaps[st] = m
}
if _, ok := m[desc.Field]; ok {
panic("proto: duplicate extension registered: " + st.String() + " " + strconv.Itoa(int(desc.Field)))
}
m[desc.Field] = desc
}
// RegisteredExtensions returns a map of the registered extensions of a
// protocol buffer struct, indexed by the extension number.
// The argument pb should be a nil pointer to the struct type.
func RegisteredExtensions(pb Message) map[int32]*ExtensionDesc {
return extensionMaps[reflect.TypeOf(pb).Elem()]
}

898
vendor/github.com/golang/protobuf/proto/lib.go generated vendored
View File

@ -1,898 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/*
Package proto converts data structures to and from the wire format of
protocol buffers. It works in concert with the Go source code generated
for .proto files by the protocol compiler.
A summary of the properties of the protocol buffer interface
for a protocol buffer variable v:
- Names are turned from camel_case to CamelCase for export.
- There are no methods on v to set fields; just treat
them as structure fields.
- There are getters that return a field's value if set,
and return the field's default value if unset.
The getters work even if the receiver is a nil message.
- The zero value for a struct is its correct initialization state.
All desired fields must be set before marshaling.
- A Reset() method will restore a protobuf struct to its zero state.
- Non-repeated fields are pointers to the values; nil means unset.
That is, optional or required field int32 f becomes F *int32.
- Repeated fields are slices.
- Helper functions are available to aid the setting of fields.
msg.Foo = proto.String("hello") // set field
- Constants are defined to hold the default values of all fields that
have them. They have the form Default_StructName_FieldName.
Because the getter methods handle defaulted values,
direct use of these constants should be rare.
- Enums are given type names and maps from names to values.
Enum values are prefixed by the enclosing message's name, or by the
enum's type name if it is a top-level enum. Enum types have a String
method, and a Enum method to assist in message construction.
- Nested messages, groups and enums have type names prefixed with the name of
the surrounding message type.
- Extensions are given descriptor names that start with E_,
followed by an underscore-delimited list of the nested messages
that contain it (if any) followed by the CamelCased name of the
extension field itself. HasExtension, ClearExtension, GetExtension
and SetExtension are functions for manipulating extensions.
- Oneof field sets are given a single field in their message,
with distinguished wrapper types for each possible field value.
- Marshal and Unmarshal are functions to encode and decode the wire format.
When the .proto file specifies `syntax="proto3"`, there are some differences:
- Non-repeated fields of non-message type are values instead of pointers.
- Getters are only generated for message and oneof fields.
- Enum types do not get an Enum method.
The simplest way to describe this is to see an example.
Given file test.proto, containing
package example;
enum FOO { X = 17; }
message Test {
required string label = 1;
optional int32 type = 2 [default=77];
repeated int64 reps = 3;
optional group OptionalGroup = 4 {
required string RequiredField = 5;
}
oneof union {
int32 number = 6;
string name = 7;
}
}
The resulting file, test.pb.go, is:
package example
import proto "github.com/golang/protobuf/proto"
import math "math"
type FOO int32
const (
FOO_X FOO = 17
)
var FOO_name = map[int32]string{
17: "X",
}
var FOO_value = map[string]int32{
"X": 17,
}
func (x FOO) Enum() *FOO {
p := new(FOO)
*p = x
return p
}
func (x FOO) String() string {
return proto.EnumName(FOO_name, int32(x))
}
func (x *FOO) UnmarshalJSON(data []byte) error {
value, err := proto.UnmarshalJSONEnum(FOO_value, data)
if err != nil {
return err
}
*x = FOO(value)
return nil
}
type Test struct {
Label *string `protobuf:"bytes,1,req,name=label" json:"label,omitempty"`
Type *int32 `protobuf:"varint,2,opt,name=type,def=77" json:"type,omitempty"`
Reps []int64 `protobuf:"varint,3,rep,name=reps" json:"reps,omitempty"`
Optionalgroup *Test_OptionalGroup `protobuf:"group,4,opt,name=OptionalGroup" json:"optionalgroup,omitempty"`
// Types that are valid to be assigned to Union:
// *Test_Number
// *Test_Name
Union isTest_Union `protobuf_oneof:"union"`
XXX_unrecognized []byte `json:"-"`
}
func (m *Test) Reset() { *m = Test{} }
func (m *Test) String() string { return proto.CompactTextString(m) }
func (*Test) ProtoMessage() {}
type isTest_Union interface {
isTest_Union()
}
type Test_Number struct {
Number int32 `protobuf:"varint,6,opt,name=number"`
}
type Test_Name struct {
Name string `protobuf:"bytes,7,opt,name=name"`
}
func (*Test_Number) isTest_Union() {}
func (*Test_Name) isTest_Union() {}
func (m *Test) GetUnion() isTest_Union {
if m != nil {
return m.Union
}
return nil
}
const Default_Test_Type int32 = 77
func (m *Test) GetLabel() string {
if m != nil && m.Label != nil {
return *m.Label
}
return ""
}
func (m *Test) GetType() int32 {
if m != nil && m.Type != nil {
return *m.Type
}
return Default_Test_Type
}
func (m *Test) GetOptionalgroup() *Test_OptionalGroup {
if m != nil {
return m.Optionalgroup
}
return nil
}
type Test_OptionalGroup struct {
RequiredField *string `protobuf:"bytes,5,req" json:"RequiredField,omitempty"`
}
func (m *Test_OptionalGroup) Reset() { *m = Test_OptionalGroup{} }
func (m *Test_OptionalGroup) String() string { return proto.CompactTextString(m) }
func (m *Test_OptionalGroup) GetRequiredField() string {
if m != nil && m.RequiredField != nil {
return *m.RequiredField
}
return ""
}
func (m *Test) GetNumber() int32 {
if x, ok := m.GetUnion().(*Test_Number); ok {
return x.Number
}
return 0
}
func (m *Test) GetName() string {
if x, ok := m.GetUnion().(*Test_Name); ok {
return x.Name
}
return ""
}
func init() {
proto.RegisterEnum("example.FOO", FOO_name, FOO_value)
}
To create and play with a Test object:
package main
import (
"log"
"github.com/golang/protobuf/proto"
pb "./example.pb"
)
func main() {
test := &pb.Test{
Label: proto.String("hello"),
Type: proto.Int32(17),
Reps: []int64{1, 2, 3},
Optionalgroup: &pb.Test_OptionalGroup{
RequiredField: proto.String("good bye"),
},
Union: &pb.Test_Name{"fred"},
}
data, err := proto.Marshal(test)
if err != nil {
log.Fatal("marshaling error: ", err)
}
newTest := &pb.Test{}
err = proto.Unmarshal(data, newTest)
if err != nil {
log.Fatal("unmarshaling error: ", err)
}
// Now test and newTest contain the same data.
if test.GetLabel() != newTest.GetLabel() {
log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel())
}
// Use a type switch to determine which oneof was set.
switch u := test.Union.(type) {
case *pb.Test_Number: // u.Number contains the number.
case *pb.Test_Name: // u.Name contains the string.
}
// etc.
}
*/
package proto
import (
"encoding/json"
"fmt"
"log"
"reflect"
"sort"
"strconv"
"sync"
)
// Message is implemented by generated protocol buffer messages.
type Message interface {
Reset()
String() string
ProtoMessage()
}
// Stats records allocation details about the protocol buffer encoders
// and decoders. Useful for tuning the library itself.
type Stats struct {
Emalloc uint64 // mallocs in encode
Dmalloc uint64 // mallocs in decode
Encode uint64 // number of encodes
Decode uint64 // number of decodes
Chit uint64 // number of cache hits
Cmiss uint64 // number of cache misses
Size uint64 // number of sizes
}
// Set to true to enable stats collection.
const collectStats = false
var stats Stats
// GetStats returns a copy of the global Stats structure.
func GetStats() Stats { return stats }
// A Buffer is a buffer manager for marshaling and unmarshaling
// protocol buffers. It may be reused between invocations to
// reduce memory usage. It is not necessary to use a Buffer;
// the global functions Marshal and Unmarshal create a
// temporary Buffer and are fine for most applications.
type Buffer struct {
buf []byte // encode/decode byte stream
index int // write point
// pools of basic types to amortize allocation.
bools []bool
uint32s []uint32
uint64s []uint64
// extra pools, only used with pointer_reflect.go
int32s []int32
int64s []int64
float32s []float32
float64s []float64
}
// NewBuffer allocates a new Buffer and initializes its internal data to
// the contents of the argument slice.
func NewBuffer(e []byte) *Buffer {
return &Buffer{buf: e}
}
// Reset resets the Buffer, ready for marshaling a new protocol buffer.
func (p *Buffer) Reset() {
p.buf = p.buf[0:0] // for reading/writing
p.index = 0 // for reading
}
// SetBuf replaces the internal buffer with the slice,
// ready for unmarshaling the contents of the slice.
func (p *Buffer) SetBuf(s []byte) {
p.buf = s
p.index = 0
}
// Bytes returns the contents of the Buffer.
func (p *Buffer) Bytes() []byte { return p.buf }
/*
* Helper routines for simplifying the creation of optional fields of basic type.
*/
// Bool is a helper routine that allocates a new bool value
// to store v and returns a pointer to it.
func Bool(v bool) *bool {
return &v
}
// Int32 is a helper routine that allocates a new int32 value
// to store v and returns a pointer to it.
func Int32(v int32) *int32 {
return &v
}
// Int is a helper routine that allocates a new int32 value
// to store v and returns a pointer to it, but unlike Int32
// its argument value is an int.
func Int(v int) *int32 {
p := new(int32)
*p = int32(v)
return p
}
// Int64 is a helper routine that allocates a new int64 value
// to store v and returns a pointer to it.
func Int64(v int64) *int64 {
return &v
}
// Float32 is a helper routine that allocates a new float32 value
// to store v and returns a pointer to it.
func Float32(v float32) *float32 {
return &v
}
// Float64 is a helper routine that allocates a new float64 value
// to store v and returns a pointer to it.
func Float64(v float64) *float64 {
return &v
}
// Uint32 is a helper routine that allocates a new uint32 value
// to store v and returns a pointer to it.
func Uint32(v uint32) *uint32 {
return &v
}
// Uint64 is a helper routine that allocates a new uint64 value
// to store v and returns a pointer to it.
func Uint64(v uint64) *uint64 {
return &v
}
// String is a helper routine that allocates a new string value
// to store v and returns a pointer to it.
func String(v string) *string {
return &v
}
// EnumName is a helper function to simplify printing protocol buffer enums
// by name. Given an enum map and a value, it returns a useful string.
func EnumName(m map[int32]string, v int32) string {
s, ok := m[v]
if ok {
return s
}
return strconv.Itoa(int(v))
}
// UnmarshalJSONEnum is a helper function to simplify recovering enum int values
// from their JSON-encoded representation. Given a map from the enum's symbolic
// names to its int values, and a byte buffer containing the JSON-encoded
// value, it returns an int32 that can be cast to the enum type by the caller.
//
// The function can deal with both JSON representations, numeric and symbolic.
func UnmarshalJSONEnum(m map[string]int32, data []byte, enumName string) (int32, error) {
if data[0] == '"' {
// New style: enums are strings.
var repr string
if err := json.Unmarshal(data, &repr); err != nil {
return -1, err
}
val, ok := m[repr]
if !ok {
return 0, fmt.Errorf("unrecognized enum %s value %q", enumName, repr)
}
return val, nil
}
// Old style: enums are ints.
var val int32
if err := json.Unmarshal(data, &val); err != nil {
return 0, fmt.Errorf("cannot unmarshal %#q into enum %s", data, enumName)
}
return val, nil
}
// DebugPrint dumps the encoded data in b in a debugging format with a header
// including the string s. Used in testing but made available for general debugging.
func (p *Buffer) DebugPrint(s string, b []byte) {
var u uint64
obuf := p.buf
index := p.index
p.buf = b
p.index = 0
depth := 0
fmt.Printf("\n--- %s ---\n", s)
out:
for {
for i := 0; i < depth; i++ {
fmt.Print(" ")
}
index := p.index
if index == len(p.buf) {
break
}
op, err := p.DecodeVarint()
if err != nil {
fmt.Printf("%3d: fetching op err %v\n", index, err)
break out
}
tag := op >> 3
wire := op & 7
switch wire {
default:
fmt.Printf("%3d: t=%3d unknown wire=%d\n",
index, tag, wire)
break out
case WireBytes:
var r []byte
r, err = p.DecodeRawBytes(false)
if err != nil {
break out
}
fmt.Printf("%3d: t=%3d bytes [%d]", index, tag, len(r))
if len(r) <= 6 {
for i := 0; i < len(r); i++ {
fmt.Printf(" %.2x", r[i])
}
} else {
for i := 0; i < 3; i++ {
fmt.Printf(" %.2x", r[i])
}
fmt.Printf(" ..")
for i := len(r) - 3; i < len(r); i++ {
fmt.Printf(" %.2x", r[i])
}
}
fmt.Printf("\n")
case WireFixed32:
u, err = p.DecodeFixed32()
if err != nil {
fmt.Printf("%3d: t=%3d fix32 err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d fix32 %d\n", index, tag, u)
case WireFixed64:
u, err = p.DecodeFixed64()
if err != nil {
fmt.Printf("%3d: t=%3d fix64 err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d fix64 %d\n", index, tag, u)
case WireVarint:
u, err = p.DecodeVarint()
if err != nil {
fmt.Printf("%3d: t=%3d varint err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d varint %d\n", index, tag, u)
case WireStartGroup:
fmt.Printf("%3d: t=%3d start\n", index, tag)
depth++
case WireEndGroup:
depth--
fmt.Printf("%3d: t=%3d end\n", index, tag)
}
}
if depth != 0 {
fmt.Printf("%3d: start-end not balanced %d\n", p.index, depth)
}
fmt.Printf("\n")
p.buf = obuf
p.index = index
}
// SetDefaults sets unset protocol buffer fields to their default values.
// It only modifies fields that are both unset and have defined defaults.
// It recursively sets default values in any non-nil sub-messages.
func SetDefaults(pb Message) {
setDefaults(reflect.ValueOf(pb), true, false)
}
// v is a pointer to a struct.
func setDefaults(v reflect.Value, recur, zeros bool) {
v = v.Elem()
defaultMu.RLock()
dm, ok := defaults[v.Type()]
defaultMu.RUnlock()
if !ok {
dm = buildDefaultMessage(v.Type())
defaultMu.Lock()
defaults[v.Type()] = dm
defaultMu.Unlock()
}
for _, sf := range dm.scalars {
f := v.Field(sf.index)
if !f.IsNil() {
// field already set
continue
}
dv := sf.value
if dv == nil && !zeros {
// no explicit default, and don't want to set zeros
continue
}
fptr := f.Addr().Interface() // **T
// TODO: Consider batching the allocations we do here.
switch sf.kind {
case reflect.Bool:
b := new(bool)
if dv != nil {
*b = dv.(bool)
}
*(fptr.(**bool)) = b
case reflect.Float32:
f := new(float32)
if dv != nil {
*f = dv.(float32)
}
*(fptr.(**float32)) = f
case reflect.Float64:
f := new(float64)
if dv != nil {
*f = dv.(float64)
}
*(fptr.(**float64)) = f
case reflect.Int32:
// might be an enum
if ft := f.Type(); ft != int32PtrType {
// enum
f.Set(reflect.New(ft.Elem()))
if dv != nil {
f.Elem().SetInt(int64(dv.(int32)))
}
} else {
// int32 field
i := new(int32)
if dv != nil {
*i = dv.(int32)
}
*(fptr.(**int32)) = i
}
case reflect.Int64:
i := new(int64)
if dv != nil {
*i = dv.(int64)
}
*(fptr.(**int64)) = i
case reflect.String:
s := new(string)
if dv != nil {
*s = dv.(string)
}
*(fptr.(**string)) = s
case reflect.Uint8:
// exceptional case: []byte
var b []byte
if dv != nil {
db := dv.([]byte)
b = make([]byte, len(db))
copy(b, db)
} else {
b = []byte{}
}
*(fptr.(*[]byte)) = b
case reflect.Uint32:
u := new(uint32)
if dv != nil {
*u = dv.(uint32)
}
*(fptr.(**uint32)) = u
case reflect.Uint64:
u := new(uint64)
if dv != nil {
*u = dv.(uint64)
}
*(fptr.(**uint64)) = u
default:
log.Printf("proto: can't set default for field %v (sf.kind=%v)", f, sf.kind)
}
}
for _, ni := range dm.nested {
f := v.Field(ni)
// f is *T or []*T or map[T]*T
switch f.Kind() {
case reflect.Ptr:
if f.IsNil() {
continue
}
setDefaults(f, recur, zeros)
case reflect.Slice:
for i := 0; i < f.Len(); i++ {
e := f.Index(i)
if e.IsNil() {
continue
}
setDefaults(e, recur, zeros)
}
case reflect.Map:
for _, k := range f.MapKeys() {
e := f.MapIndex(k)
if e.IsNil() {
continue
}
setDefaults(e, recur, zeros)
}
}
}
}
var (
// defaults maps a protocol buffer struct type to a slice of the fields,
// with its scalar fields set to their proto-declared non-zero default values.
defaultMu sync.RWMutex
defaults = make(map[reflect.Type]defaultMessage)
int32PtrType = reflect.TypeOf((*int32)(nil))
)
// defaultMessage represents information about the default values of a message.
type defaultMessage struct {
scalars []scalarField
nested []int // struct field index of nested messages
}
type scalarField struct {
index int // struct field index
kind reflect.Kind // element type (the T in *T or []T)
value interface{} // the proto-declared default value, or nil
}
// t is a struct type.
func buildDefaultMessage(t reflect.Type) (dm defaultMessage) {
sprop := GetProperties(t)
for _, prop := range sprop.Prop {
fi, ok := sprop.decoderTags.get(prop.Tag)
if !ok {
// XXX_unrecognized
continue
}
ft := t.Field(fi).Type
sf, nested, err := fieldDefault(ft, prop)
switch {
case err != nil:
log.Print(err)
case nested:
dm.nested = append(dm.nested, fi)
case sf != nil:
sf.index = fi
dm.scalars = append(dm.scalars, *sf)
}
}
return dm
}
// fieldDefault returns the scalarField for field type ft.
// sf will be nil if the field can not have a default.
// nestedMessage will be true if this is a nested message.
// Note that sf.index is not set on return.
func fieldDefault(ft reflect.Type, prop *Properties) (sf *scalarField, nestedMessage bool, err error) {
var canHaveDefault bool
switch ft.Kind() {
case reflect.Ptr:
if ft.Elem().Kind() == reflect.Struct {
nestedMessage = true
} else {
canHaveDefault = true // proto2 scalar field
}
case reflect.Slice:
switch ft.Elem().Kind() {
case reflect.Ptr:
nestedMessage = true // repeated message
case reflect.Uint8:
canHaveDefault = true // bytes field
}
case reflect.Map:
if ft.Elem().Kind() == reflect.Ptr {
nestedMessage = true // map with message values
}
}
if !canHaveDefault {
if nestedMessage {
return nil, true, nil
}
return nil, false, nil
}
// We now know that ft is a pointer or slice.
sf = &scalarField{kind: ft.Elem().Kind()}
// scalar fields without defaults
if !prop.HasDefault {
return sf, false, nil
}
// a scalar field: either *T or []byte
switch ft.Elem().Kind() {
case reflect.Bool:
x, err := strconv.ParseBool(prop.Default)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default bool %q: %v", prop.Default, err)
}
sf.value = x
case reflect.Float32:
x, err := strconv.ParseFloat(prop.Default, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default float32 %q: %v", prop.Default, err)
}
sf.value = float32(x)
case reflect.Float64:
x, err := strconv.ParseFloat(prop.Default, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default float64 %q: %v", prop.Default, err)
}
sf.value = x
case reflect.Int32:
x, err := strconv.ParseInt(prop.Default, 10, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default int32 %q: %v", prop.Default, err)
}
sf.value = int32(x)
case reflect.Int64:
x, err := strconv.ParseInt(prop.Default, 10, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default int64 %q: %v", prop.Default, err)
}
sf.value = x
case reflect.String:
sf.value = prop.Default
case reflect.Uint8:
// []byte (not *uint8)
sf.value = []byte(prop.Default)
case reflect.Uint32:
x, err := strconv.ParseUint(prop.Default, 10, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default uint32 %q: %v", prop.Default, err)
}
sf.value = uint32(x)
case reflect.Uint64:
x, err := strconv.ParseUint(prop.Default, 10, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default uint64 %q: %v", prop.Default, err)
}
sf.value = x
default:
return nil, false, fmt.Errorf("proto: unhandled def kind %v", ft.Elem().Kind())
}
return sf, false, nil
}
// Map fields may have key types of non-float scalars, strings and enums.
// The easiest way to sort them in some deterministic order is to use fmt.
// If this turns out to be inefficient we can always consider other options,
// such as doing a Schwartzian transform.
func mapKeys(vs []reflect.Value) sort.Interface {
s := mapKeySorter{
vs: vs,
// default Less function: textual comparison
less: func(a, b reflect.Value) bool {
return fmt.Sprint(a.Interface()) < fmt.Sprint(b.Interface())
},
}
// Type specialization per https://developers.google.com/protocol-buffers/docs/proto#maps;
// numeric keys are sorted numerically.
if len(vs) == 0 {
return s
}
switch vs[0].Kind() {
case reflect.Int32, reflect.Int64:
s.less = func(a, b reflect.Value) bool { return a.Int() < b.Int() }
case reflect.Uint32, reflect.Uint64:
s.less = func(a, b reflect.Value) bool { return a.Uint() < b.Uint() }
}
return s
}
type mapKeySorter struct {
vs []reflect.Value
less func(a, b reflect.Value) bool
}
func (s mapKeySorter) Len() int { return len(s.vs) }
func (s mapKeySorter) Swap(i, j int) { s.vs[i], s.vs[j] = s.vs[j], s.vs[i] }
func (s mapKeySorter) Less(i, j int) bool {
return s.less(s.vs[i], s.vs[j])
}
// isProto3Zero reports whether v is a zero proto3 value.
func isProto3Zero(v reflect.Value) bool {
switch v.Kind() {
case reflect.Bool:
return !v.Bool()
case reflect.Int32, reflect.Int64:
return v.Int() == 0
case reflect.Uint32, reflect.Uint64:
return v.Uint() == 0
case reflect.Float32, reflect.Float64:
return v.Float() == 0
case reflect.String:
return v.String() == ""
}
return false
}
// ProtoPackageIsVersion2 is referenced from generated protocol buffer files
// to assert that that code is compatible with this version of the proto package.
const ProtoPackageIsVersion2 = true
// ProtoPackageIsVersion1 is referenced from generated protocol buffer files
// to assert that that code is compatible with this version of the proto package.
const ProtoPackageIsVersion1 = true

311
vendor/github.com/golang/protobuf/proto/message_set.go generated vendored
View File

@ -1,311 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Support for message sets.
*/
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"reflect"
"sort"
)
// errNoMessageTypeID occurs when a protocol buffer does not have a message type ID.
// A message type ID is required for storing a protocol buffer in a message set.
var errNoMessageTypeID = errors.New("proto does not have a message type ID")
// The first two types (_MessageSet_Item and messageSet)
// model what the protocol compiler produces for the following protocol message:
// message MessageSet {
// repeated group Item = 1 {
// required int32 type_id = 2;
// required string message = 3;
// };
// }
// That is the MessageSet wire format. We can't use a proto to generate these
// because that would introduce a circular dependency between it and this package.
type _MessageSet_Item struct {
TypeId *int32 `protobuf:"varint,2,req,name=type_id"`
Message []byte `protobuf:"bytes,3,req,name=message"`
}
type messageSet struct {
Item []*_MessageSet_Item `protobuf:"group,1,rep"`
XXX_unrecognized []byte
// TODO: caching?
}
// Make sure messageSet is a Message.
var _ Message = (*messageSet)(nil)
// messageTypeIder is an interface satisfied by a protocol buffer type
// that may be stored in a MessageSet.
type messageTypeIder interface {
MessageTypeId() int32
}
func (ms *messageSet) find(pb Message) *_MessageSet_Item {
mti, ok := pb.(messageTypeIder)
if !ok {
return nil
}
id := mti.MessageTypeId()
for _, item := range ms.Item {
if *item.TypeId == id {
return item
}
}
return nil
}
func (ms *messageSet) Has(pb Message) bool {
if ms.find(pb) != nil {
return true
}
return false
}
func (ms *messageSet) Unmarshal(pb Message) error {
if item := ms.find(pb); item != nil {
return Unmarshal(item.Message, pb)
}
if _, ok := pb.(messageTypeIder); !ok {
return errNoMessageTypeID
}
return nil // TODO: return error instead?
}
func (ms *messageSet) Marshal(pb Message) error {
msg, err := Marshal(pb)
if err != nil {
return err
}
if item := ms.find(pb); item != nil {
// reuse existing item
item.Message = msg
return nil
}
mti, ok := pb.(messageTypeIder)
if !ok {
return errNoMessageTypeID
}
mtid := mti.MessageTypeId()
ms.Item = append(ms.Item, &_MessageSet_Item{
TypeId: &mtid,
Message: msg,
})
return nil
}
func (ms *messageSet) Reset() { *ms = messageSet{} }
func (ms *messageSet) String() string { return CompactTextString(ms) }
func (*messageSet) ProtoMessage() {}
// Support for the message_set_wire_format message option.
func skipVarint(buf []byte) []byte {
i := 0
for ; buf[i]&0x80 != 0; i++ {
}
return buf[i+1:]
}
// MarshalMessageSet encodes the extension map represented by m in the message set wire format.
// It is called by generated Marshal methods on protocol buffer messages with the message_set_wire_format option.
func MarshalMessageSet(exts interface{}) ([]byte, error) {
var m map[int32]Extension
switch exts := exts.(type) {
case *XXX_InternalExtensions:
if err := encodeExtensions(exts); err != nil {
return nil, err
}
m, _ = exts.extensionsRead()
case map[int32]Extension:
if err := encodeExtensionsMap(exts); err != nil {
return nil, err
}
m = exts
default:
return nil, errors.New("proto: not an extension map")
}
// Sort extension IDs to provide a deterministic encoding.
// See also enc_map in encode.go.
ids := make([]int, 0, len(m))
for id := range m {
ids = append(ids, int(id))
}
sort.Ints(ids)
ms := &messageSet{Item: make([]*_MessageSet_Item, 0, len(m))}
for _, id := range ids {
e := m[int32(id)]
// Remove the wire type and field number varint, as well as the length varint.
msg := skipVarint(skipVarint(e.enc))
ms.Item = append(ms.Item, &_MessageSet_Item{
TypeId: Int32(int32(id)),
Message: msg,
})
}
return Marshal(ms)
}
// UnmarshalMessageSet decodes the extension map encoded in buf in the message set wire format.
// It is called by generated Unmarshal methods on protocol buffer messages with the message_set_wire_format option.
func UnmarshalMessageSet(buf []byte, exts interface{}) error {
var m map[int32]Extension
switch exts := exts.(type) {
case *XXX_InternalExtensions:
m = exts.extensionsWrite()
case map[int32]Extension:
m = exts
default:
return errors.New("proto: not an extension map")
}
ms := new(messageSet)
if err := Unmarshal(buf, ms); err != nil {
return err
}
for _, item := range ms.Item {
id := *item.TypeId
msg := item.Message
// Restore wire type and field number varint, plus length varint.
// Be careful to preserve duplicate items.
b := EncodeVarint(uint64(id)<<3 | WireBytes)
if ext, ok := m[id]; ok {
// Existing data; rip off the tag and length varint
// so we join the new data correctly.
// We can assume that ext.enc is set because we are unmarshaling.
o := ext.enc[len(b):] // skip wire type and field number
_, n := DecodeVarint(o) // calculate length of length varint
o = o[n:] // skip length varint
msg = append(o, msg...) // join old data and new data
}
b = append(b, EncodeVarint(uint64(len(msg)))...)
b = append(b, msg...)
m[id] = Extension{enc: b}
}
return nil
}
// MarshalMessageSetJSON encodes the extension map represented by m in JSON format.
// It is called by generated MarshalJSON methods on protocol buffer messages with the message_set_wire_format option.
func MarshalMessageSetJSON(exts interface{}) ([]byte, error) {
var m map[int32]Extension
switch exts := exts.(type) {
case *XXX_InternalExtensions:
m, _ = exts.extensionsRead()
case map[int32]Extension:
m = exts
default:
return nil, errors.New("proto: not an extension map")
}
var b bytes.Buffer
b.WriteByte('{')
// Process the map in key order for deterministic output.
ids := make([]int32, 0, len(m))
for id := range m {
ids = append(ids, id)
}
sort.Sort(int32Slice(ids)) // int32Slice defined in text.go
for i, id := range ids {
ext := m[id]
if i > 0 {
b.WriteByte(',')
}
msd, ok := messageSetMap[id]
if !ok {
// Unknown type; we can't render it, so skip it.
continue
}
fmt.Fprintf(&b, `"[%s]":`, msd.name)
x := ext.value
if x == nil {
x = reflect.New(msd.t.Elem()).Interface()
if err := Unmarshal(ext.enc, x.(Message)); err != nil {
return nil, err
}
}
d, err := json.Marshal(x)
if err != nil {
return nil, err
}
b.Write(d)
}
b.WriteByte('}')
return b.Bytes(), nil
}
// UnmarshalMessageSetJSON decodes the extension map encoded in buf in JSON format.
// It is called by generated UnmarshalJSON methods on protocol buffer messages with the message_set_wire_format option.
func UnmarshalMessageSetJSON(buf []byte, exts interface{}) error {
// Common-case fast path.
if len(buf) == 0 || bytes.Equal(buf, []byte("{}")) {
return nil
}
// This is fairly tricky, and it's not clear that it is needed.
return errors.New("TODO: UnmarshalMessageSetJSON not yet implemented")
}
// A global registry of types that can be used in a MessageSet.
var messageSetMap = make(map[int32]messageSetDesc)
type messageSetDesc struct {
t reflect.Type // pointer to struct
name string
}
// RegisterMessageSetType is called from the generated code.
func RegisterMessageSetType(m Message, fieldNum int32, name string) {
messageSetMap[fieldNum] = messageSetDesc{
t: reflect.TypeOf(m),
name: name,
}
}

484
vendor/github.com/golang/protobuf/proto/pointer_reflect.go generated vendored
View File

