Added libs
Signed-off-by: kolaente <konrad@kola-entertainments.de>
This commit is contained in:
parent
08b14a71a9
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@ -0,0 +1,191 @@
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Apache License
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Version 2.0, January 2004
|
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http://www.apache.org/licenses/
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|
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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"License" shall mean the terms and conditions for use, reproduction, and
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@ -0,0 +1,12 @@
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.PHONY: build test bench vet
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|
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build: vet bench
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test:
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go test -v -cover -race
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bench:
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go test -v -cover -race -test.bench=. -test.benchmem
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vet:
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go vet
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@ -0,0 +1,746 @@
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INI [](https://travis-ci.org/go-ini/ini) [](https://sourcegraph.com/github.com/go-ini/ini?badge)
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===
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Package ini provides INI file read and write functionality in Go.
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[简体中文](README_ZH.md)
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## Feature
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- Load multiple data sources(`[]byte`, file and `io.ReadCloser`) with overwrites.
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- Read with recursion values.
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- Read with parent-child sections.
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- Read with auto-increment key names.
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- Read with multiple-line values.
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- Read with tons of helper methods.
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- Read and convert values to Go types.
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- Read and **WRITE** comments of sections and keys.
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- Manipulate sections, keys and comments with ease.
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- Keep sections and keys in order as you parse and save.
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## Installation
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To use a tagged revision:
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go get gopkg.in/ini.v1
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To use with latest changes:
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go get github.com/go-ini/ini
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Please add `-u` flag to update in the future.
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### Testing
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|
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If you want to test on your machine, please apply `-t` flag:
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go get -t gopkg.in/ini.v1
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Please add `-u` flag to update in the future.
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## Getting Started
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### Loading from data sources
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A **Data Source** is either raw data in type `[]byte`, a file name with type `string` or `io.ReadCloser`. You can load **as many data sources as you want**. Passing other types will simply return an error.
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```go
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cfg, err := ini.Load([]byte("raw data"), "filename", ioutil.NopCloser(bytes.NewReader([]byte("some other data"))))
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```
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Or start with an empty object:
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```go
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cfg := ini.Empty()
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```
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When you cannot decide how many data sources to load at the beginning, you will still be able to **Append()** them later.
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```go
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err := cfg.Append("other file", []byte("other raw data"))
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```
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If you have a list of files with possibilities that some of them may not available at the time, and you don't know exactly which ones, you can use `LooseLoad` to ignore nonexistent files without returning error.
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```go
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cfg, err := ini.LooseLoad("filename", "filename_404")
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```
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The cool thing is, whenever the file is available to load while you're calling `Reload` method, it will be counted as usual.
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#### Ignore cases of key name
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When you do not care about cases of section and key names, you can use `InsensitiveLoad` to force all names to be lowercased while parsing.
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```go
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cfg, err := ini.InsensitiveLoad("filename")
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//...
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// sec1 and sec2 are the exactly same section object
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sec1, err := cfg.GetSection("Section")
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sec2, err := cfg.GetSection("SecTIOn")
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// key1 and key2 are the exactly same key object
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key1, err := sec1.GetKey("Key")
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key2, err := sec2.GetKey("KeY")
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```
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#### MySQL-like boolean key
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MySQL's configuration allows a key without value as follows:
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|
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```ini
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[mysqld]
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...
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skip-host-cache
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skip-name-resolve
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```
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By default, this is considered as missing value. But if you know you're going to deal with those cases, you can assign advanced load options:
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```go
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cfg, err := LoadSources(LoadOptions{AllowBooleanKeys: true}, "my.cnf"))
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```
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The value of those keys are always `true`, and when you save to a file, it will keep in the same foramt as you read.
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To generate such keys in your program, you could use `NewBooleanKey`:
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|
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```go
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key, err := sec.NewBooleanKey("skip-host-cache")
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```
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#### Comment
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Take care that following format will be treated as comment:
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1. Line begins with `#` or `;`
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2. Words after `#` or `;`
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3. Words after section name (i.e words after `[some section name]`)
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|
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If you want to save a value with `#` or `;`, please quote them with ``` ` ``` or ``` """ ```.
|
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Alternatively, you can use following `LoadOptions` to completely ignore inline comments:
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|
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```go
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cfg, err := LoadSources(LoadOptions{IgnoreInlineComment: true}, "app.ini"))
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```
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### Working with sections
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To get a section, you would need to:
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|
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```go
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section, err := cfg.GetSection("section name")
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```
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For a shortcut for default section, just give an empty string as name:
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|
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```go
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section, err := cfg.GetSection("")
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```
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|
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When you're pretty sure the section exists, following code could make your life easier:
|
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|
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```go
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section := cfg.Section("section name")
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```
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|
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What happens when the section somehow does not exist? Don't panic, it automatically creates and returns a new section to you.
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To create a new section:
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|
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```go
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err := cfg.NewSection("new section")
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```
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To get a list of sections or section names:
|
||||
|
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```go
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sections := cfg.Sections()
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names := cfg.SectionStrings()
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```
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### Working with keys
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To get a key under a section:
|
||||
|
||||
```go
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key, err := cfg.Section("").GetKey("key name")
|
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```
|
||||
|
||||
Same rule applies to key operations:
|
||||
|
||||
```go
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||||
key := cfg.Section("").Key("key name")
|
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```
|
||||
|
||||
To check if a key exists:
|
||||
|
||||
```go
|
||||
yes := cfg.Section("").HasKey("key name")
|
||||
```
|
||||
|
||||
To create a new key:
|
||||
|
||||
```go
|
||||
err := cfg.Section("").NewKey("name", "value")
|
||||
```
|
||||
|
||||
To get a list of keys or key names:
|
||||
|
||||
```go
|
||||
keys := cfg.Section("").Keys()
|
||||
names := cfg.Section("").KeyStrings()
|
||||
```
|
||||
|
||||
To get a clone hash of keys and corresponding values:
|
||||
|
||||
```go
|
||||
hash := cfg.Section("").KeysHash()
|
||||
```
|
||||
|
||||
### Working with values
|
||||
|
||||
To get a string value:
|
||||
|
||||
```go
|
||||
val := cfg.Section("").Key("key name").String()
|
||||
```
|
||||
|
||||
To validate key value on the fly:
|
||||
|
||||
```go
|
||||
val := cfg.Section("").Key("key name").Validate(func(in string) string {
|
||||
if len(in) == 0 {
|
||||
return "default"
|
||||
}
|
||||
return in
|
||||
})
|
||||
```
|
||||
|
||||
If you do not want any auto-transformation (such as recursive read) for the values, you can get raw value directly (this way you get much better performance):
|
||||
|
||||
```go
|
||||
val := cfg.Section("").Key("key name").Value()
|
||||
```
|
||||
|
||||
To check if raw value exists:
|
||||
|
||||
```go
|
||||
yes := cfg.Section("").HasValue("test value")
|
||||
```
|
||||
|
||||
To get value with types:
|
||||
|
||||
```go
|
||||
// For boolean values:
|
||||
// true when value is: 1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On
|
||||
// false when value is: 0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off
|
||||
v, err = cfg.Section("").Key("BOOL").Bool()
|
||||
v, err = cfg.Section("").Key("FLOAT64").Float64()
|
||||
v, err = cfg.Section("").Key("INT").Int()
|
||||
v, err = cfg.Section("").Key("INT64").Int64()
|
||||
v, err = cfg.Section("").Key("UINT").Uint()
|
||||
v, err = cfg.Section("").Key("UINT64").Uint64()
|
||||
v, err = cfg.Section("").Key("TIME").TimeFormat(time.RFC3339)
|
||||
v, err = cfg.Section("").Key("TIME").Time() // RFC3339
|
||||
|
||||
v = cfg.Section("").Key("BOOL").MustBool()
|
||||
v = cfg.Section("").Key("FLOAT64").MustFloat64()
|
||||
v = cfg.Section("").Key("INT").MustInt()
|
||||
v = cfg.Section("").Key("INT64").MustInt64()
|
||||
v = cfg.Section("").Key("UINT").MustUint()
|
||||
v = cfg.Section("").Key("UINT64").MustUint64()
|
||||
v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339)
|
||||
v = cfg.Section("").Key("TIME").MustTime() // RFC3339
|
||||
|
||||
// Methods start with Must also accept one argument for default value
|
||||
// when key not found or fail to parse value to given type.
|
||||
// Except method MustString, which you have to pass a default value.
|
||||
|
||||
v = cfg.Section("").Key("String").MustString("default")
|
||||
v = cfg.Section("").Key("BOOL").MustBool(true)
|
||||
v = cfg.Section("").Key("FLOAT64").MustFloat64(1.25)
|
||||
v = cfg.Section("").Key("INT").MustInt(10)
|
||||
v = cfg.Section("").Key("INT64").MustInt64(99)
|
||||
v = cfg.Section("").Key("UINT").MustUint(3)
|
||||
v = cfg.Section("").Key("UINT64").MustUint64(6)
|
||||
v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339, time.Now())
|
||||
v = cfg.Section("").Key("TIME").MustTime(time.Now()) // RFC3339
|
||||
```
|
||||
|
||||
What if my value is three-line long?
|
||||
|
||||
```ini
|
||||
[advance]
|
||||
ADDRESS = """404 road,
|
||||
NotFound, State, 5000
|
||||
Earth"""
|
||||
```
|
||||
|
||||
Not a problem!
|
||||
|
||||
```go
|
||||
cfg.Section("advance").Key("ADDRESS").String()
|
||||
|
||||
/* --- start ---
|
||||
404 road,
|
||||
NotFound, State, 5000
|
||||
Earth
|
||||
------ end --- */
|
||||
```
|
||||
|
||||
That's cool, how about continuation lines?
|
||||
|
||||
```ini
|
||||
[advance]
|
||||
two_lines = how about \
|
||||
continuation lines?
|
||||
lots_of_lines = 1 \
|
||||
2 \
|
||||
3 \
|
||||
4
|
||||
```
|
||||
|
||||
Piece of cake!
|
||||
|
||||
```go
|
||||
cfg.Section("advance").Key("two_lines").String() // how about continuation lines?
|
||||
cfg.Section("advance").Key("lots_of_lines").String() // 1 2 3 4
|
||||
```
|
||||
|
||||
Well, I hate continuation lines, how do I disable that?
|
||||
|
||||
```go
|
||||
cfg, err := ini.LoadSources(ini.LoadOptions{
|
||||
IgnoreContinuation: true,
|
||||
}, "filename")
|
||||
```
|
||||
|
||||
Holy crap!
|
||||
|
||||
Note that single quotes around values will be stripped:
|
||||
|
||||
```ini
|
||||
foo = "some value" // foo: some value
|
||||
bar = 'some value' // bar: some value
|
||||
```
|
||||
|
||||
That's all? Hmm, no.
|
||||
|
||||
#### Helper methods of working with values
|
||||
|
||||
To get value with given candidates:
|
||||
|
||||
```go
|
||||
v = cfg.Section("").Key("STRING").In("default", []string{"str", "arr", "types"})
|
||||
v = cfg.Section("").Key("FLOAT64").InFloat64(1.1, []float64{1.25, 2.5, 3.75})
|
||||
v = cfg.Section("").Key("INT").InInt(5, []int{10, 20, 30})
|
||||
v = cfg.Section("").Key("INT64").InInt64(10, []int64{10, 20, 30})
|
||||
v = cfg.Section("").Key("UINT").InUint(4, []int{3, 6, 9})
|
||||
v = cfg.Section("").Key("UINT64").InUint64(8, []int64{3, 6, 9})
|
||||
v = cfg.Section("").Key("TIME").InTimeFormat(time.RFC3339, time.Now(), []time.Time{time1, time2, time3})
|
||||
v = cfg.Section("").Key("TIME").InTime(time.Now(), []time.Time{time1, time2, time3}) // RFC3339
|
||||
```
|
||||
|
||||
Default value will be presented if value of key is not in candidates you given, and default value does not need be one of candidates.