@ -1,484 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// +build appengine js
// This file contains an implementation of proto field accesses using package reflect.
// It is slower than the code in pointer_unsafe.go but it avoids package unsafe and can
// be used on App Engine.
package proto
import (
"math"
"reflect"
)
// A structPointer is a pointer to a struct.
type structPointer struct {
v reflect.Value
}
// toStructPointer returns a structPointer equivalent to the given reflect value.
// The reflect value must itself be a pointer to a struct.
func toStructPointer(v reflect.Value) structPointer {
return structPointer{v}
}
// IsNil reports whether p is nil.
func structPointer_IsNil(p structPointer) bool {
return p.v.IsNil()
}
// Interface returns the struct pointer as an interface value.
func structPointer_Interface(p structPointer, _ reflect.Type) interface{} {
return p.v.Interface()
}
// A field identifies a field in a struct, accessible from a structPointer.
// In this implementation, a field is identified by the sequence of field indices
// passed to reflect's FieldByIndex.
type field []int
// toField returns a field equivalent to the given reflect field.
func toField(f *reflect.StructField) field {
return f.Index
}
// invalidField is an invalid field identifier.
var invalidField = field(nil)
// IsValid reports whether the field identifier is valid.
func (f field) IsValid() bool { return f != nil }
// field returns the given field in the struct as a reflect value.
func structPointer_field(p structPointer, f field) reflect.Value {
// Special case: an extension map entry with a value of type T
// passes a *T to the struct-handling code with a zero field,
// expecting that it will be treated as equivalent to *struct{ X T },
// which has the same memory layout. We have to handle that case
// specially, because reflect will panic if we call FieldByIndex on a
// non-struct.
if f == nil {
return p.v.Elem()
}
return p.v.Elem().FieldByIndex(f)
}
// ifield returns the given field in the struct as an interface value.
func structPointer_ifield(p structPointer, f field) interface{} {
return structPointer_field(p, f).Addr().Interface()
}
// Bytes returns the address of a []byte field in the struct.
func structPointer_Bytes(p structPointer, f field) *[]byte {
return structPointer_ifield(p, f).(*[]byte)
}
// BytesSlice returns the address of a [][]byte field in the struct.
func structPointer_BytesSlice(p structPointer, f field) *[][]byte {
return structPointer_ifield(p, f).(*[][]byte)
}
// Bool returns the address of a *bool field in the struct.
func structPointer_Bool(p structPointer, f field) **bool {
return structPointer_ifield(p, f).(**bool)
}
// BoolVal returns the address of a bool field in the struct.
func structPointer_BoolVal(p structPointer, f field) *bool {
return structPointer_ifield(p, f).(*bool)
}
// BoolSlice returns the address of a []bool field in the struct.
func structPointer_BoolSlice(p structPointer, f field) *[]bool {
return structPointer_ifield(p, f).(*[]bool)
}
// String returns the address of a *string field in the struct.
func structPointer_String(p structPointer, f field) **string {
return structPointer_ifield(p, f).(**string)
}
// StringVal returns the address of a string field in the struct.
func structPointer_StringVal(p structPointer, f field) *string {
return structPointer_ifield(p, f).(*string)
}
// StringSlice returns the address of a []string field in the struct.
func structPointer_StringSlice(p structPointer, f field) *[]string {
return structPointer_ifield(p, f).(*[]string)
}
// Extensions returns the address of an extension map field in the struct.
func structPointer_Extensions(p structPointer, f field) *XXX_InternalExtensions {
return structPointer_ifield(p, f).(*XXX_InternalExtensions)
}
// ExtMap returns the address of an extension map field in the struct.
func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
return structPointer_ifield(p, f).(*map[int32]Extension)
}
// NewAt returns the reflect.Value for a pointer to a field in the struct.
func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
return structPointer_field(p, f).Addr()
}
// SetStructPointer writes a *struct field in the struct.
func structPointer_SetStructPointer(p structPointer, f field, q structPointer) {
structPointer_field(p, f).Set(q.v)
}
// GetStructPointer reads a *struct field in the struct.
func structPointer_GetStructPointer(p structPointer, f field) structPointer {
return structPointer{structPointer_field(p, f)}
}
// StructPointerSlice the address of a []*struct field in the struct.
func structPointer_StructPointerSlice(p structPointer, f field) structPointerSlice {
return structPointerSlice{structPointer_field(p, f)}
}
// A structPointerSlice represents the address of a slice of pointers to structs
// (themselves messages or groups). That is, v.Type() is *[]*struct{...}.
type structPointerSlice struct {
v reflect.Value
}
func (p structPointerSlice) Len() int { return p.v.Len() }
func (p structPointerSlice) Index(i int) structPointer { return structPointer{p.v.Index(i)} }
func (p structPointerSlice) Append(q structPointer) {
p.v.Set(reflect.Append(p.v, q.v))
}
var (
int32Type = reflect.TypeOf(int32(0))
uint32Type = reflect.TypeOf(uint32(0))
float32Type = reflect.TypeOf(float32(0))
int64Type = reflect.TypeOf(int64(0))
uint64Type = reflect.TypeOf(uint64(0))
float64Type = reflect.TypeOf(float64(0))
)
// A word32 represents a field of type *int32, *uint32, *float32, or *enum.
// That is, v.Type() is *int32, *uint32, *float32, or *enum and v is assignable.
type word32 struct {
v reflect.Value
}
// IsNil reports whether p is nil.
func word32_IsNil(p word32) bool {
return p.v.IsNil()
}
// Set sets p to point at a newly allocated word with bits set to x.
func word32_Set(p word32, o *Buffer, x uint32) {
t := p.v.Type().Elem()
switch t {
case int32Type:
if len(o.int32s) == 0 {
o.int32s = make([]int32, uint32PoolSize)
}
o.int32s[0] = int32(x)
p.v.Set(reflect.ValueOf(&o.int32s[0]))
o.int32s = o.int32s[1:]
return
case uint32Type:
if len(o.uint32s) == 0 {
o.uint32s = make([]uint32, uint32PoolSize)
}
o.uint32s[0] = x
p.v.Set(reflect.ValueOf(&o.uint32s[0]))
o.uint32s = o.uint32s[1:]
return
case float32Type:
if len(o.float32s) == 0 {
o.float32s = make([]float32, uint32PoolSize)
}
o.float32s[0] = math.Float32frombits(x)
p.v.Set(reflect.ValueOf(&o.float32s[0]))
o.float32s = o.float32s[1:]
return
}
// must be enum
p.v.Set(reflect.New(t))
p.v.Elem().SetInt(int64(int32(x)))
}
// Get gets the bits pointed at by p, as a uint32.
func word32_Get(p word32) uint32 {
elem := p.v.Elem()
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32 returns a reference to a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32(p structPointer, f field) word32 {
return word32{structPointer_field(p, f)}
}
// A word32Val represents a field of type int32, uint32, float32, or enum.
// That is, v.Type() is int32, uint32, float32, or enum and v is assignable.
type word32Val struct {
v reflect.Value
}
// Set sets *p to x.
func word32Val_Set(p word32Val, x uint32) {
switch p.v.Type() {
case int32Type:
p.v.SetInt(int64(x))
return
case uint32Type:
p.v.SetUint(uint64(x))
return
case float32Type:
p.v.SetFloat(float64(math.Float32frombits(x)))
return
}
// must be enum
p.v.SetInt(int64(int32(x)))
}
// Get gets the bits pointed at by p, as a uint32.
func word32Val_Get(p word32Val) uint32 {
elem := p.v
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32Val returns a reference to a int32, uint32, float32, or enum field in the struct.
func structPointer_Word32Val(p structPointer, f field) word32Val {
return word32Val{structPointer_field(p, f)}
}
// A word32Slice is a slice of 32-bit values.
// That is, v.Type() is []int32, []uint32, []float32, or []enum.
type word32Slice struct {
v reflect.Value
}
func (p word32Slice) Append(x uint32) {
n, m := p.v.Len(), p.v.Cap()
if n < m {
p.v.SetLen(n + 1)
} else {
t := p.v.Type().Elem()
p.v.Set(reflect.Append(p.v, reflect.Zero(t)))
}
elem := p.v.Index(n)
switch elem.Kind() {
case reflect.Int32:
elem.SetInt(int64(int32(x)))
case reflect.Uint32:
elem.SetUint(uint64(x))
case reflect.Float32:
elem.SetFloat(float64(math.Float32frombits(x)))
}
}
func (p word32Slice) Len() int {
return p.v.Len()
}
func (p word32Slice) Index(i int) uint32 {
elem := p.v.Index(i)
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32Slice returns a reference to a []int32, []uint32, []float32, or []enum field in the struct.
func structPointer_Word32Slice(p structPointer, f field) word32Slice {
return word32Slice{structPointer_field(p, f)}
}
// word64 is like word32 but for 64-bit values.
type word64 struct {
v reflect.Value
}
func word64_Set(p word64, o *Buffer, x uint64) {
t := p.v.Type().Elem()
switch t {
case int64Type:
if len(o.int64s) == 0 {
o.int64s = make([]int64, uint64PoolSize)
}
o.int64s[0] = int64(x)
p.v.Set(reflect.ValueOf(&o.int64s[0]))
o.int64s = o.int64s[1:]
return
case uint64Type:
if len(o.uint64s) == 0 {
o.uint64s = make([]uint64, uint64PoolSize)
}
o.uint64s[0] = x
p.v.Set(reflect.ValueOf(&o.uint64s[0]))
o.uint64s = o.uint64s[1:]
return
case float64Type:
if len(o.float64s) == 0 {
o.float64s = make([]float64, uint64PoolSize)
}
o.float64s[0] = math.Float64frombits(x)
p.v.Set(reflect.ValueOf(&o.float64s[0]))
o.float64s = o.float64s[1:]
return
}
panic("unreachable")
}
func word64_IsNil(p word64) bool {
return p.v.IsNil()
}
func word64_Get(p word64) uint64 {
elem := p.v.Elem()
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return elem.Uint()
case reflect.Float64:
return math.Float64bits(elem.Float())
}
panic("unreachable")
}
func structPointer_Word64(p structPointer, f field) word64 {
return word64{structPointer_field(p, f)}
}
// word64Val is like word32Val but for 64-bit values.
type word64Val struct {
v reflect.Value
}
func word64Val_Set(p word64Val, o *Buffer, x uint64) {
switch p.v.Type() {
case int64Type:
p.v.SetInt(int64(x))
return
case uint64Type:
p.v.SetUint(x)
return
case float64Type:
p.v.SetFloat(math.Float64frombits(x))
return
}
panic("unreachable")
}
func word64Val_Get(p word64Val) uint64 {
elem := p.v
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return elem.Uint()
case reflect.Float64:
return math.Float64bits(elem.Float())
}
panic("unreachable")
}
func structPointer_Word64Val(p structPointer, f field) word64Val {
return word64Val{structPointer_field(p, f)}
}
type word64Slice struct {
v reflect.Value
}
func (p word64Slice) Append(x uint64) {
n, m := p.v.Len(), p.v.Cap()
if n < m {
p.v.SetLen(n + 1)
} else {
t := p.v.Type().Elem()
p.v.Set(reflect.Append(p.v, reflect.Zero(t)))
}
elem := p.v.Index(n)
switch elem.Kind() {
case reflect.Int64:
elem.SetInt(int64(int64(x)))
case reflect.Uint64:
elem.SetUint(uint64(x))
case reflect.Float64:
elem.SetFloat(float64(math.Float64frombits(x)))
}
}
func (p word64Slice) Len() int {
return p.v.Len()
}
func (p word64Slice) Index(i int) uint64 {
elem := p.v.Index(i)
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return uint64(elem.Uint())
case reflect.Float64:
return math.Float64bits(float64(elem.Float()))
}
panic("unreachable")
}
func structPointer_Word64Slice(p structPointer, f field) word64Slice {
return word64Slice{structPointer_field(p, f)}
}

270
vendor/github.com/golang/protobuf/proto/pointer_unsafe.go generated vendored
View File

@ -1,270 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// +build !appengine,!js
// This file contains the implementation of the proto field accesses using package unsafe.
package proto
import (
"reflect"
"unsafe"
)
// NOTE: These type_Foo functions would more idiomatically be methods,
// but Go does not allow methods on pointer types, and we must preserve
// some pointer type for the garbage collector. We use these
// funcs with clunky names as our poor approximation to methods.
//
// An alternative would be
// type structPointer struct { p unsafe.Pointer }
// but that does not registerize as well.
// A structPointer is a pointer to a struct.
type structPointer unsafe.Pointer
// toStructPointer returns a structPointer equivalent to the given reflect value.
func toStructPointer(v reflect.Value) structPointer {
return structPointer(unsafe.Pointer(v.Pointer()))
}
// IsNil reports whether p is nil.
func structPointer_IsNil(p structPointer) bool {
return p == nil
}
// Interface returns the struct pointer, assumed to have element type t,
// as an interface value.
func structPointer_Interface(p structPointer, t reflect.Type) interface{} {
return reflect.NewAt(t, unsafe.Pointer(p)).Interface()
}
// A field identifies a field in a struct, accessible from a structPointer.
// In this implementation, a field is identified by its byte offset from the start of the struct.
type field uintptr
// toField returns a field equivalent to the given reflect field.
func toField(f *reflect.StructField) field {
return field(f.Offset)
}
// invalidField is an invalid field identifier.
const invalidField = ^field(0)
// IsValid reports whether the field identifier is valid.
func (f field) IsValid() bool {
return f != ^field(0)
}
// Bytes returns the address of a []byte field in the struct.
func structPointer_Bytes(p structPointer, f field) *[]byte {
return (*[]byte)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BytesSlice returns the address of a [][]byte field in the struct.
func structPointer_BytesSlice(p structPointer, f field) *[][]byte {
return (*[][]byte)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// Bool returns the address of a *bool field in the struct.
func structPointer_Bool(p structPointer, f field) **bool {
return (**bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BoolVal returns the address of a bool field in the struct.
func structPointer_BoolVal(p structPointer, f field) *bool {
return (*bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BoolSlice returns the address of a []bool field in the struct.
func structPointer_BoolSlice(p structPointer, f field) *[]bool {
return (*[]bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// String returns the address of a *string field in the struct.
func structPointer_String(p structPointer, f field) **string {
return (**string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StringVal returns the address of a string field in the struct.
func structPointer_StringVal(p structPointer, f field) *string {
return (*string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StringSlice returns the address of a []string field in the struct.
func structPointer_StringSlice(p structPointer, f field) *[]string {
return (*[]string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// ExtMap returns the address of an extension map field in the struct.
func structPointer_Extensions(p structPointer, f field) *XXX_InternalExtensions {
return (*XXX_InternalExtensions)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
return (*map[int32]Extension)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// NewAt returns the reflect.Value for a pointer to a field in the struct.
func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
return reflect.NewAt(typ, unsafe.Pointer(uintptr(p)+uintptr(f)))
}
// SetStructPointer writes a *struct field in the struct.
func structPointer_SetStructPointer(p structPointer, f field, q structPointer) {
*(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f))) = q
}
// GetStructPointer reads a *struct field in the struct.
func structPointer_GetStructPointer(p structPointer, f field) structPointer {
return *(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StructPointerSlice the address of a []*struct field in the struct.
func structPointer_StructPointerSlice(p structPointer, f field) *structPointerSlice {
return (*structPointerSlice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// A structPointerSlice represents a slice of pointers to structs (themselves submessages or groups).
type structPointerSlice []structPointer
func (v *structPointerSlice) Len() int { return len(*v) }
func (v *structPointerSlice) Index(i int) structPointer { return (*v)[i] }
func (v *structPointerSlice) Append(p structPointer) { *v = append(*v, p) }
// A word32 is the address of a "pointer to 32-bit value" field.
type word32 **uint32
// IsNil reports whether *v is nil.
func word32_IsNil(p word32) bool {
return *p == nil
}
// Set sets *v to point at a newly allocated word set to x.
func word32_Set(p word32, o *Buffer, x uint32) {
if len(o.uint32s) == 0 {
o.uint32s = make([]uint32, uint32PoolSize)
}
o.uint32s[0] = x
*p = &o.uint32s[0]
o.uint32s = o.uint32s[1:]
}
// Get gets the value pointed at by *v.
func word32_Get(p word32) uint32 {
return **p
}
// Word32 returns the address of a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32(p structPointer, f field) word32 {
return word32((**uint32)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// A word32Val is the address of a 32-bit value field.
type word32Val *uint32
// Set sets *p to x.
func word32Val_Set(p word32Val, x uint32) {
*p = x
}
// Get gets the value pointed at by p.
func word32Val_Get(p word32Val) uint32 {
return *p
}
// Word32Val returns the address of a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32Val(p structPointer, f field) word32Val {
return word32Val((*uint32)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// A word32Slice is a slice of 32-bit values.
type word32Slice []uint32
func (v *word32Slice) Append(x uint32) { *v = append(*v, x) }
func (v *word32Slice) Len() int { return len(*v) }
func (v *word32Slice) Index(i int) uint32 { return (*v)[i] }
// Word32Slice returns the address of a []int32, []uint32, []float32, or []enum field in the struct.
func structPointer_Word32Slice(p structPointer, f field) *word32Slice {
return (*word32Slice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// word64 is like word32 but for 64-bit values.
type word64 **uint64
func word64_Set(p word64, o *Buffer, x uint64) {
if len(o.uint64s) == 0 {
o.uint64s = make([]uint64, uint64PoolSize)
}
o.uint64s[0] = x
*p = &o.uint64s[0]
o.uint64s = o.uint64s[1:]
}
func word64_IsNil(p word64) bool {
return *p == nil
}
func word64_Get(p word64) uint64 {
return **p
}
func structPointer_Word64(p structPointer, f field) word64 {
return word64((**uint64)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// word64Val is like word32Val but for 64-bit values.
type word64Val *uint64
func word64Val_Set(p word64Val, o *Buffer, x uint64) {
*p = x
}
func word64Val_Get(p word64Val) uint64 {
return *p
}
func structPointer_Word64Val(p structPointer, f field) word64Val {
return word64Val((*uint64)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// word64Slice is like word32Slice but for 64-bit values.
type word64Slice []uint64
func (v *word64Slice) Append(x uint64) { *v = append(*v, x) }
func (v *word64Slice) Len() int { return len(*v) }
func (v *word64Slice) Index(i int) uint64 { return (*v)[i] }
func structPointer_Word64Slice(p structPointer, f field) *word64Slice {
return (*word64Slice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}

864
vendor/github.com/golang/protobuf/proto/properties.go generated vendored
View File

@ -1,864 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Routines for encoding data into the wire format for protocol buffers.
*/
import (
"fmt"
"log"
"os"
"reflect"
"sort"
"strconv"
"strings"
"sync"
)
const debug bool = false
// Constants that identify the encoding of a value on the wire.
const (
WireVarint = 0
WireFixed64 = 1
WireBytes = 2
WireStartGroup = 3
WireEndGroup = 4
WireFixed32 = 5
)
const startSize = 10 // initial slice/string sizes
// Encoders are defined in encode.go
// An encoder outputs the full representation of a field, including its
// tag and encoder type.
type encoder func(p *Buffer, prop *Properties, base structPointer) error
// A valueEncoder encodes a single integer in a particular encoding.
type valueEncoder func(o *Buffer, x uint64) error
// Sizers are defined in encode.go
// A sizer returns the encoded size of a field, including its tag and encoder
// type.
type sizer func(prop *Properties, base structPointer) int
// A valueSizer returns the encoded size of a single integer in a particular
// encoding.
type valueSizer func(x uint64) int
// Decoders are defined in decode.go
// A decoder creates a value from its wire representation.
// Unrecognized subelements are saved in unrec.
type decoder func(p *Buffer, prop *Properties, base structPointer) error
// A valueDecoder decodes a single integer in a particular encoding.
type valueDecoder func(o *Buffer) (x uint64, err error)
// A oneofMarshaler does the marshaling for all oneof fields in a message.
type oneofMarshaler func(Message, *Buffer) error
// A oneofUnmarshaler does the unmarshaling for a oneof field in a message.
type oneofUnmarshaler func(Message, int, int, *Buffer) (bool, error)
// A oneofSizer does the sizing for all oneof fields in a message.
type oneofSizer func(Message) int
// tagMap is an optimization over map[int]int for typical protocol buffer
// use-cases. Encoded protocol buffers are often in tag order with small tag
// numbers.
type tagMap struct {
fastTags []int
slowTags map[int]int
}
// tagMapFastLimit is the upper bound on the tag number that will be stored in
// the tagMap slice rather than its map.
const tagMapFastLimit = 1024
func (p *tagMap) get(t int) (int, bool) {
if t > 0 && t < tagMapFastLimit {
if t >= len(p.fastTags) {
return 0, false
}
fi := p.fastTags[t]
return fi, fi >= 0
}
fi, ok := p.slowTags[t]
return fi, ok
}
func (p *tagMap) put(t int, fi int) {
if t > 0 && t < tagMapFastLimit {
for len(p.fastTags) < t+1 {
p.fastTags = append(p.fastTags, -1)
}
p.fastTags[t] = fi
return
}
if p.slowTags == nil {
p.slowTags = make(map[int]int)
}
p.slowTags[t] = fi
}
// StructProperties represents properties for all the fields of a struct.
// decoderTags and decoderOrigNames should only be used by the decoder.
type StructProperties struct {
Prop []*Properties // properties for each field
reqCount int // required count
decoderTags tagMap // map from proto tag to struct field number
decoderOrigNames map[string]int // map from original name to struct field number
order []int // list of struct field numbers in tag order
unrecField field // field id of the XXX_unrecognized []byte field
extendable bool // is this an extendable proto
oneofMarshaler oneofMarshaler
oneofUnmarshaler oneofUnmarshaler
oneofSizer oneofSizer
stype reflect.Type
// OneofTypes contains information about the oneof fields in this message.
// It is keyed by the original name of a field.
OneofTypes map[string]*OneofProperties
}
// OneofProperties represents information about a specific field in a oneof.
type OneofProperties struct {
Type reflect.Type // pointer to generated struct type for this oneof field
Field int // struct field number of the containing oneof in the message
Prop *Properties
}
// Implement the sorting interface so we can sort the fields in tag order, as recommended by the spec.
// See encode.go, (*Buffer).enc_struct.
func (sp *StructProperties) Len() int { return len(sp.order) }
func (sp *StructProperties) Less(i, j int) bool {
return sp.Prop[sp.order[i]].Tag < sp.Prop[sp.order[j]].Tag
}
func (sp *StructProperties) Swap(i, j int) { sp.order[i], sp.order[j] = sp.order[j], sp.order[i] }
// Properties represents the protocol-specific behavior of a single struct field.
type Properties struct {
Name string // name of the field, for error messages
OrigName string // original name before protocol compiler (always set)
JSONName string // name to use for JSON; determined by protoc
Wire string
WireType int
Tag int
Required bool
Optional bool
Repeated bool
Packed bool // relevant for repeated primitives only
Enum string // set for enum types only
proto3 bool // whether this is known to be a proto3 field; set for []byte only
oneof bool // whether this is a oneof field
Default string // default value
HasDefault bool // whether an explicit default was provided
def_uint64 uint64
enc encoder
valEnc valueEncoder // set for bool and numeric types only
field field
tagcode []byte // encoding of EncodeVarint((Tag<<3)|WireType)
tagbuf [8]byte
stype reflect.Type // set for struct types only
sprop *StructProperties // set for struct types only
isMarshaler bool
isUnmarshaler bool
mtype reflect.Type // set for map types only
mkeyprop *Properties // set for map types only
mvalprop *Properties // set for map types only
size sizer
valSize valueSizer // set for bool and numeric types only
dec decoder
valDec valueDecoder // set for bool and numeric types only
// If this is a packable field, this will be the decoder for the packed version of the field.
packedDec decoder
}
// String formats the properties in the protobuf struct field tag style.
func (p *Properties) String() string {
s := p.Wire
s = ","
s += strconv.Itoa(p.Tag)
if p.Required {
s += ",req"
}
if p.Optional {
s += ",opt"
}
if p.Repeated {
s += ",rep"
}
if p.Packed {
s += ",packed"
}
s += ",name=" + p.OrigName
if p.JSONName != p.OrigName {
s += ",json=" + p.JSONName
}
if p.proto3 {
s += ",proto3"
}
if p.oneof {
s += ",oneof"
}
if len(p.Enum) > 0 {
s += ",enum=" + p.Enum
}
if p.HasDefault {
s += ",def=" + p.Default
}
return s
}
// Parse populates p by parsing a string in the protobuf struct field tag style.
func (p *Properties) Parse(s string) {
// "bytes,49,opt,name=foo,def=hello!"
fields := strings.Split(s, ",") // breaks def=, but handled below.
if len(fields) < 2 {
fmt.Fprintf(os.Stderr, "proto: tag has too few fields: %q\n", s)
return
}
p.Wire = fields[0]
switch p.Wire {
case "varint":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeVarint
p.valDec = (*Buffer).DecodeVarint
p.valSize = sizeVarint
case "fixed32":
p.WireType = WireFixed32
p.valEnc = (*Buffer).EncodeFixed32
p.valDec = (*Buffer).DecodeFixed32
p.valSize = sizeFixed32
case "fixed64":
p.WireType = WireFixed64
p.valEnc = (*Buffer).EncodeFixed64
p.valDec = (*Buffer).DecodeFixed64
p.valSize = sizeFixed64
case "zigzag32":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeZigzag32
p.valDec = (*Buffer).DecodeZigzag32
p.valSize = sizeZigzag32
case "zigzag64":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeZigzag64
p.valDec = (*Buffer).DecodeZigzag64
p.valSize = sizeZigzag64
case "bytes", "group":
p.WireType = WireBytes
// no numeric converter for non-numeric types
default:
fmt.Fprintf(os.Stderr, "proto: tag has unknown wire type: %q\n", s)
return
}
var err error
p.Tag, err = strconv.Atoi(fields[1])
if err != nil {
return
}
for i := 2; i < len(fields); i++ {
f := fields[i]
switch {
case f == "req":
p.Required = true
case f == "opt":
p.Optional = true
case f == "rep":
p.Repeated = true
case f == "packed":
p.Packed = true
case strings.HasPrefix(f, "name="):
p.OrigName = f[5:]
case strings.HasPrefix(f, "json="):
p.JSONName = f[5:]
case strings.HasPrefix(f, "enum="):
p.Enum = f[5:]
case f == "proto3":
p.proto3 = true
case f == "oneof":
p.oneof = true
case strings.HasPrefix(f, "def="):
p.HasDefault = true
p.Default = f[4:] // rest of string
if i+1 < len(fields) {
// Commas aren't escaped, and def is always last.
p.Default += "," + strings.Join(fields[i+1:], ",")
break
}
}
}
}
func logNoSliceEnc(t1, t2 reflect.Type) {
fmt.Fprintf(os.Stderr, "proto: no slice oenc for %T = []%T\n", t1, t2)
}
var protoMessageType = reflect.TypeOf((*Message)(nil)).Elem()
// Initialize the fields for encoding and decoding.
func (p *Properties) setEncAndDec(typ reflect.Type, f *reflect.StructField, lockGetProp bool) {
p.enc = nil
p.dec = nil
p.size = nil
switch t1 := typ; t1.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no coders for %v\n", t1)
// proto3 scalar types
case reflect.Bool:
p.enc = (*Buffer).enc_proto3_bool
p.dec = (*Buffer).dec_proto3_bool
p.size = size_proto3_bool
case reflect.Int32:
p.enc = (*Buffer).enc_proto3_int32
p.dec = (*Buffer).dec_proto3_int32
p.size = size_proto3_int32
case reflect.Uint32:
p.enc = (*Buffer).enc_proto3_uint32
p.dec = (*Buffer).dec_proto3_int32 // can reuse
p.size = size_proto3_uint32
case reflect.Int64, reflect.Uint64:
p.enc = (*Buffer).enc_proto3_int64
p.dec = (*Buffer).dec_proto3_int64
p.size = size_proto3_int64
case reflect.Float32:
p.enc = (*Buffer).enc_proto3_uint32 // can just treat them as bits
p.dec = (*Buffer).dec_proto3_int32
p.size = size_proto3_uint32
case reflect.Float64:
p.enc = (*Buffer).enc_proto3_int64 // can just treat them as bits
p.dec = (*Buffer).dec_proto3_int64
p.size = size_proto3_int64
case reflect.String:
p.enc = (*Buffer).enc_proto3_string
p.dec = (*Buffer).dec_proto3_string
p.size = size_proto3_string
case reflect.Ptr:
switch t2 := t1.Elem(); t2.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no encoder function for %v -> %v\n", t1, t2)
break
case reflect.Bool:
p.enc = (*Buffer).enc_bool
p.dec = (*Buffer).dec_bool
p.size = size_bool
case reflect.Int32:
p.enc = (*Buffer).enc_int32
p.dec = (*Buffer).dec_int32
p.size = size_int32
case reflect.Uint32:
p.enc = (*Buffer).enc_uint32
p.dec = (*Buffer).dec_int32 // can reuse
p.size = size_uint32
case reflect.Int64, reflect.Uint64:
p.enc = (*Buffer).enc_int64
p.dec = (*Buffer).dec_int64
p.size = size_int64
case reflect.Float32:
p.enc = (*Buffer).enc_uint32 // can just treat them as bits
p.dec = (*Buffer).dec_int32
p.size = size_uint32
case reflect.Float64:
p.enc = (*Buffer).enc_int64 // can just treat them as bits
p.dec = (*Buffer).dec_int64
p.size = size_int64
case reflect.String:
p.enc = (*Buffer).enc_string
p.dec = (*Buffer).dec_string
p.size = size_string
case reflect.Struct:
p.stype = t1.Elem()
p.isMarshaler = isMarshaler(t1)
p.isUnmarshaler = isUnmarshaler(t1)
if p.Wire == "bytes" {
p.enc = (*Buffer).enc_struct_message
p.dec = (*Buffer).dec_struct_message
p.size = size_struct_message
} else {
p.enc = (*Buffer).enc_struct_group
p.dec = (*Buffer).dec_struct_group
p.size = size_struct_group
}
}
case reflect.Slice:
switch t2 := t1.Elem(); t2.Kind() {
default:
logNoSliceEnc(t1, t2)
break
case reflect.Bool:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_bool
p.size = size_slice_packed_bool
} else {
p.enc = (*Buffer).enc_slice_bool
p.size = size_slice_bool
}
p.dec = (*Buffer).dec_slice_bool
p.packedDec = (*Buffer).dec_slice_packed_bool
case reflect.Int32:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int32
p.size = size_slice_packed_int32
} else {
p.enc = (*Buffer).enc_slice_int32
p.size = size_slice_int32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case reflect.Uint32:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_uint32
p.size = size_slice_packed_uint32
} else {
p.enc = (*Buffer).enc_slice_uint32
p.size = size_slice_uint32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case reflect.Int64, reflect.Uint64:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int64
p.size = size_slice_packed_int64
} else {
p.enc = (*Buffer).enc_slice_int64
p.size = size_slice_int64
}
p.dec = (*Buffer).dec_slice_int64
p.packedDec = (*Buffer).dec_slice_packed_int64
case reflect.Uint8:
p.dec = (*Buffer).dec_slice_byte
if p.proto3 {
p.enc = (*Buffer).enc_proto3_slice_byte
p.size = size_proto3_slice_byte
} else {
p.enc = (*Buffer).enc_slice_byte
p.size = size_slice_byte
}
case reflect.Float32, reflect.Float64:
switch t2.Bits() {
case 32:
// can just treat them as bits
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_uint32
p.size = size_slice_packed_uint32
} else {
p.enc = (*Buffer).enc_slice_uint32
p.size = size_slice_uint32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case 64:
// can just treat them as bits
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int64
p.size = size_slice_packed_int64
} else {
p.enc = (*Buffer).enc_slice_int64
p.size = size_slice_int64
}
p.dec = (*Buffer).dec_slice_int64
p.packedDec = (*Buffer).dec_slice_packed_int64
default:
logNoSliceEnc(t1, t2)
break
}
case reflect.String:
p.enc = (*Buffer).enc_slice_string
p.dec = (*Buffer).dec_slice_string
p.size = size_slice_string
case reflect.Ptr:
switch t3 := t2.Elem(); t3.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no ptr oenc for %T -> %T -> %T\n", t1, t2, t3)
break
case reflect.Struct:
p.stype = t2.Elem()
p.isMarshaler = isMarshaler(t2)
p.isUnmarshaler = isUnmarshaler(t2)
if p.Wire == "bytes" {
p.enc = (*Buffer).enc_slice_struct_message
p.dec = (*Buffer).dec_slice_struct_message
p.size = size_slice_struct_message
} else {
p.enc = (*Buffer).enc_slice_struct_group
p.dec = (*Buffer).dec_slice_struct_group
p.size = size_slice_struct_group
}
}
case reflect.Slice:
switch t2.Elem().Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no slice elem oenc for %T -> %T -> %T\n", t1, t2, t2.Elem())
break
case reflect.Uint8:
p.enc = (*Buffer).enc_slice_slice_byte
p.dec = (*Buffer).dec_slice_slice_byte
p.size = size_slice_slice_byte
}
}
case reflect.Map:
p.enc = (*Buffer).enc_new_map
p.dec = (*Buffer).dec_new_map
p.size = size_new_map
p.mtype = t1
p.mkeyprop = &Properties{}
p.mkeyprop.init(reflect.PtrTo(p.mtype.Key()), "Key", f.Tag.Get("protobuf_key"), nil, lockGetProp)
p.mvalprop = &Properties{}
vtype := p.mtype.Elem()
if vtype.Kind() != reflect.Ptr && vtype.Kind() != reflect.Slice {
// The value type is not a message (*T) or bytes ([]byte),
// so we need encoders for the pointer to this type.
vtype = reflect.PtrTo(vtype)
}
p.mvalprop.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp)
}
// precalculate tag code
wire := p.WireType
if p.Packed {
wire = WireBytes
}
x := uint32(p.Tag)<<3 | uint32(wire)
i := 0
for i = 0; x > 127; i++ {
p.tagbuf[i] = 0x80 | uint8(x&0x7F)
x >>= 7
}
p.tagbuf[i] = uint8(x)
p.tagcode = p.tagbuf[0 : i+1]
if p.stype != nil {
if lockGetProp {
p.sprop = GetProperties(p.stype)
} else {
p.sprop = getPropertiesLocked(p.stype)
}
}
}
var (
marshalerType = reflect.TypeOf((*Marshaler)(nil)).Elem()
unmarshalerType = reflect.TypeOf((*Unmarshaler)(nil)).Elem()
)
// isMarshaler reports whether type t implements Marshaler.
func isMarshaler(t reflect.Type) bool {
// We're checking for (likely) pointer-receiver methods
// so if t is not a pointer, something is very wrong.
// The calls above only invoke isMarshaler on pointer types.
if t.Kind() != reflect.Ptr {
panic("proto: misuse of isMarshaler")
}
return t.Implements(marshalerType)
}
// isUnmarshaler reports whether type t implements Unmarshaler.
func isUnmarshaler(t reflect.Type) bool {
// We're checking for (likely) pointer-receiver methods
// so if t is not a pointer, something is very wrong.
// The calls above only invoke isUnmarshaler on pointer types.
if t.Kind() != reflect.Ptr {
panic("proto: misuse of isUnmarshaler")
}
return t.Implements(unmarshalerType)
}
// Init populates the properties from a protocol buffer struct tag.
func (p *Properties) Init(typ reflect.Type, name, tag string, f *reflect.StructField) {
p.init(typ, name, tag, f, true)
}
func (p *Properties) init(typ reflect.Type, name, tag string, f *reflect.StructField, lockGetProp bool) {
// "bytes,49,opt,def=hello!"
p.Name = name
p.OrigName = name
if f != nil {
p.field = toField(f)
}
if tag == "" {
return
}
p.Parse(tag)
p.setEncAndDec(typ, f, lockGetProp)
}
var (
propertiesMu sync.RWMutex
propertiesMap = make(map[reflect.Type]*StructProperties)
)
// GetProperties returns the list of properties for the type represented by t.
// t must represent a generated struct type of a protocol message.
func GetProperties(t reflect.Type) *StructProperties {
if t.Kind() != reflect.Struct {
panic("proto: type must have kind struct")
}
// Most calls to GetProperties in a long-running program will be
// retrieving details for types we have seen before.
propertiesMu.RLock()
sprop, ok := propertiesMap[t]
propertiesMu.RUnlock()
if ok {
if collectStats {
stats.Chit++
}
return sprop
}
propertiesMu.Lock()
sprop = getPropertiesLocked(t)
propertiesMu.Unlock()
return sprop
}
// getPropertiesLocked requires that propertiesMu is held.
func getPropertiesLocked(t reflect.Type) *StructProperties {
if prop, ok := propertiesMap[t]; ok {
if collectStats {
stats.Chit++
}
return prop
}
if collectStats {
stats.Cmiss++
}
prop := new(StructProperties)
// in case of recursive protos, fill this in now.
propertiesMap[t] = prop
// build properties
prop.extendable = reflect.PtrTo(t).Implements(extendableProtoType) ||
reflect.PtrTo(t).Implements(extendableProtoV1Type)
prop.unrecField = invalidField
prop.Prop = make([]*Properties, t.NumField())
prop.order = make([]int, t.NumField())
for i := 0; i < t.NumField(); i++ {
f := t.Field(i)
p := new(Properties)
name := f.Name
p.init(f.Type, name, f.Tag.Get("protobuf"), &f, false)
if f.Name == "XXX_InternalExtensions" { // special case
p.enc = (*Buffer).enc_exts
p.dec = nil // not needed
p.size = size_exts
} else if f.Name == "XXX_extensions" { // special case
p.enc = (*Buffer).enc_map
p.dec = nil // not needed
p.size = size_map
} else if f.Name == "XXX_unrecognized" { // special case
prop.unrecField = toField(&f)
}
oneof := f.Tag.Get("protobuf_oneof") // special case
if oneof != "" {
// Oneof fields don't use the traditional protobuf tag.
p.OrigName = oneof
}
prop.Prop[i] = p
prop.order[i] = i
if debug {
print(i, " ", f.Name, " ", t.String(), " ")
if p.Tag > 0 {
print(p.String())
}
print("\n")
}
if p.enc == nil && !strings.HasPrefix(f.Name, "XXX_") && oneof == "" {
fmt.Fprintln(os.Stderr, "proto: no encoder for", f.Name, f.Type.String(), "[GetProperties]")
}
}
// Re-order prop.order.
sort.Sort(prop)
type oneofMessage interface {
XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{})
}
if om, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); ok {
var oots []interface{}
prop.oneofMarshaler, prop.oneofUnmarshaler, prop.oneofSizer, oots = om.XXX_OneofFuncs()
prop.stype = t
// Interpret oneof metadata.
prop.OneofTypes = make(map[string]*OneofProperties)
for _, oot := range oots {
oop := &OneofProperties{
Type: reflect.ValueOf(oot).Type(), // *T
Prop: new(Properties),
}
sft := oop.Type.Elem().Field(0)
oop.Prop.Name = sft.Name
oop.Prop.Parse(sft.Tag.Get("protobuf"))
// There will be exactly one interface field that
// this new value is assignable to.
for i := 0; i < t.NumField(); i++ {
f := t.Field(i)
if f.Type.Kind() != reflect.Interface {
continue
}
if !oop.Type.AssignableTo(f.Type) {
continue
}
oop.Field = i
break
}
prop.OneofTypes[oop.Prop.OrigName] = oop
}
}
// build required counts
// build tags
reqCount := 0
prop.decoderOrigNames = make(map[string]int)
for i, p := range prop.Prop {
if strings.HasPrefix(p.Name, "XXX_") {
// Internal fields should not appear in tags/origNames maps.
// They are handled specially when encoding and decoding.
continue
}
if p.Required {
reqCount++
}
prop.decoderTags.put(p.Tag, i)
prop.decoderOrigNames[p.OrigName] = i
}
prop.reqCount = reqCount
return prop
}
// Return the Properties object for the x[0]'th field of the structure.
func propByIndex(t reflect.Type, x []int) *Properties {
if len(x) != 1 {
fmt.Fprintf(os.Stderr, "proto: field index dimension %d (not 1) for type %s\n", len(x), t)
return nil
}
prop := GetProperties(t)
return prop.Prop[x[0]]
}
// Get the address and type of a pointer to a struct from an interface.
func getbase(pb Message) (t reflect.Type, b structPointer, err error) {
if pb == nil {
err = ErrNil
return
}
// get the reflect type of the pointer to the struct.
t = reflect.TypeOf(pb)
// get the address of the struct.
value := reflect.ValueOf(pb)
b = toStructPointer(value)
return
}
// A global registry of enum types.
// The generated code will register the generated maps by calling RegisterEnum.
var enumValueMaps = make(map[string]map[string]int32)
// RegisterEnum is called from the generated code to install the enum descriptor
// maps into the global table to aid parsing text format protocol buffers.
func RegisterEnum(typeName string, unusedNameMap map[int32]string, valueMap map[string]int32) {
if _, ok := enumValueMaps[typeName]; ok {
panic("proto: duplicate enum registered: " + typeName)
}
enumValueMaps[typeName] = valueMap
}
// EnumValueMap returns the mapping from names to integers of the
// enum type enumType, or a nil if not found.
func EnumValueMap(enumType string) map[string]int32 {
return enumValueMaps[enumType]
}
// A registry of all linked message types.
// The string is a fully-qualified proto name ("pkg.Message").
var (
protoTypes = make(map[string]reflect.Type)
revProtoTypes = make(map[reflect.Type]string)
)
// RegisterType is called from generated code and maps from the fully qualified
// proto name to the type (pointer to struct) of the protocol buffer.
func RegisterType(x Message, name string) {
if _, ok := protoTypes[name]; ok {
// TODO: Some day, make this a panic.
log.Printf("proto: duplicate proto type registered: %s", name)
return
}
t := reflect.TypeOf(x)
protoTypes[name] = t
revProtoTypes[t] = name
}
// MessageName returns the fully-qualified proto name for the given message type.
func MessageName(x Message) string { return revProtoTypes[reflect.TypeOf(x)] }
// MessageType returns the message type (pointer to struct) for a named message.
func MessageType(name string) reflect.Type { return protoTypes[name] }
// A registry of all linked proto files.
var (
protoFiles = make(map[string][]byte) // file name => fileDescriptor
)
// RegisterFile is called from generated code and maps from the
// full file name of a .proto file to its compressed FileDescriptorProto.
func RegisterFile(filename string, fileDescriptor []byte) {
protoFiles[filename] = fileDescriptor
}
// FileDescriptor returns the compressed FileDescriptorProto for a .proto file.
func FileDescriptor(filename string) []byte { return protoFiles[filename] }

854
vendor/github.com/golang/protobuf/proto/text.go generated vendored
View File

@ -1,854 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
// Functions for writing the text protocol buffer format.
import (
"bufio"
"bytes"
"encoding"
"errors"
"fmt"
"io"
"log"
"math"
"reflect"
"sort"
"strings"
)
var (
newline = []byte("\n")
spaces = []byte(" ")
gtNewline = []byte(">\n")
endBraceNewline = []byte("}\n")
backslashN = []byte{'\\', 'n'}
backslashR = []byte{'\\', 'r'}
backslashT = []byte{'\\', 't'}
backslashDQ = []byte{'\\', '"'}
backslashBS = []byte{'\\', '\\'}
posInf = []byte("inf")
negInf = []byte("-inf")
nan = []byte("nan")
)
type writer interface {
io.Writer
WriteByte(byte) error
}
// textWriter is an io.Writer that tracks its indentation level.
type textWriter struct {
ind int
complete bool // if the current position is a complete line
compact bool // whether to write out as a one-liner
w writer
}
func (w *textWriter) WriteString(s string) (n int, err error) {
if !strings.Contains(s, "\n") {
if !w.compact && w.complete {
w.writeIndent()
}
w.complete = false
return io.WriteString(w.w, s)
}
// WriteString is typically called without newlines, so this
// codepath and its copy are rare. We copy to avoid
// duplicating all of Write's logic here.
return w.Write([]byte(s))
}
func (w *textWriter) Write(p []byte) (n int, err error) {
newlines := bytes.Count(p, newline)
if newlines == 0 {
if !w.compact && w.complete {
w.writeIndent()
}
n, err = w.w.Write(p)
w.complete = false
return n, err
}
frags := bytes.SplitN(p, newline, newlines+1)
if w.compact {
for i, frag := range frags {
if i > 0 {
if err := w.w.WriteByte(' '); err != nil {
return n, err
}
n++
}
nn, err := w.w.Write(frag)
n += nn
if err != nil {
return n, err
}
}
return n, nil
}
for i, frag := range frags {
if w.complete {
w.writeIndent()
}
nn, err := w.w.Write(frag)
n += nn
if err != nil {
return n, err
}
if i+1 < len(frags) {
if err := w.w.WriteByte('\n'); err != nil {
return n, err
}
n++
}
}
w.complete = len(frags[len(frags)-1]) == 0
return n, nil
}
func (w *textWriter) WriteByte(c byte) error {
if w.compact && c == '\n' {
c = ' '
}
if !w.compact && w.complete {
w.writeIndent()
}
err := w.w.WriteByte(c)
w.complete = c == '\n'
return err
}
func (w *textWriter) indent() { w.ind++ }
func (w *textWriter) unindent() {
if w.ind == 0 {
log.Print("proto: textWriter unindented too far")
return
}
w.ind--
}
func writeName(w *textWriter, props *Properties) error {
if _, err := w.WriteString(props.OrigName); err != nil {
return err
}
if props.Wire != "group" {
return w.WriteByte(':')
}
return nil
}
// raw is the interface satisfied by RawMessage.
type raw interface {
Bytes() []byte
}
func requiresQuotes(u string) bool {
// When type URL contains any characters except [0-9A-Za-z./\-]*, it must be quoted.
for _, ch := range u {
switch {
case ch == '.' || ch == '/' || ch == '_':
continue
case '0' <= ch && ch <= '9':
continue
case 'A' <= ch && ch <= 'Z':
continue
case 'a' <= ch && ch <= 'z':
continue
default:
return true
}
}
return false
}
// isAny reports whether sv is a google.protobuf.Any message
func isAny(sv reflect.Value) bool {
type wkt interface {
XXX_WellKnownType() string
}
t, ok := sv.Addr().Interface().(wkt)
return ok && t.XXX_WellKnownType() == "Any"
}
// writeProto3Any writes an expanded google.protobuf.Any message.
//
// It returns (false, nil) if sv value can't be unmarshaled (e.g. because
// required messages are not linked in).
//
// It returns (true, error) when sv was written in expanded format or an error
// was encountered.
func (tm *TextMarshaler) writeProto3Any(w *textWriter, sv reflect.Value) (bool, error) {
turl := sv.FieldByName("TypeUrl")
val := sv.FieldByName("Value")
if !turl.IsValid() || !val.IsValid() {
return true, errors.New("proto: invalid google.protobuf.Any message")
}
b, ok := val.Interface().([]byte)
if !ok {
return true, errors.New("proto: invalid google.protobuf.Any message")
}
parts := strings.Split(turl.String(), "/")
mt := MessageType(parts[len(parts)-1])
if mt == nil {
return false, nil
}
m := reflect.New(mt.Elem())
if err := Unmarshal(b, m.Interface().(Message)); err != nil {
return false, nil
}
w.Write([]byte("["))
u := turl.String()
if requiresQuotes(u) {
writeString(w, u)
} else {
w.Write([]byte(u))
}
if w.compact {
w.Write([]byte("]:<"))
} else {
w.Write([]byte("]: <\n"))
w.ind++
}
if err := tm.writeStruct(w, m.Elem()); err != nil {
return true, err
}
if w.compact {
w.Write([]byte("> "))
} else {
w.ind--
w.Write([]byte(">\n"))
}
return true, nil
}
func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
if tm.ExpandAny && isAny(sv) {
if canExpand, err := tm.writeProto3Any(w, sv); canExpand {
return err
}
}
st := sv.Type()
sprops := GetProperties(st)
for i := 0; i < sv.NumField(); i++ {
fv := sv.Field(i)
props := sprops.Prop[i]
name := st.Field(i).Name
if strings.HasPrefix(name, "XXX_") {
// There are two XXX_ fields:
// XXX_unrecognized []byte
// XXX_extensions map[int32]proto.Extension
// The first is handled here;
// the second is handled at the bottom of this function.
if name == "XXX_unrecognized" && !fv.IsNil() {
if err := writeUnknownStruct(w, fv.Interface().([]byte)); err != nil {
return err
}
}
continue
}
if fv.Kind() == reflect.Ptr && fv.IsNil() {
// Field not filled in. This could be an optional field or
// a required field that wasn't filled in. Either way, there
// isn't anything we can show for it.
continue
}
if fv.Kind() == reflect.Slice && fv.IsNil() {
// Repeated field that is empty, or a bytes field that is unused.
continue
}
if props.Repeated && fv.Kind() == reflect.Slice {
// Repeated field.
for j := 0; j < fv.Len(); j++ {
if err := writeName(w, props); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
v := fv.Index(j)
if v.Kind() == reflect.Ptr && v.IsNil() {
// A nil message in a repeated field is not valid,
// but we can handle that more gracefully than panicking.
if _, err := w.Write([]byte("<nil>\n")); err != nil {
return err
}
continue
}
if err := tm.writeAny(w, v, props); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
continue
}
if fv.Kind() == reflect.Map {
// Map fields are rendered as a repeated struct with key/value fields.
keys := fv.MapKeys()
sort.Sort(mapKeys(keys))
for _, key := range keys {
val := fv.MapIndex(key)
if err := writeName(w, props); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
// open struct
if err := w.WriteByte('<'); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte('\n'); err != nil {
return err
}
}
w.indent()
// key
if _, err := w.WriteString("key:"); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if err := tm.writeAny(w, key, props.mkeyprop); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
// nil values aren't legal, but we can avoid panicking because of them.
if val.Kind() != reflect.Ptr || !val.IsNil() {
// value
if _, err := w.WriteString("value:"); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if err := tm.writeAny(w, val, props.mvalprop); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
// close struct
w.unindent()
if err := w.WriteByte('>'); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
continue
}
if props.proto3 && fv.Kind() == reflect.Slice && fv.Len() == 0 {
// empty bytes field
continue
}
if fv.Kind() != reflect.Ptr && fv.Kind() != reflect.Slice {
// proto3 non-repeated scalar field; skip if zero value
if isProto3Zero(fv) {
continue
}
}
if fv.Kind() == reflect.Interface {
// Check if it is a oneof.
if st.Field(i).Tag.Get("protobuf_oneof") != "" {
// fv is nil, or holds a pointer to generated struct.
// That generated struct has exactly one field,
// which has a protobuf struct tag.
if fv.IsNil() {
continue
}
inner := fv.Elem().Elem() // interface -> *T -> T
tag := inner.Type().Field(0).Tag.Get("protobuf")
props = new(Properties) // Overwrite the outer props var, but not its pointee.
props.Parse(tag)
// Write the value in the oneof, not the oneof itself.
fv = inner.Field(0)
// Special case to cope with malformed messages gracefully:
// If the value in the oneof is a nil pointer, don't panic
// in writeAny.
if fv.Kind() == reflect.Ptr && fv.IsNil() {
// Use errors.New so writeAny won't render quotes.
msg := errors.New("/* nil */")
fv = reflect.ValueOf(&msg).Elem()
}
}
}
if err := writeName(w, props); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if b, ok := fv.Interface().(raw); ok {
if err := writeRaw(w, b.Bytes()); err != nil {
return err
}
continue
}
// Enums have a String method, so writeAny will work fine.
if err := tm.writeAny(w, fv, props); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
// Extensions (the XXX_extensions field).
pv := sv.Addr()
if _, ok := extendable(pv.Interface()); ok {
if err := tm.writeExtensions(w, pv); err != nil {
return err
}
}
return nil
}
// writeRaw writes an uninterpreted raw message.
func writeRaw(w *textWriter, b []byte) error {
if err := w.WriteByte('<'); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte('\n'); err != nil {
return err
}
}
w.indent()
if err := writeUnknownStruct(w, b); err != nil {
return err
}
w.unindent()
if err := w.WriteByte('>'); err != nil {
return err
}
return nil
}
// writeAny writes an arbitrary field.
func (tm *TextMarshaler) writeAny(w *textWriter, v reflect.Value, props *Properties) error {
v = reflect.Indirect(v)
// Floats have special cases.
if v.Kind() == reflect.Float32 || v.Kind() == reflect.Float64 {
x := v.Float()
var b []byte
switch {
case math.IsInf(x, 1):
b = posInf
case math.IsInf(x, -1):
b = negInf
case math.IsNaN(x):
b = nan
}
if b != nil {
_, err := w.Write(b)
return err
}
// Other values are handled below.
}
// We don't attempt to serialise every possible value type; only those
// that can occur in protocol buffers.
switch v.Kind() {
case reflect.Slice:
// Should only be a []byte; repeated fields are handled in writeStruct.
if err := writeString(w, string(v.Bytes())); err != nil {
return err
}
case reflect.String:
if err := writeString(w, v.String()); err != nil {
return err
}
case reflect.Struct:
// Required/optional group/message.
var bra, ket byte = '<', '>'
if props != nil && props.Wire == "group" {
bra, ket = '{', '}'
}
if err := w.WriteByte(bra); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte('\n'); err != nil {
return err
}
}
w.indent()
if etm, ok := v.Interface().(encoding.TextMarshaler); ok {
text, err := etm.MarshalText()
if err != nil {
return err
}
if _, err = w.Write(text); err != nil {
return err
}
} else if err := tm.writeStruct(w, v); err != nil {
return err
}
w.unindent()
if err := w.WriteByte(ket); err != nil {
return err
}
default:
_, err := fmt.Fprint(w, v.Interface())
return err
}
return nil
}
// equivalent to C's isprint.
func isprint(c byte) bool {
return c >= 0x20 && c < 0x7f
}
// writeString writes a string in the protocol buffer text format.
// It is similar to strconv.Quote except we don't use Go escape sequences,
// we treat the string as a byte sequence, and we use octal escapes.
// These differences are to maintain interoperability with the other
// languages' implementations of the text format.
func writeString(w *textWriter, s string) error {
// use WriteByte here to get any needed indent
if err := w.WriteByte('"'); err != nil {
return err
}
// Loop over the bytes, not the runes.
for i := 0; i < len(s); i++ {
var err error
// Divergence from C++: we don't escape apostrophes.
// There's no need to escape them, and the C++ parser
// copes with a naked apostrophe.
switch c := s[i]; c {
case '\n':
_, err = w.w.Write(backslashN)
case '\r':
_, err = w.w.Write(backslashR)
case '\t':
_, err = w.w.Write(backslashT)
case '"':
_, err = w.w.Write(backslashDQ)
case '\\':
_, err = w.w.Write(backslashBS)
default:
if isprint(c) {
err = w.w.WriteByte(c)
} else {
_, err = fmt.Fprintf(w.w, "\\%03o", c)
}
}
if err != nil {
return err
}
}
return w.WriteByte('"')
}
func writeUnknownStruct(w *textWriter, data []byte) (err error) {
if !w.compact {
if _, err := fmt.Fprintf(w, "/* %d unknown bytes */\n", len(data)); err != nil {
return err
}
}
b := NewBuffer(data)
for b.index < len(b.buf) {
x, err := b.DecodeVarint()
if err != nil {
_, err := fmt.Fprintf(w, "/* %v */\n", err)
return err
}
wire, tag := x&7, x>>3
if wire == WireEndGroup {
w.unindent()
if _, err := w.Write(endBraceNewline); err != nil {
return err
}
continue
}
if _, err := fmt.Fprint(w, tag); err != nil {
return err
}
if wire != WireStartGroup {
if err := w.WriteByte(':'); err != nil {
return err
}
}
if !w.compact || wire == WireStartGroup {
if err := w.WriteByte(' '); err != nil {
return err
}
}
switch wire {
case WireBytes:
buf, e := b.DecodeRawBytes(false)
if e == nil {
_, err = fmt.Fprintf(w, "%q", buf)
} else {
_, err = fmt.Fprintf(w, "/* %v */", e)
}
case WireFixed32:
x, err = b.DecodeFixed32()
err = writeUnknownInt(w, x, err)
case WireFixed64:
x, err = b.DecodeFixed64()
err = writeUnknownInt(w, x, err)
case WireStartGroup:
err = w.WriteByte('{')
w.indent()
case WireVarint:
x, err = b.DecodeVarint()
err = writeUnknownInt(w, x, err)
default:
_, err = fmt.Fprintf(w, "/* unknown wire type %d */", wire)
}
if err != nil {
return err
}
if err = w.WriteByte('\n'); err != nil {
return err
}
}
return nil
}
func writeUnknownInt(w *textWriter, x uint64, err error) error {
if err == nil {
_, err = fmt.Fprint(w, x)
} else {
_, err = fmt.Fprintf(w, "/* %v */", err)
}
return err
}
type int32Slice []int32
func (s int32Slice) Len() int { return len(s) }
func (s int32Slice) Less(i, j int) bool { return s[i] < s[j] }
func (s int32Slice) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
// writeExtensions writes all the extensions in pv.
// pv is assumed to be a pointer to a protocol message struct that is extendable.
func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error {
emap := extensionMaps[pv.Type().Elem()]
ep, _ := extendable(pv.Interface())
// Order the extensions by ID.
// This isn't strictly necessary, but it will give us
// canonical output, which will also make testing easier.
m, mu := ep.extensionsRead()
if m == nil {
return nil
}
mu.Lock()
ids := make([]int32, 0, len(m))
for id := range m {
ids = append(ids, id)
}
sort.Sort(int32Slice(ids))
mu.Unlock()
for _, extNum := range ids {
ext := m[extNum]
var desc *ExtensionDesc
if emap != nil {
desc = emap[extNum]
}
if desc == nil {
// Unknown extension.
if err := writeUnknownStruct(w, ext.enc); err != nil {
return err
}
continue
}
pb, err := GetExtension(ep, desc)
if err != nil {
return fmt.Errorf("failed getting extension: %v", err)
}
// Repeated extensions will appear as a slice.
if !desc.repeated() {
if err := tm.writeExtension(w, desc.Name, pb); err != nil {
return err
}
} else {
v := reflect.ValueOf(pb)
for i := 0; i < v.Len(); i++ {
if err := tm.writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil {
return err
}
}
}
}
return nil
}
func (tm *TextMarshaler) writeExtension(w *textWriter, name string, pb interface{}) error {
if _, err := fmt.Fprintf(w, "[%s]:", name); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if err := tm.writeAny(w, reflect.ValueOf(pb), nil); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
return nil
}
func (w *textWriter) writeIndent() {
if !w.complete {
return
}
remain := w.ind * 2
for remain > 0 {
n := remain
if n > len(spaces) {
n = len(spaces)
}
w.w.Write(spaces[:n])
remain -= n
}
w.complete = false
}
// TextMarshaler is a configurable text format marshaler.
type TextMarshaler struct {
Compact bool // use compact text format (one line).
ExpandAny bool // expand google.protobuf.Any messages of known types
}
// Marshal writes a given protocol buffer in text format.
// The only errors returned are from w.
func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
val := reflect.ValueOf(pb)
if pb == nil || val.IsNil() {
w.Write([]byte("<nil>"))
return nil
}
var bw *bufio.Writer
ww, ok := w.(writer)
if !ok {
bw = bufio.NewWriter(w)
ww = bw
}
aw := &textWriter{
w: ww,
complete: true,
compact: tm.Compact,
}
if etm, ok := pb.(encoding.TextMarshaler); ok {
text, err := etm.MarshalText()
if err != nil {
return err
}
if _, err = aw.Write(text); err != nil {
return err
}
if bw != nil {
return bw.Flush()
}
return nil
}
// Dereference the received pointer so we don't have outer < and >.
v := reflect.Indirect(val)
if err := tm.writeStruct(aw, v); err != nil {
return err
}
if bw != nil {
return bw.Flush()
}
return nil
}
// Text is the same as Marshal, but returns the string directly.
func (tm *TextMarshaler) Text(pb Message) string {
var buf bytes.Buffer
tm.Marshal(&buf, pb)
return buf.String()
}
var (
defaultTextMarshaler = TextMarshaler{}
compactTextMarshaler = TextMarshaler{Compact: true}
)
// TODO: consider removing some of the Marshal functions below.
// MarshalText writes a given protocol buffer in text format.
// The only errors returned are from w.
func MarshalText(w io.Writer, pb Message) error { return defaultTextMarshaler.Marshal(w, pb) }
// MarshalTextString is the same as MarshalText, but returns the string directly.
func MarshalTextString(pb Message) string { return defaultTextMarshaler.Text(pb) }
// CompactText writes a given protocol buffer in compact text format (one line).
func CompactText(w io.Writer, pb Message) error { return compactTextMarshaler.Marshal(w, pb) }
// CompactTextString is the same as CompactText, but returns the string directly.
func CompactTextString(pb Message) string { return compactTextMarshaler.Text(pb) }

880
vendor/github.com/golang/protobuf/proto/text_parser.go generated vendored
View File

@ -1,880 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
// Functions for parsing the Text protocol buffer format.
// TODO: message sets.
import (
"encoding"
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"unicode/utf8"
)
type ParseError struct {
Message string
Line int // 1-based line number
Offset int // 0-based byte offset from start of input
}
func (p *ParseError) Error() string {
if p.Line == 1 {
// show offset only for first line
return fmt.Sprintf("line 1.%d: %v", p.Offset, p.Message)
}
return fmt.Sprintf("line %d: %v", p.Line, p.Message)
}
type token struct {
value string
err *ParseError
line int // line number
offset int // byte number from start of input, not start of line
unquoted string // the unquoted version of value, if it was a quoted string
}
func (t *token) String() string {
if t.err == nil {
return fmt.Sprintf("%q (line=%d, offset=%d)", t.value, t.line, t.offset)
}
return fmt.Sprintf("parse error: %v", t.err)
}
type textParser struct {
s string // remaining input
done bool // whether the parsing is finished (success or error)
backed bool // whether back() was called
offset, line int
cur token
}
func newTextParser(s string) *textParser {
p := new(textParser)
p.s = s
p.line = 1
p.cur.line = 1
return p
}
func (p *textParser) errorf(format string, a ...interface{}) *ParseError {
pe := &ParseError{fmt.Sprintf(format, a...), p.cur.line, p.cur.offset}
p.cur.err = pe
p.done = true
return pe
}
// Numbers and identifiers are matched by [-+._A-Za-z0-9]
func isIdentOrNumberChar(c byte) bool {
switch {
case 'A' <= c && c <= 'Z', 'a' <= c && c <= 'z':
return true
case '0' <= c && c <= '9':
return true
}
switch c {
case '-', '+', '.', '_':
return true
}
return false
}
func isWhitespace(c byte) bool {
switch c {
case ' ', '\t', '\n', '\r':
return true
}
return false
}
func isQuote(c byte) bool {
switch c {
case '"', '\'':
return true
}
return false
}
func (p *textParser) skipWhitespace() {
i := 0
for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') {
if p.s[i] == '#' {
// comment; skip to end of line or input
for i < len(p.s) && p.s[i] != '\n' {
i++
}
if i == len(p.s) {
break
}
}
if p.s[i] == '\n' {
p.line++
}
i++
}
p.offset += i
p.s = p.s[i:len(p.s)]
if len(p.s) == 0 {
p.done = true
}
}
func (p *textParser) advance() {
// Skip whitespace
p.skipWhitespace()
if p.done {
return
}
// Start of non-whitespace
p.cur.err = nil
p.cur.offset, p.cur.line = p.offset, p.line
p.cur.unquoted = ""
switch p.s[0] {
case '<', '>', '{', '}', ':', '[', ']', ';', ',', '/':
// Single symbol
p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)]
case '"', '\'':
// Quoted string
i := 1
for i < len(p.s) && p.s[i] != p.s[0] && p.s[i] != '\n' {
if p.s[i] == '\\' && i+1 < len(p.s) {
// skip escaped char
i++
}
i++
}
if i >= len(p.s) || p.s[i] != p.s[0] {
p.errorf("unmatched quote")
return
}
unq, err := unquoteC(p.s[1:i], rune(p.s[0]))
if err != nil {
p.errorf("invalid quoted string %s: %v", p.s[0:i+1], err)
return
}
p.cur.value, p.s = p.s[0:i+1], p.s[i+1:len(p.s)]
p.cur.unquoted = unq
default:
i := 0
for i < len(p.s) && isIdentOrNumberChar(p.s[i]) {
i++
}
if i == 0 {
p.errorf("unexpected byte %#x", p.s[0])
return
}
p.cur.value, p.s = p.s[0:i], p.s[i:len(p.s)]
}
p.offset += len(p.cur.value)
}
var (
errBadUTF8 = errors.New("proto: bad UTF-8")
errBadHex = errors.New("proto: bad hexadecimal")
)
func unquoteC(s string, quote rune) (string, error) {
// This is based on C++'s tokenizer.cc.
// Despite its name, this is *not* parsing C syntax.
// For instance, "\0" is an invalid quoted string.
// Avoid allocation in trivial cases.
simple := true
for _, r := range s {
if r == '\\' || r == quote {
simple = false
break
}
}
if simple {
return s, nil
}
buf := make([]byte, 0, 3*len(s)/2)
for len(s) > 0 {
r, n := utf8.DecodeRuneInString(s)
if r == utf8.RuneError && n == 1 {
return "", errBadUTF8
}
s = s[n:]
if r != '\\' {
if r < utf8.RuneSelf {
buf = append(buf, byte(r))
} else {
buf = append(buf, string(r)...)
}
continue
}
ch, tail, err := unescape(s)
if err != nil {
return "", err
}
buf = append(buf, ch...)
s = tail
}
return string(buf), nil
}
func unescape(s string) (ch string, tail string, err error) {
r, n := utf8.DecodeRuneInString(s)
if r == utf8.RuneError && n == 1 {
return "", "", errBadUTF8
}
s = s[n:]
switch r {
case 'a':
return "\a", s, nil
case 'b':
return "\b", s, nil
case 'f':
return "\f", s, nil
case 'n':
return "\n", s, nil
case 'r':
return "\r", s, nil
case 't':
return "\t", s, nil
case 'v':
return "\v", s, nil
case '?':
return "?", s, nil // trigraph workaround
case '\'', '"', '\\':
return string(r), s, nil
case '0', '1', '2', '3', '4', '5', '6', '7', 'x', 'X':
if len(s) < 2 {
return "", "", fmt.Errorf(`\%c requires 2 following digits`, r)
}
base := 8
ss := s[:2]
s = s[2:]
if r == 'x' || r == 'X' {
base = 16
} else {
ss = string(r) + ss
}
i, err := strconv.ParseUint(ss, base, 8)
if err != nil {
return "", "", err
}
return string([]byte{byte(i)}), s, nil
case 'u', 'U':
n := 4
if r == 'U' {
n = 8
}
if len(s) < n {
return "", "", fmt.Errorf(`\%c requires %d digits`, r, n)
}
bs := make([]byte, n/2)
for i := 0; i < n; i += 2 {
a, ok1 := unhex(s[i])
b, ok2 := unhex(s[i+1])
if !ok1 || !ok2 {
return "", "", errBadHex
}
bs[i/2] = a<<4 | b
}
s = s[n:]
return string(bs), s, nil
}
return "", "", fmt.Errorf(`unknown escape \%c`, r)
}
// Adapted from src/pkg/strconv/quote.go.
func unhex(b byte) (v byte, ok bool) {
switch {
case '0' <= b && b <= '9':
return b - '0', true
case 'a' <= b && b <= 'f':
return b - 'a' + 10, true
case 'A' <= b && b <= 'F':
return b - 'A' + 10, true
}
return 0, false
}
// Back off the parser by one token. Can only be done between calls to next().
// It makes the next advance() a no-op.
func (p *textParser) back() { p.backed = true }
// Advances the parser and returns the new current token.
func (p *textParser) next() *token {
if p.backed || p.done {
p.backed = false
return &p.cur
}
p.advance()
if p.done {
p.cur.value = ""
} else if len(p.cur.value) > 0 && isQuote(p.cur.value[0]) {
// Look for multiple quoted strings separated by whitespace,
// and concatenate them.
cat := p.cur
for {
p.skipWhitespace()
if p.done || !isQuote(p.s[0]) {
break
}
p.advance()
if p.cur.err != nil {
return &p.cur
}
cat.value += " " + p.cur.value
cat.unquoted += p.cur.unquoted
}
p.done = false // parser may have seen EOF, but we want to return cat
p.cur = cat
}
return &p.cur
}
func (p *textParser) consumeToken(s string) error {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value != s {
p.back()
return p.errorf("expected %q, found %q", s, tok.value)
}
return nil
}
// Return a RequiredNotSetError indicating which required field was not set.
func (p *textParser) missingRequiredFieldError(sv reflect.Value) *RequiredNotSetError {
st := sv.Type()
sprops := GetProperties(st)
for i := 0; i < st.NumField(); i++ {
if !isNil(sv.Field(i)) {
continue
}
props := sprops.Prop[i]
if props.Required {
return &RequiredNotSetError{fmt.Sprintf("%v.%v", st, props.OrigName)}
}
}
return &RequiredNotSetError{fmt.Sprintf("%v.<unknown field name>", st)} // should not happen
}
// Returns the index in the struct for the named field, as well as the parsed tag properties.
func structFieldByName(sprops *StructProperties, name string) (int, *Properties, bool) {
i, ok := sprops.decoderOrigNames[name]
if ok {
return i, sprops.Prop[i], true
}
return -1, nil, false
}
// Consume a ':' from the input stream (if the next token is a colon),
// returning an error if a colon is needed but not present.
func (p *textParser) checkForColon(props *Properties, typ reflect.Type) *ParseError {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value != ":" {
// Colon is optional when the field is a group or message.
needColon := true
switch props.Wire {
case "group":
needColon = false
case "bytes":
// A "bytes" field is either a message, a string, or a repeated field;
// those three become *T, *string and []T respectively, so we can check for
// this field being a pointer to a non-string.
if typ.Kind() == reflect.Ptr {
// *T or *string
if typ.Elem().Kind() == reflect.String {
break
}
} else if typ.Kind() == reflect.Slice {
// []T or []*T
if typ.Elem().Kind() != reflect.Ptr {
break
}
} else if typ.Kind() == reflect.String {
// The proto3 exception is for a string field,
// which requires a colon.
break
}
needColon = false
}
if needColon {
return p.errorf("expected ':', found %q", tok.value)
}
p.back()
}
return nil
}
func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
st := sv.Type()
sprops := GetProperties(st)
reqCount := sprops.reqCount
var reqFieldErr error
fieldSet := make(map[string]bool)
// A struct is a sequence of "name: value", terminated by one of
// '>' or '}', or the end of the input. A name may also be
// "[extension]" or "[type/url]".
//
// The whole struct can also be an expanded Any message, like:
// [type/url] < ... struct contents ... >
for {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value == terminator {
break
}
if tok.value == "[" {
// Looks like an extension or an Any.
//
// TODO: Check whether we need to handle
// namespace rooted names (e.g. ".something.Foo").
extName, err := p.consumeExtName()
if err != nil {
return err
}
if s := strings.LastIndex(extName, "/"); s >= 0 {
// If it contains a slash, it's an Any type URL.
messageName := extName[s+1:]
mt := MessageType(messageName)
if mt == nil {
return p.errorf("unrecognized message %q in google.protobuf.Any", messageName)
}
tok = p.next()
if tok.err != nil {
return tok.err
}
// consume an optional colon
if tok.value == ":" {
tok = p.next()
if tok.err != nil {
return tok.err
}
}
var terminator string
switch tok.value {
case "<":
terminator = ">"
case "{":
terminator = "}"
default:
return p.errorf("expected '{' or '<', found %q", tok.value)
}
v := reflect.New(mt.Elem())
if pe := p.readStruct(v.Elem(), terminator); pe != nil {
return pe
}
b, err := Marshal(v.Interface().(Message))
if err != nil {
return p.errorf("failed to marshal message of type %q: %v", messageName, err)
}
sv.FieldByName("TypeUrl").SetString(extName)
sv.FieldByName("Value").SetBytes(b)
continue
}
var desc *ExtensionDesc
// This could be faster, but it's functional.
// TODO: Do something smarter than a linear scan.
for _, d := range RegisteredExtensions(reflect.New(st).Interface().(Message)) {
if d.Name == extName {
desc = d
break
}
}
if desc == nil {
return p.errorf("unrecognized extension %q", extName)
}
props := &Properties{}
props.Parse(desc.Tag)
typ := reflect.TypeOf(desc.ExtensionType)
if err := p.checkForColon(props, typ); err != nil {
return err
}
rep := desc.repeated()
// Read the extension structure, and set it in
// the value we're constructing.
var ext reflect.Value
if !rep {
ext = reflect.New(typ).Elem()
} else {
ext = reflect.New(typ.Elem()).Elem()
}
if err := p.readAny(ext, props); err != nil {
if _, ok := err.(*RequiredNotSetError); !ok {
return err
}
reqFieldErr = err
}
ep := sv.Addr().Interface().(Message)
if !rep {
SetExtension(ep, desc, ext.Interface())
} else {
old, err := GetExtension(ep, desc)
var sl reflect.Value
if err == nil {
sl = reflect.ValueOf(old) // existing slice
} else {
sl = reflect.MakeSlice(typ, 0, 1)
}
sl = reflect.Append(sl, ext)
SetExtension(ep, desc, sl.Interface())
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
continue
}
// This is a normal, non-extension field.
name := tok.value
var dst reflect.Value
fi, props, ok := structFieldByName(sprops, name)
if ok {
dst = sv.Field(fi)
} else if oop, ok := sprops.OneofTypes[name]; ok {
// It is a oneof.
props = oop.Prop
nv := reflect.New(oop.Type.Elem())
dst = nv.Elem().Field(0)
sv.Field(oop.Field).Set(nv)
}
if !dst.IsValid() {
return p.errorf("unknown field name %q in %v", name, st)
}
if dst.Kind() == reflect.Map {
// Consume any colon.
if err := p.checkForColon(props, dst.Type()); err != nil {
return err
}
// Construct the map if it doesn't already exist.
if dst.IsNil() {
dst.Set(reflect.MakeMap(dst.Type()))
}
key := reflect.New(dst.Type().Key()).Elem()
val := reflect.New(dst.Type().Elem()).Elem()
// The map entry should be this sequence of tokens:
// < key : KEY value : VALUE >
// However, implementations may omit key or value, and technically
// we should support them in any order. See b/28924776 for a time
// this went wrong.
tok := p.next()
var terminator string
switch tok.value {
case "<":
terminator = ">"
case "{":
terminator = "}"
default:
return p.errorf("expected '{' or '<', found %q", tok.value)
}
for {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value == terminator {
break
}
switch tok.value {
case "key":
if err := p.consumeToken(":"); err != nil {
return err
}
if err := p.readAny(key, props.mkeyprop); err != nil {
return err
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
case "value":
if err := p.checkForColon(props.mvalprop, dst.Type().Elem()); err != nil {
return err
}
if err := p.readAny(val, props.mvalprop); err != nil {
return err
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
default:
p.back()
return p.errorf(`expected "key", "value", or %q, found %q`, terminator, tok.value)
}
}
dst.SetMapIndex(key, val)
continue
}
// Check that it's not already set if it's not a repeated field.
if !props.Repeated && fieldSet[name] {
return p.errorf("non-repeated field %q was repeated", name)
}
if err := p.checkForColon(props, dst.Type()); err != nil {
return err
}
// Parse into the field.
fieldSet[name] = true
if err := p.readAny(dst, props); err != nil {
if _, ok := err.(*RequiredNotSetError); !ok {
return err
}
reqFieldErr = err
}
if props.Required {
reqCount--
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
}
if reqCount > 0 {
return p.missingRequiredFieldError(sv)
}
return reqFieldErr
}
// consumeExtName consumes extension name or expanded Any type URL and the
// following ']'. It returns the name or URL consumed.
func (p *textParser) consumeExtName() (string, error) {
tok := p.next()
if tok.err != nil {
return "", tok.err
}
// If extension name or type url is quoted, it's a single token.
if len(tok.value) > 2 && isQuote(tok.value[0]) && tok.value[len(tok.value)-1] == tok.value[0] {
name, err := unquoteC(tok.value[1:len(tok.value)-1], rune(tok.value[0]))
if err != nil {
return "", err
}
return name, p.consumeToken("]")
}
// Consume everything up to "]"
var parts []string
for tok.value != "]" {
parts = append(parts, tok.value)
tok = p.next()
if tok.err != nil {
return "", p.errorf("unrecognized type_url or extension name: %s", tok.err)
}
}
return strings.Join(parts, ""), nil
}
// consumeOptionalSeparator consumes an optional semicolon or comma.
// It is used in readStruct to provide backward compatibility.
func (p *textParser) consumeOptionalSeparator() error {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value != ";" && tok.value != "," {
p.back()
}
return nil
}
func (p *textParser) readAny(v reflect.Value, props *Properties) error {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value == "" {
return p.errorf("unexpected EOF")
}
switch fv := v; fv.Kind() {
case reflect.Slice:
at := v.Type()
if at.Elem().Kind() == reflect.Uint8 {
// Special case for []byte
if tok.value[0] != '"' && tok.value[0] != '\'' {
// Deliberately written out here, as the error after
// this switch statement would write "invalid []byte: ...",
// which is not as user-friendly.
return p.errorf("invalid string: %v", tok.value)
}
bytes := []byte(tok.unquoted)
fv.Set(reflect.ValueOf(bytes))
return nil
}
// Repeated field.
if tok.value == "[" {
// Repeated field with list notation, like [1,2,3].
for {
fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
err := p.readAny(fv.Index(fv.Len()-1), props)
if err != nil {
return err
}
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value == "]" {
break
}
if tok.value != "," {
return p.errorf("Expected ']' or ',' found %q", tok.value)
}
}
return nil
}
// One value of the repeated field.
p.back()
fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
return p.readAny(fv.Index(fv.Len()-1), props)
case reflect.Bool:
// Either "true", "false", 1 or 0.
switch tok.value {
case "true", "1":
fv.SetBool(true)
return nil
case "false", "0":
fv.SetBool(false)
return nil
}
case reflect.Float32, reflect.Float64:
v := tok.value
// Ignore 'f' for compatibility with output generated by C++, but don't
// remove 'f' when the value is "-inf" or "inf".
if strings.HasSuffix(v, "f") && tok.value != "-inf" && tok.value != "inf" {
v = v[:len(v)-1]
}
if f, err := strconv.ParseFloat(v, fv.Type().Bits()); err == nil {
fv.SetFloat(f)
return nil
}
case reflect.Int32:
if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil {
fv.SetInt(x)
return nil
}
if len(props.Enum) == 0 {
break
}
m, ok := enumValueMaps[props.Enum]
if !ok {
break
}
x, ok := m[tok.value]
if !ok {
break
}
fv.SetInt(int64(x))
return nil
case reflect.Int64:
if x, err := strconv.ParseInt(tok.value, 0, 64); err == nil {
fv.SetInt(x)
return nil
}
case reflect.Ptr:
// A basic field (indirected through pointer), or a repeated message/group
p.back()
fv.Set(reflect.New(fv.Type().Elem()))
return p.readAny(fv.Elem(), props)
case reflect.String:
if tok.value[0] == '"' || tok.value[0] == '\'' {
fv.SetString(tok.unquoted)
return nil
}
case reflect.Struct:
var terminator string
switch tok.value {
case "{":
terminator = "}"
case "<":
terminator = ">"
default:
return p.errorf("expected '{' or '<', found %q", tok.value)
}
// TODO: Handle nested messages which implement encoding.TextUnmarshaler.
return p.readStruct(fv, terminator)
case reflect.Uint32:
if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil {
fv.SetUint(uint64(x))
return nil
}
case reflect.Uint64:
if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil {
fv.SetUint(x)
return nil
}
}
return p.errorf("invalid %v: %v", v.Type(), tok.value)
}
// UnmarshalText reads a protocol buffer in Text format. UnmarshalText resets pb
// before starting to unmarshal, so any existing data in pb is always removed.
// If a required field is not set and no other error occurs,
// UnmarshalText returns *RequiredNotSetError.
func UnmarshalText(s string, pb Message) error {
if um, ok := pb.(encoding.TextUnmarshaler); ok {
err := um.UnmarshalText([]byte(s))
return err
}
pb.Reset()
v := reflect.ValueOf(pb)
if pe := newTextParser(s).readStruct(v.Elem(), ""); pe != nil {
return pe
}
return nil
}