|
||||
|
||||
To validate value in a given range:
|
||||
|
||||
```go
|
||||
vals = cfg.Section("").Key("FLOAT64").RangeFloat64(0.0, 1.1, 2.2)
|
||||
vals = cfg.Section("").Key("INT").RangeInt(0, 10, 20)
|
||||
vals = cfg.Section("").Key("INT64").RangeInt64(0, 10, 20)
|
||||
vals = cfg.Section("").Key("UINT").RangeUint(0, 3, 9)
|
||||
vals = cfg.Section("").Key("UINT64").RangeUint64(0, 3, 9)
|
||||
vals = cfg.Section("").Key("TIME").RangeTimeFormat(time.RFC3339, time.Now(), minTime, maxTime)
|
||||
vals = cfg.Section("").Key("TIME").RangeTime(time.Now(), minTime, maxTime) // RFC3339
|
||||
```
|
||||
|
||||
##### Auto-split values into a slice
|
||||
|
||||
To use zero value of type for invalid inputs:
|
||||
|
||||
```go
|
||||
// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
|
||||
// Input: how, 2.2, are, you -> [0.0 2.2 0.0 0.0]
|
||||
vals = cfg.Section("").Key("STRINGS").Strings(",")
|
||||
vals = cfg.Section("").Key("FLOAT64S").Float64s(",")
|
||||
vals = cfg.Section("").Key("INTS").Ints(",")
|
||||
vals = cfg.Section("").Key("INT64S").Int64s(",")
|
||||
vals = cfg.Section("").Key("UINTS").Uints(",")
|
||||
vals = cfg.Section("").Key("UINT64S").Uint64s(",")
|
||||
vals = cfg.Section("").Key("TIMES").Times(",")
|
||||
```
|
||||
|
||||
To exclude invalid values out of result slice:
|
||||
|
||||
```go
|
||||
// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
|
||||
// Input: how, 2.2, are, you -> [2.2]
|
||||
vals = cfg.Section("").Key("FLOAT64S").ValidFloat64s(",")
|
||||
vals = cfg.Section("").Key("INTS").ValidInts(",")
|
||||
vals = cfg.Section("").Key("INT64S").ValidInt64s(",")
|
||||
vals = cfg.Section("").Key("UINTS").ValidUints(",")
|
||||
vals = cfg.Section("").Key("UINT64S").ValidUint64s(",")
|
||||
vals = cfg.Section("").Key("TIMES").ValidTimes(",")
|
||||
```
|
||||
|
||||
Or to return nothing but error when have invalid inputs:
|
||||
|
||||
```go
|
||||
// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
|
||||
// Input: how, 2.2, are, you -> error
|
||||
vals = cfg.Section("").Key("FLOAT64S").StrictFloat64s(",")
|
||||
vals = cfg.Section("").Key("INTS").StrictInts(",")
|
||||
vals = cfg.Section("").Key("INT64S").StrictInt64s(",")
|
||||
vals = cfg.Section("").Key("UINTS").StrictUints(",")
|
||||
vals = cfg.Section("").Key("UINT64S").StrictUint64s(",")
|
||||
vals = cfg.Section("").Key("TIMES").StrictTimes(",")
|
||||
```
|
||||
|
||||
### Save your configuration
|
||||
|
||||
Finally, it's time to save your configuration to somewhere.
|
||||
|
||||
A typical way to save configuration is writing it to a file:
|
||||
|
||||
```go
|
||||
// ...
|
||||
err = cfg.SaveTo("my.ini")
|
||||
err = cfg.SaveToIndent("my.ini", "\t")
|
||||
```
|
||||
|
||||
Another way to save is writing to a `io.Writer` interface:
|
||||
|
||||
```go
|
||||
// ...
|
||||
cfg.WriteTo(writer)
|
||||
cfg.WriteToIndent(writer, "\t")
|
||||
```
|
||||
|
||||
By default, spaces are used to align "=" sign between key and values, to disable that:
|
||||
|
||||
```go
|
||||
ini.PrettyFormat = false
|
||||
```
|
||||
|
||||
## Advanced Usage
|
||||
|
||||
### Recursive Values
|
||||
|
||||
For all value of keys, there is a special syntax `%(<name>)s`, where `<name>` is the key name in same section or default section, and `%(<name>)s` will be replaced by corresponding value(empty string if key not found). You can use this syntax at most 99 level of recursions.
|
||||
|
||||
```ini
|
||||
NAME = ini
|
||||
|
||||
[author]
|
||||
NAME = Unknwon
|
||||
GITHUB = https://github.com/%(NAME)s
|
||||
|
||||
[package]
|
||||
FULL_NAME = github.com/go-ini/%(NAME)s
|
||||
```
|
||||
|
||||
```go
|
||||
cfg.Section("author").Key("GITHUB").String() // https://github.com/Unknwon
|
||||
cfg.Section("package").Key("FULL_NAME").String() // github.com/go-ini/ini
|
||||
```
|
||||
|
||||
### Parent-child Sections
|
||||
|
||||
You can use `.` in section name to indicate parent-child relationship between two or more sections. If the key not found in the child section, library will try again on its parent section until there is no parent section.
|
||||
|
||||
```ini
|
||||
NAME = ini
|
||||
VERSION = v1
|
||||
IMPORT_PATH = gopkg.in/%(NAME)s.%(VERSION)s
|
||||
|
||||
[package]
|
||||
CLONE_URL = https://%(IMPORT_PATH)s
|
||||
|
||||
[package.sub]
|
||||
```
|
||||
|
||||
```go
|
||||
cfg.Section("package.sub").Key("CLONE_URL").String() // https://gopkg.in/ini.v1
|
||||
```
|
||||
|
||||
#### Retrieve parent keys available to a child section
|
||||
|
||||
```go
|
||||
cfg.Section("package.sub").ParentKeys() // ["CLONE_URL"]
|
||||
```
|
||||
|
||||
### Unparseable Sections
|
||||
|
||||
Sometimes, you have sections that do not contain key-value pairs but raw content, to handle such case, you can use `LoadOptions.UnparsableSections`:
|
||||
|
||||
```go
|
||||
cfg, err := LoadSources(LoadOptions{UnparseableSections: []string{"COMMENTS"}}, `[COMMENTS]
|
||||
<1><L.Slide#2> This slide has the fuel listed in the wrong units <e.1>`))
|
||||
|
||||
body := cfg.Section("COMMENTS").Body()
|
||||
|
||||
/* --- start ---
|
||||
<1><L.Slide#2> This slide has the fuel listed in the wrong units <e.1>
|
||||
------ end --- */
|
||||
```
|
||||
|
||||
### Auto-increment Key Names
|
||||
|
||||
If key name is `-` in data source, then it would be seen as special syntax for auto-increment key name start from 1, and every section is independent on counter.
|
||||
|
||||
```ini
|
||||
[features]
|
||||
-: Support read/write comments of keys and sections
|
||||
-: Support auto-increment of key names
|
||||
-: Support load multiple files to overwrite key values
|
||||
```
|
||||
|
||||
```go
|
||||
cfg.Section("features").KeyStrings() // []{"#1", "#2", "#3"}
|
||||
```
|
||||
|
||||
### Map To Struct
|
||||
|
||||
Want more objective way to play with INI? Cool.
|
||||
|
||||
```ini
|
||||
Name = Unknwon
|
||||
age = 21
|
||||
Male = true
|
||||
Born = 1993-01-01T20:17:05Z
|
||||
|
||||
[Note]
|
||||
Content = Hi is a good man!
|
||||
Cities = HangZhou, Boston
|
||||
```
|
||||
|
||||
```go
|
||||
type Note struct {
|
||||
Content string
|
||||
Cities []string
|
||||
}
|
||||
|
||||
type Person struct {
|
||||
Name string
|
||||
Age int `ini:"age"`
|
||||
Male bool
|
||||
Born time.Time
|
||||
Note
|
||||
Created time.Time `ini:"-"`
|
||||
}
|
||||
|
||||
func main() {
|
||||
cfg, err := ini.Load("path/to/ini")
|
||||
// ...
|
||||
p := new(Person)
|
||||
err = cfg.MapTo(p)
|
||||
// ...
|
||||
|
||||
// Things can be simpler.
|
||||
err = ini.MapTo(p, "path/to/ini")
|
||||
// ...
|
||||
|
||||
// Just map a section? Fine.
|
||||
n := new(Note)
|
||||
err = cfg.Section("Note").MapTo(n)
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
Can I have default value for field? Absolutely.
|
||||
|
||||
Assign it before you map to struct. It will keep the value as it is if the key is not presented or got wrong type.
|
||||
|
||||
```go
|
||||
// ...
|
||||
p := &Person{
|
||||
Name: "Joe",
|
||||
}
|
||||
// ...
|
||||
```
|
||||
|
||||
It's really cool, but what's the point if you can't give me my file back from struct?
|
||||
|
||||
### Reflect From Struct
|
||||
|
||||
Why not?
|
||||
|
||||
```go
|
||||
type Embeded struct {
|
||||
Dates []time.Time `delim:"|"`
|
||||
Places []string `ini:"places,omitempty"`
|
||||
None []int `ini:",omitempty"`
|
||||
}
|
||||
|
||||
type Author struct {
|
||||
Name string `ini:"NAME"`
|
||||
Male bool
|
||||
Age int
|
||||
GPA float64
|
||||
NeverMind string `ini:"-"`
|
||||
*Embeded
|
||||
}
|
||||
|
||||
func main() {
|
||||
a := &Author{"Unknwon", true, 21, 2.8, "",
|
||||
&Embeded{
|
||||
[]time.Time{time.Now(), time.Now()},
|
||||
[]string{"HangZhou", "Boston"},
|
||||
[]int{},
|
||||
}}
|
||||
cfg := ini.Empty()
|
||||
err = ini.ReflectFrom(cfg, a)
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
So, what do I get?
|
||||
|
||||
```ini
|
||||
NAME = Unknwon
|
||||
Male = true
|
||||
Age = 21
|
||||
GPA = 2.8
|
||||
|
||||
[Embeded]
|
||||
Dates = 2015-08-07T22:14:22+08:00|2015-08-07T22:14:22+08:00
|
||||
places = HangZhou,Boston
|
||||
```
|
||||
|
||||
#### Name Mapper
|
||||
|
||||
To save your time and make your code cleaner, this library supports [`NameMapper`](https://gowalker.org/gopkg.in/ini.v1#NameMapper) between struct field and actual section and key name.
|
||||
|
||||
There are 2 built-in name mappers:
|
||||
|
||||
- `AllCapsUnderscore`: it converts to format `ALL_CAPS_UNDERSCORE` then match section or key.
|
||||
- `TitleUnderscore`: it converts to format `title_underscore` then match section or key.
|
||||
|
||||
To use them:
|
||||
|
||||
```go
|
||||
type Info struct {
|
||||
PackageName string
|
||||
}
|
||||
|
||||
func main() {
|
||||
err = ini.MapToWithMapper(&Info{}, ini.TitleUnderscore, []byte("package_name=ini"))
|
||||
// ...
|
||||
|
||||
cfg, err := ini.Load([]byte("PACKAGE_NAME=ini"))
|
||||
// ...
|
||||
info := new(Info)
|
||||
cfg.NameMapper = ini.AllCapsUnderscore
|
||||
err = cfg.MapTo(info)
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
Same rules of name mapper apply to `ini.ReflectFromWithMapper` function.
|
||||
|
||||
#### Value Mapper
|
||||
|
||||
To expand values (e.g. from environment variables), you can use the `ValueMapper` to transform values:
|
||||
|
||||
```go
|
||||
type Env struct {
|
||||
Foo string `ini:"foo"`
|
||||
}
|
||||
|
||||
func main() {
|
||||
cfg, err := ini.Load([]byte("[env]\nfoo = ${MY_VAR}\n")
|
||||
cfg.ValueMapper = os.ExpandEnv
|
||||
// ...
|
||||
env := &Env{}
|
||||
err = cfg.Section("env").MapTo(env)
|
||||
}
|
||||
```
|
||||
|
||||
This would set the value of `env.Foo` to the value of the environment variable `MY_VAR`.
|
||||
|
||||
#### Other Notes On Map/Reflect
|
||||
|
||||
Any embedded struct is treated as a section by default, and there is no automatic parent-child relations in map/reflect feature:
|
||||
|
||||
```go
|
||||
type Child struct {
|
||||
Age string
|
||||
}
|
||||
|
||||
type Parent struct {
|
||||
Name string
|
||||
Child
|
||||
}
|
||||
|
||||
type Config struct {
|
||||
City string
|
||||
Parent
|
||||
}
|
||||
```
|
||||
|
||||
Example configuration:
|
||||
|
||||
```ini
|
||||
City = Boston
|
||||
|
||||
[Parent]
|
||||
Name = Unknwon
|
||||
|
||||
[Child]
|
||||
Age = 21
|
||||
```
|
||||
|
||||
What if, yes, I'm paranoid, I want embedded struct to be in the same section. Well, all roads lead to Rome.
|
||||
|
||||
```go
|
||||
type Child struct {
|
||||
Age string
|
||||
}
|
||||
|
||||
type Parent struct {
|
||||
Name string
|
||||
Child `ini:"Parent"`
|
||||
}
|
||||
|
||||
type Config struct {
|
||||
City string
|
||||
Parent
|
||||
}
|
||||
```
|
||||
|
||||
Example configuration:
|
||||
|
||||
```ini
|
||||
City = Boston
|
||||
|
||||
[Parent]
|
||||
Name = Unknwon
|
||||
Age = 21
|
||||
```
|
||||
|
||||
## Getting Help
|
||||
|
||||
- [API Documentation](https://gowalker.org/gopkg.in/ini.v1)
|
||||
- [File An Issue](https://github.com/go-ini/ini/issues/new)
|
||||
|
||||
## FAQs
|
||||
|
||||
### What does `BlockMode` field do?
|
||||
|
||||
By default, library lets you read and write values so we need a locker to make sure your data is safe. But in cases that you are very sure about only reading data through the library, you can set `cfg.BlockMode = false` to speed up read operations about **50-70%** faster.
|
||||
|
||||
### Why another INI library?
|
||||
|
||||
Many people are using my another INI library [goconfig](https://github.com/Unknwon/goconfig), so the reason for this one is I would like to make more Go style code. Also when you set `cfg.BlockMode = false`, this one is about **10-30%** faster.
|
||||
|
||||
To make those changes I have to confirm API broken, so it's safer to keep it in another place and start using `gopkg.in` to version my package at this time.(PS: shorter import path)
|
||||
|
||||
## License
|
||||
|
||||
This project is under Apache v2 License. See the [LICENSE](LICENSE) file for the full license text.
|
||||
|
|
@ -0,0 +1,733 @@
|
|||
本包提供了 Go 语言中读写 INI 文件的功能。
|
||||
|
||||
## 功能特性
|
||||
|
||||
- 支持覆盖加载多个数据源（`[]byte`、文件和 `io.ReadCloser`）
|
||||
- 支持递归读取键值
|
||||
- 支持读取父子分区
|
||||
- 支持读取自增键名
|
||||
- 支持读取多行的键值
|
||||
- 支持大量辅助方法
|
||||
- 支持在读取时直接转换为 Go 语言类型
|
||||
- 支持读取和 **写入** 分区和键的注释
|
||||
- 轻松操作分区、键值和注释
|
||||
- 在保存文件时分区和键值会保持原有的顺序
|
||||
|
||||
## 下载安装
|
||||
|
||||
使用一个特定版本：
|
||||
|
||||
go get gopkg.in/ini.v1
|
||||
|
||||
使用最新版：
|
||||
|
||||
go get github.com/go-ini/ini
|
||||
|
||||
如需更新请添加 `-u` 选项。
|
||||
|
||||
### 测试安装
|
||||
|
||||
如果您想要在自己的机器上运行测试，请使用 `-t` 标记：
|
||||
|
||||
go get -t gopkg.in/ini.v1
|
||||
|
||||
如需更新请添加 `-u` 选项。
|
||||
|
||||
## 开始使用
|
||||
|
||||
### 从数据源加载
|
||||
|
||||
一个 **数据源** 可以是 `[]byte` 类型的原始数据，`string` 类型的文件路径或 `io.ReadCloser`。您可以加载 **任意多个** 数据源。如果您传递其它类型的数据源，则会直接返回错误。
|
||||
|
||||
```go
|
||||
cfg, err := ini.Load([]byte("raw data"), "filename", ioutil.NopCloser(bytes.NewReader([]byte("some other data"))))
|
||||
```
|
||||
|
||||
或者从一个空白的文件开始：
|
||||
|
||||
```go
|
||||
cfg := ini.Empty()
|
||||
```
|
||||
|
||||
当您在一开始无法决定需要加载哪些数据源时，仍可以使用 **Append()** 在需要的时候加载它们。
|
||||
|
||||
```go
|
||||
err := cfg.Append("other file", []byte("other raw data"))
|
||||
```
|
||||
|
||||
当您想要加载一系列文件，但是不能够确定其中哪些文件是不存在的，可以通过调用函数 `LooseLoad` 来忽略它们（`Load` 会因为文件不存在而返回错误）：
|
||||
|
||||
```go
|
||||
cfg, err := ini.LooseLoad("filename", "filename_404")
|
||||
```
|
||||
|
||||
更牛逼的是，当那些之前不存在的文件在重新调用 `Reload` 方法的时候突然出现了，那么它们会被正常加载。
|
||||
|
||||
#### 忽略键名的大小写
|
||||
|
||||
有时候分区和键的名称大小写混合非常烦人，这个时候就可以通过 `InsensitiveLoad` 将所有分区和键名在读取里强制转换为小写：
|
||||
|
||||
```go
|
||||
cfg, err := ini.InsensitiveLoad("filename")
|
||||
//...
|
||||
|
||||
// sec1 和 sec2 指向同一个分区对象
|
||||
sec1, err := cfg.GetSection("Section")
|
||||
sec2, err := cfg.GetSection("SecTIOn")
|
||||
|
||||
// key1 和 key2 指向同一个键对象
|
||||
key1, err := sec1.GetKey("Key")
|
||||
key2, err := sec2.GetKey("KeY")
|
||||
```
|
||||
|
||||
#### 类似 MySQL 配置中的布尔值键
|
||||
|
||||
MySQL 的配置文件中会出现没有具体值的布尔类型的键：
|
||||
|
||||
```ini
|
||||
[mysqld]
|
||||
...
|
||||
skip-host-cache
|
||||
skip-name-resolve
|
||||
```
|
||||
|
||||
默认情况下这被认为是缺失值而无法完成解析，但可以通过高级的加载选项对它们进行处理：
|
||||
|
||||
```go
|
||||
cfg, err := LoadSources(LoadOptions{AllowBooleanKeys: true}, "my.cnf"))
|
||||
```
|
||||
|
||||
这些键的值永远为 `true`，且在保存到文件时也只会输出键名。
|
||||
|
||||
如果您想要通过程序来生成此类键，则可以使用 `NewBooleanKey`：
|
||||
|
||||
```go
|
||||
key, err := sec.NewBooleanKey("skip-host-cache")
|
||||
```
|
||||
|
||||
#### 关于注释
|
||||
|
||||
下述几种情况的内容将被视为注释：
|
||||
|
||||
1. 所有以 `#` 或 `;` 开头的行
|
||||
2. 所有在 `#` 或 `;` 之后的内容
|
||||
3. 分区标签后的文字 (即 `[分区名]` 之后的内容)
|
||||
|
||||
如果你希望使用包含 `#` 或 `;` 的值，请使用 ``` ` ``` 或 ``` """ ``` 进行包覆。
|
||||
|
||||
除此之外，您还可以通过 `LoadOptions` 完全忽略行内注释：
|
||||
|
||||
```go
|
||||
cfg, err := LoadSources(LoadOptions{IgnoreInlineComment: true}, "app.ini"))
|
||||
```
|
||||
|
||||
### 操作分区（Section）
|
||||
|
||||
获取指定分区：
|
||||
|
||||
```go
|
||||
section, err := cfg.GetSection("section name")
|
||||
```
|
||||
|
||||
如果您想要获取默认分区，则可以用空字符串代替分区名：
|
||||
|
||||
```go
|
||||
section, err := cfg.GetSection("")
|
||||
```
|
||||
|
||||
当您非常确定某个分区是存在的，可以使用以下简便方法：
|
||||
|
||||
```go
|
||||
section := cfg.Section("section name")
|
||||
```
|
||||
|
||||
如果不小心判断错了，要获取的分区其实是不存在的，那会发生什么呢？没事的，它会自动创建并返回一个对应的分区对象给您。
|
||||
|
||||
创建一个分区：
|
||||
|
||||
```go
|
||||
err := cfg.NewSection("new section")
|
||||
```
|
||||
|
||||
获取所有分区对象或名称：
|
||||
|
||||
```go
|
||||
sections := cfg.Sections()
|
||||
names := cfg.SectionStrings()
|
||||
```
|
||||
|
||||
### 操作键（Key）
|
||||
|
||||
获取某个分区下的键：
|
||||
|
||||
```go
|
||||
key, err := cfg.Section("").GetKey("key name")
|
||||
```
|
||||
|
||||
和分区一样，您也可以直接获取键而忽略错误处理：
|
||||
|
||||
```go
|
||||
key := cfg.Section("").Key("key name")
|
||||
```
|
||||
|
||||
判断某个键是否存在：
|
||||
|
||||
```go
|
||||
yes := cfg.Section("").HasKey("key name")
|
||||
```
|
||||
|
||||
创建一个新的键：
|
||||
|
||||
```go
|
||||
err := cfg.Section("").NewKey("name", "value")
|
||||
```
|
||||
|
||||
获取分区下的所有键或键名：
|
||||
|
||||
```go
|
||||
keys := cfg.Section("").Keys()
|
||||
names := cfg.Section("").KeyStrings()
|
||||
```
|
||||
|
||||
获取分区下的所有键值对的克隆：
|
||||
|
||||
```go
|
||||
hash := cfg.Section("").KeysHash()
|
||||
```
|
||||
|
||||
### 操作键值（Value）
|
||||
|
||||
获取一个类型为字符串（string）的值：
|
||||
|
||||
```go
|
||||
val := cfg.Section("").Key("key name").String()
|
||||
```
|
||||
|
||||
获取值的同时通过自定义函数进行处理验证：
|
||||
|
||||
```go
|
||||
val := cfg.Section("").Key("key name").Validate(func(in string) string {
|
||||
if len(in) == 0 {
|
||||
return "default"
|
||||
}
|
||||
return in
|
||||
})
|
||||
```
|
||||
|
||||
如果您不需要任何对值的自动转变功能（例如递归读取），可以直接获取原值（这种方式性能最佳）：
|
||||
|
||||
```go
|
||||
val := cfg.Section("").Key("key name").Value()
|
||||
```
|
||||
|
||||
判断某个原值是否存在：
|
||||
|
||||
```go
|
||||
yes := cfg.Section("").HasValue("test value")
|
||||
```
|
||||
|
||||
获取其它类型的值：
|
||||
|
||||
```go
|
||||
// 布尔值的规则：
|
||||
// true 当值为：1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On
|
||||
// false 当值为：0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off
|
||||
v, err = cfg.Section("").Key("BOOL").Bool()
|
||||
v, err = cfg.Section("").Key("FLOAT64").Float64()
|
||||
v, err = cfg.Section("").Key("INT").Int()
|
||||
v, err = cfg.Section("").Key("INT64").Int64()
|
||||
v, err = cfg.Section("").Key("UINT").Uint()
|
||||
v, err = cfg.Section("").Key("UINT64").Uint64()
|
||||
v, err = cfg.Section("").Key("TIME").TimeFormat(time.RFC3339)
|
||||
v, err = cfg.Section("").Key("TIME").Time() // RFC3339
|
||||
|
||||
v = cfg.Section("").Key("BOOL").MustBool()
|
||||
v = cfg.Section("").Key("FLOAT64").MustFloat64()
|
||||
v = cfg.Section("").Key("INT").MustInt()
|
||||
v = cfg.Section("").Key("INT64").MustInt64()
|
||||
v = cfg.Section("").Key("UINT").MustUint()
|
||||
v = cfg.Section("").Key("UINT64").MustUint64()
|
||||
v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339)
|
||||
v = cfg.Section("").Key("TIME").MustTime() // RFC3339
|
||||
|
||||
// 由 Must 开头的方法名允许接收一个相同类型的参数来作为默认值，
|
||||
// 当键不存在或者转换失败时，则会直接返回该默认值。
|
||||
// 但是，MustString 方法必须传递一个默认值。
|
||||
|
||||
v = cfg.Seciont("").Key("String").MustString("default")
|
||||
v = cfg.Section("").Key("BOOL").MustBool(true)
|
||||
v = cfg.Section("").Key("FLOAT64").MustFloat64(1.25)
|
||||
v = cfg.Section("").Key("INT").MustInt(10)
|
||||
v = cfg.Section("").Key("INT64").MustInt64(99)
|
||||
v = cfg.Section("").Key("UINT").MustUint(3)
|
||||
v = cfg.Section("").Key("UINT64").MustUint64(6)
|
||||
v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339, time.Now())
|
||||
v = cfg.Section("").Key("TIME").MustTime(time.Now()) // RFC3339
|
||||
```
|
||||
|
||||
如果我的值有好多行怎么办？
|
||||
|
||||
```ini
|
||||
[advance]
|
||||
ADDRESS = """404 road,
|
||||
NotFound, State, 5000
|
||||
Earth"""
|
||||
```
|
||||
|
||||
嗯哼？小 case！
|
||||
|
||||
```go
|
||||
cfg.Section("advance").Key("ADDRESS").String()
|
||||
|
||||
/* --- start ---
|
||||
404 road,
|
||||
NotFound, State, 5000
|
||||
Earth
|
||||
------ end --- */
|
||||
```
|
||||
|
||||
赞爆了！那要是我属于一行的内容写不下想要写到第二行怎么办？
|
||||
|
||||
```ini
|
||||
[advance]
|
||||
two_lines = how about \
|
||||
continuation lines?
|
||||
lots_of_lines = 1 \
|
||||
2 \
|
||||
3 \
|
||||
4
|
||||
```
|
||||
|
||||
简直是小菜一碟！
|
||||
|
||||
```go
|
||||
cfg.Section("advance").Key("two_lines").String() // how about continuation lines?