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vendor/github.com/urfave/cli/CHANGELOG.md generated vendored Normal file
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@ -0,0 +1,392 @@
# Change Log
**ATTN**: This project uses [semantic versioning](http://semver.org/).
## [Unreleased]
## [1.19.1] - 2016-11-21
### Fixed
- Fixes regression introduced in 1.19.0 where using an `ActionFunc` as
the `Action` for a command would cause it to error rather than calling the
function. Should not have a affected declarative cases using `func(c
*cli.Context) err)`.
- Shell completion now handles the case where the user specifies
`--generate-bash-completion` immediately after a flag that takes an argument.
Previously it call the application with `--generate-bash-completion` as the
flag value.
## [1.19.0] - 2016-11-19
### Added
- `FlagsByName` was added to make it easy to sort flags (e.g. `sort.Sort(cli.FlagsByName(app.Flags))`)
- A `Description` field was added to `App` for a more detailed description of
the application (similar to the existing `Description` field on `Command`)
- Flag type code generation via `go generate`
- Write to stderr and exit 1 if action returns non-nil error
- Added support for TOML to the `altsrc` loader
- `SkipArgReorder` was added to allow users to skip the argument reordering.
This is useful if you want to consider all "flags" after an argument as
arguments rather than flags (the default behavior of the stdlib `flag`
library). This is backported functionality from the [removal of the flag
reordering](https://github.com/urfave/cli/pull/398) in the unreleased version
2
- For formatted errors (those implementing `ErrorFormatter`), the errors will
be formatted during output. Compatible with `pkg/errors`.
### Changed
- Raise minimum tested/supported Go version to 1.2+
### Fixed
- Consider empty environment variables as set (previously environment variables
with the equivalent of `""` would be skipped rather than their value used).
- Return an error if the value in a given environment variable cannot be parsed
as the flag type. Previously these errors were silently swallowed.
- Print full error when an invalid flag is specified (which includes the invalid flag)
- `App.Writer` defaults to `stdout` when `nil`
- If no action is specified on a command or app, the help is now printed instead of `panic`ing
- `App.Metadata` is initialized automatically now (previously was `nil` unless initialized)
- Correctly show help message if `-h` is provided to a subcommand
- `context.(Global)IsSet` now respects environment variables. Previously it
would return `false` if a flag was specified in the environment rather than
as an argument
- Removed deprecation warnings to STDERR to avoid them leaking to the end-user
- `altsrc`s import paths were updated to use `gopkg.in/urfave/cli.v1`. This
fixes issues that occurred when `gopkg.in/urfave/cli.v1` was imported as well
as `altsrc` where Go would complain that the types didn't match
## [1.18.1] - 2016-08-28
### Fixed
- Removed deprecation warnings to STDERR to avoid them leaking to the end-user (backported)
## [1.18.0] - 2016-06-27
### Added
- `./runtests` test runner with coverage tracking by default
- testing on OS X
- testing on Windows
- `UintFlag`, `Uint64Flag`, and `Int64Flag` types and supporting code
### Changed
- Use spaces for alignment in help/usage output instead of tabs, making the
output alignment consistent regardless of tab width
### Fixed
- Printing of command aliases in help text
- Printing of visible flags for both struct and struct pointer flags
- Display the `help` subcommand when using `CommandCategories`
- No longer swallows `panic`s that occur within the `Action`s themselves when
detecting the signature of the `Action` field
## [1.17.1] - 2016-08-28
### Fixed
- Removed deprecation warnings to STDERR to avoid them leaking to the end-user
## [1.17.0] - 2016-05-09
### Added
- Pluggable flag-level help text rendering via `cli.DefaultFlagStringFunc`
- `context.GlobalBoolT` was added as an analogue to `context.GlobalBool`
- Support for hiding commands by setting `Hidden: true` -- this will hide the
commands in help output
### Changed
- `Float64Flag`, `IntFlag`, and `DurationFlag` default values are no longer
quoted in help text output.
- All flag types now include `(default: {value})` strings following usage when a
default value can be (reasonably) detected.
- `IntSliceFlag` and `StringSliceFlag` usage strings are now more consistent
with non-slice flag types
- Apps now exit with a code of 3 if an unknown subcommand is specified
(previously they printed "No help topic for...", but still exited 0. This
makes it easier to script around apps built using `cli` since they can trust
that a 0 exit code indicated a successful execution.
- cleanups based on [Go Report Card
feedback](https://goreportcard.com/report/github.com/urfave/cli)
## [1.16.1] - 2016-08-28
### Fixed
- Removed deprecation warnings to STDERR to avoid them leaking to the end-user
## [1.16.0] - 2016-05-02
### Added
- `Hidden` field on all flag struct types to omit from generated help text
### Changed
- `BashCompletionFlag` (`--enable-bash-completion`) is now omitted from
generated help text via the `Hidden` field
### Fixed
- handling of error values in `HandleAction` and `HandleExitCoder`
## [1.15.0] - 2016-04-30
### Added
- This file!
- Support for placeholders in flag usage strings
- `App.Metadata` map for arbitrary data/state management
- `Set` and `GlobalSet` methods on `*cli.Context` for altering values after
parsing.
- Support for nested lookup of dot-delimited keys in structures loaded from
YAML.
### Changed
- The `App.Action` and `Command.Action` now prefer a return signature of
`func(*cli.Context) error`, as defined by `cli.ActionFunc`. If a non-nil
`error` is returned, there may be two outcomes:
- If the error fulfills `cli.ExitCoder`, then `os.Exit` will be called
automatically
- Else the error is bubbled up and returned from `App.Run`
- Specifying an `Action` with the legacy return signature of
`func(*cli.Context)` will produce a deprecation message to stderr
- Specifying an `Action` that is not a `func` type will produce a non-zero exit
from `App.Run`
- Specifying an `Action` func that has an invalid (input) signature will
produce a non-zero exit from `App.Run`
### Deprecated
- <a name="deprecated-cli-app-runandexitonerror"></a>
`cli.App.RunAndExitOnError`, which should now be done by returning an error
that fulfills `cli.ExitCoder` to `cli.App.Run`.
- <a name="deprecated-cli-app-action-signature"></a> the legacy signature for
`cli.App.Action` of `func(*cli.Context)`, which should now have a return
signature of `func(*cli.Context) error`, as defined by `cli.ActionFunc`.
### Fixed
- Added missing `*cli.Context.GlobalFloat64` method
## [1.14.0] - 2016-04-03 (backfilled 2016-04-25)
### Added
- Codebeat badge
- Support for categorization via `CategorizedHelp` and `Categories` on app.
### Changed
- Use `filepath.Base` instead of `path.Base` in `Name` and `HelpName`.
### Fixed
- Ensure version is not shown in help text when `HideVersion` set.
## [1.13.0] - 2016-03-06 (backfilled 2016-04-25)
### Added
- YAML file input support.
- `NArg` method on context.
## [1.12.0] - 2016-02-17 (backfilled 2016-04-25)
### Added
- Custom usage error handling.
- Custom text support in `USAGE` section of help output.
- Improved help messages for empty strings.
- AppVeyor CI configuration.
### Changed
- Removed `panic` from default help printer func.
- De-duping and optimizations.
### Fixed
- Correctly handle `Before`/`After` at command level when no subcommands.
- Case of literal `-` argument causing flag reordering.
- Environment variable hints on Windows.
- Docs updates.
## [1.11.1] - 2015-12-21 (backfilled 2016-04-25)
### Changed
- Use `path.Base` in `Name` and `HelpName`
- Export `GetName` on flag types.
### Fixed
- Flag parsing when skipping is enabled.
- Test output cleanup.
- Move completion check to account for empty input case.
## [1.11.0] - 2015-11-15 (backfilled 2016-04-25)
### Added
- Destination scan support for flags.
- Testing against `tip` in Travis CI config.
### Changed
- Go version in Travis CI config.
### Fixed
- Removed redundant tests.
- Use correct example naming in tests.
## [1.10.2] - 2015-10-29 (backfilled 2016-04-25)
### Fixed
- Remove unused var in bash completion.
## [1.10.1] - 2015-10-21 (backfilled 2016-04-25)
### Added
- Coverage and reference logos in README.
### Fixed
- Use specified values in help and version parsing.
- Only display app version and help message once.
## [1.10.0] - 2015-10-06 (backfilled 2016-04-25)
### Added
- More tests for existing functionality.
- `ArgsUsage` at app and command level for help text flexibility.
### Fixed
- Honor `HideHelp` and `HideVersion` in `App.Run`.
- Remove juvenile word from README.
## [1.9.0] - 2015-09-08 (backfilled 2016-04-25)
### Added
- `FullName` on command with accompanying help output update.
- Set default `$PROG` in bash completion.
### Changed
- Docs formatting.
### Fixed
- Removed self-referential imports in tests.
## [1.8.0] - 2015-06-30 (backfilled 2016-04-25)
### Added
- Support for `Copyright` at app level.
- `Parent` func at context level to walk up context lineage.
### Fixed
- Global flag processing at top level.
## [1.7.1] - 2015-06-11 (backfilled 2016-04-25)
### Added
- Aggregate errors from `Before`/`After` funcs.
- Doc comments on flag structs.
- Include non-global flags when checking version and help.
- Travis CI config updates.
### Fixed
- Ensure slice type flags have non-nil values.
- Collect global flags from the full command hierarchy.
- Docs prose.
## [1.7.0] - 2015-05-03 (backfilled 2016-04-25)
### Changed
- `HelpPrinter` signature includes output writer.
### Fixed
- Specify go 1.1+ in docs.
- Set `Writer` when running command as app.
## [1.6.0] - 2015-03-23 (backfilled 2016-04-25)
### Added
- Multiple author support.
- `NumFlags` at context level.
- `Aliases` at command level.
### Deprecated
- `ShortName` at command level.
### Fixed
- Subcommand help output.
- Backward compatible support for deprecated `Author` and `Email` fields.
- Docs regarding `Names`/`Aliases`.
## [1.5.0] - 2015-02-20 (backfilled 2016-04-25)
### Added
- `After` hook func support at app and command level.
### Fixed
- Use parsed context when running command as subcommand.
- Docs prose.
## [1.4.1] - 2015-01-09 (backfilled 2016-04-25)
### Added
- Support for hiding `-h / --help` flags, but not `help` subcommand.
- Stop flag parsing after `--`.
### Fixed
- Help text for generic flags to specify single value.
- Use double quotes in output for defaults.
- Use `ParseInt` instead of `ParseUint` for int environment var values.
- Use `0` as base when parsing int environment var values.
## [1.4.0] - 2014-12-12 (backfilled 2016-04-25)
### Added
- Support for environment variable lookup "cascade".
- Support for `Stdout` on app for output redirection.
### Fixed
- Print command help instead of app help in `ShowCommandHelp`.
## [1.3.1] - 2014-11-13 (backfilled 2016-04-25)
### Added
- Docs and example code updates.
### Changed
- Default `-v / --version` flag made optional.
## [1.3.0] - 2014-08-10 (backfilled 2016-04-25)
### Added
- `FlagNames` at context level.
- Exposed `VersionPrinter` var for more control over version output.
- Zsh completion hook.
- `AUTHOR` section in default app help template.
- Contribution guidelines.
- `DurationFlag` type.
## [1.2.0] - 2014-08-02
### Added
- Support for environment variable defaults on flags plus tests.
## [1.1.0] - 2014-07-15
### Added
- Bash completion.
- Optional hiding of built-in help command.
- Optional skipping of flag parsing at command level.
- `Author`, `Email`, and `Compiled` metadata on app.
- `Before` hook func support at app and command level.
- `CommandNotFound` func support at app level.
- Command reference available on context.
- `GenericFlag` type.
- `Float64Flag` type.
- `BoolTFlag` type.
- `IsSet` flag helper on context.
- More flag lookup funcs at context level.
- More tests &amp; docs.
### Changed
- Help template updates to account for presence/absence of flags.
- Separated subcommand help template.
- Exposed `HelpPrinter` var for more control over help output.
## [1.0.0] - 2013-11-01
### Added
- `help` flag in default app flag set and each command flag set.
- Custom handling of argument parsing errors.
- Command lookup by name at app level.
- `StringSliceFlag` type and supporting `StringSlice` type.
- `IntSliceFlag` type and supporting `IntSlice` type.
- Slice type flag lookups by name at context level.
- Export of app and command help functions.
- More tests &amp; docs.
## 0.1.0 - 2013-07-22
### Added
- Initial implementation.
[Unreleased]: https://github.com/urfave/cli/compare/v1.18.0...HEAD
[1.18.0]: https://github.com/urfave/cli/compare/v1.17.0...v1.18.0
[1.17.0]: https://github.com/urfave/cli/compare/v1.16.0...v1.17.0
[1.16.0]: https://github.com/urfave/cli/compare/v1.15.0...v1.16.0
[1.15.0]: https://github.com/urfave/cli/compare/v1.14.0...v1.15.0
[1.14.0]: https://github.com/urfave/cli/compare/v1.13.0...v1.14.0
[1.13.0]: https://github.com/urfave/cli/compare/v1.12.0...v1.13.0
[1.12.0]: https://github.com/urfave/cli/compare/v1.11.1...v1.12.0
[1.11.1]: https://github.com/urfave/cli/compare/v1.11.0...v1.11.1
[1.11.0]: https://github.com/urfave/cli/compare/v1.10.2...v1.11.0
[1.10.2]: https://github.com/urfave/cli/compare/v1.10.1...v1.10.2
[1.10.1]: https://github.com/urfave/cli/compare/v1.10.0...v1.10.1
[1.10.0]: https://github.com/urfave/cli/compare/v1.9.0...v1.10.0
[1.9.0]: https://github.com/urfave/cli/compare/v1.8.0...v1.9.0
[1.8.0]: https://github.com/urfave/cli/compare/v1.7.1...v1.8.0
[1.7.1]: https://github.com/urfave/cli/compare/v1.7.0...v1.7.1
[1.7.0]: https://github.com/urfave/cli/compare/v1.6.0...v1.7.0
[1.6.0]: https://github.com/urfave/cli/compare/v1.5.0...v1.6.0
[1.5.0]: https://github.com/urfave/cli/compare/v1.4.1...v1.5.0
[1.4.1]: https://github.com/urfave/cli/compare/v1.4.0...v1.4.1
[1.4.0]: https://github.com/urfave/cli/compare/v1.3.1...v1.4.0
[1.3.1]: https://github.com/urfave/cli/compare/v1.3.0...v1.3.1
[1.3.0]: https://github.com/urfave/cli/compare/v1.2.0...v1.3.0
[1.2.0]: https://github.com/urfave/cli/compare/v1.1.0...v1.2.0
[1.1.0]: https://github.com/urfave/cli/compare/v1.0.0...v1.1.0
[1.0.0]: https://github.com/urfave/cli/compare/v0.1.0...v1.0.0

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MIT License
Copyright (c) 2016 Jeremy Saenz & Contributors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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package cli
import (
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"sort"
"time"
)
var (
changeLogURL = "https://github.com/urfave/cli/blob/master/CHANGELOG.md"
appActionDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-action-signature", changeLogURL)
runAndExitOnErrorDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-runandexitonerror", changeLogURL)
contactSysadmin = "This is an error in the application. Please contact the distributor of this application if this is not you."
errInvalidActionType = NewExitError("ERROR invalid Action type. "+
fmt.Sprintf("Must be `func(*Context`)` or `func(*Context) error). %s", contactSysadmin)+
fmt.Sprintf("See %s", appActionDeprecationURL), 2)
)
// App is the main structure of a cli application. It is recommended that
// an app be created with the cli.NewApp() function
type App struct {
// The name of the program. Defaults to path.Base(os.Args[0])
Name string
// Full name of command for help, defaults to Name
HelpName string
// Description of the program.
Usage string
// Text to override the USAGE section of help
UsageText string
// Description of the program argument format.
ArgsUsage string
// Version of the program
Version string
// Description of the program
Description string
// List of commands to execute
Commands []Command
// List of flags to parse
Flags []Flag
// Boolean to enable bash completion commands
EnableBashCompletion bool
// Boolean to hide built-in help command
HideHelp bool
// Boolean to hide built-in version flag and the VERSION section of help
HideVersion bool
// Populate on app startup, only gettable through method Categories()
categories CommandCategories
// An action to execute when the bash-completion flag is set
BashComplete BashCompleteFunc
// An action to execute before any subcommands are run, but after the context is ready
// If a non-nil error is returned, no subcommands are run
Before BeforeFunc
// An action to execute after any subcommands are run, but after the subcommand has finished
// It is run even if Action() panics
After AfterFunc
// The action to execute when no subcommands are specified
// Expects a `cli.ActionFunc` but will accept the *deprecated* signature of `func(*cli.Context) {}`
// *Note*: support for the deprecated `Action` signature will be removed in a future version
Action interface{}
// Execute this function if the proper command cannot be found
CommandNotFound CommandNotFoundFunc
// Execute this function if an usage error occurs
OnUsageError OnUsageErrorFunc
// Compilation date
Compiled time.Time
// List of all authors who contributed
Authors []Author
// Copyright of the binary if any
Copyright string
// Name of Author (Note: Use App.Authors, this is deprecated)
Author string
// Email of Author (Note: Use App.Authors, this is deprecated)
Email string
// Writer writer to write output to
Writer io.Writer
// ErrWriter writes error output
ErrWriter io.Writer
// Other custom info
Metadata map[string]interface{}
// Carries a function which returns app specific info.
ExtraInfo func() map[string]string
// CustomAppHelpTemplate the text template for app help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
CustomAppHelpTemplate string
didSetup bool
}
// Tries to find out when this binary was compiled.
// Returns the current time if it fails to find it.
func compileTime() time.Time {
info, err := os.Stat(os.Args[0])
if err != nil {
return time.Now()
}
return info.ModTime()
}
// NewApp creates a new cli Application with some reasonable defaults for Name,
// Usage, Version and Action.
func NewApp() *App {
return &App{
Name: filepath.Base(os.Args[0]),
HelpName: filepath.Base(os.Args[0]),
Usage: "A new cli application",
UsageText: "",
Version: "0.0.0",
BashComplete: DefaultAppComplete,
Action: helpCommand.Action,
Compiled: compileTime(),
Writer: os.Stdout,
}
}
// Setup runs initialization code to ensure all data structures are ready for
// `Run` or inspection prior to `Run`. It is internally called by `Run`, but
// will return early if setup has already happened.
func (a *App) Setup() {
if a.didSetup {
return
}
a.didSetup = true
if a.Author != "" || a.Email != "" {
a.Authors = append(a.Authors, Author{Name: a.Author, Email: a.Email})
}
newCmds := []Command{}
for _, c := range a.Commands {
if c.HelpName == "" {
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
}
newCmds = append(newCmds, c)
}
a.Commands = newCmds
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
a.Commands = append(a.Commands, helpCommand)
if (HelpFlag != BoolFlag{}) {
a.appendFlag(HelpFlag)
}
}
if !a.HideVersion {
a.appendFlag(VersionFlag)
}
a.categories = CommandCategories{}
for _, command := range a.Commands {
a.categories = a.categories.AddCommand(command.Category, command)
}
sort.Sort(a.categories)
if a.Metadata == nil {
a.Metadata = make(map[string]interface{})
}
if a.Writer == nil {
a.Writer = os.Stdout
}
}
// Run is the entry point to the cli app. Parses the arguments slice and routes
// to the proper flag/args combination
func (a *App) Run(arguments []string) (err error) {
a.Setup()
// handle the completion flag separately from the flagset since
// completion could be attempted after a flag, but before its value was put
// on the command line. this causes the flagset to interpret the completion
// flag name as the value of the flag before it which is undesirable
// note that we can only do this because the shell autocomplete function
// always appends the completion flag at the end of the command
shellComplete, arguments := checkShellCompleteFlag(a, arguments)
// parse flags
set, err := flagSet(a.Name, a.Flags)
if err != nil {
return err
}
set.SetOutput(ioutil.Discard)
err = set.Parse(arguments[1:])
nerr := normalizeFlags(a.Flags, set)
context := NewContext(a, set, nil)
if nerr != nil {
fmt.Fprintln(a.Writer, nerr)
ShowAppHelp(context)
return nerr
}
context.shellComplete = shellComplete
if checkCompletions(context) {
return nil
}
if err != nil {
if a.OnUsageError != nil {
err := a.OnUsageError(context, err, false)
HandleExitCoder(err)
return err
}
fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error())
ShowAppHelp(context)
return err
}
if !a.HideHelp && checkHelp(context) {
ShowAppHelp(context)
return nil
}
if !a.HideVersion && checkVersion(context) {
ShowVersion(context)
return nil
}
if a.After != nil {
defer func() {
if afterErr := a.After(context); afterErr != nil {
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if a.Before != nil {
beforeErr := a.Before(context)
if beforeErr != nil {
ShowAppHelp(context)
HandleExitCoder(beforeErr)
err = beforeErr
return err
}
}
args := context.Args()
if args.Present() {
name := args.First()
c := a.Command(name)
if c != nil {
return c.Run(context)
}
}
if a.Action == nil {
a.Action = helpCommand.Action
}
// Run default Action
err = HandleAction(a.Action, context)
HandleExitCoder(err)
return err
}
// RunAndExitOnError calls .Run() and exits non-zero if an error was returned
//
// Deprecated: instead you should return an error that fulfills cli.ExitCoder
// to cli.App.Run. This will cause the application to exit with the given eror
// code in the cli.ExitCoder
func (a *App) RunAndExitOnError() {
if err := a.Run(os.Args); err != nil {
fmt.Fprintln(a.errWriter(), err)
OsExiter(1)
}
}
// RunAsSubcommand invokes the subcommand given the context, parses ctx.Args() to
// generate command-specific flags
func (a *App) RunAsSubcommand(ctx *Context) (err error) {
// append help to commands
if len(a.Commands) > 0 {
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
a.Commands = append(a.Commands, helpCommand)
if (HelpFlag != BoolFlag{}) {
a.appendFlag(HelpFlag)
}
}
}
newCmds := []Command{}
for _, c := range a.Commands {
if c.HelpName == "" {
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
}
newCmds = append(newCmds, c)
}
a.Commands = newCmds
// parse flags
set, err := flagSet(a.Name, a.Flags)
if err != nil {
return err
}
set.SetOutput(ioutil.Discard)
err = set.Parse(ctx.Args().Tail())
nerr := normalizeFlags(a.Flags, set)
context := NewContext(a, set, ctx)
if nerr != nil {
fmt.Fprintln(a.Writer, nerr)
fmt.Fprintln(a.Writer)
if len(a.Commands) > 0 {
ShowSubcommandHelp(context)
} else {
ShowCommandHelp(ctx, context.Args().First())
}
return nerr
}
if checkCompletions(context) {
return nil
}
if err != nil {
if a.OnUsageError != nil {
err = a.OnUsageError(context, err, true)
HandleExitCoder(err)
return err
}
fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error())
ShowSubcommandHelp(context)
return err
}
if len(a.Commands) > 0 {
if checkSubcommandHelp(context) {
return nil
}
} else {
if checkCommandHelp(ctx, context.Args().First()) {
return nil
}
}
if a.After != nil {
defer func() {
afterErr := a.After(context)
if afterErr != nil {
HandleExitCoder(err)
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if a.Before != nil {
beforeErr := a.Before(context)
if beforeErr != nil {
HandleExitCoder(beforeErr)
err = beforeErr
return err
}
}
args := context.Args()
if args.Present() {
name := args.First()
c := a.Command(name)
if c != nil {
return c.Run(context)
}
}
// Run default Action
err = HandleAction(a.Action, context)
HandleExitCoder(err)
return err
}
// Command returns the named command on App. Returns nil if the command does not exist
func (a *App) Command(name string) *Command {
for _, c := range a.Commands {
if c.HasName(name) {
return &c
}
}
return nil
}
// Categories returns a slice containing all the categories with the commands they contain
func (a *App) Categories() CommandCategories {
return a.categories
}
// VisibleCategories returns a slice of categories and commands that are
// Hidden=false
func (a *App) VisibleCategories() []*CommandCategory {
ret := []*CommandCategory{}
for _, category := range a.categories {
if visible := func() *CommandCategory {
for _, command := range category.Commands {
if !command.Hidden {
return category
}
}
return nil
}(); visible != nil {
ret = append(ret, visible)
}
}
return ret
}
// VisibleCommands returns a slice of the Commands with Hidden=false
func (a *App) VisibleCommands() []Command {
ret := []Command{}
for _, command := range a.Commands {
if !command.Hidden {
ret = append(ret, command)
}
}
return ret
}
// VisibleFlags returns a slice of the Flags with Hidden=false
func (a *App) VisibleFlags() []Flag {
return visibleFlags(a.Flags)
}
func (a *App) hasFlag(flag Flag) bool {
for _, f := range a.Flags {
if flag == f {
return true
}
}
return false
}
func (a *App) errWriter() io.Writer {
// When the app ErrWriter is nil use the package level one.
if a.ErrWriter == nil {
return ErrWriter
}
return a.ErrWriter
}
func (a *App) appendFlag(flag Flag) {
if !a.hasFlag(flag) {
a.Flags = append(a.Flags, flag)
}
}
// Author represents someone who has contributed to a cli project.
type Author struct {
Name string // The Authors name
Email string // The Authors email
}
// String makes Author comply to the Stringer interface, to allow an easy print in the templating process
func (a Author) String() string {
e := ""
if a.Email != "" {
e = " <" + a.Email + ">"
}
return fmt.Sprintf("%v%v", a.Name, e)
}
// HandleAction attempts to figure out which Action signature was used. If
// it's an ActionFunc or a func with the legacy signature for Action, the func
// is run!
func HandleAction(action interface{}, context *Context) (err error) {
if a, ok := action.(ActionFunc); ok {
return a(context)
} else if a, ok := action.(func(*Context) error); ok {
return a(context)
} else if a, ok := action.(func(*Context)); ok { // deprecated function signature
a(context)
return nil
} else {
return errInvalidActionType
}
}

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version: "{build}"
os: Windows Server 2012 R2
clone_folder: c:\gopath\src\github.com\urfave\cli
environment:
GOPATH: C:\gopath
GOVERSION: 1.6
PYTHON: C:\Python27-x64
PYTHON_VERSION: 2.7.x
PYTHON_ARCH: 64
install:
- set PATH=%GOPATH%\bin;C:\go\bin;%PATH%
- go version
- go env
- go get github.com/urfave/gfmrun/...
- go get -v -t ./...
build_script:
- python runtests vet
- python runtests test
- python runtests gfmrun

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vendor/github.com/urfave/cli/category.go generated vendored Normal file
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package cli
// CommandCategories is a slice of *CommandCategory.
type CommandCategories []*CommandCategory
// CommandCategory is a category containing commands.
type CommandCategory struct {
Name string
Commands Commands
}
func (c CommandCategories) Less(i, j int) bool {
return c[i].Name < c[j].Name
}
func (c CommandCategories) Len() int {
return len(c)
}
func (c CommandCategories) Swap(i, j int) {
c[i], c[j] = c[j], c[i]
}
// AddCommand adds a command to a category.
func (c CommandCategories) AddCommand(category string, command Command) CommandCategories {
for _, commandCategory := range c {
if commandCategory.Name == category {
commandCategory.Commands = append(commandCategory.Commands, command)
return c
}
}
return append(c, &CommandCategory{Name: category, Commands: []Command{command}})
}
// VisibleCommands returns a slice of the Commands with Hidden=false
func (c *CommandCategory) VisibleCommands() []Command {
ret := []Command{}
for _, command := range c.Commands {
if !command.Hidden {
ret = append(ret, command)
}
}
return ret
}

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vendor/github.com/urfave/cli/cli.go generated vendored Normal file
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// Package cli provides a minimal framework for creating and organizing command line
// Go applications. cli is designed to be easy to understand and write, the most simple
// cli application can be written as follows:
// func main() {
// cli.NewApp().Run(os.Args)
// }
//
// Of course this application does not do much, so let's make this an actual application:
// func main() {
// app := cli.NewApp()
// app.Name = "greet"
// app.Usage = "say a greeting"
// app.Action = func(c *cli.Context) error {
// println("Greetings")
// return nil
// }
//
// app.Run(os.Args)
// }
package cli
//go:generate python ./generate-flag-types cli -i flag-types.json -o flag_generated.go