|
||||
cfg.Section("advance").Key("lots_of_lines").String() // 1 2 3 4
|
||||
```
|
||||
|
||||
可是我有时候觉得两行连在一起特别没劲，怎么才能不自动连接两行呢？
|
||||
|
||||
```go
|
||||
cfg, err := ini.LoadSources(ini.LoadOptions{
|
||||
IgnoreContinuation: true,
|
||||
}, "filename")
|
||||
```
|
||||
|
||||
哇靠给力啊！
|
||||
|
||||
需要注意的是，值两侧的单引号会被自动剔除：
|
||||
|
||||
```ini
|
||||
foo = "some value" // foo: some value
|
||||
bar = 'some value' // bar: some value
|
||||
```
|
||||
|
||||
这就是全部了？哈哈，当然不是。
|
||||
|
||||
#### 操作键值的辅助方法
|
||||
|
||||
获取键值时设定候选值：
|
||||
|
||||
```go
|
||||
v = cfg.Section("").Key("STRING").In("default", []string{"str", "arr", "types"})
|
||||
v = cfg.Section("").Key("FLOAT64").InFloat64(1.1, []float64{1.25, 2.5, 3.75})
|
||||
v = cfg.Section("").Key("INT").InInt(5, []int{10, 20, 30})
|
||||
v = cfg.Section("").Key("INT64").InInt64(10, []int64{10, 20, 30})
|
||||
v = cfg.Section("").Key("UINT").InUint(4, []int{3, 6, 9})
|
||||
v = cfg.Section("").Key("UINT64").InUint64(8, []int64{3, 6, 9})
|
||||
v = cfg.Section("").Key("TIME").InTimeFormat(time.RFC3339, time.Now(), []time.Time{time1, time2, time3})
|
||||
v = cfg.Section("").Key("TIME").InTime(time.Now(), []time.Time{time1, time2, time3}) // RFC3339
|
||||
```
|
||||
|
||||
如果获取到的值不是候选值的任意一个，则会返回默认值，而默认值不需要是候选值中的一员。
|
||||
|
||||
验证获取的值是否在指定范围内：
|
||||
|
||||
```go
|
||||
vals = cfg.Section("").Key("FLOAT64").RangeFloat64(0.0, 1.1, 2.2)
|
||||
vals = cfg.Section("").Key("INT").RangeInt(0, 10, 20)
|
||||
vals = cfg.Section("").Key("INT64").RangeInt64(0, 10, 20)
|
||||
vals = cfg.Section("").Key("UINT").RangeUint(0, 3, 9)
|
||||
vals = cfg.Section("").Key("UINT64").RangeUint64(0, 3, 9)
|
||||
vals = cfg.Section("").Key("TIME").RangeTimeFormat(time.RFC3339, time.Now(), minTime, maxTime)
|
||||
vals = cfg.Section("").Key("TIME").RangeTime(time.Now(), minTime, maxTime) // RFC3339
|
||||
```
|
||||
|
||||
##### 自动分割键值到切片（slice）
|
||||
|
||||
当存在无效输入时，使用零值代替：
|
||||
|
||||
```go
|
||||
// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
|
||||
// Input: how, 2.2, are, you -> [0.0 2.2 0.0 0.0]
|
||||
vals = cfg.Section("").Key("STRINGS").Strings(",")
|
||||
vals = cfg.Section("").Key("FLOAT64S").Float64s(",")
|
||||
vals = cfg.Section("").Key("INTS").Ints(",")
|
||||
vals = cfg.Section("").Key("INT64S").Int64s(",")
|
||||
vals = cfg.Section("").Key("UINTS").Uints(",")
|
||||
vals = cfg.Section("").Key("UINT64S").Uint64s(",")
|
||||
vals = cfg.Section("").Key("TIMES").Times(",")
|
||||
```
|
||||
|
||||
从结果切片中剔除无效输入：
|
||||
|
||||
```go
|
||||
// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
|
||||
// Input: how, 2.2, are, you -> [2.2]
|
||||
vals = cfg.Section("").Key("FLOAT64S").ValidFloat64s(",")
|
||||
vals = cfg.Section("").Key("INTS").ValidInts(",")
|
||||
vals = cfg.Section("").Key("INT64S").ValidInt64s(",")
|
||||
vals = cfg.Section("").Key("UINTS").ValidUints(",")
|
||||
vals = cfg.Section("").Key("UINT64S").ValidUint64s(",")
|
||||
vals = cfg.Section("").Key("TIMES").ValidTimes(",")
|
||||
```
|
||||
|
||||
当存在无效输入时，直接返回错误：
|
||||
|
||||
```go
|
||||
// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
|
||||
// Input: how, 2.2, are, you -> error
|
||||
vals = cfg.Section("").Key("FLOAT64S").StrictFloat64s(",")
|
||||
vals = cfg.Section("").Key("INTS").StrictInts(",")
|
||||
vals = cfg.Section("").Key("INT64S").StrictInt64s(",")
|
||||
vals = cfg.Section("").Key("UINTS").StrictUints(",")
|
||||
vals = cfg.Section("").Key("UINT64S").StrictUint64s(",")
|
||||
vals = cfg.Section("").Key("TIMES").StrictTimes(",")
|
||||
```
|
||||
|
||||
### 保存配置
|
||||
|
||||
终于到了这个时刻，是时候保存一下配置了。
|
||||
|
||||
比较原始的做法是输出配置到某个文件：
|
||||
|
||||
```go
|
||||
// ...
|
||||
err = cfg.SaveTo("my.ini")
|
||||
err = cfg.SaveToIndent("my.ini", "\t")
|
||||
```
|
||||
|
||||
另一个比较高级的做法是写入到任何实现 `io.Writer` 接口的对象中：
|
||||
|
||||
```go
|
||||
// ...
|
||||
cfg.WriteTo(writer)
|
||||
cfg.WriteToIndent(writer, "\t")
|
||||
```
|
||||
|
||||
默认情况下，空格将被用于对齐键值之间的等号以美化输出结果，以下代码可以禁用该功能：
|
||||
|
||||
```go
|
||||
ini.PrettyFormat = false
|
||||
```
|
||||
|
||||
## 高级用法
|
||||
|
||||
### 递归读取键值
|
||||
|
||||
在获取所有键值的过程中，特殊语法 `%(<name>)s` 会被应用，其中 `<name>` 可以是相同分区或者默认分区下的键名。字符串 `%(<name>)s` 会被相应的键值所替代，如果指定的键不存在，则会用空字符串替代。您可以最多使用 99 层的递归嵌套。
|
||||
|
||||
```ini
|
||||
NAME = ini
|
||||
|
||||
[author]
|
||||
NAME = Unknwon
|
||||
GITHUB = https://github.com/%(NAME)s
|
||||
|
||||
[package]
|
||||
FULL_NAME = github.com/go-ini/%(NAME)s
|
||||
```
|
||||
|
||||
```go
|
||||
cfg.Section("author").Key("GITHUB").String() // https://github.com/Unknwon
|
||||
cfg.Section("package").Key("FULL_NAME").String() // github.com/go-ini/ini
|
||||
```
|
||||
|
||||
### 读取父子分区
|
||||
|
||||
您可以在分区名称中使用 `.` 来表示两个或多个分区之间的父子关系。如果某个键在子分区中不存在，则会去它的父分区中再次寻找，直到没有父分区为止。
|
||||
|
||||
```ini
|
||||
NAME = ini
|
||||
VERSION = v1
|
||||
IMPORT_PATH = gopkg.in/%(NAME)s.%(VERSION)s
|
||||
|
||||
[package]
|
||||
CLONE_URL = https://%(IMPORT_PATH)s
|
||||
|
||||
[package.sub]
|
||||
```
|
||||
|
||||
```go
|
||||
cfg.Section("package.sub").Key("CLONE_URL").String() // https://gopkg.in/ini.v1
|
||||
```
|
||||
|
||||
#### 获取上级父分区下的所有键名
|
||||
|
||||
```go
|
||||
cfg.Section("package.sub").ParentKeys() // ["CLONE_URL"]
|
||||
```
|
||||
|
||||
### 无法解析的分区
|
||||
|
||||
如果遇到一些比较特殊的分区，它们不包含常见的键值对，而是没有固定格式的纯文本，则可以使用 `LoadOptions.UnparsableSections` 进行处理：
|
||||
|
||||
```go
|
||||
cfg, err := LoadSources(LoadOptions{UnparseableSections: []string{"COMMENTS"}}, `[COMMENTS]
|
||||
<1><L.Slide#2> This slide has the fuel listed in the wrong units <e.1>`))
|
||||
|
||||
body := cfg.Section("COMMENTS").Body()
|
||||
|
||||
/* --- start ---
|
||||
<1><L.Slide#2> This slide has the fuel listed in the wrong units <e.1>
|
||||
------ end --- */
|
||||
```
|
||||
|
||||
### 读取自增键名
|
||||
|
||||
如果数据源中的键名为 `-`，则认为该键使用了自增键名的特殊语法。计数器从 1 开始，并且分区之间是相互独立的。
|
||||
|
||||
```ini
|
||||
[features]
|
||||
-: Support read/write comments of keys and sections
|
||||
-: Support auto-increment of key names
|
||||
-: Support load multiple files to overwrite key values
|
||||
```
|
||||
|
||||
```go
|
||||
cfg.Section("features").KeyStrings() // []{"#1", "#2", "#3"}
|
||||
```
|
||||
|
||||
### 映射到结构
|
||||
|
||||
想要使用更加面向对象的方式玩转 INI 吗？好主意。
|
||||
|
||||
```ini
|
||||
Name = Unknwon
|
||||
age = 21
|
||||
Male = true
|
||||
Born = 1993-01-01T20:17:05Z
|
||||
|
||||
[Note]
|
||||
Content = Hi is a good man!
|
||||
Cities = HangZhou, Boston
|
||||
```
|
||||
|
||||
```go
|
||||
type Note struct {
|
||||
Content string
|
||||
Cities []string
|
||||
}
|
||||
|
||||
type Person struct {
|
||||
Name string
|
||||
Age int `ini:"age"`
|
||||
Male bool
|
||||
Born time.Time
|
||||
Note
|
||||
Created time.Time `ini:"-"`
|
||||
}
|
||||
|
||||
func main() {
|
||||
cfg, err := ini.Load("path/to/ini")
|
||||
// ...
|
||||
p := new(Person)
|
||||
err = cfg.MapTo(p)
|
||||
// ...
|
||||
|
||||
// 一切竟可以如此的简单。
|
||||
err = ini.MapTo(p, "path/to/ini")
|
||||
// ...
|
||||
|
||||
// 嗯哼？只需要映射一个分区吗？
|
||||
n := new(Note)
|
||||
err = cfg.Section("Note").MapTo(n)
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
结构的字段怎么设置默认值呢？很简单，只要在映射之前对指定字段进行赋值就可以了。如果键未找到或者类型错误，该值不会发生改变。
|
||||
|
||||
```go
|
||||
// ...
|
||||
p := &Person{
|
||||
Name: "Joe",
|
||||
}
|
||||
// ...
|
||||
```
|
||||
|
||||
这样玩 INI 真的好酷啊！然而，如果不能还给我原来的配置文件，有什么卵用？
|
||||
|
||||
### 从结构反射
|
||||
|
||||
可是，我有说不能吗？
|
||||
|
||||
```go
|
||||
type Embeded struct {
|
||||
Dates []time.Time `delim:"|"`
|
||||
Places []string `ini:"places,omitempty"`
|
||||
None []int `ini:",omitempty"`
|
||||
}
|
||||
|
||||
type Author struct {
|
||||
Name string `ini:"NAME"`
|
||||
Male bool
|
||||
Age int
|
||||
GPA float64
|
||||
NeverMind string `ini:"-"`
|
||||
*Embeded
|
||||
}
|
||||
|
||||
func main() {
|
||||
a := &Author{"Unknwon", true, 21, 2.8, "",
|
||||
&Embeded{
|
||||
[]time.Time{time.Now(), time.Now()},
|
||||
[]string{"HangZhou", "Boston"},
|
||||
[]int{},
|
||||
}}
|
||||
cfg := ini.Empty()
|
||||
err = ini.ReflectFrom(cfg, a)
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
瞧瞧，奇迹发生了。
|
||||
|
||||
```ini
|
||||
NAME = Unknwon
|
||||
Male = true
|
||||
Age = 21
|
||||
GPA = 2.8
|
||||
|
||||
[Embeded]
|
||||
Dates = 2015-08-07T22:14:22+08:00|2015-08-07T22:14:22+08:00
|
||||
places = HangZhou,Boston
|
||||
```
|
||||
|
||||
#### 名称映射器（Name Mapper）
|
||||
|
||||
为了节省您的时间并简化代码，本库支持类型为 [`NameMapper`](https://gowalker.org/gopkg.in/ini.v1#NameMapper) 的名称映射器，该映射器负责结构字段名与分区名和键名之间的映射。
|
||||
|
||||
目前有 2 款内置的映射器：
|
||||
|
||||
- `AllCapsUnderscore`：该映射器将字段名转换至格式 `ALL_CAPS_UNDERSCORE` 后再去匹配分区名和键名。
|
||||
- `TitleUnderscore`：该映射器将字段名转换至格式 `title_underscore` 后再去匹配分区名和键名。
|
||||
|
||||
使用方法：
|
||||
|
||||
```go
|
||||
type Info struct{
|
||||
PackageName string
|
||||
}
|
||||
|
||||
func main() {
|
||||
err = ini.MapToWithMapper(&Info{}, ini.TitleUnderscore, []byte("package_name=ini"))
|
||||
// ...
|
||||
|
||||
cfg, err := ini.Load([]byte("PACKAGE_NAME=ini"))
|
||||
// ...
|
||||
info := new(Info)
|
||||
cfg.NameMapper = ini.AllCapsUnderscore
|
||||
err = cfg.MapTo(info)
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
使用函数 `ini.ReflectFromWithMapper` 时也可应用相同的规则。
|
||||
|
||||
#### 值映射器（Value Mapper）
|
||||
|
||||
值映射器允许使用一个自定义函数自动展开值的具体内容，例如：运行时获取环境变量：
|
||||
|
||||
```go
|
||||
type Env struct {
|
||||
Foo string `ini:"foo"`
|
||||
}
|
||||
|
||||
func main() {
|
||||
cfg, err := ini.Load([]byte("[env]\nfoo = ${MY_VAR}\n")
|
||||
cfg.ValueMapper = os.ExpandEnv
|
||||
// ...