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vendor/github.com/urfave/cli/command.go generated vendored Normal file
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package cli
import (
"fmt"
"io/ioutil"
"sort"
"strings"
)
// Command is a subcommand for a cli.App.
type Command struct {
// The name of the command
Name string
// short name of the command. Typically one character (deprecated, use `Aliases`)
ShortName string
// A list of aliases for the command
Aliases []string
// A short description of the usage of this command
Usage string
// Custom text to show on USAGE section of help
UsageText string
// A longer explanation of how the command works
Description string
// A short description of the arguments of this command
ArgsUsage string
// The category the command is part of
Category string
// The function to call when checking for bash command completions
BashComplete BashCompleteFunc
// An action to execute before any sub-subcommands are run, but after the context is ready
// If a non-nil error is returned, no sub-subcommands are run
Before BeforeFunc
// An action to execute after any subcommands are run, but after the subcommand has finished
// It is run even if Action() panics
After AfterFunc
// The function to call when this command is invoked
Action interface{}
// TODO: replace `Action: interface{}` with `Action: ActionFunc` once some kind
// of deprecation period has passed, maybe?
// Execute this function if a usage error occurs.
OnUsageError OnUsageErrorFunc
// List of child commands
Subcommands Commands
// List of flags to parse
Flags []Flag
// Treat all flags as normal arguments if true
SkipFlagParsing bool
// Skip argument reordering which attempts to move flags before arguments,
// but only works if all flags appear after all arguments. This behavior was
// removed n version 2 since it only works under specific conditions so we
// backport here by exposing it as an option for compatibility.
SkipArgReorder bool
// Boolean to hide built-in help command
HideHelp bool
// Boolean to hide this command from help or completion
Hidden bool
// Full name of command for help, defaults to full command name, including parent commands.
HelpName string
commandNamePath []string
// CustomHelpTemplate the text template for the command help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
CustomHelpTemplate string
}
type CommandsByName []Command
func (c CommandsByName) Len() int {
return len(c)
}
func (c CommandsByName) Less(i, j int) bool {
return c[i].Name < c[j].Name
}
func (c CommandsByName) Swap(i, j int) {
c[i], c[j] = c[j], c[i]
}
// FullName returns the full name of the command.
// For subcommands this ensures that parent commands are part of the command path
func (c Command) FullName() string {
if c.commandNamePath == nil {
return c.Name
}
return strings.Join(c.commandNamePath, " ")
}
// Commands is a slice of Command
type Commands []Command
// Run invokes the command given the context, parses ctx.Args() to generate command-specific flags
func (c Command) Run(ctx *Context) (err error) {
if len(c.Subcommands) > 0 {
return c.startApp(ctx)
}
if !c.HideHelp && (HelpFlag != BoolFlag{}) {
// append help to flags
c.Flags = append(
c.Flags,
HelpFlag,
)
}
set, err := flagSet(c.Name, c.Flags)
if err != nil {
return err
}
set.SetOutput(ioutil.Discard)
if c.SkipFlagParsing {
err = set.Parse(append([]string{"--"}, ctx.Args().Tail()...))
} else if !c.SkipArgReorder {
firstFlagIndex := -1
terminatorIndex := -1
for index, arg := range ctx.Args() {
if arg == "--" {
terminatorIndex = index
break
} else if arg == "-" {
// Do nothing. A dash alone is not really a flag.
continue
} else if strings.HasPrefix(arg, "-") && firstFlagIndex == -1 {
firstFlagIndex = index
}
}
if firstFlagIndex > -1 {
args := ctx.Args()
regularArgs := make([]string, len(args[1:firstFlagIndex]))
copy(regularArgs, args[1:firstFlagIndex])
var flagArgs []string
if terminatorIndex > -1 {
flagArgs = args[firstFlagIndex:terminatorIndex]
regularArgs = append(regularArgs, args[terminatorIndex:]...)
} else {
flagArgs = args[firstFlagIndex:]
}
err = set.Parse(append(flagArgs, regularArgs...))
} else {
err = set.Parse(ctx.Args().Tail())
}
} else {
err = set.Parse(ctx.Args().Tail())
}
nerr := normalizeFlags(c.Flags, set)
if nerr != nil {
fmt.Fprintln(ctx.App.Writer, nerr)
fmt.Fprintln(ctx.App.Writer)
ShowCommandHelp(ctx, c.Name)
return nerr
}
context := NewContext(ctx.App, set, ctx)
context.Command = c
if checkCommandCompletions(context, c.Name) {
return nil
}
if err != nil {
if c.OnUsageError != nil {
err := c.OnUsageError(context, err, false)
HandleExitCoder(err)
return err
}
fmt.Fprintln(context.App.Writer, "Incorrect Usage:", err.Error())
fmt.Fprintln(context.App.Writer)
ShowCommandHelp(context, c.Name)
return err
}
if checkCommandHelp(context, c.Name) {
return nil
}
if c.After != nil {
defer func() {
afterErr := c.After(context)
if afterErr != nil {
HandleExitCoder(err)
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if c.Before != nil {
err = c.Before(context)
if err != nil {
ShowCommandHelp(context, c.Name)
HandleExitCoder(err)
return err
}
}
if c.Action == nil {
c.Action = helpSubcommand.Action
}
err = HandleAction(c.Action, context)
if err != nil {
HandleExitCoder(err)
}
return err
}
// Names returns the names including short names and aliases.
func (c Command) Names() []string {
names := []string{c.Name}
if c.ShortName != "" {
names = append(names, c.ShortName)
}
return append(names, c.Aliases...)
}
// HasName returns true if Command.Name or Command.ShortName matches given name
func (c Command) HasName(name string) bool {
for _, n := range c.Names() {
if n == name {
return true
}
}
return false
}
func (c Command) startApp(ctx *Context) error {
app := NewApp()
app.Metadata = ctx.App.Metadata
// set the name and usage
app.Name = fmt.Sprintf("%s %s", ctx.App.Name, c.Name)
if c.HelpName == "" {
app.HelpName = c.HelpName
} else {
app.HelpName = app.Name
}
app.Usage = c.Usage
app.Description = c.Description
app.ArgsUsage = c.ArgsUsage
// set CommandNotFound
app.CommandNotFound = ctx.App.CommandNotFound
app.CustomAppHelpTemplate = c.CustomHelpTemplate
// set the flags and commands
app.Commands = c.Subcommands
app.Flags = c.Flags
app.HideHelp = c.HideHelp
app.Version = ctx.App.Version
app.HideVersion = ctx.App.HideVersion
app.Compiled = ctx.App.Compiled
app.Author = ctx.App.Author
app.Email = ctx.App.Email
app.Writer = ctx.App.Writer
app.ErrWriter = ctx.App.ErrWriter
app.categories = CommandCategories{}
for _, command := range c.Subcommands {
app.categories = app.categories.AddCommand(command.Category, command)
}
sort.Sort(app.categories)
// bash completion
app.EnableBashCompletion = ctx.App.EnableBashCompletion
if c.BashComplete != nil {
app.BashComplete = c.BashComplete
}
// set the actions
app.Before = c.Before
app.After = c.After
if c.Action != nil {
app.Action = c.Action
} else {
app.Action = helpSubcommand.Action
}
app.OnUsageError = c.OnUsageError
for index, cc := range app.Commands {
app.Commands[index].commandNamePath = []string{c.Name, cc.Name}
}
return app.RunAsSubcommand(ctx)
}
// VisibleFlags returns a slice of the Flags with Hidden=false
func (c Command) VisibleFlags() []Flag {
return visibleFlags(c.Flags)
}

278
vendor/github.com/urfave/cli/context.go generated vendored Normal file
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package cli
import (
"errors"
"flag"
"reflect"
"strings"
"syscall"
)
// Context is a type that is passed through to
// each Handler action in a cli application. Context
// can be used to retrieve context-specific Args and
// parsed command-line options.
type Context struct {
App *App
Command Command
shellComplete bool
flagSet *flag.FlagSet
setFlags map[string]bool
parentContext *Context
}
// NewContext creates a new context. For use in when invoking an App or Command action.
func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context {
c := &Context{App: app, flagSet: set, parentContext: parentCtx}
if parentCtx != nil {
c.shellComplete = parentCtx.shellComplete
}
return c
}
// NumFlags returns the number of flags set
func (c *Context) NumFlags() int {
return c.flagSet.NFlag()
}
// Set sets a context flag to a value.
func (c *Context) Set(name, value string) error {
c.setFlags = nil
return c.flagSet.Set(name, value)
}
// GlobalSet sets a context flag to a value on the global flagset
func (c *Context) GlobalSet(name, value string) error {
globalContext(c).setFlags = nil
return globalContext(c).flagSet.Set(name, value)
}
// IsSet determines if the flag was actually set
func (c *Context) IsSet(name string) bool {
if c.setFlags == nil {
c.setFlags = make(map[string]bool)
c.flagSet.Visit(func(f *flag.Flag) {
c.setFlags[f.Name] = true
})
c.flagSet.VisitAll(func(f *flag.Flag) {
if _, ok := c.setFlags[f.Name]; ok {
return
}
c.setFlags[f.Name] = false
})
// XXX hack to support IsSet for flags with EnvVar
//
// There isn't an easy way to do this with the current implementation since
// whether a flag was set via an environment variable is very difficult to
// determine here. Instead, we intend to introduce a backwards incompatible
// change in version 2 to add `IsSet` to the Flag interface to push the
// responsibility closer to where the information required to determine
// whether a flag is set by non-standard means such as environment
// variables is avaliable.
//
// See https://github.com/urfave/cli/issues/294 for additional discussion
flags := c.Command.Flags
if c.Command.Name == "" { // cannot == Command{} since it contains slice types
if c.App != nil {
flags = c.App.Flags
}
}
for _, f := range flags {
eachName(f.GetName(), func(name string) {
if isSet, ok := c.setFlags[name]; isSet || !ok {
return
}
val := reflect.ValueOf(f)
if val.Kind() == reflect.Ptr {
val = val.Elem()
}
envVarValue := val.FieldByName("EnvVar")
if !envVarValue.IsValid() {
return
}
eachName(envVarValue.String(), func(envVar string) {
envVar = strings.TrimSpace(envVar)
if _, ok := syscall.Getenv(envVar); ok {
c.setFlags[name] = true
return
}
})
})
}
}
return c.setFlags[name]
}
// GlobalIsSet determines if the global flag was actually set
func (c *Context) GlobalIsSet(name string) bool {
ctx := c
if ctx.parentContext != nil {
ctx = ctx.parentContext
}
for ; ctx != nil; ctx = ctx.parentContext {
if ctx.IsSet(name) {
return true
}
}
return false
}
// FlagNames returns a slice of flag names used in this context.
func (c *Context) FlagNames() (names []string) {
for _, flag := range c.Command.Flags {
name := strings.Split(flag.GetName(), ",")[0]
if name == "help" {
continue
}
names = append(names, name)
}
return
}
// GlobalFlagNames returns a slice of global flag names used by the app.
func (c *Context) GlobalFlagNames() (names []string) {
for _, flag := range c.App.Flags {
name := strings.Split(flag.GetName(), ",")[0]
if name == "help" || name == "version" {
continue
}
names = append(names, name)
}
return
}
// Parent returns the parent context, if any
func (c *Context) Parent() *Context {
return c.parentContext
}
// value returns the value of the flag coressponding to `name`
func (c *Context) value(name string) interface{} {
return c.flagSet.Lookup(name).Value.(flag.Getter).Get()
}
// Args contains apps console arguments
type Args []string
// Args returns the command line arguments associated with the context.
func (c *Context) Args() Args {
args := Args(c.flagSet.Args())
return args
}
// NArg returns the number of the command line arguments.
func (c *Context) NArg() int {
return len(c.Args())
}
// Get returns the nth argument, or else a blank string
func (a Args) Get(n int) string {
if len(a) > n {
return a[n]
}
return ""
}
// First returns the first argument, or else a blank string
func (a Args) First() string {
return a.Get(0)
}
// Tail returns the rest of the arguments (not the first one)
// or else an empty string slice
func (a Args) Tail() []string {
if len(a) >= 2 {
return []string(a)[1:]
}
return []string{}
}
// Present checks if there are any arguments present
func (a Args) Present() bool {
return len(a) != 0
}
// Swap swaps arguments at the given indexes
func (a Args) Swap(from, to int) error {
if from >= len(a) || to >= len(a) {
return errors.New("index out of range")
}
a[from], a[to] = a[to], a[from]
return nil
}
func globalContext(ctx *Context) *Context {
if ctx == nil {
return nil
}
for {
if ctx.parentContext == nil {
return ctx
}
ctx = ctx.parentContext
}
}
func lookupGlobalFlagSet(name string, ctx *Context) *flag.FlagSet {
if ctx.parentContext != nil {
ctx = ctx.parentContext
}
for ; ctx != nil; ctx = ctx.parentContext {
if f := ctx.flagSet.Lookup(name); f != nil {
return ctx.flagSet
}
}
return nil
}
func copyFlag(name string, ff *flag.Flag, set *flag.FlagSet) {
switch ff.Value.(type) {
case *StringSlice:
default:
set.Set(name, ff.Value.String())
}
}
func normalizeFlags(flags []Flag, set *flag.FlagSet) error {
visited := make(map[string]bool)
set.Visit(func(f *flag.Flag) {
visited[f.Name] = true
})
for _, f := range flags {
parts := strings.Split(f.GetName(), ",")
if len(parts) == 1 {
continue
}
var ff *flag.Flag
for _, name := range parts {
name = strings.Trim(name, " ")
if visited[name] {
if ff != nil {
return errors.New("Cannot use two forms of the same flag: " + name + " " + ff.Name)
}
ff = set.Lookup(name)
}
}
if ff == nil {
continue
}
for _, name := range parts {
name = strings.Trim(name, " ")
if !visited[name] {
copyFlag(name, ff, set)
}
}
}
return nil
}

115
vendor/github.com/urfave/cli/errors.go generated vendored Normal file
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package cli
import (
"fmt"
"io"
"os"
"strings"
)
// OsExiter is the function used when the app exits. If not set defaults to os.Exit.
var OsExiter = os.Exit
// ErrWriter is used to write errors to the user. This can be anything
// implementing the io.Writer interface and defaults to os.Stderr.
var ErrWriter io.Writer = os.Stderr
// MultiError is an error that wraps multiple errors.
type MultiError struct {
Errors []error
}
// NewMultiError creates a new MultiError. Pass in one or more errors.
func NewMultiError(err ...error) MultiError {
return MultiError{Errors: err}
}
// Error implements the error interface.
func (m MultiError) Error() string {
errs := make([]string, len(m.Errors))
for i, err := range m.Errors {
errs[i] = err.Error()
}
return strings.Join(errs, "\n")
}
type ErrorFormatter interface {
Format(s fmt.State, verb rune)
}
// ExitCoder is the interface checked by `App` and `Command` for a custom exit
// code
type ExitCoder interface {
error
ExitCode() int
}
// ExitError fulfills both the builtin `error` interface and `ExitCoder`
type ExitError struct {
exitCode int
message interface{}
}
// NewExitError makes a new *ExitError
func NewExitError(message interface{}, exitCode int) *ExitError {
return &ExitError{
exitCode: exitCode,
message: message,
}
}
// Error returns the string message, fulfilling the interface required by
// `error`
func (ee *ExitError) Error() string {
return fmt.Sprintf("%v", ee.message)
}
// ExitCode returns the exit code, fulfilling the interface required by
// `ExitCoder`
func (ee *ExitError) ExitCode() int {
return ee.exitCode
}
// HandleExitCoder checks if the error fulfills the ExitCoder interface, and if
// so prints the error to stderr (if it is non-empty) and calls OsExiter with the
// given exit code. If the given error is a MultiError, then this func is
// called on all members of the Errors slice and calls OsExiter with the last exit code.
func HandleExitCoder(err error) {
if err == nil {
return
}
if exitErr, ok := err.(ExitCoder); ok {
if err.Error() != "" {
if _, ok := exitErr.(ErrorFormatter); ok {
fmt.Fprintf(ErrWriter, "%+v\n", err)
} else {
fmt.Fprintln(ErrWriter, err)
}
}
OsExiter(exitErr.ExitCode())
return
}
if multiErr, ok := err.(MultiError); ok {
code := handleMultiError(multiErr)
OsExiter(code)
return
}
}
func handleMultiError(multiErr MultiError) int {
code := 1
for _, merr := range multiErr.Errors {
if multiErr2, ok := merr.(MultiError); ok {
code = handleMultiError(multiErr2)
} else {
fmt.Fprintln(ErrWriter, merr)
if exitErr, ok := merr.(ExitCoder); ok {
code = exitErr.ExitCode()
}
}
}
return code
}

93
vendor/github.com/urfave/cli/flag-types.json generated vendored Normal file
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[
{
"name": "Bool",
"type": "bool",
"value": false,
"context_default": "false",
"parser": "strconv.ParseBool(f.Value.String())"
},
{
"name": "BoolT",
"type": "bool",
"value": false,
"doctail": " that is true by default",
"context_default": "false",
"parser": "strconv.ParseBool(f.Value.String())"
},
{
"name": "Duration",
"type": "time.Duration",
"doctail": " (see https://golang.org/pkg/time/#ParseDuration)",
"context_default": "0",
"parser": "time.ParseDuration(f.Value.String())"
},
{
"name": "Float64",
"type": "float64",
"context_default": "0",
"parser": "strconv.ParseFloat(f.Value.String(), 64)"
},
{
"name": "Generic",
"type": "Generic",
"dest": false,
"context_default": "nil",
"context_type": "interface{}"
},
{
"name": "Int64",
"type": "int64",
"context_default": "0",
"parser": "strconv.ParseInt(f.Value.String(), 0, 64)"
},
{
"name": "Int",
"type": "int",
"context_default": "0",
"parser": "strconv.ParseInt(f.Value.String(), 0, 64)",
"parser_cast": "int(parsed)"
},
{
"name": "IntSlice",
"type": "*IntSlice",
"dest": false,
"context_default": "nil",
"context_type": "[]int",
"parser": "(f.Value.(*IntSlice)).Value(), error(nil)"
},
{
"name": "Int64Slice",
"type": "*Int64Slice",
"dest": false,
"context_default": "nil",
"context_type": "[]int64",
"parser": "(f.Value.(*Int64Slice)).Value(), error(nil)"
},
{
"name": "String",
"type": "string",
"context_default": "\"\"",
"parser": "f.Value.String(), error(nil)"
},
{
"name": "StringSlice",
"type": "*StringSlice",
"dest": false,
"context_default": "nil",
"context_type": "[]string",
"parser": "(f.Value.(*StringSlice)).Value(), error(nil)"
},
{
"name": "Uint64",
"type": "uint64",
"context_default": "0",
"parser": "strconv.ParseUint(f.Value.String(), 0, 64)"
},
{
"name": "Uint",
"type": "uint",
"context_default": "0",
"parser": "strconv.ParseUint(f.Value.String(), 0, 64)",
"parser_cast": "uint(parsed)"
}
]

799
vendor/github.com/urfave/cli/flag.go generated vendored Normal file
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package cli
import (
"flag"
"fmt"
"reflect"
"runtime"
"strconv"
"strings"
"syscall"
"time"
)
const defaultPlaceholder = "value"
// BashCompletionFlag enables bash-completion for all commands and subcommands
var BashCompletionFlag Flag = BoolFlag{
Name: "generate-bash-completion",
Hidden: true,
}
// VersionFlag prints the version for the application
var VersionFlag Flag = BoolFlag{
Name: "version, v",
Usage: "print the version",
}
// HelpFlag prints the help for all commands and subcommands
// Set to the zero value (BoolFlag{}) to disable flag -- keeps subcommand
// unless HideHelp is set to true)
var HelpFlag Flag = BoolFlag{
Name: "help, h",
Usage: "show help",
}
// FlagStringer converts a flag definition to a string. This is used by help
// to display a flag.
var FlagStringer FlagStringFunc = stringifyFlag
// FlagsByName is a slice of Flag.
type FlagsByName []Flag
func (f FlagsByName) Len() int {
return len(f)
}
func (f FlagsByName) Less(i, j int) bool {
return f[i].GetName() < f[j].GetName()
}
func (f FlagsByName) Swap(i, j int) {
f[i], f[j] = f[j], f[i]
}
// Flag is a common interface related to parsing flags in cli.
// For more advanced flag parsing techniques, it is recommended that
// this interface be implemented.
type Flag interface {
fmt.Stringer
// Apply Flag settings to the given flag set
Apply(*flag.FlagSet)
GetName() string
}
// errorableFlag is an interface that allows us to return errors during apply
// it allows flags defined in this library to return errors in a fashion backwards compatible
// TODO remove in v2 and modify the existing Flag interface to return errors
type errorableFlag interface {
Flag
ApplyWithError(*flag.FlagSet) error
}
func flagSet(name string, flags []Flag) (*flag.FlagSet, error) {
set := flag.NewFlagSet(name, flag.ContinueOnError)
for _, f := range flags {
//TODO remove in v2 when errorableFlag is removed
if ef, ok := f.(errorableFlag); ok {
if err := ef.ApplyWithError(set); err != nil {
return nil, err
}
} else {
f.Apply(set)
}
}
return set, nil
}
func eachName(longName string, fn func(string)) {
parts := strings.Split(longName, ",")
for _, name := range parts {
name = strings.Trim(name, " ")
fn(name)
}
}
// Generic is a generic parseable type identified by a specific flag
type Generic interface {
Set(value string) error
String() string
}
// Apply takes the flagset and calls Set on the generic flag with the value
// provided by the user for parsing by the flag
// Ignores parsing errors
func (f GenericFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError takes the flagset and calls Set on the generic flag with the value
// provided by the user for parsing by the flag
func (f GenericFlag) ApplyWithError(set *flag.FlagSet) error {
val := f.Value
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
if err := val.Set(envVal); err != nil {
return fmt.Errorf("could not parse %s as value for flag %s: %s", envVal, f.Name, err)
}
break
}
}
}
eachName(f.Name, func(name string) {
set.Var(f.Value, name, f.Usage)
})
return nil
}
// StringSlice is an opaque type for []string to satisfy flag.Value and flag.Getter
type StringSlice []string
// Set appends the string value to the list of values
func (f *StringSlice) Set(value string) error {
*f = append(*f, value)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *StringSlice) String() string {
return fmt.Sprintf("%s", *f)
}
// Value returns the slice of strings set by this flag
func (f *StringSlice) Value() []string {
return *f
}
// Get returns the slice of strings set by this flag
func (f *StringSlice) Get() interface{} {
return *f
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f StringSliceFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f StringSliceFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
newVal := &StringSlice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
if err := newVal.Set(s); err != nil {
return fmt.Errorf("could not parse %s as string value for flag %s: %s", envVal, f.Name, err)
}
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &StringSlice{}
}
set.Var(f.Value, name, f.Usage)
})
return nil
}
// IntSlice is an opaque type for []int to satisfy flag.Value and flag.Getter
type IntSlice []int
// Set parses the value into an integer and appends it to the list of values
func (f *IntSlice) Set(value string) error {
tmp, err := strconv.Atoi(value)
if err != nil {
return err
}
*f = append(*f, tmp)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *IntSlice) String() string {
return fmt.Sprintf("%#v", *f)
}
// Value returns the slice of ints set by this flag
func (f *IntSlice) Value() []int {
return *f
}
// Get returns the slice of ints set by this flag
func (f *IntSlice) Get() interface{} {
return *f
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f IntSliceFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f IntSliceFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
newVal := &IntSlice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
if err := newVal.Set(s); err != nil {
return fmt.Errorf("could not parse %s as int slice value for flag %s: %s", envVal, f.Name, err)
}
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &IntSlice{}
}
set.Var(f.Value, name, f.Usage)
})
return nil
}
// Int64Slice is an opaque type for []int to satisfy flag.Value and flag.Getter
type Int64Slice []int64
// Set parses the value into an integer and appends it to the list of values
func (f *Int64Slice) Set(value string) error {
tmp, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
*f = append(*f, tmp)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *Int64Slice) String() string {
return fmt.Sprintf("%#v", *f)
}
// Value returns the slice of ints set by this flag
func (f *Int64Slice) Value() []int64 {
return *f
}
// Get returns the slice of ints set by this flag
func (f *Int64Slice) Get() interface{} {
return *f
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f Int64SliceFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f Int64SliceFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
newVal := &Int64Slice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
if err := newVal.Set(s); err != nil {
return fmt.Errorf("could not parse %s as int64 slice value for flag %s: %s", envVal, f.Name, err)
}
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &Int64Slice{}
}
set.Var(f.Value, name, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f BoolFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f BoolFlag) ApplyWithError(set *flag.FlagSet) error {
val := false
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
if envVal == "" {
val = false
break
}
envValBool, err := strconv.ParseBool(envVal)
if err != nil {
return fmt.Errorf("could not parse %s as bool value for flag %s: %s", envVal, f.Name, err)
}
val = envValBool
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.BoolVar(f.Destination, name, val, f.Usage)
return
}
set.Bool(name, val, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f BoolTFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f BoolTFlag) ApplyWithError(set *flag.FlagSet) error {
val := true
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
if envVal == "" {
val = false
break
}
envValBool, err := strconv.ParseBool(envVal)
if err != nil {
return fmt.Errorf("could not parse %s as bool value for flag %s: %s", envVal, f.Name, err)
}
val = envValBool
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.BoolVar(f.Destination, name, val, f.Usage)
return
}
set.Bool(name, val, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f StringFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f StringFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
f.Value = envVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.StringVar(f.Destination, name, f.Value, f.Usage)
return
}
set.String(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f IntFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f IntFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValInt, err := strconv.ParseInt(envVal, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %s as int value for flag %s: %s", envVal, f.Name, err)
}
f.Value = int(envValInt)
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.IntVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Int(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f Int64Flag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f Int64Flag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValInt, err := strconv.ParseInt(envVal, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %s as int value for flag %s: %s", envVal, f.Name, err)
}
f.Value = envValInt
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Int64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Int64(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f UintFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f UintFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValInt, err := strconv.ParseUint(envVal, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %s as uint value for flag %s: %s", envVal, f.Name, err)
}
f.Value = uint(envValInt)
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.UintVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Uint(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f Uint64Flag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f Uint64Flag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValInt, err := strconv.ParseUint(envVal, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %s as uint64 value for flag %s: %s", envVal, f.Name, err)
}
f.Value = uint64(envValInt)
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Uint64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Uint64(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f DurationFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f DurationFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValDuration, err := time.ParseDuration(envVal)
if err != nil {
return fmt.Errorf("could not parse %s as duration for flag %s: %s", envVal, f.Name, err)
}
f.Value = envValDuration
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.DurationVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Duration(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f Float64Flag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f Float64Flag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValFloat, err := strconv.ParseFloat(envVal, 10)
if err != nil {
return fmt.Errorf("could not parse %s as float64 value for flag %s: %s", envVal, f.Name, err)
}
f.Value = float64(envValFloat)
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Float64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Float64(name, f.Value, f.Usage)
})
return nil
}
func visibleFlags(fl []Flag) []Flag {
visible := []Flag{}
for _, flag := range fl {
field := flagValue(flag).FieldByName("Hidden")
if !field.IsValid() || !field.Bool() {
visible = append(visible, flag)
}
}
return visible
}
func prefixFor(name string) (prefix string) {
if len(name) == 1 {
prefix = "-"
} else {
prefix = "--"
}
return
}
// Returns the placeholder, if any, and the unquoted usage string.
func unquoteUsage(usage string) (string, string) {
for i := 0; i < len(usage); i++ {
if usage[i] == '`' {
for j := i + 1; j < len(usage); j++ {
if usage[j] == '`' {
name := usage[i+1 : j]
usage = usage[:i] + name + usage[j+1:]
return name, usage
}
}
break
}
}
return "", usage
}
func prefixedNames(fullName, placeholder string) string {
var prefixed string
parts := strings.Split(fullName, ",")
for i, name := range parts {
name = strings.Trim(name, " ")
prefixed += prefixFor(name) + name
if placeholder != "" {
prefixed += " " + placeholder
}
if i < len(parts)-1 {
prefixed += ", "
}
}
return prefixed
}
func withEnvHint(envVar, str string) string {
envText := ""
if envVar != "" {
prefix := "$"
suffix := ""
sep := ", $"
if runtime.GOOS == "windows" {
prefix = "%"
suffix = "%"
sep = "%, %"
}
envText = fmt.Sprintf(" [%s%s%s]", prefix, strings.Join(strings.Split(envVar, ","), sep), suffix)
}
return str + envText
}
func flagValue(f Flag) reflect.Value {
fv := reflect.ValueOf(f)
for fv.Kind() == reflect.Ptr {
fv = reflect.Indirect(fv)
}
return fv
}
func stringifyFlag(f Flag) string {
fv := flagValue(f)
switch f.(type) {
case IntSliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyIntSliceFlag(f.(IntSliceFlag)))
case Int64SliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyInt64SliceFlag(f.(Int64SliceFlag)))
case StringSliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyStringSliceFlag(f.(StringSliceFlag)))
}
placeholder, usage := unquoteUsage(fv.FieldByName("Usage").String())
needsPlaceholder := false
defaultValueString := ""
if val := fv.FieldByName("Value"); val.IsValid() {
needsPlaceholder = true
defaultValueString = fmt.Sprintf(" (default: %v)", val.Interface())
if val.Kind() == reflect.String && val.String() != "" {
defaultValueString = fmt.Sprintf(" (default: %q)", val.String())
}
}
if defaultValueString == " (default: )" {
defaultValueString = ""
}
if needsPlaceholder && placeholder == "" {
placeholder = defaultPlaceholder
}
usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultValueString))
return withEnvHint(fv.FieldByName("EnvVar").String(),
fmt.Sprintf("%s\t%s", prefixedNames(fv.FieldByName("Name").String(), placeholder), usageWithDefault))
}
func stringifyIntSliceFlag(f IntSliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, fmt.Sprintf("%d", i))
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifyInt64SliceFlag(f Int64SliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, fmt.Sprintf("%d", i))
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifyStringSliceFlag(f StringSliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, s := range f.Value.Value() {
if len(s) > 0 {
defaultVals = append(defaultVals, fmt.Sprintf("%q", s))
}
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifySliceFlag(usage, name string, defaultVals []string) string {
placeholder, usage := unquoteUsage(usage)
if placeholder == "" {
placeholder = defaultPlaceholder
}
defaultVal := ""
if len(defaultVals) > 0 {
defaultVal = fmt.Sprintf(" (default: %s)", strings.Join(defaultVals, ", "))
}
usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultVal))
return fmt.Sprintf("%s\t%s", prefixedNames(name, placeholder), usageWithDefault)
}

627
vendor/github.com/urfave/cli/flag_generated.go generated vendored Normal file
View File

@ -0,0 +1,627 @@
package cli
import (
"flag"
"strconv"
"time"
)
// WARNING: This file is generated!
// BoolFlag is a flag with type bool
type BoolFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Destination *bool
}
// String returns a readable representation of this value
// (for usage defaults)
func (f BoolFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f BoolFlag) GetName() string {
return f.Name
}
// Bool looks up the value of a local BoolFlag, returns
// false if not found
func (c *Context) Bool(name string) bool {
return lookupBool(name, c.flagSet)
}
// GlobalBool looks up the value of a global BoolFlag, returns
// false if not found
func (c *Context) GlobalBool(name string) bool {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupBool(name, fs)
}
return false
}
func lookupBool(name string, set *flag.FlagSet) bool {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseBool(f.Value.String())
if err != nil {
return false
}
return parsed
}
return false
}
// BoolTFlag is a flag with type bool that is true by default
type BoolTFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Destination *bool
}
// String returns a readable representation of this value
// (for usage defaults)
func (f BoolTFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f BoolTFlag) GetName() string {
return f.Name
}
// BoolT looks up the value of a local BoolTFlag, returns
// false if not found
func (c *Context) BoolT(name string) bool {
return lookupBoolT(name, c.flagSet)
}
// GlobalBoolT looks up the value of a global BoolTFlag, returns
// false if not found
func (c *Context) GlobalBoolT(name string) bool {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupBoolT(name, fs)
}
return false
}
func lookupBoolT(name string, set *flag.FlagSet) bool {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseBool(f.Value.String())
if err != nil {
return false
}
return parsed
}
return false
}
// DurationFlag is a flag with type time.Duration (see https://golang.org/pkg/time/#ParseDuration)
type DurationFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value time.Duration
Destination *time.Duration
}
// String returns a readable representation of this value
// (for usage defaults)
func (f DurationFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f DurationFlag) GetName() string {
return f.Name
}
// Duration looks up the value of a local DurationFlag, returns
// 0 if not found
func (c *Context) Duration(name string) time.Duration {
return lookupDuration(name, c.flagSet)
}
// GlobalDuration looks up the value of a global DurationFlag, returns
// 0 if not found
func (c *Context) GlobalDuration(name string) time.Duration {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupDuration(name, fs)
}
return 0
}
func lookupDuration(name string, set *flag.FlagSet) time.Duration {
f := set.Lookup(name)
if f != nil {
parsed, err := time.ParseDuration(f.Value.String())
if err != nil {
return 0
}
return parsed
}
return 0
}
// Float64Flag is a flag with type float64
type Float64Flag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value float64
Destination *float64
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Float64Flag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Float64Flag) GetName() string {
return f.Name
}
// Float64 looks up the value of a local Float64Flag, returns
// 0 if not found
func (c *Context) Float64(name string) float64 {
return lookupFloat64(name, c.flagSet)
}
// GlobalFloat64 looks up the value of a global Float64Flag, returns
// 0 if not found
func (c *Context) GlobalFloat64(name string) float64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupFloat64(name, fs)
}
return 0
}
func lookupFloat64(name string, set *flag.FlagSet) float64 {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseFloat(f.Value.String(), 64)
if err != nil {
return 0
}
return parsed
}
return 0
}
// GenericFlag is a flag with type Generic
type GenericFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value Generic
}
// String returns a readable representation of this value
// (for usage defaults)
func (f GenericFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f GenericFlag) GetName() string {
return f.Name
}
// Generic looks up the value of a local GenericFlag, returns
// nil if not found
func (c *Context) Generic(name string) interface{} {
return lookupGeneric(name, c.flagSet)
}
// GlobalGeneric looks up the value of a global GenericFlag, returns
// nil if not found
func (c *Context) GlobalGeneric(name string) interface{} {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupGeneric(name, fs)
}
return nil
}
func lookupGeneric(name string, set *flag.FlagSet) interface{} {
f := set.Lookup(name)
if f != nil {
parsed, err := f.Value, error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// Int64Flag is a flag with type int64
type Int64Flag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value int64
Destination *int64
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Int64Flag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Int64Flag) GetName() string {
return f.Name
}
// Int64 looks up the value of a local Int64Flag, returns
// 0 if not found
func (c *Context) Int64(name string) int64 {
return lookupInt64(name, c.flagSet)
}
// GlobalInt64 looks up the value of a global Int64Flag, returns
// 0 if not found
func (c *Context) GlobalInt64(name string) int64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupInt64(name, fs)
}
return 0
}
func lookupInt64(name string, set *flag.FlagSet) int64 {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseInt(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return parsed
}
return 0
}
// IntFlag is a flag with type int
type IntFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value int
Destination *int
}
// String returns a readable representation of this value
// (for usage defaults)
func (f IntFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f IntFlag) GetName() string {
return f.Name
}
// Int looks up the value of a local IntFlag, returns
// 0 if not found
func (c *Context) Int(name string) int {
return lookupInt(name, c.flagSet)
}
// GlobalInt looks up the value of a global IntFlag, returns
// 0 if not found
func (c *Context) GlobalInt(name string) int {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupInt(name, fs)
}
return 0
}
func lookupInt(name string, set *flag.FlagSet) int {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseInt(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return int(parsed)
}
return 0
}
// IntSliceFlag is a flag with type *IntSlice
type IntSliceFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value *IntSlice
}
// String returns a readable representation of this value
// (for usage defaults)
func (f IntSliceFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f IntSliceFlag) GetName() string {
return f.Name
}
// IntSlice looks up the value of a local IntSliceFlag, returns
// nil if not found
func (c *Context) IntSlice(name string) []int {
return lookupIntSlice(name, c.flagSet)
}
// GlobalIntSlice looks up the value of a global IntSliceFlag, returns
// nil if not found
func (c *Context) GlobalIntSlice(name string) []int {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupIntSlice(name, fs)
}
return nil
}
func lookupIntSlice(name string, set *flag.FlagSet) []int {
f := set.Lookup(name)
if f != nil {
parsed, err := (f.Value.(*IntSlice)).Value(), error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// Int64SliceFlag is a flag with type *Int64Slice
type Int64SliceFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value *Int64Slice
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Int64SliceFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Int64SliceFlag) GetName() string {
return f.Name
}
// Int64Slice looks up the value of a local Int64SliceFlag, returns
// nil if not found
func (c *Context) Int64Slice(name string) []int64 {
return lookupInt64Slice(name, c.flagSet)
}
// GlobalInt64Slice looks up the value of a global Int64SliceFlag, returns
// nil if not found
func (c *Context) GlobalInt64Slice(name string) []int64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupInt64Slice(name, fs)
}
return nil
}
func lookupInt64Slice(name string, set *flag.FlagSet) []int64 {
f := set.Lookup(name)
if f != nil {
parsed, err := (f.Value.(*Int64Slice)).Value(), error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// StringFlag is a flag with type string
type StringFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value string
Destination *string
}
// String returns a readable representation of this value
// (for usage defaults)
func (f StringFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f StringFlag) GetName() string {
return f.Name
}
// String looks up the value of a local StringFlag, returns
// "" if not found
func (c *Context) String(name string) string {
return lookupString(name, c.flagSet)
}
// GlobalString looks up the value of a global StringFlag, returns
// "" if not found
func (c *Context) GlobalString(name string) string {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupString(name, fs)
}
return ""
}
func lookupString(name string, set *flag.FlagSet) string {
f := set.Lookup(name)
if f != nil {
parsed, err := f.Value.String(), error(nil)
if err != nil {
return ""
}
return parsed
}
return ""
}
// StringSliceFlag is a flag with type *StringSlice
type StringSliceFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value *StringSlice
}
// String returns a readable representation of this value
// (for usage defaults)
func (f StringSliceFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f StringSliceFlag) GetName() string {
return f.Name
}
// StringSlice looks up the value of a local StringSliceFlag, returns
// nil if not found
func (c *Context) StringSlice(name string) []string {
return lookupStringSlice(name, c.flagSet)
}
// GlobalStringSlice looks up the value of a global StringSliceFlag, returns
// nil if not found
func (c *Context) GlobalStringSlice(name string) []string {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupStringSlice(name, fs)
}
return nil
}
func lookupStringSlice(name string, set *flag.FlagSet) []string {
f := set.Lookup(name)
if f != nil {
parsed, err := (f.Value.(*StringSlice)).Value(), error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// Uint64Flag is a flag with type uint64
type Uint64Flag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value uint64
Destination *uint64
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Uint64Flag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Uint64Flag) GetName() string {
return f.Name
}
// Uint64 looks up the value of a local Uint64Flag, returns
// 0 if not found
func (c *Context) Uint64(name string) uint64 {
return lookupUint64(name, c.flagSet)
}
// GlobalUint64 looks up the value of a global Uint64Flag, returns
// 0 if not found
func (c *Context) GlobalUint64(name string) uint64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupUint64(name, fs)
}
return 0
}
func lookupUint64(name string, set *flag.FlagSet) uint64 {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseUint(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return parsed
}
return 0
}
// UintFlag is a flag with type uint
type UintFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value uint
Destination *uint
}
// String returns a readable representation of this value
// (for usage defaults)
func (f UintFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f UintFlag) GetName() string {
return f.Name
}
// Uint looks up the value of a local UintFlag, returns
// 0 if not found
func (c *Context) Uint(name string) uint {
return lookupUint(name, c.flagSet)
}
// GlobalUint looks up the value of a global UintFlag, returns
// 0 if not found
func (c *Context) GlobalUint(name string) uint {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupUint(name, fs)
}
return 0
}
func lookupUint(name string, set *flag.FlagSet) uint {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseUint(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return uint(parsed)
}
return 0
}