|
||||
env := &Env{}
|
||||
err = cfg.Section("env").MapTo(env)
|
||||
}
|
||||
```
|
||||
|
||||
本例中，`env.Foo` 将会是运行时所获取到环境变量 `MY_VAR` 的值。
|
||||
|
||||
#### 映射/反射的其它说明
|
||||
|
||||
任何嵌入的结构都会被默认认作一个不同的分区，并且不会自动产生所谓的父子分区关联：
|
||||
|
||||
```go
|
||||
type Child struct {
|
||||
Age string
|
||||
}
|
||||
|
||||
type Parent struct {
|
||||
Name string
|
||||
Child
|
||||
}
|
||||
|
||||
type Config struct {
|
||||
City string
|
||||
Parent
|
||||
}
|
||||
```
|
||||
|
||||
示例配置文件：
|
||||
|
||||
```ini
|
||||
City = Boston
|
||||
|
||||
[Parent]
|
||||
Name = Unknwon
|
||||
|
||||
[Child]
|
||||
Age = 21
|
||||
```
|
||||
|
||||
很好，但是，我就是要嵌入结构也在同一个分区。好吧，你爹是李刚！
|
||||
|
||||
```go
|
||||
type Child struct {
|
||||
Age string
|
||||
}
|
||||
|
||||
type Parent struct {
|
||||
Name string
|
||||
Child `ini:"Parent"`
|
||||
}
|
||||
|
||||
type Config struct {
|
||||
City string
|
||||
Parent
|
||||
}
|
||||
```
|
||||
|
||||
示例配置文件：
|
||||
|
||||
```ini
|
||||
City = Boston
|
||||
|
||||
[Parent]
|
||||
Name = Unknwon
|
||||
Age = 21
|
||||
```
|
||||
|
||||
## 获取帮助
|
||||
|
||||
- [API 文档](https://gowalker.org/gopkg.in/ini.v1)
|
||||
- [创建工单](https://github.com/go-ini/ini/issues/new)
|
||||
|
||||
## 常见问题
|
||||
|
||||
### 字段 `BlockMode` 是什么？
|
||||
|
||||
默认情况下，本库会在您进行读写操作时采用锁机制来确保数据时间。但在某些情况下，您非常确定只进行读操作。此时，您可以通过设置 `cfg.BlockMode = false` 来将读操作提升大约 **50-70%** 的性能。
|
||||
|
||||
### 为什么要写另一个 INI 解析库？
|
||||
|
||||
许多人都在使用我的 [goconfig](https://github.com/Unknwon/goconfig) 来完成对 INI 文件的操作，但我希望使用更加 Go 风格的代码。并且当您设置 `cfg.BlockMode = false` 时，会有大约 **10-30%** 的性能提升。
|
||||
|
||||
为了做出这些改变，我必须对 API 进行破坏，所以新开一个仓库是最安全的做法。除此之外，本库直接使用 `gopkg.in` 来进行版本化发布。（其实真相是导入路径更短了）
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
// Copyright 2016 Unknwon
|
||||
//
|
||||
// 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
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS, 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.
|
||||
|
||||
package ini
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
)
|
||||
|
||||
type ErrDelimiterNotFound struct {
|
||||
Line string
|
||||
}
|
||||
|
||||
func IsErrDelimiterNotFound(err error) bool {
|
||||
_, ok := err.(ErrDelimiterNotFound)
|
||||
return ok
|
||||
}
|
||||
|
||||
func (err ErrDelimiterNotFound) Error() string {
|
||||
return fmt.Sprintf("key-value delimiter not found: %s", err.Line)
|
||||
}
|
||||
|
|
@ -0,0 +1,556 @@
|
|||
// Copyright 2014 Unknwon
|
||||
//
|
||||
// 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
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS, 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.
|
||||
|
||||
// Package ini provides INI file read and write functionality in Go.
|
||||
package ini
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"regexp"
|
||||
"runtime"
|
||||
"strings"
|
||||
"sync"
|
||||
)
|
||||
|
||||
const (
|
||||
// Name for default section. You can use this constant or the string literal.
|
||||
// In most of cases, an empty string is all you need to access the section.
|
||||
DEFAULT_SECTION = "DEFAULT"
|
||||
|
||||
// Maximum allowed depth when recursively substituing variable names.
|
||||
_DEPTH_VALUES = 99
|
||||
_VERSION = "1.28.2"
|
||||
)
|
||||
|
||||
// Version returns current package version literal.
|
||||
func Version() string {
|
||||
return _VERSION
|
||||
}
|
||||
|
||||
var (
|
||||
// Delimiter to determine or compose a new line.
|
||||
// This variable will be changed to "\r\n" automatically on Windows
|
||||
// at package init time.
|
||||
LineBreak = "\n"
|
||||
|
||||
// Variable regexp pattern: %(variable)s
|
||||
varPattern = regexp.MustCompile(`%\(([^\)]+)\)s`)
|
||||
|
||||
// Indicate whether to align "=" sign with spaces to produce pretty output
|
||||
// or reduce all possible spaces for compact format.
|
||||
PrettyFormat = true
|
||||
|
||||
// Explicitly write DEFAULT section header
|
||||
DefaultHeader = false
|
||||
|
||||
// Indicate whether to put a line between sections
|
||||
PrettySection = true
|
||||
)
|
||||
|
||||
func init() {
|
||||
if runtime.GOOS == "windows" {
|
||||
LineBreak = "\r\n"
|
||||
}
|
||||
}
|
||||
|
||||
func inSlice(str string, s []string) bool {
|
||||
for _, v := range s {
|
||||
if str == v {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// dataSource is an interface that returns object which can be read and closed.
|
||||
type dataSource interface {
|
||||
ReadCloser() (io.ReadCloser, error)
|
||||
}
|
||||
|
||||
// sourceFile represents an object that contains content on the local file system.
|
||||
type sourceFile struct {
|
||||
name string
|
||||
}
|
||||
|
||||
func (s sourceFile) ReadCloser() (_ io.ReadCloser, err error) {
|
||||
return os.Open(s.name)
|
||||
}
|
||||
|
||||
type bytesReadCloser struct {
|
||||
reader io.Reader
|
||||
}
|
||||
|
||||
func (rc *bytesReadCloser) Read(p []byte) (n int, err error) {
|
||||
return rc.reader.Read(p)
|
||||
}
|
||||
|
||||
func (rc *bytesReadCloser) Close() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// sourceData represents an object that contains content in memory.
|
||||
type sourceData struct {
|
||||
data []byte
|
||||
}
|
||||
|
||||
func (s *sourceData) ReadCloser() (io.ReadCloser, error) {
|
||||
return ioutil.NopCloser(bytes.NewReader(s.data)), nil
|
||||
}
|
||||
|
||||
// sourceReadCloser represents an input stream with Close method.
|
||||
type sourceReadCloser struct {
|
||||
reader io.ReadCloser
|
||||
}
|
||||
|
||||
func (s *sourceReadCloser) ReadCloser() (io.ReadCloser, error) {
|
||||
return s.reader, nil
|
||||
}
|
||||
|
||||
// File represents a combination of a or more INI file(s) in memory.
|
||||
type File struct {
|
||||
// Should make things safe, but sometimes doesn't matter.
|
||||
BlockMode bool
|
||||
// Make sure data is safe in multiple goroutines.
|
||||
lock sync.RWMutex
|
||||
|
||||
// Allow combination of multiple data sources.
|
||||
dataSources []dataSource
|
||||
// Actual data is stored here.
|
||||
sections map[string]*Section
|
||||
|
||||
// To keep data in order.
|
||||
sectionList []string
|
||||
|
||||
options LoadOptions
|
||||
|
||||
NameMapper
|
||||
ValueMapper
|
||||
}
|
||||
|
||||
// newFile initializes File object with given data sources.
|
||||
func newFile(dataSources []dataSource, opts LoadOptions) *File {
|
||||
return &File{
|
||||
BlockMode: true,
|
||||
dataSources: dataSources,
|
||||
sections: make(map[string]*Section),
|
||||
sectionList: make([]string, 0, 10),
|
||||
options: opts,
|
||||
}
|
||||
}
|
||||
|
||||
func parseDataSource(source interface{}) (dataSource, error) {
|
||||
switch s := source.(type) {
|
||||
case string:
|
||||
return sourceFile{s}, nil
|
||||
case []byte:
|
||||
return &sourceData{s}, nil
|
||||
case io.ReadCloser:
|
||||
return &sourceReadCloser{s}, nil
|
||||
default:
|
||||
return nil, fmt.Errorf("error parsing data source: unknown type '%s'", s)
|
||||
}
|
||||
}
|
||||
|
||||
type LoadOptions struct {
|
||||
// Loose indicates whether the parser should ignore nonexistent files or return error.
|
||||
Loose bool
|
||||
// Insensitive indicates whether the parser forces all section and key names to lowercase.
|
||||
Insensitive bool
|
||||
// IgnoreContinuation indicates whether to ignore continuation lines while parsing.
|
||||
IgnoreContinuation bool
|
||||
// IgnoreInlineComment indicates whether to ignore comments at the end of value and treat it as part of value.
|
||||
IgnoreInlineComment bool
|
||||
// AllowBooleanKeys indicates whether to allow boolean type keys or treat as value is missing.
|
||||
// This type of keys are mostly used in my.cnf.
|
||||
AllowBooleanKeys bool
|
||||
// AllowShadows indicates whether to keep track of keys with same name under same section.
|
||||
AllowShadows bool
|
||||
// Some INI formats allow group blocks that store a block of raw content that doesn't otherwise
|
||||
// conform to key/value pairs. Specify the names of those blocks here.
|
||||
UnparseableSections []string
|
||||
}
|
||||
|
||||
func LoadSources(opts LoadOptions, source interface{}, others ...interface{}) (_ *File, err error) {
|
||||
sources := make([]dataSource, len(others)+1)
|
||||
sources[0], err = parseDataSource(source)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
for i := range others {
|
||||
sources[i+1], err = parseDataSource(others[i])
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
f := newFile(sources, opts)
|
||||
if err = f.Reload(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return f, nil
|
||||
}
|
||||
|
||||
// Load loads and parses from INI data sources.
|
||||
// Arguments can be mixed of file name with string type, or raw data in []byte.
|
||||
// It will return error if list contains nonexistent files.
|
||||
func Load(source interface{}, others ...interface{}) (*File, error) {
|
||||
return LoadSources(LoadOptions{}, source, others...)
|
||||
}
|
||||
|
||||
// LooseLoad has exactly same functionality as Load function
|
||||
// except it ignores nonexistent files instead of returning error.
|
||||
func LooseLoad(source interface{}, others ...interface{}) (*File, error) {
|
||||
return LoadSources(LoadOptions{Loose: true}, source, others...)
|
||||
}
|
||||
|
||||
// InsensitiveLoad has exactly same functionality as Load function
|
||||
// except it forces all section and key names to be lowercased.
|
||||
func InsensitiveLoad(source interface{}, others ...interface{}) (*File, error) {
|
||||
return LoadSources(LoadOptions{Insensitive: true}, source, others...)
|
||||
}
|
||||
|
||||
// InsensitiveLoad has exactly same functionality as Load function
|
||||
// except it allows have shadow keys.
|
||||
func ShadowLoad(source interface{}, others ...interface{}) (*File, error) {
|
||||
return LoadSources(LoadOptions{AllowShadows: true}, source, others...)
|
||||
}
|
||||
|
||||
// Empty returns an empty file object.
|
||||
func Empty() *File {
|
||||
// Ignore error here, we sure our data is good.
|
||||
f, _ := Load([]byte(""))
|
||||
return f
|
||||
}
|
||||
|
||||
// NewSection creates a new section.
|
||||
func (f *File) NewSection(name string) (*Section, error) {
|
||||
if len(name) == 0 {
|
||||
return nil, errors.New("error creating new section: empty section name")
|
||||
} else if f.options.Insensitive && name != DEFAULT_SECTION {
|
||||
name = strings.ToLower(name)
|
||||
}
|
||||
|
||||
if f.BlockMode {
|
||||
f.lock.Lock()
|
||||
defer f.lock.Unlock()
|
||||
}
|
||||
|
||||
if inSlice(name, f.sectionList) {
|
||||
return f.sections[name], nil
|
||||
}
|
||||
|
||||
f.sectionList = append(f.sectionList, name)
|
||||
f.sections[name] = newSection(f, name)
|
||||
return f.sections[name], nil
|
||||
}
|
||||
|
||||
// NewRawSection creates a new section with an unparseable body.
|
||||
func (f *File) NewRawSection(name, body string) (*Section, error) {
|
||||
section, err := f.NewSection(name)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
section.isRawSection = true
|
||||
section.rawBody = body
|
||||
return section, nil
|
||||
}
|
||||
|
||||
// NewSections creates a list of sections.
|
||||
func (f *File) NewSections(names ...string) (err error) {
|
||||
for _, name := range names {
|
||||
if _, err = f.NewSection(name); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetSection returns section by given name.
|
||||
func (f *File) GetSection(name string) (*Section, error) {
|
||||
if len(name) == 0 {
|
||||
name = DEFAULT_SECTION
|
||||
} else if f.options.Insensitive {
|
||||
name = strings.ToLower(name)
|
||||
}
|
||||
|
||||
if f.BlockMode {
|
||||
f.lock.RLock()
|
||||
defer f.lock.RUnlock()
|
||||
}
|
||||
|
||||
sec := f.sections[name]
|
||||
if sec == nil {
|
||||
return nil, fmt.Errorf("section '%s' does not exist", name)
|
||||
}
|
||||
return sec, nil
|
||||
}
|
||||
|
||||
// Section assumes named section exists and returns a zero-value when not.
|
||||
func (f *File) Section(name string) *Section {
|
||||
sec, err := f.GetSection(name)
|
||||
if err != nil {
|
||||
// Note: It's OK here because the only possible error is empty section name,
|
||||
// but if it's empty, this piece of code won't be executed.
|
||||
sec, _ = f.NewSection(name)
|
||||
return sec
|
||||
}
|
||||
return sec
|
||||
}
|
||||
|
||||
// Section returns list of Section.
|
||||
func (f *File) Sections() []*Section {
|
||||
sections := make([]*Section, len(f.sectionList))
|
||||
for i := range f.sectionList {
|
||||
sections[i] = f.Section(f.sectionList[i])
|
||||
}
|
||||
return sections
|
||||
}
|
||||
|
||||
// ChildSections returns a list of child sections of given section name.
|
||||
func (f *File) ChildSections(name string) []*Section {
|
||||
return f.Section(name).ChildSections()
|
||||
}
|
||||
|
||||
// SectionStrings returns list of section names.