28
vendor/github.com/urfave/cli/funcs.go generated vendored Normal file
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@ -0,0 +1,28 @@
package cli
// BashCompleteFunc is an action to execute when the bash-completion flag is set
type BashCompleteFunc func(*Context)
// BeforeFunc is an action to execute before any subcommands are run, but after
// the context is ready if a non-nil error is returned, no subcommands are run
type BeforeFunc func(*Context) error
// AfterFunc is an action to execute after any subcommands are run, but after the
// subcommand has finished it is run even if Action() panics
type AfterFunc func(*Context) error
// ActionFunc is the action to execute when no subcommands are specified
type ActionFunc func(*Context) error
// CommandNotFoundFunc is executed if the proper command cannot be found
type CommandNotFoundFunc func(*Context, string)
// OnUsageErrorFunc is executed if an usage error occurs. This is useful for displaying
// customized usage error messages. This function is able to replace the
// original error messages. If this function is not set, the "Incorrect usage"
// is displayed and the execution is interrupted.
type OnUsageErrorFunc func(context *Context, err error, isSubcommand bool) error
// FlagStringFunc is used by the help generation to display a flag, which is
// expected to be a single line.
type FlagStringFunc func(Flag) string

255
vendor/github.com/urfave/cli/generate-flag-types generated vendored Executable file
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@ -0,0 +1,255 @@
#!/usr/bin/env python
"""
The flag types that ship with the cli library have many things in common, and
so we can take advantage of the `go generate` command to create much of the
source code from a list of definitions. These definitions attempt to cover
the parts that vary between flag types, and should evolve as needed.
An example of the minimum definition needed is:
{
"name": "SomeType",
"type": "sometype",
"context_default": "nil"
}
In this example, the code generated for the `cli` package will include a type
named `SomeTypeFlag` that is expected to wrap a value of type `sometype`.
Fetching values by name via `*cli.Context` will default to a value of `nil`.
A more complete, albeit somewhat redundant, example showing all available
definition keys is:
{
"name": "VeryMuchType",
"type": "*VeryMuchType",
"value": true,
"dest": false,
"doctail": " which really only wraps a []float64, oh well!",
"context_type": "[]float64",
"context_default": "nil",
"parser": "parseVeryMuchType(f.Value.String())",
"parser_cast": "[]float64(parsed)"
}
The meaning of each field is as follows:
name (string) - The type "name", which will be suffixed with
`Flag` when generating the type definition
for `cli` and the wrapper type for `altsrc`
type (string) - The type that the generated `Flag` type for `cli`
is expected to "contain" as its `.Value` member
value (bool) - Should the generated `cli` type have a `Value`
member?
dest (bool) - Should the generated `cli` type support a
destination pointer?
doctail (string) - Additional docs for the `cli` flag type comment
context_type (string) - The literal type used in the `*cli.Context`
reader func signature
context_default (string) - The literal value used as the default by the
`*cli.Context` reader funcs when no value is
present
parser (string) - Literal code used to parse the flag `f`,
expected to have a return signature of
(value, error)
parser_cast (string) - Literal code used to cast the `parsed` value
returned from the `parser` code
"""
from __future__ import print_function, unicode_literals
import argparse
import json
import os
import subprocess
import sys
import tempfile
import textwrap
class _FancyFormatter(argparse.ArgumentDefaultsHelpFormatter,
argparse.RawDescriptionHelpFormatter):
pass
def main(sysargs=sys.argv[:]):
parser = argparse.ArgumentParser(
description='Generate flag type code!',
formatter_class=_FancyFormatter)
parser.add_argument(
'package',
type=str, default='cli', choices=_WRITEFUNCS.keys(),
help='Package for which flag types will be generated'
)
parser.add_argument(
'-i', '--in-json',
type=argparse.FileType('r'),
default=sys.stdin,
help='Input JSON file which defines each type to be generated'
)
parser.add_argument(
'-o', '--out-go',
type=argparse.FileType('w'),
default=sys.stdout,
help='Output file/stream to which generated source will be written'
)
parser.epilog = __doc__
args = parser.parse_args(sysargs[1:])
_generate_flag_types(_WRITEFUNCS[args.package], args.out_go, args.in_json)
return 0
def _generate_flag_types(writefunc, output_go, input_json):
types = json.load(input_json)
tmp = tempfile.NamedTemporaryFile(suffix='.go', delete=False)
writefunc(tmp, types)
tmp.close()
new_content = subprocess.check_output(
['goimports', tmp.name]
).decode('utf-8')
print(new_content, file=output_go, end='')
output_go.flush()
os.remove(tmp.name)
def _set_typedef_defaults(typedef):
typedef.setdefault('doctail', '')
typedef.setdefault('context_type', typedef['type'])
typedef.setdefault('dest', True)
typedef.setdefault('value', True)
typedef.setdefault('parser', 'f.Value, error(nil)')
typedef.setdefault('parser_cast', 'parsed')
def _write_cli_flag_types(outfile, types):
_fwrite(outfile, """\
package cli
// WARNING: This file is generated!
""")
for typedef in types:
_set_typedef_defaults(typedef)
_fwrite(outfile, """\
// {name}Flag is a flag with type {type}{doctail}
type {name}Flag struct {{
Name string
Usage string
EnvVar string
Hidden bool
""".format(**typedef))
if typedef['value']:
_fwrite(outfile, """\
Value {type}
""".format(**typedef))
if typedef['dest']:
_fwrite(outfile, """\
Destination *{type}
""".format(**typedef))
_fwrite(outfile, "\n}\n\n")
_fwrite(outfile, """\
// String returns a readable representation of this value
// (for usage defaults)
func (f {name}Flag) String() string {{
return FlagStringer(f)
}}
// GetName returns the name of the flag
func (f {name}Flag) GetName() string {{
return f.Name
}}
// {name} looks up the value of a local {name}Flag, returns
// {context_default} if not found
func (c *Context) {name}(name string) {context_type} {{
return lookup{name}(name, c.flagSet)
}}
// Global{name} looks up the value of a global {name}Flag, returns
// {context_default} if not found
func (c *Context) Global{name}(name string) {context_type} {{
if fs := lookupGlobalFlagSet(name, c); fs != nil {{
return lookup{name}(name, fs)
}}
return {context_default}
}}
func lookup{name}(name string, set *flag.FlagSet) {context_type} {{
f := set.Lookup(name)
if f != nil {{
parsed, err := {parser}
if err != nil {{
return {context_default}
}}
return {parser_cast}
}}
return {context_default}
}}
""".format(**typedef))
def _write_altsrc_flag_types(outfile, types):
_fwrite(outfile, """\
package altsrc
import (
"gopkg.in/urfave/cli.v1"
)
// WARNING: This file is generated!
""")
for typedef in types:
_set_typedef_defaults(typedef)
_fwrite(outfile, """\
// {name}Flag is the flag type that wraps cli.{name}Flag to allow
// for other values to be specified
type {name}Flag struct {{
cli.{name}Flag
set *flag.FlagSet
}}
// New{name}Flag creates a new {name}Flag
func New{name}Flag(fl cli.{name}Flag) *{name}Flag {{
return &{name}Flag{{{name}Flag: fl, set: nil}}
}}
// Apply saves the flagSet for later usage calls, then calls the
// wrapped {name}Flag.Apply
func (f *{name}Flag) Apply(set *flag.FlagSet) {{
f.set = set
f.{name}Flag.Apply(set)
}}
// ApplyWithError saves the flagSet for later usage calls, then calls the
// wrapped {name}Flag.ApplyWithError
func (f *{name}Flag) ApplyWithError(set *flag.FlagSet) error {{
f.set = set
return f.{name}Flag.ApplyWithError(set)
}}
""".format(**typedef))
def _fwrite(outfile, text):
print(textwrap.dedent(text), end='', file=outfile)
_WRITEFUNCS = {
'cli': _write_cli_flag_types,
'altsrc': _write_altsrc_flag_types
}
if __name__ == '__main__':
sys.exit(main())

338
vendor/github.com/urfave/cli/help.go generated vendored Normal file
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@ -0,0 +1,338 @@
package cli
import (
"fmt"
"io"
"os"
"strings"
"text/tabwriter"
"text/template"
)
// AppHelpTemplate is the text template for the Default help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var AppHelpTemplate = `NAME:
{{.Name}}{{if .Usage}} - {{.Usage}}{{end}}
USAGE:
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Version}}{{if not .HideVersion}}
VERSION:
{{.Version}}{{end}}{{end}}{{if .Description}}
DESCRIPTION:
{{.Description}}{{end}}{{if len .Authors}}
AUTHOR{{with $length := len .Authors}}{{if ne 1 $length}}S{{end}}{{end}}:
{{range $index, $author := .Authors}}{{if $index}}
{{end}}{{$author}}{{end}}{{end}}{{if .VisibleCommands}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{end}}{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{end}}{{end}}{{if .VisibleFlags}}
GLOBAL OPTIONS:
{{range $index, $option := .VisibleFlags}}{{if $index}}
{{end}}{{$option}}{{end}}{{end}}{{if .Copyright}}
COPYRIGHT:
{{.Copyright}}{{end}}
`
// CommandHelpTemplate is the text template for the command help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var CommandHelpTemplate = `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Category}}
CATEGORY:
{{.Category}}{{end}}{{if .Description}}
DESCRIPTION:
{{.Description}}{{end}}{{if .VisibleFlags}}
OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}
`
// SubcommandHelpTemplate is the text template for the subcommand help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var SubcommandHelpTemplate = `NAME:
{{.HelpName}} - {{if .Description}}{{.Description}}{{else}}{{.Usage}}{{end}}
USAGE:
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{end}}{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}
{{end}}{{if .VisibleFlags}}
OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}
`
var helpCommand = Command{
Name: "help",
Aliases: []string{"h"},
Usage: "Shows a list of commands or help for one command",
ArgsUsage: "[command]",
Action: func(c *Context) error {
args := c.Args()
if args.Present() {
return ShowCommandHelp(c, args.First())
}
ShowAppHelp(c)
return nil
},
}
var helpSubcommand = Command{
Name: "help",
Aliases: []string{"h"},
Usage: "Shows a list of commands or help for one command",
ArgsUsage: "[command]",
Action: func(c *Context) error {
args := c.Args()
if args.Present() {
return ShowCommandHelp(c, args.First())
}
return ShowSubcommandHelp(c)
},
}
// Prints help for the App or Command
type helpPrinter func(w io.Writer, templ string, data interface{})
// Prints help for the App or Command with custom template function.
type helpPrinterCustom func(w io.Writer, templ string, data interface{}, customFunc map[string]interface{})
// HelpPrinter is a function that writes the help output. If not set a default
// is used. The function signature is:
// func(w io.Writer, templ string, data interface{})
var HelpPrinter helpPrinter = printHelp
// HelpPrinterCustom is same as HelpPrinter but
// takes a custom function for template function map.
var HelpPrinterCustom helpPrinterCustom = printHelpCustom
// VersionPrinter prints the version for the App
var VersionPrinter = printVersion
// ShowAppHelpAndExit - Prints the list of subcommands for the app and exits with exit code.
func ShowAppHelpAndExit(c *Context, exitCode int) {
ShowAppHelp(c)
os.Exit(exitCode)
}
// ShowAppHelp is an action that displays the help.
func ShowAppHelp(c *Context) (err error) {
if c.App.CustomAppHelpTemplate == "" {
HelpPrinter(c.App.Writer, AppHelpTemplate, c.App)
return
}
customAppData := func() map[string]interface{} {
if c.App.ExtraInfo == nil {
return nil
}
return map[string]interface{}{
"ExtraInfo": c.App.ExtraInfo,
}
}
HelpPrinterCustom(c.App.Writer, c.App.CustomAppHelpTemplate, c.App, customAppData())
return nil
}
// DefaultAppComplete prints the list of subcommands as the default app completion method
func DefaultAppComplete(c *Context) {
for _, command := range c.App.Commands {
if command.Hidden {
continue
}
for _, name := range command.Names() {
fmt.Fprintln(c.App.Writer, name)
}
}
}
// ShowCommandHelpAndExit - exits with code after showing help
func ShowCommandHelpAndExit(c *Context, command string, code int) {
ShowCommandHelp(c, command)
os.Exit(code)
}
// ShowCommandHelp prints help for the given command
func ShowCommandHelp(ctx *Context, command string) error {
// show the subcommand help for a command with subcommands
if command == "" {
HelpPrinter(ctx.App.Writer, SubcommandHelpTemplate, ctx.App)
return nil
}
for _, c := range ctx.App.Commands {
if c.HasName(command) {
if c.CustomHelpTemplate != "" {
HelpPrinterCustom(ctx.App.Writer, c.CustomHelpTemplate, c, nil)
} else {
HelpPrinter(ctx.App.Writer, CommandHelpTemplate, c)
}
return nil
}
}
if ctx.App.CommandNotFound == nil {
return NewExitError(fmt.Sprintf("No help topic for '%v'", command), 3)
}
ctx.App.CommandNotFound(ctx, command)
return nil
}
// ShowSubcommandHelp prints help for the given subcommand
func ShowSubcommandHelp(c *Context) error {
return ShowCommandHelp(c, c.Command.Name)
}
// ShowVersion prints the version number of the App
func ShowVersion(c *Context) {
VersionPrinter(c)
}
func printVersion(c *Context) {
fmt.Fprintf(c.App.Writer, "%v version %v\n", c.App.Name, c.App.Version)
}
// ShowCompletions prints the lists of commands within a given context
func ShowCompletions(c *Context) {
a := c.App
if a != nil && a.BashComplete != nil {
a.BashComplete(c)
}
}
// ShowCommandCompletions prints the custom completions for a given command
func ShowCommandCompletions(ctx *Context, command string) {
c := ctx.App.Command(command)
if c != nil && c.BashComplete != nil {
c.BashComplete(ctx)
}
}
func printHelpCustom(out io.Writer, templ string, data interface{}, customFunc map[string]interface{}) {
funcMap := template.FuncMap{
"join": strings.Join,
}
if customFunc != nil {
for key, value := range customFunc {
funcMap[key] = value
}
}
w := tabwriter.NewWriter(out, 1, 8, 2, ' ', 0)
t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
err := t.Execute(w, data)
if err != nil {
// If the writer is closed, t.Execute will fail, and there's nothing
// we can do to recover.
if os.Getenv("CLI_TEMPLATE_ERROR_DEBUG") != "" {
fmt.Fprintf(ErrWriter, "CLI TEMPLATE ERROR: %#v\n", err)
}
return
}
w.Flush()
}
func printHelp(out io.Writer, templ string, data interface{}) {
printHelpCustom(out, templ, data, nil)
}
func checkVersion(c *Context) bool {
found := false
if VersionFlag.GetName() != "" {
eachName(VersionFlag.GetName(), func(name string) {
if c.GlobalBool(name) || c.Bool(name) {
found = true
}
})
}
return found
}
func checkHelp(c *Context) bool {
found := false
if HelpFlag.GetName() != "" {
eachName(HelpFlag.GetName(), func(name string) {
if c.GlobalBool(name) || c.Bool(name) {
found = true
}
})
}
return found
}
func checkCommandHelp(c *Context, name string) bool {
if c.Bool("h") || c.Bool("help") {
ShowCommandHelp(c, name)
return true
}
return false
}
func checkSubcommandHelp(c *Context) bool {
if c.Bool("h") || c.Bool("help") {
ShowSubcommandHelp(c)
return true
}
return false
}
func checkShellCompleteFlag(a *App, arguments []string) (bool, []string) {
if !a.EnableBashCompletion {
return false, arguments
}
pos := len(arguments) - 1
lastArg := arguments[pos]
if lastArg != "--"+BashCompletionFlag.GetName() {
return false, arguments
}
return true, arguments[:pos]
}
func checkCompletions(c *Context) bool {
if !c.shellComplete {
return false
}
if args := c.Args(); args.Present() {
name := args.First()
if cmd := c.App.Command(name); cmd != nil {
// let the command handle the completion
return false
}
}
ShowCompletions(c)
return true
}
func checkCommandCompletions(c *Context, name string) bool {
if !c.shellComplete {
return false
}
ShowCommandCompletions(c, name)
return true
}

122
vendor/github.com/urfave/cli/runtests generated vendored Executable file
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@ -0,0 +1,122 @@
#!/usr/bin/env python
from __future__ import print_function
import argparse
import os
import sys
import tempfile
from subprocess import check_call, check_output
PACKAGE_NAME = os.environ.get(
'CLI_PACKAGE_NAME', 'github.com/urfave/cli'
)
def main(sysargs=sys.argv[:]):
targets = {
'vet': _vet,
'test': _test,
'gfmrun': _gfmrun,
'toc': _toc,
'gen': _gen,
}
parser = argparse.ArgumentParser()
parser.add_argument(
'target', nargs='?', choices=tuple(targets.keys()), default='test'
)
args = parser.parse_args(sysargs[1:])
targets[args.target]()
return 0
def _test():
if check_output('go version'.split()).split()[2] < 'go1.2':
_run('go test -v .')
return
coverprofiles = []
for subpackage in ['', 'altsrc']:
coverprofile = 'cli.coverprofile'
if subpackage != '':
coverprofile = '{}.coverprofile'.format(subpackage)
coverprofiles.append(coverprofile)
_run('go test -v'.split() + [
'-coverprofile={}'.format(coverprofile),
('{}/{}'.format(PACKAGE_NAME, subpackage)).rstrip('/')
])
combined_name = _combine_coverprofiles(coverprofiles)
_run('go tool cover -func={}'.format(combined_name))
os.remove(combined_name)
def _gfmrun():
go_version = check_output('go version'.split()).split()[2]
if go_version < 'go1.3':
print('runtests: skip on {}'.format(go_version), file=sys.stderr)
return
_run(['gfmrun', '-c', str(_gfmrun_count()), '-s', 'README.md'])
def _vet():
_run('go vet ./...')
def _toc():
_run('node_modules/.bin/markdown-toc -i README.md')
_run('git diff --exit-code')
def _gen():
go_version = check_output('go version'.split()).split()[2]
if go_version < 'go1.5':
print('runtests: skip on {}'.format(go_version), file=sys.stderr)
return
_run('go generate ./...')
_run('git diff --exit-code')
def _run(command):
if hasattr(command, 'split'):
command = command.split()
print('runtests: {}'.format(' '.join(command)), file=sys.stderr)
check_call(command)
def _gfmrun_count():
with open('README.md') as infile:
lines = infile.read().splitlines()
return len(filter(_is_go_runnable, lines))
def _is_go_runnable(line):
return line.startswith('package main')
def _combine_coverprofiles(coverprofiles):
combined = tempfile.NamedTemporaryFile(
suffix='.coverprofile', delete=False
)
combined.write('mode: set\n')
for coverprofile in coverprofiles:
with open(coverprofile, 'r') as infile:
for line in infile.readlines():
if not line.startswith('mode: '):
combined.write(line)
combined.flush()
name = combined.name
combined.close()
return name
if __name__ == '__main__':
sys.exit(main())

3
vendor/golang.org/x/net/AUTHORS generated vendored
View File

@ -1,3 +0,0 @@
# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

31
vendor/golang.org/x/net/CONTRIBUTING.md generated vendored
View File

@ -1,31 +0,0 @@
# Contributing to Go
Go is an open source project.
It is the work of hundreds of contributors. We appreciate your help!
## Filing issues
When [filing an issue](https://golang.org/issue/new), make sure to answer these five questions:
1. What version of Go are you using (`go version`)?
2. What operating system and processor architecture are you using?
3. What did you do?
4. What did you expect to see?
5. What did you see instead?
General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
The gophers there will answer or ask you to file an issue if you've tripped over a bug.
## Contributing code
Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
before sending patches.
**We do not accept GitHub pull requests**
(we use [Gerrit](https://code.google.com/p/gerrit/) instead for code review).
Unless otherwise noted, the Go source files are distributed under
the BSD-style license found in the LICENSE file.

3
vendor/golang.org/x/net/CONTRIBUTORS generated vendored
View File

@ -1,3 +0,0 @@
# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

27
vendor/golang.org/x/net/LICENSE generated vendored
View File

@ -1,27 +0,0 @@
Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

22
vendor/golang.org/x/net/PATENTS generated vendored
View File

@ -1,22 +0,0 @@
Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

3
vendor/golang.org/x/net/README generated vendored
View File

@ -1,3 +0,0 @@
This repository holds supplementary Go networking libraries.
To submit changes to this repository, see http://golang.org/doc/contribute.html.

1
vendor/golang.org/x/net/codereview.cfg generated vendored
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@ -1 +0,0 @@
issuerepo: golang/go

156
vendor/golang.org/x/net/context/context.go generated vendored
View File

@ -1,156 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package context defines the Context type, which carries deadlines,
// cancelation signals, and other request-scoped values across API boundaries
// and between processes.
//
// Incoming requests to a server should create a Context, and outgoing calls to
// servers should accept a Context. The chain of function calls between must
// propagate the Context, optionally replacing it with a modified copy created
// using WithDeadline, WithTimeout, WithCancel, or WithValue.
//
// Programs that use Contexts should follow these rules to keep interfaces
// consistent across packages and enable static analysis tools to check context
// propagation:
//
// Do not store Contexts inside a struct type; instead, pass a Context
// explicitly to each function that needs it. The Context should be the first
// parameter, typically named ctx:
//
// func DoSomething(ctx context.Context, arg Arg) error {
// // ... use ctx ...
// }
//
// Do not pass a nil Context, even if a function permits it. Pass context.TODO
// if you are unsure about which Context to use.
//
// Use context Values only for request-scoped data that transits processes and
// APIs, not for passing optional parameters to functions.
//
// The same Context may be passed to functions running in different goroutines;
// Contexts are safe for simultaneous use by multiple goroutines.
//
// See http://blog.golang.org/context for example code for a server that uses
// Contexts.
package context // import "golang.org/x/net/context"
import "time"
// A Context carries a deadline, a cancelation signal, and other values across
// API boundaries.
//
// Context's methods may be called by multiple goroutines simultaneously.
type Context interface {
// Deadline returns the time when work done on behalf of this context
// should be canceled. Deadline returns ok==false when no deadline is
// set. Successive calls to Deadline return the same results.
Deadline() (deadline time.Time, ok bool)
// Done returns a channel that's closed when work done on behalf of this
// context should be canceled. Done may return nil if this context can
// never be canceled. Successive calls to Done return the same value.
//
// WithCancel arranges for Done to be closed when cancel is called;
// WithDeadline arranges for Done to be closed when the deadline
// expires; WithTimeout arranges for Done to be closed when the timeout
// elapses.
//
// Done is provided for use in select statements:
//
// // Stream generates values with DoSomething and sends them to out
// // until DoSomething returns an error or ctx.Done is closed.
// func Stream(ctx context.Context, out chan<- Value) error {
// for {
// v, err := DoSomething(ctx)
// if err != nil {
// return err
// }
// select {
// case <-ctx.Done():
// return ctx.Err()
// case out <- v:
// }
// }
// }
//
// See http://blog.golang.org/pipelines for more examples of how to use
// a Done channel for cancelation.
Done() <-chan struct{}
// Err returns a non-nil error value after Done is closed. Err returns
// Canceled if the context was canceled or DeadlineExceeded if the
// context's deadline passed. No other values for Err are defined.
// After Done is closed, successive calls to Err return the same value.
Err() error
// Value returns the value associated with this context for key, or nil
// if no value is associated with key. Successive calls to Value with
// the same key returns the same result.
//
// Use context values only for request-scoped data that transits
// processes and API boundaries, not for passing optional parameters to
// functions.
//
// A key identifies a specific value in a Context. Functions that wish
// to store values in Context typically allocate a key in a global
// variable then use that key as the argument to context.WithValue and
// Context.Value. A key can be any type that supports equality;
// packages should define keys as an unexported type to avoid
// collisions.
//
// Packages that define a Context key should provide type-safe accessors
// for the values stores using that key:
//
// // Package user defines a User type that's stored in Contexts.
// package user
//
// import "golang.org/x/net/context"
//
// // User is the type of value stored in the Contexts.
// type User struct {...}
//
// // key is an unexported type for keys defined in this package.
// // This prevents collisions with keys defined in other packages.
// type key int
//
// // userKey is the key for user.User values in Contexts. It is
// // unexported; clients use user.NewContext and user.FromContext
// // instead of using this key directly.
// var userKey key = 0
//
// // NewContext returns a new Context that carries value u.
// func NewContext(ctx context.Context, u *User) context.Context {
// return context.WithValue(ctx, userKey, u)
// }
//
// // FromContext returns the User value stored in ctx, if any.
// func FromContext(ctx context.Context) (*User, bool) {
// u, ok := ctx.Value(userKey).(*User)
// return u, ok
// }
Value(key interface{}) interface{}
}
// Background returns a non-nil, empty Context. It is never canceled, has no
// values, and has no deadline. It is typically used by the main function,
// initialization, and tests, and as the top-level Context for incoming
// requests.
func Background() Context {
return background
}
// TODO returns a non-nil, empty Context. Code should use context.TODO when
// it's unclear which Context to use or it is not yet available (because the
// surrounding function has not yet been extended to accept a Context
// parameter). TODO is recognized by static analysis tools that determine
// whether Contexts are propagated correctly in a program.
func TODO() Context {
return todo
}
// A CancelFunc tells an operation to abandon its work.
// A CancelFunc does not wait for the work to stop.
// After the first call, subsequent calls to a CancelFunc do nothing.
type CancelFunc func()

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@ -1,72 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.7
package context
import (
"context" // standard library's context, as of Go 1.7
"time"
)
var (
todo = context.TODO()
background = context.Background()
)
// Canceled is the error returned by Context.Err when the context is canceled.
var Canceled = context.Canceled
// DeadlineExceeded is the error returned by Context.Err when the context's
// deadline passes.
var DeadlineExceeded = context.DeadlineExceeded
// WithCancel returns a copy of parent with a new Done channel. The returned
// context's Done channel is closed when the returned cancel function is called
// or when the parent context's Done channel is closed, whichever happens first.
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete.
func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
ctx, f := context.WithCancel(parent)
return ctx, CancelFunc(f)
}
// WithDeadline returns a copy of the parent context with the deadline adjusted
// to be no later than d. If the parent's deadline is already earlier than d,
// WithDeadline(parent, d) is semantically equivalent to parent. The returned
// context's Done channel is closed when the deadline expires, when the returned
// cancel function is called, or when the parent context's Done channel is
// closed, whichever happens first.
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete.
func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) {
ctx, f := context.WithDeadline(parent, deadline)
return ctx, CancelFunc(f)
}
// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)).
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete:
//
// func slowOperationWithTimeout(ctx context.Context) (Result, error) {
// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond)
// defer cancel() // releases resources if slowOperation completes before timeout elapses
// return slowOperation(ctx)
// }
func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) {
return WithDeadline(parent, time.Now().Add(timeout))
}
// WithValue returns a copy of parent in which the value associated with key is
// val.
//
// Use context Values only for request-scoped data that transits processes and
// APIs, not for passing optional parameters to functions.
func WithValue(parent Context, key interface{}, val interface{}) Context {
return context.WithValue(parent, key, val)
}

300
vendor/golang.org/x/net/context/pre_go17.go generated vendored
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@ -1,300 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.7
package context
import (
"errors"
"fmt"
"sync"
"time"
)
// An emptyCtx is never canceled, has no values, and has no deadline. It is not
// struct{}, since vars of this type must have distinct addresses.
type emptyCtx int
func (*emptyCtx) Deadline() (deadline time.Time, ok bool) {
return
}
func (*emptyCtx) Done() <-chan struct{} {
return nil
}
func (*emptyCtx) Err() error {
return nil
}
func (*emptyCtx) Value(key interface{}) interface{} {
return nil
}
func (e *emptyCtx) String() string {
switch e {
case background:
return "context.Background"
case todo:
return "context.TODO"
}
return "unknown empty Context"
}
var (
background = new(emptyCtx)
todo = new(emptyCtx)
)
// Canceled is the error returned by Context.Err when the context is canceled.
var Canceled = errors.New("context canceled")
// DeadlineExceeded is the error returned by Context.Err when the context's
// deadline passes.
var DeadlineExceeded = errors.New("context deadline exceeded")
// WithCancel returns a copy of parent with a new Done channel. The returned
// context's Done channel is closed when the returned cancel function is called
// or when the parent context's Done channel is closed, whichever happens first.
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete.
func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
c := newCancelCtx(parent)
propagateCancel(parent, c)
return c, func() { c.cancel(true, Canceled) }
}
// newCancelCtx returns an initialized cancelCtx.
func newCancelCtx(parent Context) *cancelCtx {
return &cancelCtx{
Context: parent,
done: make(chan struct{}),
}
}
// propagateCancel arranges for child to be canceled when parent is.
func propagateCancel(parent Context, child canceler) {
if parent.Done() == nil {
return // parent is never canceled
}
if p, ok := parentCancelCtx(parent); ok {
p.mu.Lock()
if p.err != nil {
// parent has already been canceled
child.cancel(false, p.err)
} else {
if p.children == nil {
p.children = make(map[canceler]bool)
}
p.children[child] = true
}
p.mu.Unlock()
} else {
go func() {
select {
case <-parent.Done():
child.cancel(false, parent.Err())
case <-child.Done():
}
}()
}
}
// parentCancelCtx follows a chain of parent references until it finds a
// *cancelCtx. This function understands how each of the concrete types in this
// package represents its parent.
func parentCancelCtx(parent Context) (*cancelCtx, bool) {
for {
switch c := parent.(type) {
case *cancelCtx:
return c, true
case *timerCtx:
return c.cancelCtx, true
case *valueCtx:
parent = c.Context
default:
return nil, false
}
}
}
// removeChild removes a context from its parent.
func removeChild(parent Context, child canceler) {
p, ok := parentCancelCtx(parent)
if !ok {
return
}
p.mu.Lock()
if p.children != nil {
delete(p.children, child)
}
p.mu.Unlock()
}
// A canceler is a context type that can be canceled directly. The
// implementations are *cancelCtx and *timerCtx.
type canceler interface {
cancel(removeFromParent bool, err error)
Done() <-chan struct{}
}
// A cancelCtx can be canceled. When canceled, it also cancels any children
// that implement canceler.
type cancelCtx struct {
Context
done chan struct{} // closed by the first cancel call.
mu sync.Mutex
children map[canceler]bool // set to nil by the first cancel call
err error // set to non-nil by the first cancel call
}
func (c *cancelCtx) Done() <-chan struct{} {
return c.done
}
func (c *cancelCtx) Err() error {
c.mu.Lock()
defer c.mu.Unlock()
return c.err
}
func (c *cancelCtx) String() string {
return fmt.Sprintf("%v.WithCancel", c.Context)
}
// cancel closes c.done, cancels each of c's children, and, if
// removeFromParent is true, removes c from its parent's children.
func (c *cancelCtx) cancel(removeFromParent bool, err error) {
if err == nil {
panic("context: internal error: missing cancel error")
}
c.mu.Lock()
if c.err != nil {
c.mu.Unlock()
return // already canceled
}
c.err = err
close(c.done)
for child := range c.children {
// NOTE: acquiring the child's lock while holding parent's lock.
child.cancel(false, err)
}
c.children = nil
c.mu.Unlock()
if removeFromParent {
removeChild(c.Context, c)
}
}
// WithDeadline returns a copy of the parent context with the deadline adjusted
// to be no later than d. If the parent's deadline is already earlier than d,
// WithDeadline(parent, d) is semantically equivalent to parent. The returned
// context's Done channel is closed when the deadline expires, when the returned
// cancel function is called, or when the parent context's Done channel is
// closed, whichever happens first.
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete.
func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) {
if cur, ok := parent.Deadline(); ok && cur.Before(deadline) {
// The current deadline is already sooner than the new one.
return WithCancel(parent)
}
c := &timerCtx{
cancelCtx: newCancelCtx(parent),
deadline: deadline,
}
propagateCancel(parent, c)
d := deadline.Sub(time.Now())
if d <= 0 {
c.cancel(true, DeadlineExceeded) // deadline has already passed
return c, func() { c.cancel(true, Canceled) }
}
c.mu.Lock()
defer c.mu.Unlock()
if c.err == nil {
c.timer = time.AfterFunc(d, func() {
c.cancel(true, DeadlineExceeded)
})
}
return c, func() { c.cancel(true, Canceled) }
}
// A timerCtx carries a timer and a deadline. It embeds a cancelCtx to
// implement Done and Err. It implements cancel by stopping its timer then
// delegating to cancelCtx.cancel.
type timerCtx struct {
*cancelCtx
timer *time.Timer // Under cancelCtx.mu.
deadline time.Time
}
func (c *timerCtx) Deadline() (deadline time.Time, ok bool) {
return c.deadline, true
}
func (c *timerCtx) String() string {
return fmt.Sprintf("%v.WithDeadline(%s [%s])", c.cancelCtx.Context, c.deadline, c.deadline.Sub(time.Now()))
}
func (c *timerCtx) cancel(removeFromParent bool, err error) {
c.cancelCtx.cancel(false, err)
if removeFromParent {
// Remove this timerCtx from its parent cancelCtx's children.
removeChild(c.cancelCtx.Context, c)
}
c.mu.Lock()
if c.timer != nil {
c.timer.Stop()
c.timer = nil
}
c.mu.Unlock()
}
// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)).
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete:
//
// func slowOperationWithTimeout(ctx context.Context) (Result, error) {
// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond)
// defer cancel() // releases resources if slowOperation completes before timeout elapses
// return slowOperation(ctx)
// }
func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) {
return WithDeadline(parent, time.Now().Add(timeout))
}
// WithValue returns a copy of parent in which the value associated with key is
// val.
//
// Use context Values only for request-scoped data that transits processes and
// APIs, not for passing optional parameters to functions.
func WithValue(parent Context, key interface{}, val interface{}) Context {
return &valueCtx{parent, key, val}
}
// A valueCtx carries a key-value pair. It implements Value for that key and
// delegates all other calls to the embedded Context.
type valueCtx struct {
Context
key, val interface{}
}
func (c *valueCtx) String() string {
return fmt.Sprintf("%v.WithValue(%#v, %#v)", c.Context, c.key, c.val)
}
func (c *valueCtx) Value(key interface{}) interface{} {
if c.key == key {
return c.val
}
return c.Context.Value(key)
}

3
vendor/golang.org/x/oauth2/AUTHORS generated vendored
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# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

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# Contributing to Go
Go is an open source project.
It is the work of hundreds of contributors. We appreciate your help!
## Filing issues
When [filing an issue](https://github.com/golang/oauth2/issues), make sure to answer these five questions:
1. What version of Go are you using (`go version`)?
2. What operating system and processor architecture are you using?
3. What did you do?
4. What did you expect to see?
5. What did you see instead?
General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
The gophers there will answer or ask you to file an issue if you've tripped over a bug.
## Contributing code
Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
before sending patches.
**We do not accept GitHub pull requests**
(we use [Gerrit](https://code.google.com/p/gerrit/) instead for code review).
Unless otherwise noted, the Go source files are distributed under
the BSD-style license found in the LICENSE file.