|
||||
func (f *File) SectionStrings() []string {
|
||||
list := make([]string, len(f.sectionList))
|
||||
copy(list, f.sectionList)
|
||||
return list
|
||||
}
|
||||
|
||||
// DeleteSection deletes a section.
|
||||
func (f *File) DeleteSection(name string) {
|
||||
if f.BlockMode {
|
||||
f.lock.Lock()
|
||||
defer f.lock.Unlock()
|
||||
}
|
||||
|
||||
if len(name) == 0 {
|
||||
name = DEFAULT_SECTION
|
||||
}
|
||||
|
||||
for i, s := range f.sectionList {
|
||||
if s == name {
|
||||
f.sectionList = append(f.sectionList[:i], f.sectionList[i+1:]...)
|
||||
delete(f.sections, name)
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (f *File) reload(s dataSource) error {
|
||||
r, err := s.ReadCloser()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer r.Close()
|
||||
|
||||
return f.parse(r)
|
||||
}
|
||||
|
||||
// Reload reloads and parses all data sources.
|
||||
func (f *File) Reload() (err error) {
|
||||
for _, s := range f.dataSources {
|
||||
if err = f.reload(s); err != nil {
|
||||
// In loose mode, we create an empty default section for nonexistent files.
|
||||
if os.IsNotExist(err) && f.options.Loose {
|
||||
f.parse(bytes.NewBuffer(nil))
|
||||
continue
|
||||
}
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Append appends one or more data sources and reloads automatically.
|
||||
func (f *File) Append(source interface{}, others ...interface{}) error {
|
||||
ds, err := parseDataSource(source)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
f.dataSources = append(f.dataSources, ds)
|
||||
for _, s := range others {
|
||||
ds, err = parseDataSource(s)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
f.dataSources = append(f.dataSources, ds)
|
||||
}
|
||||
return f.Reload()
|
||||
}
|
||||
|
||||
func (f *File) writeToBuffer(indent string) (*bytes.Buffer, error) {
|
||||
equalSign := "="
|
||||
if PrettyFormat {
|
||||
equalSign = " = "
|
||||
}
|
||||
|
||||
// Use buffer to make sure target is safe until finish encoding.
|
||||
buf := bytes.NewBuffer(nil)
|
||||
for i, sname := range f.sectionList {
|
||||
sec := f.Section(sname)
|
||||
if len(sec.Comment) > 0 {
|
||||
if sec.Comment[0] != '#' && sec.Comment[0] != ';' {
|
||||
sec.Comment = "; " + sec.Comment
|
||||
}
|
||||
if _, err := buf.WriteString(sec.Comment + LineBreak); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
if i > 0 || DefaultHeader {
|
||||
if _, err := buf.WriteString("[" + sname + "]" + LineBreak); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
} else {
|
||||
// Write nothing if default section is empty
|
||||
if len(sec.keyList) == 0 {
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
if sec.isRawSection {
|
||||
if _, err := buf.WriteString(sec.rawBody); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
// Count and generate alignment length and buffer spaces using the
|
||||
// longest key. Keys may be modifed if they contain certain characters so
|
||||
// we need to take that into account in our calculation.
|
||||
alignLength := 0
|
||||
if PrettyFormat {
|
||||
for _, kname := range sec.keyList {
|
||||
keyLength := len(kname)
|
||||
// First case will surround key by ` and second by """
|
||||
if strings.ContainsAny(kname, "\"=:") {
|
||||
keyLength += 2
|
||||
} else if strings.Contains(kname, "`") {
|
||||
keyLength += 6
|
||||
}
|
||||
|
||||
if keyLength > alignLength {
|
||||
alignLength = keyLength
|
||||
}
|
||||
}
|
||||
}
|
||||
alignSpaces := bytes.Repeat([]byte(" "), alignLength)
|
||||
|
||||
KEY_LIST:
|
||||
for _, kname := range sec.keyList {
|
||||
key := sec.Key(kname)
|
||||
if len(key.Comment) > 0 {
|
||||
if len(indent) > 0 && sname != DEFAULT_SECTION {
|
||||
buf.WriteString(indent)
|
||||
}
|
||||
if key.Comment[0] != '#' && key.Comment[0] != ';' {
|
||||
key.Comment = "; " + key.Comment
|
||||
}
|
||||
if _, err := buf.WriteString(key.Comment + LineBreak); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
if len(indent) > 0 && sname != DEFAULT_SECTION {
|
||||
buf.WriteString(indent)
|
||||
}
|
||||
|
||||
switch {
|
||||
case key.isAutoIncrement:
|
||||
kname = "-"
|
||||
case strings.ContainsAny(kname, "\"=:"):
|
||||
kname = "`" + kname + "`"
|
||||
case strings.Contains(kname, "`"):
|
||||
kname = `"""` + kname + `"""`
|
||||
}
|
||||
|
||||
for _, val := range key.ValueWithShadows() {
|
||||
if _, err := buf.WriteString(kname); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if key.isBooleanType {
|
||||
if kname != sec.keyList[len(sec.keyList)-1] {
|
||||
buf.WriteString(LineBreak)
|
||||
}
|
||||
continue KEY_LIST
|
||||
}
|
||||
|
||||
// Write out alignment spaces before "=" sign
|
||||
if PrettyFormat {
|
||||
buf.Write(alignSpaces[:alignLength-len(kname)])
|
||||
}
|
||||
|
||||
// In case key value contains "\n", "`", "\"", "#" or ";"
|
||||
if strings.ContainsAny(val, "\n`") {
|
||||
val = `"""` + val + `"""`
|
||||
} else if !f.options.IgnoreInlineComment && strings.ContainsAny(val, "#;") {
|
||||
val = "`" + val + "`"
|
||||
}
|
||||
if _, err := buf.WriteString(equalSign + val + LineBreak); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if PrettySection {
|
||||
// Put a line between sections
|
||||
if _, err := buf.WriteString(LineBreak); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return buf, nil
|
||||
}
|
||||
|
||||
// WriteToIndent writes content into io.Writer with given indention.
|
||||
// If PrettyFormat has been set to be true,
|
||||
// it will align "=" sign with spaces under each section.
|
||||
func (f *File) WriteToIndent(w io.Writer, indent string) (int64, error) {
|
||||
buf, err := f.writeToBuffer(indent)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return buf.WriteTo(w)
|
||||
}
|
||||
|
||||
// WriteTo writes file content into io.Writer.
|
||||
func (f *File) WriteTo(w io.Writer) (int64, error) {
|
||||
return f.WriteToIndent(w, "")
|
||||
}
|
||||
|
||||
// SaveToIndent writes content to file system with given value indention.
|
||||
func (f *File) SaveToIndent(filename, indent string) error {
|
||||
// Note: Because we are truncating with os.Create,
|
||||
// so it's safer to save to a temporary file location and rename afte done.
|
||||
buf, err := f.writeToBuffer(indent)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return ioutil.WriteFile(filename, buf.Bytes(), 0666)
|
||||
}
|
||||
|
||||
// SaveTo writes content to file system.
|
||||
func (f *File) SaveTo(filename string) error {
|
||||
return f.SaveToIndent(filename, "")
|
||||
}
|
||||
|
|
@ -0,0 +1,699 @@
|
|||
// Copyright 2014 Unknwon
|
||||
//
|
||||
// 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
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS, 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.
|
||||
|
||||
package ini
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
// Key represents a key under a section.
|
||||
type Key struct {
|
||||
s *Section
|
||||
name string
|
||||
value string
|
||||
isAutoIncrement bool
|
||||
isBooleanType bool
|
||||
|
||||
isShadow bool
|
||||
shadows []*Key
|
||||
|
||||
Comment string
|
||||
}
|
||||
|
||||
// newKey simply return a key object with given values.
|
||||
func newKey(s *Section, name, val string) *Key {
|
||||
return &Key{
|
||||
s: s,
|
||||
name: name,
|
||||
value: val,
|
||||
}
|
||||
}
|
||||
|
||||
func (k *Key) addShadow(val string) error {
|
||||
if k.isShadow {
|
||||
return errors.New("cannot add shadow to another shadow key")
|
||||
} else if k.isAutoIncrement || k.isBooleanType {
|
||||
return errors.New("cannot add shadow to auto-increment or boolean key")
|
||||
}
|
||||
|
||||
shadow := newKey(k.s, k.name, val)
|
||||
shadow.isShadow = true
|
||||
k.shadows = append(k.shadows, shadow)
|
||||
return nil
|
||||
}
|
||||
|
||||
// AddShadow adds a new shadow key to itself.
|
||||
func (k *Key) AddShadow(val string) error {
|
||||
if !k.s.f.options.AllowShadows {
|
||||
return errors.New("shadow key is not allowed")
|
||||
}
|
||||
return k.addShadow(val)
|
||||
}
|
||||
|
||||
// ValueMapper represents a mapping function for values, e.g. os.ExpandEnv
|
||||
type ValueMapper func(string) string
|
||||
|
||||
// Name returns name of key.
|
||||
func (k *Key) Name() string {
|
||||
return k.name
|
||||
}
|
||||
|
||||
// Value returns raw value of key for performance purpose.
|
||||
func (k *Key) Value() string {
|
||||
return k.value
|
||||
}
|
||||
|
||||
// ValueWithShadows returns raw values of key and its shadows if any.
|
||||
func (k *Key) ValueWithShadows() []string {
|
||||
if len(k.shadows) == 0 {
|
||||
return []string{k.value}
|
||||
}
|
||||
vals := make([]string, len(k.shadows)+1)
|
||||
vals[0] = k.value
|
||||
for i := range k.shadows {
|
||||
vals[i+1] = k.shadows[i].value
|
||||
}
|
||||
return vals
|
||||
}
|
||||
|
||||
// transformValue takes a raw value and transforms to its final string.
|
||||
func (k *Key) transformValue(val string) string {
|
||||
if k.s.f.ValueMapper != nil {
|
||||
val = k.s.f.ValueMapper(val)
|
||||
}
|
||||
|
||||
// Fail-fast if no indicate char found for recursive value
|
||||
if !strings.Contains(val, "%") {
|
||||
return val
|
||||
}
|
||||
for i := 0; i < _DEPTH_VALUES; i++ {
|
||||
vr := varPattern.FindString(val)
|
||||
if len(vr) == 0 {
|
||||
break
|
||||
}
|
||||
|
||||
// Take off leading '%(' and trailing ')s'.
|
||||
noption := strings.TrimLeft(vr, "%(")
|
||||
noption = strings.TrimRight(noption, ")s")
|
||||
|
||||
// Search in the same section.
|
||||
nk, err := k.s.GetKey(noption)
|
||||
if err != nil {
|
||||
// Search again in default section.
|
||||
nk, _ = k.s.f.Section("").GetKey(noption)
|
||||
}
|
||||
|
||||
// Substitute by new value and take off leading '%(' and trailing ')s'.
|
||||
val = strings.Replace(val, vr, nk.value, -1)
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// String returns string representation of value.
|
||||
func (k *Key) String() string {
|
||||
return k.transformValue(k.value)
|
||||
}
|
||||
|
||||
// Validate accepts a validate function which can
|
||||
// return modifed result as key value.
|
||||
func (k *Key) Validate(fn func(string) string) string {
|
||||
return fn(k.String())
|
||||
}
|
||||
|
||||
// parseBool returns the boolean value represented by the string.
|
||||
//
|
||||
// It accepts 1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On,
|
||||
// 0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off.
|
||||
// Any other value returns an error.
|
||||
func parseBool(str string) (value bool, err error) {
|
||||
switch str {
|
||||
case "1", "t", "T", "true", "TRUE", "True", "YES", "yes", "Yes", "y", "ON", "on", "On":
|
||||
return true, nil
|
||||
case "0", "f", "F", "false", "FALSE", "False", "NO", "no", "No", "n", "OFF", "off", "Off":
|
||||
return false, nil
|
||||
}
|
||||
return false, fmt.Errorf("parsing \"%s\": invalid syntax", str)
|
||||
}
|
||||
|
||||
// Bool returns bool type value.
|
||||
func (k *Key) Bool() (bool, error) {
|
||||
return parseBool(k.String())
|
||||
}
|
||||
|
||||
// Float64 returns float64 type value.
|
||||
func (k *Key) Float64() (float64, error) {
|
||||
return strconv.ParseFloat(k.String(), 64)
|
||||
}
|
||||
|
||||
// Int returns int type value.
|
||||
func (k *Key) Int() (int, error) {
|
||||
return strconv.Atoi(k.String())
|
||||
}
|
||||
|
||||
// Int64 returns int64 type value.
|
||||
func (k *Key) Int64() (int64, error) {
|
||||
return strconv.ParseInt(k.String(), 10, 64)
|
||||
}
|
||||
|
||||
// Uint returns uint type valued.
|
||||
func (k *Key) Uint() (uint, error) {
|
||||
u, e := strconv.ParseUint(k.String(), 10, 64)
|
||||
return uint(u), e
|
||||
}
|
||||
|
||||
// Uint64 returns uint64 type value.
|
||||
func (k *Key) Uint64() (uint64, error) {
|
||||
return strconv.ParseUint(k.String(), 10, 64)
|
||||
}
|
||||
|
||||
// Duration returns time.Duration type value.
|
||||
func (k *Key) Duration() (time.Duration, error) {
|
||||
return time.ParseDuration(k.String())
|
||||
}
|
||||
|
||||
// TimeFormat parses with given format and returns time.Time type value.
|
||||
func (k *Key) TimeFormat(format string) (time.Time, error) {
|
||||
return time.Parse(format, k.String())
|
||||
}
|
||||
|
||||
// Time parses with RFC3339 format and returns time.Time type value.