3
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# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

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Copyright (c) 2009 The oauth2 Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# OAuth2 for Go
[![Build Status](https://travis-ci.org/golang/oauth2.svg?branch=master)](https://travis-ci.org/golang/oauth2)
oauth2 package contains a client implementation for OAuth 2.0 spec.
## Installation
~~~~
go get golang.org/x/oauth2
~~~~
See godoc for further documentation and examples.
* [godoc.org/golang.org/x/oauth2](http://godoc.org/golang.org/x/oauth2)
* [godoc.org/golang.org/x/oauth2/google](http://godoc.org/golang.org/x/oauth2/google)
## App Engine
In change 96e89be (March 2015) we removed the `oauth2.Context2` type in favor
of the [`context.Context`](https://golang.org/x/net/context#Context) type from
the `golang.org/x/net/context` package
This means its no longer possible to use the "Classic App Engine"
`appengine.Context` type with the `oauth2` package. (You're using
Classic App Engine if you import the package `"appengine"`.)
To work around this, you may use the new `"google.golang.org/appengine"`
package. This package has almost the same API as the `"appengine"` package,
but it can be fetched with `go get` and used on "Managed VMs" and well as
Classic App Engine.
See the [new `appengine` package's readme](https://github.com/golang/appengine#updating-a-go-app-engine-app)
for information on updating your app.
If you don't want to update your entire app to use the new App Engine packages,
you may use both sets of packages in parallel, using only the new packages
with the `oauth2` package.
import (
"golang.org/x/net/context"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
newappengine "google.golang.org/appengine"
newurlfetch "google.golang.org/appengine/urlfetch"
"appengine"
)
func handler(w http.ResponseWriter, r *http.Request) {
var c appengine.Context = appengine.NewContext(r)
c.Infof("Logging a message with the old package")
var ctx context.Context = newappengine.NewContext(r)
client := &http.Client{
Transport: &oauth2.Transport{
Source: google.AppEngineTokenSource(ctx, "scope"),
Base: &newurlfetch.Transport{Context: ctx},
},
}
client.Get("...")
}

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vendor/golang.org/x/oauth2/client_appengine.go generated vendored
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build appengine
// App Engine hooks.
package oauth2
import (
"net/http"
"golang.org/x/net/context"
"golang.org/x/oauth2/internal"
"google.golang.org/appengine/urlfetch"
)
func init() {
internal.RegisterContextClientFunc(contextClientAppEngine)
}
func contextClientAppEngine(ctx context.Context) (*http.Client, error) {
return urlfetch.Client(ctx), nil
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package internal contains support packages for oauth2 package.
package internal
import (
"bufio"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"errors"
"fmt"
"io"
"strings"
)
// ParseKey converts the binary contents of a private key file
// to an *rsa.PrivateKey. It detects whether the private key is in a
// PEM container or not. If so, it extracts the the private key
// from PEM container before conversion. It only supports PEM
// containers with no passphrase.
func ParseKey(key []byte) (*rsa.PrivateKey, error) {
block, _ := pem.Decode(key)
if block != nil {
key = block.Bytes
}
parsedKey, err := x509.ParsePKCS8PrivateKey(key)
if err != nil {
parsedKey, err = x509.ParsePKCS1PrivateKey(key)
if err != nil {
return nil, fmt.Errorf("private key should be a PEM or plain PKSC1 or PKCS8; parse error: %v", err)
}
}
parsed, ok := parsedKey.(*rsa.PrivateKey)
if !ok {
return nil, errors.New("private key is invalid")
}
return parsed, nil
}
func ParseINI(ini io.Reader) (map[string]map[string]string, error) {
result := map[string]map[string]string{
"": map[string]string{}, // root section
}
scanner := bufio.NewScanner(ini)
currentSection := ""
for scanner.Scan() {
line := strings.TrimSpace(scanner.Text())
if strings.HasPrefix(line, ";") {
// comment.
continue
}
if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
currentSection = strings.TrimSpace(line[1 : len(line)-1])
result[currentSection] = map[string]string{}
continue
}
parts := strings.SplitN(line, "=", 2)
if len(parts) == 2 && parts[0] != "" {
result[currentSection][strings.TrimSpace(parts[0])] = strings.TrimSpace(parts[1])
}
}
if err := scanner.Err(); err != nil {
return nil, fmt.Errorf("error scanning ini: %v", err)
}
return result, nil
}
func CondVal(v string) []string {
if v == "" {
return nil
}
return []string{v}
}

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vendor/golang.org/x/oauth2/internal/token.go generated vendored
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package internal contains support packages for oauth2 package.
package internal
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
"mime"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"golang.org/x/net/context"
)
// Token represents the crendentials used to authorize
// the requests to access protected resources on the OAuth 2.0
// provider's backend.
//
// This type is a mirror of oauth2.Token and exists to break
// an otherwise-circular dependency. Other internal packages
// should convert this Token into an oauth2.Token before use.
type Token struct {
// AccessToken is the token that authorizes and authenticates
// the requests.
AccessToken string
// TokenType is the type of token.
// The Type method returns either this or "Bearer", the default.
TokenType string
// RefreshToken is a token that's used by the application
// (as opposed to the user) to refresh the access token
// if it expires.
RefreshToken string
// Expiry is the optional expiration time of the access token.
//
// If zero, TokenSource implementations will reuse the same
// token forever and RefreshToken or equivalent
// mechanisms for that TokenSource will not be used.
Expiry time.Time
// Raw optionally contains extra metadata from the server
// when updating a token.
Raw interface{}
}
// tokenJSON is the struct representing the HTTP response from OAuth2
// providers returning a token in JSON form.
type tokenJSON struct {
AccessToken string `json:"access_token"`
TokenType string `json:"token_type"`
RefreshToken string `json:"refresh_token"`
ExpiresIn expirationTime `json:"expires_in"` // at least PayPal returns string, while most return number
Expires expirationTime `json:"expires"` // broken Facebook spelling of expires_in
}
func (e *tokenJSON) expiry() (t time.Time) {
if v := e.ExpiresIn; v != 0 {
return time.Now().Add(time.Duration(v) * time.Second)
}
if v := e.Expires; v != 0 {
return time.Now().Add(time.Duration(v) * time.Second)
}
return
}
type expirationTime int32
func (e *expirationTime) UnmarshalJSON(b []byte) error {
var n json.Number
err := json.Unmarshal(b, &n)
if err != nil {
return err
}
i, err := n.Int64()
if err != nil {
return err
}
*e = expirationTime(i)
return nil
}
var brokenAuthHeaderProviders = []string{
"https://accounts.google.com/",
"https://api.dropbox.com/",
"https://api.dropboxapi.com/",
"https://api.instagram.com/",
"https://api.netatmo.net/",
"https://api.odnoklassniki.ru/",
"https://api.pushbullet.com/",
"https://api.soundcloud.com/",
"https://api.twitch.tv/",
"https://app.box.com/",
"https://connect.stripe.com/",
"https://login.microsoftonline.com/",
"https://login.salesforce.com/",
"https://oauth.sandbox.trainingpeaks.com/",
"https://oauth.trainingpeaks.com/",
"https://oauth.vk.com/",
"https://openapi.baidu.com/",
"https://slack.com/",
"https://test-sandbox.auth.corp.google.com",
"https://test.salesforce.com/",
"https://user.gini.net/",
"https://www.douban.com/",
"https://www.googleapis.com/",
"https://www.linkedin.com/",
"https://www.strava.com/oauth/",
"https://www.wunderlist.com/oauth/",
"https://api.patreon.com/",
}
func RegisterBrokenAuthHeaderProvider(tokenURL string) {
brokenAuthHeaderProviders = append(brokenAuthHeaderProviders, tokenURL)
}
// providerAuthHeaderWorks reports whether the OAuth2 server identified by the tokenURL
// implements the OAuth2 spec correctly
// See https://code.google.com/p/goauth2/issues/detail?id=31 for background.
// In summary:
// - Reddit only accepts client secret in the Authorization header
// - Dropbox accepts either it in URL param or Auth header, but not both.
// - Google only accepts URL param (not spec compliant?), not Auth header
// - Stripe only accepts client secret in Auth header with Bearer method, not Basic
func providerAuthHeaderWorks(tokenURL string) bool {
for _, s := range brokenAuthHeaderProviders {
if strings.HasPrefix(tokenURL, s) {
// Some sites fail to implement the OAuth2 spec fully.
return false
}
}
// Assume the provider implements the spec properly
// otherwise. We can add more exceptions as they're
// discovered. We will _not_ be adding configurable hooks
// to this package to let users select server bugs.
return true
}
func RetrieveToken(ctx context.Context, ClientID, ClientSecret, TokenURL string, v url.Values) (*Token, error) {
hc, err := ContextClient(ctx)
if err != nil {
return nil, err
}
v.Set("client_id", ClientID)
bustedAuth := !providerAuthHeaderWorks(TokenURL)
if bustedAuth && ClientSecret != "" {
v.Set("client_secret", ClientSecret)
}
req, err := http.NewRequest("POST", TokenURL, strings.NewReader(v.Encode()))
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
if !bustedAuth {
req.SetBasicAuth(ClientID, ClientSecret)
}
r, err := hc.Do(req)
if err != nil {
return nil, err
}
defer r.Body.Close()
body, err := ioutil.ReadAll(io.LimitReader(r.Body, 1<<20))
if err != nil {
return nil, fmt.Errorf("oauth2: cannot fetch token: %v", err)
}
if code := r.StatusCode; code < 200 || code > 299 {
return nil, fmt.Errorf("oauth2: cannot fetch token: %v\nResponse: %s", r.Status, body)
}
var token *Token
content, _, _ := mime.ParseMediaType(r.Header.Get("Content-Type"))
switch content {
case "application/x-www-form-urlencoded", "text/plain":
vals, err := url.ParseQuery(string(body))
if err != nil {
return nil, err
}
token = &Token{
AccessToken: vals.Get("access_token"),
TokenType: vals.Get("token_type"),
RefreshToken: vals.Get("refresh_token"),
Raw: vals,
}
e := vals.Get("expires_in")
if e == "" {
// TODO(jbd): Facebook's OAuth2 implementation is broken and
// returns expires_in field in expires. Remove the fallback to expires,
// when Facebook fixes their implementation.
e = vals.Get("expires")
}
expires, _ := strconv.Atoi(e)
if expires != 0 {
token.Expiry = time.Now().Add(time.Duration(expires) * time.Second)
}
default:
var tj tokenJSON
if err = json.Unmarshal(body, &tj); err != nil {
return nil, err
}
token = &Token{
AccessToken: tj.AccessToken,
TokenType: tj.TokenType,
RefreshToken: tj.RefreshToken,
Expiry: tj.expiry(),
Raw: make(map[string]interface{}),
}
json.Unmarshal(body, &token.Raw) // no error checks for optional fields
}
// Don't overwrite `RefreshToken` with an empty value
// if this was a token refreshing request.
if token.RefreshToken == "" {
token.RefreshToken = v.Get("refresh_token")
}
return token, nil
}

69
vendor/golang.org/x/oauth2/internal/transport.go generated vendored
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package internal contains support packages for oauth2 package.
package internal
import (
"net/http"
"golang.org/x/net/context"
)
// HTTPClient is the context key to use with golang.org/x/net/context's
// WithValue function to associate an *http.Client value with a context.
var HTTPClient ContextKey
// ContextKey is just an empty struct. It exists so HTTPClient can be
// an immutable public variable with a unique type. It's immutable
// because nobody else can create a ContextKey, being unexported.
type ContextKey struct{}
// ContextClientFunc is a func which tries to return an *http.Client
// given a Context value. If it returns an error, the search stops
// with that error. If it returns (nil, nil), the search continues
// down the list of registered funcs.
type ContextClientFunc func(context.Context) (*http.Client, error)
var contextClientFuncs []ContextClientFunc
func RegisterContextClientFunc(fn ContextClientFunc) {
contextClientFuncs = append(contextClientFuncs, fn)
}
func ContextClient(ctx context.Context) (*http.Client, error) {
if ctx != nil {
if hc, ok := ctx.Value(HTTPClient).(*http.Client); ok {
return hc, nil
}
}
for _, fn := range contextClientFuncs {
c, err := fn(ctx)
if err != nil {
return nil, err
}
if c != nil {
return c, nil
}
}
return http.DefaultClient, nil
}
func ContextTransport(ctx context.Context) http.RoundTripper {
hc, err := ContextClient(ctx)
// This is a rare error case (somebody using nil on App Engine).
if err != nil {
return ErrorTransport{err}
}
return hc.Transport
}
// ErrorTransport returns the specified error on RoundTrip.
// This RoundTripper should be used in rare error cases where
// error handling can be postponed to response handling time.
type ErrorTransport struct{ Err error }
func (t ErrorTransport) RoundTrip(*http.Request) (*http.Response, error) {
return nil, t.Err
}

337
vendor/golang.org/x/oauth2/oauth2.go generated vendored
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@ -1,337 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package oauth2 provides support for making
// OAuth2 authorized and authenticated HTTP requests.
// It can additionally grant authorization with Bearer JWT.
package oauth2 // import "golang.org/x/oauth2"
import (
"bytes"
"errors"
"net/http"
"net/url"
"strings"
"sync"
"golang.org/x/net/context"
"golang.org/x/oauth2/internal"
)
// NoContext is the default context you should supply if not using
// your own context.Context (see https://golang.org/x/net/context).
var NoContext = context.TODO()
// RegisterBrokenAuthHeaderProvider registers an OAuth2 server
// identified by the tokenURL prefix as an OAuth2 implementation
// which doesn't support the HTTP Basic authentication
// scheme to authenticate with the authorization server.
// Once a server is registered, credentials (client_id and client_secret)
// will be passed as query parameters rather than being present
// in the Authorization header.
// See https://code.google.com/p/goauth2/issues/detail?id=31 for background.
func RegisterBrokenAuthHeaderProvider(tokenURL string) {
internal.RegisterBrokenAuthHeaderProvider(tokenURL)
}
// Config describes a typical 3-legged OAuth2 flow, with both the
// client application information and the server's endpoint URLs.
type Config struct {
// ClientID is the application's ID.
ClientID string
// ClientSecret is the application's secret.
ClientSecret string
// Endpoint contains the resource server's token endpoint
// URLs. These are constants specific to each server and are
// often available via site-specific packages, such as
// google.Endpoint or github.Endpoint.
Endpoint Endpoint
// RedirectURL is the URL to redirect users going through
// the OAuth flow, after the resource owner's URLs.
RedirectURL string
// Scope specifies optional requested permissions.
Scopes []string
}
// A TokenSource is anything that can return a token.
type TokenSource interface {
// Token returns a token or an error.
// Token must be safe for concurrent use by multiple goroutines.
// The returned Token must not be modified.
Token() (*Token, error)
}
// Endpoint contains the OAuth 2.0 provider's authorization and token
// endpoint URLs.
type Endpoint struct {
AuthURL string
TokenURL string
}
var (
// AccessTypeOnline and AccessTypeOffline are options passed
// to the Options.AuthCodeURL method. They modify the
// "access_type" field that gets sent in the URL returned by
// AuthCodeURL.
//
// Online is the default if neither is specified. If your
// application needs to refresh access tokens when the user
// is not present at the browser, then use offline. This will
// result in your application obtaining a refresh token the
// first time your application exchanges an authorization
// code for a user.
AccessTypeOnline AuthCodeOption = SetAuthURLParam("access_type", "online")
AccessTypeOffline AuthCodeOption = SetAuthURLParam("access_type", "offline")
// ApprovalForce forces the users to view the consent dialog
// and confirm the permissions request at the URL returned
// from AuthCodeURL, even if they've already done so.
ApprovalForce AuthCodeOption = SetAuthURLParam("approval_prompt", "force")
)
// An AuthCodeOption is passed to Config.AuthCodeURL.
type AuthCodeOption interface {
setValue(url.Values)
}
type setParam struct{ k, v string }
func (p setParam) setValue(m url.Values) { m.Set(p.k, p.v) }
// SetAuthURLParam builds an AuthCodeOption which passes key/value parameters
// to a provider's authorization endpoint.
func SetAuthURLParam(key, value string) AuthCodeOption {
return setParam{key, value}
}
// AuthCodeURL returns a URL to OAuth 2.0 provider's consent page
// that asks for permissions for the required scopes explicitly.
//
// State is a token to protect the user from CSRF attacks. You must
// always provide a non-zero string and validate that it matches the
// the state query parameter on your redirect callback.
// See http://tools.ietf.org/html/rfc6749#section-10.12 for more info.
//
// Opts may include AccessTypeOnline or AccessTypeOffline, as well
// as ApprovalForce.
func (c *Config) AuthCodeURL(state string, opts ...AuthCodeOption) string {
var buf bytes.Buffer
buf.WriteString(c.Endpoint.AuthURL)
v := url.Values{
"response_type": {"code"},
"client_id": {c.ClientID},
"redirect_uri": internal.CondVal(c.RedirectURL),
"scope": internal.CondVal(strings.Join(c.Scopes, " ")),
"state": internal.CondVal(state),
}
for _, opt := range opts {
opt.setValue(v)
}
if strings.Contains(c.Endpoint.AuthURL, "?") {
buf.WriteByte('&')
} else {
buf.WriteByte('?')
}
buf.WriteString(v.Encode())
return buf.String()
}
// PasswordCredentialsToken converts a resource owner username and password
// pair into a token.
//
// Per the RFC, this grant type should only be used "when there is a high
// degree of trust between the resource owner and the client (e.g., the client
// is part of the device operating system or a highly privileged application),
// and when other authorization grant types are not available."
// See https://tools.ietf.org/html/rfc6749#section-4.3 for more info.
//
// The HTTP client to use is derived from the context.
// If nil, http.DefaultClient is used.
func (c *Config) PasswordCredentialsToken(ctx context.Context, username, password string) (*Token, error) {
return retrieveToken(ctx, c, url.Values{
"grant_type": {"password"},
"username": {username},
"password": {password},
"scope": internal.CondVal(strings.Join(c.Scopes, " ")),
})
}
// Exchange converts an authorization code into a token.
//
// It is used after a resource provider redirects the user back
// to the Redirect URI (the URL obtained from AuthCodeURL).
//
// The HTTP client to use is derived from the context.
// If a client is not provided via the context, http.DefaultClient is used.
//
// The code will be in the *http.Request.FormValue("code"). Before
// calling Exchange, be sure to validate FormValue("state").
func (c *Config) Exchange(ctx context.Context, code string) (*Token, error) {
return retrieveToken(ctx, c, url.Values{
"grant_type": {"authorization_code"},
"code": {code},
"redirect_uri": internal.CondVal(c.RedirectURL),
"scope": internal.CondVal(strings.Join(c.Scopes, " ")),
})
}
// Client returns an HTTP client using the provided token.
// The token will auto-refresh as necessary. The underlying
// HTTP transport will be obtained using the provided context.
// The returned client and its Transport should not be modified.
func (c *Config) Client(ctx context.Context, t *Token) *http.Client {
return NewClient(ctx, c.TokenSource(ctx, t))
}
// TokenSource returns a TokenSource that returns t until t expires,
// automatically refreshing it as necessary using the provided context.
//
// Most users will use Config.Client instead.
func (c *Config) TokenSource(ctx context.Context, t *Token) TokenSource {
tkr := &tokenRefresher{
ctx: ctx,
conf: c,
}
if t != nil {
tkr.refreshToken = t.RefreshToken
}
return &reuseTokenSource{
t: t,
new: tkr,
}
}
// tokenRefresher is a TokenSource that makes "grant_type"=="refresh_token"
// HTTP requests to renew a token using a RefreshToken.
type tokenRefresher struct {
ctx context.Context // used to get HTTP requests
conf *Config
refreshToken string
}
// WARNING: Token is not safe for concurrent access, as it
// updates the tokenRefresher's refreshToken field.
// Within this package, it is used by reuseTokenSource which
// synchronizes calls to this method with its own mutex.
func (tf *tokenRefresher) Token() (*Token, error) {
if tf.refreshToken == "" {
return nil, errors.New("oauth2: token expired and refresh token is not set")
}
tk, err := retrieveToken(tf.ctx, tf.conf, url.Values{
"grant_type": {"refresh_token"},
"refresh_token": {tf.refreshToken},
})
if err != nil {
return nil, err
}
if tf.refreshToken != tk.RefreshToken {
tf.refreshToken = tk.RefreshToken
}
return tk, err
}
// reuseTokenSource is a TokenSource that holds a single token in memory
// and validates its expiry before each call to retrieve it with
// Token. If it's expired, it will be auto-refreshed using the
// new TokenSource.
type reuseTokenSource struct {
new TokenSource // called when t is expired.
mu sync.Mutex // guards t
t *Token
}
// Token returns the current token if it's still valid, else will
// refresh the current token (using r.Context for HTTP client
// information) and return the new one.
func (s *reuseTokenSource) Token() (*Token, error) {
s.mu.Lock()
defer s.mu.Unlock()
if s.t.Valid() {
return s.t, nil
}
t, err := s.new.Token()
if err != nil {
return nil, err
}
s.t = t
return t, nil
}
// StaticTokenSource returns a TokenSource that always returns the same token.
// Because the provided token t is never refreshed, StaticTokenSource is only
// useful for tokens that never expire.
func StaticTokenSource(t *Token) TokenSource {
return staticTokenSource{t}
}
// staticTokenSource is a TokenSource that always returns the same Token.
type staticTokenSource struct {
t *Token
}
func (s staticTokenSource) Token() (*Token, error) {
return s.t, nil
}
// HTTPClient is the context key to use with golang.org/x/net/context's
// WithValue function to associate an *http.Client value with a context.
var HTTPClient internal.ContextKey
// NewClient creates an *http.Client from a Context and TokenSource.
// The returned client is not valid beyond the lifetime of the context.
//
// As a special case, if src is nil, a non-OAuth2 client is returned
// using the provided context. This exists to support related OAuth2
// packages.
func NewClient(ctx context.Context, src TokenSource) *http.Client {
if src == nil {
c, err := internal.ContextClient(ctx)
if err != nil {
return &http.Client{Transport: internal.ErrorTransport{err}}
}
return c
}
return &http.Client{
Transport: &Transport{
Base: internal.ContextTransport(ctx),
Source: ReuseTokenSource(nil, src),
},
}
}
// ReuseTokenSource returns a TokenSource which repeatedly returns the
// same token as long as it's valid, starting with t.
// When its cached token is invalid, a new token is obtained from src.
//
// ReuseTokenSource is typically used to reuse tokens from a cache
// (such as a file on disk) between runs of a program, rather than
// obtaining new tokens unnecessarily.
//
// The initial token t may be nil, in which case the TokenSource is
// wrapped in a caching version if it isn't one already. This also
// means it's always safe to wrap ReuseTokenSource around any other
// TokenSource without adverse effects.
func ReuseTokenSource(t *Token, src TokenSource) TokenSource {
// Don't wrap a reuseTokenSource in itself. That would work,
// but cause an unnecessary number of mutex operations.
// Just build the equivalent one.
if rt, ok := src.(*reuseTokenSource); ok {
if t == nil {
// Just use it directly.
return rt
}
src = rt.new
}
return &reuseTokenSource{
t: t,
new: src,
}
}

158
vendor/golang.org/x/oauth2/token.go generated vendored
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package oauth2
import (
"net/http"
"net/url"
"strconv"
"strings"
"time"
"golang.org/x/net/context"
"golang.org/x/oauth2/internal"
)
// expiryDelta determines how earlier a token should be considered
// expired than its actual expiration time. It is used to avoid late
// expirations due to client-server time mismatches.
const expiryDelta = 10 * time.Second
// Token represents the crendentials used to authorize
// the requests to access protected resources on the OAuth 2.0
// provider's backend.
//
// Most users of this package should not access fields of Token
// directly. They're exported mostly for use by related packages
// implementing derivative OAuth2 flows.
type Token struct {
// AccessToken is the token that authorizes and authenticates
// the requests.
AccessToken string `json:"access_token"`
// TokenType is the type of token.
// The Type method returns either this or "Bearer", the default.
TokenType string `json:"token_type,omitempty"`
// RefreshToken is a token that's used by the application
// (as opposed to the user) to refresh the access token
// if it expires.
RefreshToken string `json:"refresh_token,omitempty"`
// Expiry is the optional expiration time of the access token.
//
// If zero, TokenSource implementations will reuse the same
// token forever and RefreshToken or equivalent
// mechanisms for that TokenSource will not be used.
Expiry time.Time `json:"expiry,omitempty"`
// raw optionally contains extra metadata from the server
// when updating a token.
raw interface{}
}
// Type returns t.TokenType if non-empty, else "Bearer".
func (t *Token) Type() string {
if strings.EqualFold(t.TokenType, "bearer") {
return "Bearer"
}
if strings.EqualFold(t.TokenType, "mac") {
return "MAC"
}
if strings.EqualFold(t.TokenType, "basic") {
return "Basic"
}
if t.TokenType != "" {
return t.TokenType
}
return "Bearer"
}
// SetAuthHeader sets the Authorization header to r using the access
// token in t.
//
// This method is unnecessary when using Transport or an HTTP Client
// returned by this package.
func (t *Token) SetAuthHeader(r *http.Request) {
r.Header.Set("Authorization", t.Type()+" "+t.AccessToken)
}
// WithExtra returns a new Token that's a clone of t, but using the
// provided raw extra map. This is only intended for use by packages
// implementing derivative OAuth2 flows.
func (t *Token) WithExtra(extra interface{}) *Token {
t2 := new(Token)
*t2 = *t
t2.raw = extra
return t2
}
// Extra returns an extra field.
// Extra fields are key-value pairs returned by the server as a
// part of the token retrieval response.
func (t *Token) Extra(key string) interface{} {
if raw, ok := t.raw.(map[string]interface{}); ok {
return raw[key]
}
vals, ok := t.raw.(url.Values)
if !ok {
return nil
}
v := vals.Get(key)
switch s := strings.TrimSpace(v); strings.Count(s, ".") {
case 0: // Contains no "."; try to parse as int
if i, err := strconv.ParseInt(s, 10, 64); err == nil {
return i
}
case 1: // Contains a single "."; try to parse as float
if f, err := strconv.ParseFloat(s, 64); err == nil {
return f
}
}
return v
}
// expired reports whether the token is expired.
// t must be non-nil.
func (t *Token) expired() bool {
if t.Expiry.IsZero() {
return false
}
return t.Expiry.Add(-expiryDelta).Before(time.Now())
}
// Valid reports whether t is non-nil, has an AccessToken, and is not expired.
func (t *Token) Valid() bool {
return t != nil && t.AccessToken != "" && !t.expired()
}
// tokenFromInternal maps an *internal.Token struct into
// a *Token struct.
func tokenFromInternal(t *internal.Token) *Token {
if t == nil {
return nil
}
return &Token{
AccessToken: t.AccessToken,
TokenType: t.TokenType,
RefreshToken: t.RefreshToken,
Expiry: t.Expiry,
raw: t.Raw,
}
}
// retrieveToken takes a *Config and uses that to retrieve an *internal.Token.
// This token is then mapped from *internal.Token into an *oauth2.Token which is returned along
// with an error..
func retrieveToken(ctx context.Context, c *Config, v url.Values) (*Token, error) {
tk, err := internal.RetrieveToken(ctx, c.ClientID, c.ClientSecret, c.Endpoint.TokenURL, v)
if err != nil {
return nil, err
}
return tokenFromInternal(tk), nil
}

132
vendor/golang.org/x/oauth2/transport.go generated vendored
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package oauth2
import (
"errors"
"io"
"net/http"
"sync"
)
// Transport is an http.RoundTripper that makes OAuth 2.0 HTTP requests,
// wrapping a base RoundTripper and adding an Authorization header
// with a token from the supplied Sources.
//
// Transport is a low-level mechanism. Most code will use the
// higher-level Config.Client method instead.
type Transport struct {
// Source supplies the token to add to outgoing requests'
// Authorization headers.
Source TokenSource
// Base is the base RoundTripper used to make HTTP requests.
// If nil, http.DefaultTransport is used.
Base http.RoundTripper
mu sync.Mutex // guards modReq
modReq map[*http.Request]*http.Request // original -> modified
}
// RoundTrip authorizes and authenticates the request with an
// access token. If no token exists or token is expired,
// tries to refresh/fetch a new token.
func (t *Transport) RoundTrip(req *http.Request) (*http.Response, error) {
if t.Source == nil {
return nil, errors.New("oauth2: Transport's Source is nil")
}
token, err := t.Source.Token()
if err != nil {
return nil, err
}
req2 := cloneRequest(req) // per RoundTripper contract
token.SetAuthHeader(req2)
t.setModReq(req, req2)
res, err := t.base().RoundTrip(req2)
if err != nil {
t.setModReq(req, nil)
return nil, err
}
res.Body = &onEOFReader{
rc: res.Body,
fn: func() { t.setModReq(req, nil) },
}
return res, nil
}
// CancelRequest cancels an in-flight request by closing its connection.
func (t *Transport) CancelRequest(req *http.Request) {
type canceler interface {
CancelRequest(*http.Request)
}
if cr, ok := t.base().(canceler); ok {
t.mu.Lock()
modReq := t.modReq[req]
delete(t.modReq, req)
t.mu.Unlock()
cr.CancelRequest(modReq)
}
}
func (t *Transport) base() http.RoundTripper {
if t.Base != nil {
return t.Base
}
return http.DefaultTransport
}
func (t *Transport) setModReq(orig, mod *http.Request) {
t.mu.Lock()
defer t.mu.Unlock()
if t.modReq == nil {
t.modReq = make(map[*http.Request]*http.Request)
}
if mod == nil {
delete(t.modReq, orig)
} else {
t.modReq[orig] = mod
}
}
// cloneRequest returns a clone of the provided *http.Request.
// The clone is a shallow copy of the struct and its Header map.
func cloneRequest(r *http.Request) *http.Request {
// shallow copy of the struct
r2 := new(http.Request)
*r2 = *r
// deep copy of the Header
r2.Header = make(http.Header, len(r.Header))
for k, s := range r.Header {
r2.Header[k] = append([]string(nil), s...)
}
return r2
}
type onEOFReader struct {
rc io.ReadCloser
fn func()
}
func (r *onEOFReader) Read(p []byte) (n int, err error) {
n, err = r.rc.Read(p)
if err == io.EOF {
r.runFunc()
}
return
}
func (r *onEOFReader) Close() error {
err := r.rc.Close()
r.runFunc()
return err
}
func (r *onEOFReader) runFunc() {
if fn := r.fn; fn != nil {
fn()
r.fn = nil
}
}

202
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
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defend, and hold each Contributor harmless for any liability
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of your accepting any such warranty or additional liability.
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Copyright [yyyy] [name of copyright owner]
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you may not use this file except in compliance with the License.
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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# Go App Engine packages
[![Build Status](https://travis-ci.org/golang/appengine.svg)](https://travis-ci.org/golang/appengine)
This repository supports the Go runtime on App Engine,
including both the standard App Engine and the
"App Engine flexible environment" (formerly known as "Managed VMs").
It provides APIs for interacting with App Engine services.
Its canonical import path is `google.golang.org/appengine`.
See https://cloud.google.com/appengine/docs/go/
for more information.
File issue reports and feature requests on the [Google App Engine issue
tracker](https://code.google.com/p/googleappengine/issues/entry?template=Go%20defect).
## Directory structure
The top level directory of this repository is the `appengine` package. It
contains the
basic APIs (e.g. `appengine.NewContext`) that apply across APIs. Specific API
packages are in subdirectories (e.g. `datastore`).
There is an `internal` subdirectory that contains service protocol buffers,
plus packages required for connectivity to make API calls. App Engine apps
should not directly import any package under `internal`.
## Updating a Go App Engine app
This section describes how to update an older Go App Engine app to use
these packages. A provided tool, `aefix`, can help automate steps 2 and 3
(run `go get google.golang.org/appengine/cmd/aefix` to install it), but
read the details below since `aefix` can't perform all the changes.
### 1. Update YAML files (App Engine flexible environment / Managed VMs only)
The `app.yaml` file (and YAML files for modules) should have these new lines added:
```
vm: true
```
See https://cloud.google.com/appengine/docs/go/modules/#Go_Instance_scaling_and_class for details.
### 2. Update import paths
The import paths for App Engine packages are now fully qualified, based at `google.golang.org/appengine`.
You will need to update your code to use import paths starting with that; for instance,
code importing `appengine/datastore` will now need to import `google.golang.org/appengine/datastore`.
### 3. Update code using deprecated, removed or modified APIs
Most App Engine services are available with exactly the same API.
A few APIs were cleaned up, and some are not available yet.
This list summarises the differences:
* `appengine.Context` has been replaced with the `Context` type from `golang.org/x/net/context`.
* Logging methods that were on `appengine.Context` are now functions in `google.golang.org/appengine/log`.
* `appengine.Timeout` has been removed. Use `context.WithTimeout` instead.
* `appengine.Datacenter` now takes a `context.Context` argument.
* `datastore.PropertyLoadSaver` has been simplified to use slices in place of channels.
* `delay.Call` now returns an error.
* `search.FieldLoadSaver` now handles document metadata.
* `urlfetch.Transport` no longer has a Deadline field; set a deadline on the
`context.Context` instead.
* `aetest` no longer declares its own Context type, and uses the standard one instead.
* `taskqueue.QueueStats` no longer takes a maxTasks argument. That argument has been
deprecated and unused for a long time.
* `appengine.BackendHostname` and `appengine.BackendInstance` were for the deprecated backends feature.
Use `appengine.ModuleHostname`and `appengine.ModuleName` instead.
* Most of `appengine/file` and parts of `appengine/blobstore` are deprecated.
Use [Google Cloud Storage](https://godoc.org/google.golang.org/cloud/storage) instead.
* `appengine/socket` is not required on App Engine flexible environment / Managed VMs.
Use the standard `net` package instead.