|
||||
func (k *Key) Time() (time.Time, error) {
|
||||
return k.TimeFormat(time.RFC3339)
|
||||
}
|
||||
|
||||
// MustString returns default value if key value is empty.
|
||||
func (k *Key) MustString(defaultVal string) string {
|
||||
val := k.String()
|
||||
if len(val) == 0 {
|
||||
k.value = defaultVal
|
||||
return defaultVal
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// MustBool always returns value without error,
|
||||
// it returns false if error occurs.
|
||||
func (k *Key) MustBool(defaultVal ...bool) bool {
|
||||
val, err := k.Bool()
|
||||
if len(defaultVal) > 0 && err != nil {
|
||||
k.value = strconv.FormatBool(defaultVal[0])
|
||||
return defaultVal[0]
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// MustFloat64 always returns value without error,
|
||||
// it returns 0.0 if error occurs.
|
||||
func (k *Key) MustFloat64(defaultVal ...float64) float64 {
|
||||
val, err := k.Float64()
|
||||
if len(defaultVal) > 0 && err != nil {
|
||||
k.value = strconv.FormatFloat(defaultVal[0], 'f', -1, 64)
|
||||
return defaultVal[0]
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// MustInt always returns value without error,
|
||||
// it returns 0 if error occurs.
|
||||
func (k *Key) MustInt(defaultVal ...int) int {
|
||||
val, err := k.Int()
|
||||
if len(defaultVal) > 0 && err != nil {
|
||||
k.value = strconv.FormatInt(int64(defaultVal[0]), 10)
|
||||
return defaultVal[0]
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// MustInt64 always returns value without error,
|
||||
// it returns 0 if error occurs.
|
||||
func (k *Key) MustInt64(defaultVal ...int64) int64 {
|
||||
val, err := k.Int64()
|
||||
if len(defaultVal) > 0 && err != nil {
|
||||
k.value = strconv.FormatInt(defaultVal[0], 10)
|
||||
return defaultVal[0]
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// MustUint always returns value without error,
|
||||
// it returns 0 if error occurs.
|
||||
func (k *Key) MustUint(defaultVal ...uint) uint {
|
||||
val, err := k.Uint()
|
||||
if len(defaultVal) > 0 && err != nil {
|
||||
k.value = strconv.FormatUint(uint64(defaultVal[0]), 10)
|
||||
return defaultVal[0]
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// MustUint64 always returns value without error,
|
||||
// it returns 0 if error occurs.
|
||||
func (k *Key) MustUint64(defaultVal ...uint64) uint64 {
|
||||
val, err := k.Uint64()
|
||||
if len(defaultVal) > 0 && err != nil {
|
||||
k.value = strconv.FormatUint(defaultVal[0], 10)
|
||||
return defaultVal[0]
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// MustDuration always returns value without error,
|
||||
// it returns zero value if error occurs.
|
||||
func (k *Key) MustDuration(defaultVal ...time.Duration) time.Duration {
|
||||
val, err := k.Duration()
|
||||
if len(defaultVal) > 0 && err != nil {
|
||||
k.value = defaultVal[0].String()
|
||||
return defaultVal[0]
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// MustTimeFormat always parses with given format and returns value without error,
|
||||
// it returns zero value if error occurs.
|
||||
func (k *Key) MustTimeFormat(format string, defaultVal ...time.Time) time.Time {
|
||||
val, err := k.TimeFormat(format)
|
||||
if len(defaultVal) > 0 && err != nil {
|
||||
k.value = defaultVal[0].Format(format)
|
||||
return defaultVal[0]
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// MustTime always parses with RFC3339 format and returns value without error,
|
||||
// it returns zero value if error occurs.
|
||||
func (k *Key) MustTime(defaultVal ...time.Time) time.Time {
|
||||
return k.MustTimeFormat(time.RFC3339, defaultVal...)
|
||||
}
|
||||
|
||||
// In always returns value without error,
|
||||
// it returns default value if error occurs or doesn't fit into candidates.
|
||||
func (k *Key) In(defaultVal string, candidates []string) string {
|
||||
val := k.String()
|
||||
for _, cand := range candidates {
|
||||
if val == cand {
|
||||
return val
|
||||
}
|
||||
}
|
||||
return defaultVal
|
||||
}
|
||||
|
||||
// InFloat64 always returns value without error,
|
||||
// it returns default value if error occurs or doesn't fit into candidates.
|
||||
func (k *Key) InFloat64(defaultVal float64, candidates []float64) float64 {
|
||||
val := k.MustFloat64()
|
||||
for _, cand := range candidates {
|
||||
if val == cand {
|
||||
return val
|
||||
}
|
||||
}
|
||||
return defaultVal
|
||||
}
|
||||
|
||||
// InInt always returns value without error,
|
||||
// it returns default value if error occurs or doesn't fit into candidates.
|
||||
func (k *Key) InInt(defaultVal int, candidates []int) int {
|
||||
val := k.MustInt()
|
||||
for _, cand := range candidates {
|
||||
if val == cand {
|
||||
return val
|
||||
}
|
||||
}
|
||||
return defaultVal
|
||||
}
|
||||
|
||||
// InInt64 always returns value without error,
|
||||
// it returns default value if error occurs or doesn't fit into candidates.
|
||||
func (k *Key) InInt64(defaultVal int64, candidates []int64) int64 {
|
||||
val := k.MustInt64()
|
||||
for _, cand := range candidates {
|
||||
if val == cand {
|
||||
return val
|
||||
}
|
||||
}
|
||||
return defaultVal
|
||||
}
|
||||
|
||||
// InUint always returns value without error,
|
||||
// it returns default value if error occurs or doesn't fit into candidates.
|
||||
func (k *Key) InUint(defaultVal uint, candidates []uint) uint {
|
||||
val := k.MustUint()
|
||||
for _, cand := range candidates {
|
||||
if val == cand {
|
||||
return val
|
||||
}
|
||||
}
|
||||
return defaultVal
|
||||
}
|
||||
|
||||
// InUint64 always returns value without error,
|
||||
// it returns default value if error occurs or doesn't fit into candidates.
|
||||
func (k *Key) InUint64(defaultVal uint64, candidates []uint64) uint64 {
|
||||
val := k.MustUint64()
|
||||
for _, cand := range candidates {
|
||||
if val == cand {
|
||||
return val
|
||||
}
|
||||
}
|
||||
return defaultVal
|
||||
}
|
||||
|
||||
// InTimeFormat always parses with given format and returns value without error,
|
||||
// it returns default value if error occurs or doesn't fit into candidates.
|
||||
func (k *Key) InTimeFormat(format string, defaultVal time.Time, candidates []time.Time) time.Time {
|
||||
val := k.MustTimeFormat(format)
|
||||
for _, cand := range candidates {
|
||||
if val == cand {
|
||||
return val
|
||||
}
|
||||
}
|
||||
return defaultVal
|
||||
}
|
||||
|
||||
// InTime always parses with RFC3339 format and returns value without error,
|
||||
// it returns default value if error occurs or doesn't fit into candidates.
|
||||
func (k *Key) InTime(defaultVal time.Time, candidates []time.Time) time.Time {
|
||||
return k.InTimeFormat(time.RFC3339, defaultVal, candidates)
|
||||
}
|
||||
|
||||
// RangeFloat64 checks if value is in given range inclusively,
|
||||
// and returns default value if it's not.
|
||||
func (k *Key) RangeFloat64(defaultVal, min, max float64) float64 {
|
||||
val := k.MustFloat64()
|
||||
if val < min || val > max {
|
||||
return defaultVal
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// RangeInt checks if value is in given range inclusively,
|
||||
// and returns default value if it's not.
|
||||
func (k *Key) RangeInt(defaultVal, min, max int) int {
|
||||
val := k.MustInt()
|
||||
if val < min || val > max {
|
||||
return defaultVal
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// RangeInt64 checks if value is in given range inclusively,
|
||||
// and returns default value if it's not.
|
||||
func (k *Key) RangeInt64(defaultVal, min, max int64) int64 {
|
||||
val := k.MustInt64()
|
||||
if val < min || val > max {
|
||||
return defaultVal
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// RangeTimeFormat checks if value with given format is in given range inclusively,
|
||||
// and returns default value if it's not.
|
||||
func (k *Key) RangeTimeFormat(format string, defaultVal, min, max time.Time) time.Time {
|
||||
val := k.MustTimeFormat(format)
|
||||
if val.Unix() < min.Unix() || val.Unix() > max.Unix() {
|
||||
return defaultVal
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// RangeTime checks if value with RFC3339 format is in given range inclusively,
|
||||
// and returns default value if it's not.
|
||||
func (k *Key) RangeTime(defaultVal, min, max time.Time) time.Time {
|
||||
return k.RangeTimeFormat(time.RFC3339, defaultVal, min, max)
|
||||
}
|
||||
|
||||
// Strings returns list of string divided by given delimiter.
|
||||
func (k *Key) Strings(delim string) []string {
|
||||
str := k.String()
|
||||
if len(str) == 0 {
|
||||
return []string{}
|
||||
}
|
||||
|
||||
vals := strings.Split(str, delim)
|
||||
for i := range vals {
|
||||
// vals[i] = k.transformValue(strings.TrimSpace(vals[i]))
|
||||
vals[i] = strings.TrimSpace(vals[i])
|
||||
}
|
||||
return vals
|
||||
}
|
||||
|
||||
// StringsWithShadows returns list of string divided by given delimiter.
|
||||
// Shadows will also be appended if any.
|
||||
func (k *Key) StringsWithShadows(delim string) []string {
|
||||
vals := k.ValueWithShadows()
|
||||
results := make([]string, 0, len(vals)*2)
|
||||
for i := range vals {
|
||||
if len(vals) == 0 {
|
||||
continue
|
||||
}
|
||||
|
||||
results = append(results, strings.Split(vals[i], delim)...)
|
||||
}
|
||||
|
||||
for i := range results {
|
||||
results[i] = k.transformValue(strings.TrimSpace(results[i]))
|
||||
}
|
||||
return results
|
||||
}
|
||||
|
||||
// Float64s returns list of float64 divided by given delimiter. Any invalid input will be treated as zero value.
|
||||
func (k *Key) Float64s(delim string) []float64 {
|
||||
vals, _ := k.parseFloat64s(k.Strings(delim), true, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// Ints returns list of int divided by given delimiter. Any invalid input will be treated as zero value.
|
||||
func (k *Key) Ints(delim string) []int {
|
||||
vals, _ := k.parseInts(k.Strings(delim), true, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// Int64s returns list of int64 divided by given delimiter. Any invalid input will be treated as zero value.
|
||||
func (k *Key) Int64s(delim string) []int64 {
|
||||
vals, _ := k.parseInt64s(k.Strings(delim), true, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// Uints returns list of uint divided by given delimiter. Any invalid input will be treated as zero value.
|
||||
func (k *Key) Uints(delim string) []uint {
|
||||
vals, _ := k.parseUints(k.Strings(delim), true, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// Uint64s returns list of uint64 divided by given delimiter. Any invalid input will be treated as zero value.
|
||||
func (k *Key) Uint64s(delim string) []uint64 {
|
||||
vals, _ := k.parseUint64s(k.Strings(delim), true, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// TimesFormat parses with given format and returns list of time.Time divided by given delimiter.
|
||||
// Any invalid input will be treated as zero value (0001-01-01 00:00:00 +0000 UTC).
|
||||
func (k *Key) TimesFormat(format, delim string) []time.Time {
|
||||
vals, _ := k.parseTimesFormat(format, k.Strings(delim), true, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// Times parses with RFC3339 format and returns list of time.Time divided by given delimiter.
|
||||
// Any invalid input will be treated as zero value (0001-01-01 00:00:00 +0000 UTC).
|
||||
func (k *Key) Times(delim string) []time.Time {
|
||||
return k.TimesFormat(time.RFC3339, delim)
|
||||
}
|
||||
|
||||
// ValidFloat64s returns list of float64 divided by given delimiter. If some value is not float, then
|
||||
// it will not be included to result list.
|
||||
func (k *Key) ValidFloat64s(delim string) []float64 {
|
||||
vals, _ := k.parseFloat64s(k.Strings(delim), false, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// ValidInts returns list of int divided by given delimiter. If some value is not integer, then it will
|
||||
// not be included to result list.
|
||||
func (k *Key) ValidInts(delim string) []int {
|
||||
vals, _ := k.parseInts(k.Strings(delim), false, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// ValidInt64s returns list of int64 divided by given delimiter. If some value is not 64-bit integer,
|
||||
// then it will not be included to result list.
|
||||
func (k *Key) ValidInt64s(delim string) []int64 {
|
||||
vals, _ := k.parseInt64s(k.Strings(delim), false, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// ValidUints returns list of uint divided by given delimiter. If some value is not unsigned integer,
|
||||
// then it will not be included to result list.
|
||||
func (k *Key) ValidUints(delim string) []uint {
|
||||
vals, _ := k.parseUints(k.Strings(delim), false, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// ValidUint64s returns list of uint64 divided by given delimiter. If some value is not 64-bit unsigned
|
||||
// integer, then it will not be included to result list.
|
||||
func (k *Key) ValidUint64s(delim string) []uint64 {
|
||||
vals, _ := k.parseUint64s(k.Strings(delim), false, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// ValidTimesFormat parses with given format and returns list of time.Time divided by given delimiter.