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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// Package appengine provides basic functionality for Google App Engine.
//
// For more information on how to write Go apps for Google App Engine, see:
// https://cloud.google.com/appengine/docs/go/
package appengine // import "google.golang.org/appengine"
import (
"net/http"
"github.com/golang/protobuf/proto"
"golang.org/x/net/context"
"google.golang.org/appengine/internal"
)
// IsDevAppServer reports whether the App Engine app is running in the
// development App Server.
func IsDevAppServer() bool {
return internal.IsDevAppServer()
}
// NewContext returns a context for an in-flight HTTP request.
// This function is cheap.
func NewContext(req *http.Request) context.Context {
return WithContext(context.Background(), req)
}
// WithContext returns a copy of the parent context
// and associates it with an in-flight HTTP request.
// This function is cheap.
func WithContext(parent context.Context, req *http.Request) context.Context {
return internal.WithContext(parent, req)
}
// TODO(dsymonds): Add a Call function here? Otherwise other packages can't access internal.Call.
// BlobKey is a key for a blobstore blob.
//
// Conceptually, this type belongs in the blobstore package, but it lives in
// the appengine package to avoid a circular dependency: blobstore depends on
// datastore, and datastore needs to refer to the BlobKey type.
type BlobKey string
// GeoPoint represents a location as latitude/longitude in degrees.
type GeoPoint struct {
Lat, Lng float64
}
// Valid returns whether a GeoPoint is within [-90, 90] latitude and [-180, 180] longitude.
func (g GeoPoint) Valid() bool {
return -90 <= g.Lat && g.Lat <= 90 && -180 <= g.Lng && g.Lng <= 180
}
// APICallFunc defines a function type for handling an API call.
// See WithCallOverride.
type APICallFunc func(ctx context.Context, service, method string, in, out proto.Message) error
// WithAPICallFunc returns a copy of the parent context
// that will cause API calls to invoke f instead of their normal operation.
//
// This is intended for advanced users only.
func WithAPICallFunc(ctx context.Context, f APICallFunc) context.Context {
return internal.WithCallOverride(ctx, internal.CallOverrideFunc(f))
}
// APICall performs an API call.
//
// This is not intended for general use; it is exported for use in conjunction
// with WithAPICallFunc.
func APICall(ctx context.Context, service, method string, in, out proto.Message) error {
return internal.Call(ctx, service, method, in, out)
}

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vendor/google.golang.org/appengine/appengine_vm.go generated vendored
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// Copyright 2015 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// +build !appengine
package appengine
import (
"golang.org/x/net/context"
"google.golang.org/appengine/internal"
)
// The comment below must not be changed.
// It is used by go-app-builder to recognise that this package has
// the Main function to use in the synthetic main.
// The gophers party all night; the rabbits provide the beats.
// Main is the principal entry point for an app running in App Engine "flexible environment".
// It installs a trivial health checker if one isn't already registered,
// and starts listening on port 8080 (overridden by the $PORT environment
// variable).
//
// See https://cloud.google.com/appengine/docs/flexible/custom-runtimes#health_check_requests
// for details on how to do your own health checking.
//
// Main never returns.
//
// Main is designed so that the app's main package looks like this:
//
// package main
//
// import (
// "google.golang.org/appengine"
//
// _ "myapp/package0"
// _ "myapp/package1"
// )
//
// func main() {
// appengine.Main()
// }
//
// The "myapp/packageX" packages are expected to register HTTP handlers
// in their init functions.
func Main() {
internal.Main()
}
// BackgroundContext returns a context not associated with a request.
// This should only be used when not servicing a request.
// This only works in App Engine "flexible environment".
func BackgroundContext() context.Context {
return internal.BackgroundContext()
}

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vendor/google.golang.org/appengine/errors.go generated vendored
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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// This file provides error functions for common API failure modes.
package appengine
import (
"fmt"
"google.golang.org/appengine/internal"
)
// IsOverQuota reports whether err represents an API call failure
// due to insufficient available quota.
func IsOverQuota(err error) bool {
callErr, ok := err.(*internal.CallError)
return ok && callErr.Code == 4
}
// MultiError is returned by batch operations when there are errors with
// particular elements. Errors will be in a one-to-one correspondence with
// the input elements; successful elements will have a nil entry.
type MultiError []error
func (m MultiError) Error() string {
s, n := "", 0
for _, e := range m {
if e != nil {
if n == 0 {
s = e.Error()
}
n++
}
}
switch n {
case 0:
return "(0 errors)"
case 1:
return s
case 2:
return s + " (and 1 other error)"
}
return fmt.Sprintf("%s (and %d other errors)", s, n-1)
}

142
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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package appengine
import (
"time"
"golang.org/x/net/context"
"google.golang.org/appengine/internal"
pb "google.golang.org/appengine/internal/app_identity"
modpb "google.golang.org/appengine/internal/modules"
)
// AppID returns the application ID for the current application.
// The string will be a plain application ID (e.g. "appid"), with a
// domain prefix for custom domain deployments (e.g. "example.com:appid").
func AppID(c context.Context) string { return internal.AppID(c) }
// DefaultVersionHostname returns the standard hostname of the default version
// of the current application (e.g. "my-app.appspot.com"). This is suitable for
// use in constructing URLs.
func DefaultVersionHostname(c context.Context) string {
return internal.DefaultVersionHostname(c)
}
// ModuleName returns the module name of the current instance.
func ModuleName(c context.Context) string {
return internal.ModuleName(c)
}
// ModuleHostname returns a hostname of a module instance.
// If module is the empty string, it refers to the module of the current instance.
// If version is empty, it refers to the version of the current instance if valid,
// or the default version of the module of the current instance.
// If instance is empty, ModuleHostname returns the load-balancing hostname.
func ModuleHostname(c context.Context, module, version, instance string) (string, error) {
req := &modpb.GetHostnameRequest{}
if module != "" {
req.Module = &module
}
if version != "" {
req.Version = &version
}
if instance != "" {
req.Instance = &instance
}
res := &modpb.GetHostnameResponse{}
if err := internal.Call(c, "modules", "GetHostname", req, res); err != nil {
return "", err
}
return *res.Hostname, nil
}
// VersionID returns the version ID for the current application.
// It will be of the form "X.Y", where X is specified in app.yaml,
// and Y is a number generated when each version of the app is uploaded.
// It does not include a module name.
func VersionID(c context.Context) string { return internal.VersionID(c) }
// InstanceID returns a mostly-unique identifier for this instance.
func InstanceID() string { return internal.InstanceID() }
// Datacenter returns an identifier for the datacenter that the instance is running in.
func Datacenter(c context.Context) string { return internal.Datacenter(c) }
// ServerSoftware returns the App Engine release version.
// In production, it looks like "Google App Engine/X.Y.Z".
// In the development appserver, it looks like "Development/X.Y".
func ServerSoftware() string { return internal.ServerSoftware() }
// RequestID returns a string that uniquely identifies the request.
func RequestID(c context.Context) string { return internal.RequestID(c) }
// AccessToken generates an OAuth2 access token for the specified scopes on
// behalf of service account of this application. This token will expire after
// the returned time.
func AccessToken(c context.Context, scopes ...string) (token string, expiry time.Time, err error) {
req := &pb.GetAccessTokenRequest{Scope: scopes}
res := &pb.GetAccessTokenResponse{}
err = internal.Call(c, "app_identity_service", "GetAccessToken", req, res)
if err != nil {
return "", time.Time{}, err
}
return res.GetAccessToken(), time.Unix(res.GetExpirationTime(), 0), nil
}
// Certificate represents a public certificate for the app.
type Certificate struct {
KeyName string
Data []byte // PEM-encoded X.509 certificate
}
// PublicCertificates retrieves the public certificates for the app.
// They can be used to verify a signature returned by SignBytes.
func PublicCertificates(c context.Context) ([]Certificate, error) {
req := &pb.GetPublicCertificateForAppRequest{}
res := &pb.GetPublicCertificateForAppResponse{}
if err := internal.Call(c, "app_identity_service", "GetPublicCertificatesForApp", req, res); err != nil {
return nil, err
}
var cs []Certificate
for _, pc := range res.PublicCertificateList {
cs = append(cs, Certificate{
KeyName: pc.GetKeyName(),
Data: []byte(pc.GetX509CertificatePem()),
})
}
return cs, nil
}
// ServiceAccount returns a string representing the service account name, in
// the form of an email address (typically app_id@appspot.gserviceaccount.com).
func ServiceAccount(c context.Context) (string, error) {
req := &pb.GetServiceAccountNameRequest{}
res := &pb.GetServiceAccountNameResponse{}
err := internal.Call(c, "app_identity_service", "GetServiceAccountName", req, res)
if err != nil {
return "", err
}
return res.GetServiceAccountName(), err
}
// SignBytes signs bytes using a private key unique to your application.
func SignBytes(c context.Context, bytes []byte) (keyName string, signature []byte, err error) {
req := &pb.SignForAppRequest{BytesToSign: bytes}
res := &pb.SignForAppResponse{}
if err := internal.Call(c, "app_identity_service", "SignForApp", req, res); err != nil {
return "", nil, err
}
return res.GetKeyName(), res.GetSignatureBytes(), nil
}
func init() {
internal.RegisterErrorCodeMap("app_identity_service", pb.AppIdentityServiceError_ErrorCode_name)
internal.RegisterErrorCodeMap("modules", modpb.ModulesServiceError_ErrorCode_name)
}

509
vendor/google.golang.org/appengine/internal/api.go generated vendored
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@ -1,509 +0,0 @@
// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// +build !appengine
package internal
import (
"bytes"
"errors"
"fmt"
"io/ioutil"
"log"
"net"
"net/http"
"net/url"
"os"
"runtime"
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/golang/protobuf/proto"
netcontext "golang.org/x/net/context"
remotepb "google.golang.org/appengine/internal/remote_api"
)
const (
apiPath = "/rpc_http"
)
var (
// Incoming headers.
ticketHeader = http.CanonicalHeaderKey("X-AppEngine-API-Ticket")
dapperHeader = http.CanonicalHeaderKey("X-Google-DapperTraceInfo")
traceHeader = http.CanonicalHeaderKey("X-Cloud-Trace-Context")
curNamespaceHeader = http.CanonicalHeaderKey("X-AppEngine-Current-Namespace")
userIPHeader = http.CanonicalHeaderKey("X-AppEngine-User-IP")
remoteAddrHeader = http.CanonicalHeaderKey("X-AppEngine-Remote-Addr")
// Outgoing headers.
apiEndpointHeader = http.CanonicalHeaderKey("X-Google-RPC-Service-Endpoint")
apiEndpointHeaderValue = []string{"app-engine-apis"}
apiMethodHeader = http.CanonicalHeaderKey("X-Google-RPC-Service-Method")
apiMethodHeaderValue = []string{"/VMRemoteAPI.CallRemoteAPI"}
apiDeadlineHeader = http.CanonicalHeaderKey("X-Google-RPC-Service-Deadline")
apiContentType = http.CanonicalHeaderKey("Content-Type")
apiContentTypeValue = []string{"application/octet-stream"}
apiHTTPClient = &http.Client{
Transport: &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: limitDial,
},
}
)
func apiURL() *url.URL {
host, port := "appengine.googleapis.internal", "10001"
if h := os.Getenv("API_HOST"); h != "" {
host = h
}
if p := os.Getenv("API_PORT"); p != "" {
port = p
}
return &url.URL{
Scheme: "http",
Host: host + ":" + port,
Path: apiPath,
}
}
func handleHTTP(w http.ResponseWriter, r *http.Request) {
c := &context{
req: r,
outHeader: w.Header(),
apiURL: apiURL(),
logger: globalLogger(),
}
ctxs.Lock()
ctxs.m[r] = c
ctxs.Unlock()
defer func() {
ctxs.Lock()
delete(ctxs.m, r)
ctxs.Unlock()
}()
// Patch up RemoteAddr so it looks reasonable.
if addr := r.Header.Get(userIPHeader); addr != "" {
r.RemoteAddr = addr
} else if addr = r.Header.Get(remoteAddrHeader); addr != "" {
r.RemoteAddr = addr
} else {
// Should not normally reach here, but pick a sensible default anyway.
r.RemoteAddr = "127.0.0.1"
}
// The address in the headers will most likely be of these forms:
// 123.123.123.123
// 2001:db8::1
// net/http.Request.RemoteAddr is specified to be in "IP:port" form.
if _, _, err := net.SplitHostPort(r.RemoteAddr); err != nil {
// Assume the remote address is only a host; add a default port.
r.RemoteAddr = net.JoinHostPort(r.RemoteAddr, "80")
}
executeRequestSafely(c, r)
c.outHeader = nil // make sure header changes aren't respected any more
// Avoid nil Write call if c.Write is never called.
if c.outCode != 0 {
w.WriteHeader(c.outCode)
}
if c.outBody != nil {
w.Write(c.outBody)
}
}
func executeRequestSafely(c *context, r *http.Request) {
defer func() {
if x := recover(); x != nil {
logf(c, 4, "%s", renderPanic(x)) // 4 == critical
c.outCode = 500
}
}()
http.DefaultServeMux.ServeHTTP(c, r)
}
func renderPanic(x interface{}) string {
buf := make([]byte, 16<<10) // 16 KB should be plenty
buf = buf[:runtime.Stack(buf, false)]
// Remove the first few stack frames:
// this func
// the recover closure in the caller
// That will root the stack trace at the site of the panic.
const (
skipStart = "internal.renderPanic"
skipFrames = 2
)
start := bytes.Index(buf, []byte(skipStart))
p := start
for i := 0; i < skipFrames*2 && p+1 < len(buf); i++ {
p = bytes.IndexByte(buf[p+1:], '\n') + p + 1
if p < 0 {
break
}
}
if p >= 0 {
// buf[start:p+1] is the block to remove.
// Copy buf[p+1:] over buf[start:] and shrink buf.
copy(buf[start:], buf[p+1:])
buf = buf[:len(buf)-(p+1-start)]
}
// Add panic heading.
head := fmt.Sprintf("panic: %v\n\n", x)
if len(head) > len(buf) {
// Extremely unlikely to happen.
return head
}
copy(buf[len(head):], buf)
copy(buf, head)
return string(buf)
}
var ctxs = struct {
sync.Mutex
m map[*http.Request]*context
bg *context // background context, lazily initialized
// dec is used by tests to decorate the netcontext.Context returned
// for a given request. This allows tests to add overrides (such as
// WithAppIDOverride) to the context. The map is nil outside tests.
dec map[*http.Request]func(netcontext.Context) netcontext.Context
}{
m: make(map[*http.Request]*context),
}
// context represents the context of an in-flight HTTP request.
// It implements the appengine.Context and http.ResponseWriter interfaces.
type context struct {
req *http.Request
logger *jsonLogger
outCode int
outHeader http.Header
outBody []byte
apiURL *url.URL
}
var contextKey = "holds a *context"
func fromContext(ctx netcontext.Context) *context {
c, _ := ctx.Value(&contextKey).(*context)
return c
}
func withContext(parent netcontext.Context, c *context) netcontext.Context {
ctx := netcontext.WithValue(parent, &contextKey, c)
if ns := c.req.Header.Get(curNamespaceHeader); ns != "" {
ctx = withNamespace(ctx, ns)
}
return ctx
}
func toContext(c *context) netcontext.Context {
return withContext(netcontext.Background(), c)
}
func IncomingHeaders(ctx netcontext.Context) http.Header {
if c := fromContext(ctx); c != nil {
return c.req.Header
}
return nil
}
func WithContext(parent netcontext.Context, req *http.Request) netcontext.Context {
ctxs.Lock()
c := ctxs.m[req]
d := ctxs.dec[req]
ctxs.Unlock()
if d != nil {
parent = d(parent)
}
if c == nil {
// Someone passed in an http.Request that is not in-flight.
// We panic here rather than panicking at a later point
// so that stack traces will be more sensible.
log.Panic("appengine: NewContext passed an unknown http.Request")
}
return withContext(parent, c)
}
func BackgroundContext() netcontext.Context {
ctxs.Lock()
defer ctxs.Unlock()
if ctxs.bg != nil {
return toContext(ctxs.bg)
}
// Compute background security ticket.
appID := partitionlessAppID()
escAppID := strings.Replace(strings.Replace(appID, ":", "_", -1), ".", "_", -1)
majVersion := VersionID(nil)
if i := strings.Index(majVersion, "."); i > 0 {
majVersion = majVersion[:i]
}
ticket := fmt.Sprintf("%s/%s.%s.%s", escAppID, ModuleName(nil), majVersion, InstanceID())
ctxs.bg = &context{
req: &http.Request{
Header: http.Header{
ticketHeader: []string{ticket},
},
},
apiURL: apiURL(),
logger: globalLogger(),
}
return toContext(ctxs.bg)
}
// RegisterTestRequest registers the HTTP request req for testing, such that
// any API calls are sent to the provided URL. It returns a closure to delete
// the registration.
// It should only be used by aetest package.
func RegisterTestRequest(req *http.Request, apiURL *url.URL, decorate func(netcontext.Context) netcontext.Context) func() {
c := &context{
req: req,
apiURL: apiURL,
logger: globalLogger(),
}
ctxs.Lock()
defer ctxs.Unlock()
if _, ok := ctxs.m[req]; ok {
log.Panic("req already associated with context")
}
if _, ok := ctxs.dec[req]; ok {
log.Panic("req already associated with context")
}
if ctxs.dec == nil {
ctxs.dec = make(map[*http.Request]func(netcontext.Context) netcontext.Context)
}
ctxs.m[req] = c
ctxs.dec[req] = decorate
return func() {
ctxs.Lock()
delete(ctxs.m, req)
delete(ctxs.dec, req)
ctxs.Unlock()
}
}
var errTimeout = &CallError{
Detail: "Deadline exceeded",
Code: int32(remotepb.RpcError_CANCELLED),
Timeout: true,
}
func (c *context) Header() http.Header { return c.outHeader }
// Copied from $GOROOT/src/pkg/net/http/transfer.go. Some response status
// codes do not permit a response body (nor response entity headers such as
// Content-Length, Content-Type, etc).
func bodyAllowedForStatus(status int) bool {
switch {
case status >= 100 && status <= 199:
return false
case status == 204:
return false
case status == 304:
return false
}
return true
}
func (c *context) Write(b []byte) (int, error) {
if c.outCode == 0 {
c.WriteHeader(http.StatusOK)
}
if len(b) > 0 && !bodyAllowedForStatus(c.outCode) {
return 0, http.ErrBodyNotAllowed
}
c.outBody = append(c.outBody, b...)
return len(b), nil
}
func (c *context) WriteHeader(code int) {
if c.outCode != 0 {
logf(c, 3, "WriteHeader called multiple times on request.") // error level
return
}
c.outCode = code
}
func (c *context) post(body []byte, timeout time.Duration) (b []byte, err error) {
hreq := &http.Request{
Method: "POST",
URL: c.apiURL,
Header: http.Header{
apiEndpointHeader: apiEndpointHeaderValue,
apiMethodHeader: apiMethodHeaderValue,
apiContentType: apiContentTypeValue,
apiDeadlineHeader: []string{strconv.FormatFloat(timeout.Seconds(), 'f', -1, 64)},
},
Body: ioutil.NopCloser(bytes.NewReader(body)),
ContentLength: int64(len(body)),
Host: c.apiURL.Host,
}
if info := c.req.Header.Get(dapperHeader); info != "" {
hreq.Header.Set(dapperHeader, info)
}
if info := c.req.Header.Get(traceHeader); info != "" {
hreq.Header.Set(traceHeader, info)
}
tr := apiHTTPClient.Transport.(*http.Transport)
var timedOut int32 // atomic; set to 1 if timed out
t := time.AfterFunc(timeout, func() {
atomic.StoreInt32(&timedOut, 1)
tr.CancelRequest(hreq)
})
defer t.Stop()
defer func() {
// Check if timeout was exceeded.
if atomic.LoadInt32(&timedOut) != 0 {
err = errTimeout
}
}()
hresp, err := apiHTTPClient.Do(hreq)
if err != nil {
return nil, &CallError{
Detail: fmt.Sprintf("service bridge HTTP failed: %v", err),
Code: int32(remotepb.RpcError_UNKNOWN),
}
}
defer hresp.Body.Close()
hrespBody, err := ioutil.ReadAll(hresp.Body)
if hresp.StatusCode != 200 {
return nil, &CallError{
Detail: fmt.Sprintf("service bridge returned HTTP %d (%q)", hresp.StatusCode, hrespBody),
Code: int32(remotepb.RpcError_UNKNOWN),
}
}
if err != nil {
return nil, &CallError{
Detail: fmt.Sprintf("service bridge response bad: %v", err),
Code: int32(remotepb.RpcError_UNKNOWN),
}
}
return hrespBody, nil
}
func Call(ctx netcontext.Context, service, method string, in, out proto.Message) error {
if ns := NamespaceFromContext(ctx); ns != "" {
if fn, ok := NamespaceMods[service]; ok {
fn(in, ns)
}
}
if f, ctx, ok := callOverrideFromContext(ctx); ok {
return f(ctx, service, method, in, out)
}
// Handle already-done contexts quickly.
select {
case <-ctx.Done():
return ctx.Err()
default:
}
c := fromContext(ctx)
if c == nil {
// Give a good error message rather than a panic lower down.
return errors.New("not an App Engine context")
}
// Apply transaction modifications if we're in a transaction.
if t := transactionFromContext(ctx); t != nil {
if t.finished {
return errors.New("transaction context has expired")
}
applyTransaction(in, &t.transaction)
}
// Default RPC timeout is 60s.
timeout := 60 * time.Second
if deadline, ok := ctx.Deadline(); ok {
timeout = deadline.Sub(time.Now())
}
data, err := proto.Marshal(in)
if err != nil {
return err
}
ticket := c.req.Header.Get(ticketHeader)
req := &remotepb.Request{
ServiceName: &service,
Method: &method,
Request: data,
RequestId: &ticket,
}
hreqBody, err := proto.Marshal(req)
if err != nil {
return err
}
hrespBody, err := c.post(hreqBody, timeout)
if err != nil {
return err
}
res := &remotepb.Response{}
if err := proto.Unmarshal(hrespBody, res); err != nil {
return err
}
if res.RpcError != nil {
ce := &CallError{
Detail: res.RpcError.GetDetail(),
Code: *res.RpcError.Code,
}
switch remotepb.RpcError_ErrorCode(ce.Code) {
case remotepb.RpcError_CANCELLED, remotepb.RpcError_DEADLINE_EXCEEDED:
ce.Timeout = true
}
return ce
}
if res.ApplicationError != nil {
return &APIError{
Service: *req.ServiceName,
Detail: res.ApplicationError.GetDetail(),
Code: *res.ApplicationError.Code,
}
}
if res.Exception != nil || res.JavaException != nil {
// This shouldn't happen, but let's be defensive.
return &CallError{
Detail: "service bridge returned exception",
Code: int32(remotepb.RpcError_UNKNOWN),
}
}
return proto.Unmarshal(res.Response, out)
}
func (c *context) Request() *http.Request {
return c.req
}
func ContextForTesting(req *http.Request) netcontext.Context {
return toContext(&context{
req: req,
logger: testLogger,
})
}

159
vendor/google.golang.org/appengine/internal/api_classic.go generated vendored
View File

@ -1,159 +0,0 @@
// Copyright 2015 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// +build appengine
package internal
import (
"errors"
"fmt"
"net/http"
"time"
"appengine"
"appengine_internal"
basepb "appengine_internal/base"
"github.com/golang/protobuf/proto"
netcontext "golang.org/x/net/context"
)
var contextKey = "holds an appengine.Context"
func fromContext(ctx netcontext.Context) appengine.Context {
c, _ := ctx.Value(&contextKey).(appengine.Context)
return c
}
// This is only for classic App Engine adapters.
func ClassicContextFromContext(ctx netcontext.Context) appengine.Context {
return fromContext(ctx)
}
func withContext(parent netcontext.Context, c appengine.Context) netcontext.Context {
ctx := netcontext.WithValue(parent, &contextKey, c)
s := &basepb.StringProto{}
c.Call("__go__", "GetNamespace", &basepb.VoidProto{}, s, nil)
if ns := s.GetValue(); ns != "" {
ctx = NamespacedContext(ctx, ns)
}
return ctx
}
func IncomingHeaders(ctx netcontext.Context) http.Header {
if c := fromContext(ctx); c != nil {
if req, ok := c.Request().(*http.Request); ok {
return req.Header
}
}
return nil
}
func WithContext(parent netcontext.Context, req *http.Request) netcontext.Context {
c := appengine.NewContext(req)
return withContext(parent, c)
}
type testingContext struct {
appengine.Context
req *http.Request
}
func (t *testingContext) FullyQualifiedAppID() string { return "dev~testcontext" }
func (t *testingContext) Call(service, method string, _, _ appengine_internal.ProtoMessage, _ *appengine_internal.CallOptions) error {
if service == "__go__" && method == "GetNamespace" {
return nil
}
return fmt.Errorf("testingContext: unsupported Call")
}
func (t *testingContext) Request() interface{} { return t.req }
func ContextForTesting(req *http.Request) netcontext.Context {
return withContext(netcontext.Background(), &testingContext{req: req})
}
func Call(ctx netcontext.Context, service, method string, in, out proto.Message) error {
if ns := NamespaceFromContext(ctx); ns != "" {
if fn, ok := NamespaceMods[service]; ok {
fn(in, ns)
}
}
if f, ctx, ok := callOverrideFromContext(ctx); ok {
return f(ctx, service, method, in, out)
}
// Handle already-done contexts quickly.
select {
case <-ctx.Done():
return ctx.Err()
default:
}
c := fromContext(ctx)
if c == nil {
// Give a good error message rather than a panic lower down.
return errors.New("not an App Engine context")
}
// Apply transaction modifications if we're in a transaction.
if t := transactionFromContext(ctx); t != nil {
if t.finished {
return errors.New("transaction context has expired")
}
applyTransaction(in, &t.transaction)
}
var opts *appengine_internal.CallOptions
if d, ok := ctx.Deadline(); ok {
opts = &appengine_internal.CallOptions{
Timeout: d.Sub(time.Now()),
}
}
err := c.Call(service, method, in, out, opts)
switch v := err.(type) {
case *appengine_internal.APIError:
return &APIError{
Service: v.Service,
Detail: v.Detail,
Code: v.Code,
}
case *appengine_internal.CallError:
return &CallError{
Detail: v.Detail,
Code: v.Code,
Timeout: v.Timeout,
}
}
return err
}
func handleHTTP(w http.ResponseWriter, r *http.Request) {
panic("handleHTTP called; this should be impossible")
}
func logf(c appengine.Context, level int64, format string, args ...interface{}) {
var fn func(format string, args ...interface{})
switch level {
case 0:
fn = c.Debugf
case 1:
fn = c.Infof
case 2:
fn = c.Warningf
case 3:
fn = c.Errorf
case 4:
fn = c.Criticalf
default:
// This shouldn't happen.
fn = c.Criticalf
}
fn(format, args...)
}

86
vendor/google.golang.org/appengine/internal/api_common.go generated vendored
View File

@ -1,86 +0,0 @@
// Copyright 2015 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package internal
import (
"github.com/golang/protobuf/proto"
netcontext "golang.org/x/net/context"
)
type CallOverrideFunc func(ctx netcontext.Context, service, method string, in, out proto.Message) error
var callOverrideKey = "holds []CallOverrideFunc"
func WithCallOverride(ctx netcontext.Context, f CallOverrideFunc) netcontext.Context {
// We avoid appending to any existing call override
// so we don't risk overwriting a popped stack below.
var cofs []CallOverrideFunc
if uf, ok := ctx.Value(&callOverrideKey).([]CallOverrideFunc); ok {
cofs = append(cofs, uf...)
}
cofs = append(cofs, f)
return netcontext.WithValue(ctx, &callOverrideKey, cofs)
}
func callOverrideFromContext(ctx netcontext.Context) (CallOverrideFunc, netcontext.Context, bool) {
cofs, _ := ctx.Value(&callOverrideKey).([]CallOverrideFunc)
if len(cofs) == 0 {
return nil, nil, false
}
// We found a list of overrides; grab the last, and reconstitute a
// context that will hide it.
f := cofs[len(cofs)-1]
ctx = netcontext.WithValue(ctx, &callOverrideKey, cofs[:len(cofs)-1])
return f, ctx, true
}
type logOverrideFunc func(level int64, format string, args ...interface{})
var logOverrideKey = "holds a logOverrideFunc"
func WithLogOverride(ctx netcontext.Context, f logOverrideFunc) netcontext.Context {
return netcontext.WithValue(ctx, &logOverrideKey, f)
}
var appIDOverrideKey = "holds a string, being the full app ID"
func WithAppIDOverride(ctx netcontext.Context, appID string) netcontext.Context {
return netcontext.WithValue(ctx, &appIDOverrideKey, appID)
}
var namespaceKey = "holds the namespace string"
func withNamespace(ctx netcontext.Context, ns string) netcontext.Context {
return netcontext.WithValue(ctx, &namespaceKey, ns)
}
func NamespaceFromContext(ctx netcontext.Context) string {
// If there's no namespace, return the empty string.
ns, _ := ctx.Value(&namespaceKey).(string)
return ns
}
// FullyQualifiedAppID returns the fully-qualified application ID.
// This may contain a partition prefix (e.g. "s~" for High Replication apps),
// or a domain prefix (e.g. "example.com:").
func FullyQualifiedAppID(ctx netcontext.Context) string {
if id, ok := ctx.Value(&appIDOverrideKey).(string); ok {
return id
}
return fullyQualifiedAppID(ctx)
}
func Logf(ctx netcontext.Context, level int64, format string, args ...interface{}) {
if f, ok := ctx.Value(&logOverrideKey).(logOverrideFunc); ok {
f(level, format, args...)
return
}
logf(fromContext(ctx), level, format, args...)
}
// NamespacedContext wraps a Context to support namespaces.
func NamespacedContext(ctx netcontext.Context, namespace string) netcontext.Context {
return withNamespace(ctx, namespace)
}

28
vendor/google.golang.org/appengine/internal/app_id.go generated vendored
View File

@ -1,28 +0,0 @@
// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package internal
import (
"strings"
)
func parseFullAppID(appid string) (partition, domain, displayID string) {
if i := strings.Index(appid, "~"); i != -1 {
partition, appid = appid[:i], appid[i+1:]
}
if i := strings.Index(appid, ":"); i != -1 {
domain, appid = appid[:i], appid[i+1:]
}
return partition, domain, appid
}
// appID returns "appid" or "domain.com:appid".
func appID(fullAppID string) string {
_, dom, dis := parseFullAppID(fullAppID)
if dom != "" {
return dom + ":" + dis
}
return dis
}

133
vendor/google.golang.org/appengine/internal/base/api_base.pb.go generated vendored
View File

@ -1,133 +0,0 @@
// Code generated by protoc-gen-go.
// source: google.golang.org/appengine/internal/base/api_base.proto
// DO NOT EDIT!
/*
Package base is a generated protocol buffer package.
It is generated from these files:
google.golang.org/appengine/internal/base/api_base.proto
It has these top-level messages:
StringProto
Integer32Proto
Integer64Proto
BoolProto
DoubleProto
BytesProto
VoidProto
*/
package base
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
type StringProto struct {
Value *string `protobuf:"bytes,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *StringProto) Reset() { *m = StringProto{} }
func (m *StringProto) String() string { return proto.CompactTextString(m) }
func (*StringProto) ProtoMessage() {}
func (m *StringProto) GetValue() string {
if m != nil && m.Value != nil {
return *m.Value
}
return ""
}
type Integer32Proto struct {
Value *int32 `protobuf:"varint,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *Integer32Proto) Reset() { *m = Integer32Proto{} }
func (m *Integer32Proto) String() string { return proto.CompactTextString(m) }
func (*Integer32Proto) ProtoMessage() {}
func (m *Integer32Proto) GetValue() int32 {
if m != nil && m.Value != nil {
return *m.Value
}
return 0
}
type Integer64Proto struct {
Value *int64 `protobuf:"varint,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *Integer64Proto) Reset() { *m = Integer64Proto{} }
func (m *Integer64Proto) String() string { return proto.CompactTextString(m) }
func (*Integer64Proto) ProtoMessage() {}
func (m *Integer64Proto) GetValue() int64 {
if m != nil && m.Value != nil {
return *m.Value
}
return 0
}
type BoolProto struct {
Value *bool `protobuf:"varint,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *BoolProto) Reset() { *m = BoolProto{} }
func (m *BoolProto) String() string { return proto.CompactTextString(m) }
func (*BoolProto) ProtoMessage() {}
func (m *BoolProto) GetValue() bool {
if m != nil && m.Value != nil {
return *m.Value
}
return false
}
type DoubleProto struct {
Value *float64 `protobuf:"fixed64,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *DoubleProto) Reset() { *m = DoubleProto{} }
func (m *DoubleProto) String() string { return proto.CompactTextString(m) }
func (*DoubleProto) ProtoMessage() {}
func (m *DoubleProto) GetValue() float64 {
if m != nil && m.Value != nil {
return *m.Value
}
return 0
}
type BytesProto struct {
Value []byte `protobuf:"bytes,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *BytesProto) Reset() { *m = BytesProto{} }
func (m *BytesProto) String() string { return proto.CompactTextString(m) }
func (*BytesProto) ProtoMessage() {}
func (m *BytesProto) GetValue() []byte {
if m != nil {
return m.Value
}
return nil
}
type VoidProto struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *VoidProto) Reset() { *m = VoidProto{} }
func (m *VoidProto) String() string { return proto.CompactTextString(m) }
func (*VoidProto) ProtoMessage() {}

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