|
||||
func (k *Key) ValidTimesFormat(format, delim string) []time.Time {
|
||||
vals, _ := k.parseTimesFormat(format, k.Strings(delim), false, false)
|
||||
return vals
|
||||
}
|
||||
|
||||
// ValidTimes parses with RFC3339 format and returns list of time.Time divided by given delimiter.
|
||||
func (k *Key) ValidTimes(delim string) []time.Time {
|
||||
return k.ValidTimesFormat(time.RFC3339, delim)
|
||||
}
|
||||
|
||||
// StrictFloat64s returns list of float64 divided by given delimiter or error on first invalid input.
|
||||
func (k *Key) StrictFloat64s(delim string) ([]float64, error) {
|
||||
return k.parseFloat64s(k.Strings(delim), false, true)
|
||||
}
|
||||
|
||||
// StrictInts returns list of int divided by given delimiter or error on first invalid input.
|
||||
func (k *Key) StrictInts(delim string) ([]int, error) {
|
||||
return k.parseInts(k.Strings(delim), false, true)
|
||||
}
|
||||
|
||||
// StrictInt64s returns list of int64 divided by given delimiter or error on first invalid input.
|
||||
func (k *Key) StrictInt64s(delim string) ([]int64, error) {
|
||||
return k.parseInt64s(k.Strings(delim), false, true)
|
||||
}
|
||||
|
||||
// StrictUints returns list of uint divided by given delimiter or error on first invalid input.
|
||||
func (k *Key) StrictUints(delim string) ([]uint, error) {
|
||||
return k.parseUints(k.Strings(delim), false, true)
|
||||
}
|
||||
|
||||
// StrictUint64s returns list of uint64 divided by given delimiter or error on first invalid input.
|
||||
func (k *Key) StrictUint64s(delim string) ([]uint64, error) {
|
||||
return k.parseUint64s(k.Strings(delim), false, true)
|
||||
}
|
||||
|
||||
// StrictTimesFormat parses with given format and returns list of time.Time divided by given delimiter
|
||||
// or error on first invalid input.
|
||||
func (k *Key) StrictTimesFormat(format, delim string) ([]time.Time, error) {
|
||||
return k.parseTimesFormat(format, k.Strings(delim), false, true)
|
||||
}
|
||||
|
||||
// StrictTimes parses with RFC3339 format and returns list of time.Time divided by given delimiter
|
||||
// or error on first invalid input.
|
||||
func (k *Key) StrictTimes(delim string) ([]time.Time, error) {
|
||||
return k.StrictTimesFormat(time.RFC3339, delim)
|
||||
}
|
||||
|
||||
// parseFloat64s transforms strings to float64s.
|
||||
func (k *Key) parseFloat64s(strs []string, addInvalid, returnOnInvalid bool) ([]float64, error) {
|
||||
vals := make([]float64, 0, len(strs))
|
||||
for _, str := range strs {
|
||||
val, err := strconv.ParseFloat(str, 64)
|
||||
if err != nil && returnOnInvalid {
|
||||
return nil, err
|
||||
}
|
||||
if err == nil || addInvalid {
|
||||
vals = append(vals, val)
|
||||
}
|
||||
}
|
||||
return vals, nil
|
||||
}
|
||||
|
||||
// parseInts transforms strings to ints.
|
||||
func (k *Key) parseInts(strs []string, addInvalid, returnOnInvalid bool) ([]int, error) {
|
||||
vals := make([]int, 0, len(strs))
|
||||
for _, str := range strs {
|
||||
val, err := strconv.Atoi(str)
|
||||
if err != nil && returnOnInvalid {
|
||||
return nil, err
|
||||
}
|
||||
if err == nil || addInvalid {
|
||||
vals = append(vals, val)
|
||||
}
|
||||
}
|
||||
return vals, nil
|
||||
}
|
||||
|
||||
// parseInt64s transforms strings to int64s.
|
||||
func (k *Key) parseInt64s(strs []string, addInvalid, returnOnInvalid bool) ([]int64, error) {
|
||||
vals := make([]int64, 0, len(strs))
|
||||
for _, str := range strs {
|
||||
val, err := strconv.ParseInt(str, 10, 64)
|
||||
if err != nil && returnOnInvalid {
|
||||
return nil, err
|
||||
}
|
||||
if err == nil || addInvalid {
|
||||
vals = append(vals, val)
|
||||
}
|
||||
}
|
||||
return vals, nil
|
||||
}
|
||||
|
||||
// parseUints transforms strings to uints.
|
||||
func (k *Key) parseUints(strs []string, addInvalid, returnOnInvalid bool) ([]uint, error) {
|
||||
vals := make([]uint, 0, len(strs))
|
||||
for _, str := range strs {
|
||||
val, err := strconv.ParseUint(str, 10, 0)
|
||||
if err != nil && returnOnInvalid {
|
||||
return nil, err
|
||||
}
|
||||
if err == nil || addInvalid {
|
||||
vals = append(vals, uint(val))
|
||||
}
|
||||
}
|
||||
return vals, nil
|
||||
}
|
||||
|
||||
// parseUint64s transforms strings to uint64s.
|
||||
func (k *Key) parseUint64s(strs []string, addInvalid, returnOnInvalid bool) ([]uint64, error) {
|
||||
vals := make([]uint64, 0, len(strs))
|
||||
for _, str := range strs {
|
||||
val, err := strconv.ParseUint(str, 10, 64)
|
||||
if err != nil && returnOnInvalid {
|
||||
return nil, err
|
||||
}
|
||||
if err == nil || addInvalid {
|
||||
vals = append(vals, val)
|
||||
}
|
||||
}
|
||||
return vals, nil
|
||||
}
|
||||
|
||||
// parseTimesFormat transforms strings to times in given format.
|
||||
func (k *Key) parseTimesFormat(format string, strs []string, addInvalid, returnOnInvalid bool) ([]time.Time, error) {
|
||||
vals := make([]time.Time, 0, len(strs))
|
||||
for _, str := range strs {
|
||||
val, err := time.Parse(format, str)
|
||||
if err != nil && returnOnInvalid {
|
||||
return nil, err
|
||||
}
|
||||
if err == nil || addInvalid {
|
||||
vals = append(vals, val)
|
||||
}
|
||||
}
|
||||
return vals, nil
|
||||
}
|
||||
|
||||
// SetValue changes key value.
|
||||
func (k *Key) SetValue(v string) {
|
||||
if k.s.f.BlockMode {
|
||||
k.s.f.lock.Lock()
|
||||
defer k.s.f.lock.Unlock()
|
||||
}
|
||||
|
||||
k.value = v
|
||||
k.s.keysHash[k.name] = v
|
||||
}
|
||||
|
|
@ -0,0 +1,361 @@
|
|||
// Copyright 2015 Unknwon
|
||||
//
|
||||
// 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
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS, 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.
|
||||
|
||||
package ini
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"bytes"
|
||||
"fmt"
|
||||
"io"
|
||||
"strconv"
|
||||
"strings"
|
||||
"unicode"
|
||||
)
|
||||
|
||||
type tokenType int
|
||||
|
||||
const (
|
||||
_TOKEN_INVALID tokenType = iota
|
||||
_TOKEN_COMMENT
|
||||
_TOKEN_SECTION
|
||||
_TOKEN_KEY
|
||||
)
|
||||
|
||||
type parser struct {
|
||||
buf *bufio.Reader
|
||||
isEOF bool
|
||||
count int
|
||||
comment *bytes.Buffer
|
||||
}
|
||||
|
||||
func newParser(r io.Reader) *parser {
|
||||
return &parser{
|
||||
buf: bufio.NewReader(r),
|
||||
count: 1,
|
||||
comment: &bytes.Buffer{},
|
||||
}
|
||||
}
|
||||
|
||||
// BOM handles header of UTF-8, UTF-16 LE and UTF-16 BE's BOM format.
|
||||
// http://en.wikipedia.org/wiki/Byte_order_mark#Representations_of_byte_order_marks_by_encoding
|
||||
func (p *parser) BOM() error {
|
||||
mask, err := p.buf.Peek(2)
|
||||
if err != nil && err != io.EOF {
|
||||
return err
|
||||
} else if len(mask) < 2 {
|
||||
return nil
|
||||
}
|
||||
|
||||
switch {
|
||||
case mask[0] == 254 && mask[1] == 255:
|
||||
fallthrough
|
||||
case mask[0] == 255 && mask[1] == 254:
|
||||
p.buf.Read(mask)
|
||||
case mask[0] == 239 && mask[1] == 187:
|
||||
mask, err := p.buf.Peek(3)
|
||||
if err != nil && err != io.EOF {
|
||||
return err
|
||||
} else if len(mask) < 3 {
|
||||
return nil
|
||||
}
|
||||
if mask[2] == 191 {
|
||||
p.buf.Read(mask)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (p *parser) readUntil(delim byte) ([]byte, error) {
|
||||
data, err := p.buf.ReadBytes(delim)
|
||||
if err != nil {
|
||||
if err == io.EOF {
|
||||
p.isEOF = true
|
||||
} else {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
return data, nil
|
||||
}
|
||||
|
||||
func cleanComment(in []byte) ([]byte, bool) {
|
||||
i := bytes.IndexAny(in, "#;")
|
||||
if i == -1 {
|
||||
return nil, false
|
||||
}
|
||||
return in[i:], true
|
||||
}
|
||||
|
||||
func readKeyName(in []byte) (string, int, error) {
|
||||
line := string(in)
|
||||
|
||||
// Check if key name surrounded by quotes.
|
||||
var keyQuote string
|
||||
if line[0] == '"' {
|
||||
if len(line) > 6 && string(line[0:3]) == `"""` {
|
||||
keyQuote = `"""`
|
||||
} else {
|
||||
keyQuote = `"`
|
||||
}
|
||||
} else if line[0] == '`' {
|
||||
keyQuote = "`"
|
||||
}
|
||||
|
||||
// Get out key name
|
||||
endIdx := -1
|
||||
if len(keyQuote) > 0 {
|
||||
startIdx := len(keyQuote)
|
||||
// FIXME: fail case -> """"""name"""=value
|
||||
pos := strings.Index(line[startIdx:], keyQuote)
|
||||
if pos == -1 {
|
||||
return "", -1, fmt.Errorf("missing closing key quote: %s", line)
|
||||
}
|
||||
pos += startIdx
|
||||
|
||||
// Find key-value delimiter
|
||||
i := strings.IndexAny(line[pos+startIdx:], "=:")
|
||||
if i < 0 {
|
||||
return "", -1, ErrDelimiterNotFound{line}
|
||||
}
|
||||
endIdx = pos + i
|
||||
return strings.TrimSpace(line[startIdx:pos]), endIdx + startIdx + 1, nil
|
||||
}
|
||||
|
||||
endIdx = strings.IndexAny(line, "=:")
|
||||
if endIdx < 0 {
|
||||
return "", -1, ErrDelimiterNotFound{line}
|
||||
}
|
||||
return strings.TrimSpace(line[0:endIdx]), endIdx + 1, nil
|
||||
}
|
||||
|
||||
func (p *parser) readMultilines(line, val, valQuote string) (string, error) {
|
||||
for {
|
||||
data, err := p.readUntil('\n')
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
next := string(data)
|
||||
|
||||
pos := strings.LastIndex(next, valQuote)
|
||||
if pos > -1 {
|
||||
val += next[:pos]
|
||||
|
||||
comment, has := cleanComment([]byte(next[pos:]))
|
||||
if has {
|
||||
p.comment.Write(bytes.TrimSpace(comment))
|
||||
}
|
||||
break
|
||||
}
|
||||
val += next
|
||||
if p.isEOF {
|
||||
return "", fmt.Errorf("missing closing key quote from '%s' to '%s'", line, next)
|
||||
}
|
||||
}
|
||||
return val, nil
|
||||
}
|
||||
|
||||
func (p *parser) readContinuationLines(val string) (string, error) {
|
||||
for {
|
||||
data, err := p.readUntil('\n')
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
next := strings.TrimSpace(string(data))
|
||||
|
||||
if len(next) == 0 {
|
||||
break
|
||||
}
|
||||
val += next
|
||||
if val[len(val)-1] != '\\' {
|
||||
break
|
||||
}
|
||||
val = val[:len(val)-1]
|
||||
}
|
||||
return val, nil
|
||||
}
|
||||
|
||||
// hasSurroundedQuote check if and only if the first and last characters
|
||||
// are quotes \" or \'.
|
||||
// It returns false if any other parts also contain same kind of quotes.
|
||||
func hasSurroundedQuote(in string, quote byte) bool {
|
||||
return len(in) >= 2 && in[0] == quote && in[len(in)-1] == quote &&
|
||||
strings.IndexByte(in[1:], quote) == len(in)-2
|
||||
}
|
||||
|
||||
func (p *parser) readValue(in []byte, ignoreContinuation, ignoreInlineComment bool) (string, error) {
|
||||
line := strings.TrimLeftFunc(string(in), unicode.IsSpace)
|
||||
if len(line) == 0 {
|
||||
return "", nil
|
||||
}
|
||||
|
||||
var valQuote string
|
||||
if len(line) > 3 && string(line[0:3]) == `"""` {
|
||||
valQuote = `"""`
|
||||
} else if line[0] == '`' {
|
||||
valQuote = "`"
|
||||
}
|
||||
|
||||
if len(valQuote) > 0 {
|
||||
startIdx := len(valQuote)
|
||||
pos := strings.LastIndex(line[startIdx:], valQuote)
|
||||
// Check for multi-line value
|
||||
if pos == -1 {
|
||||
return p.readMultilines(line, line[startIdx:], valQuote)
|
||||
}
|
||||
|
||||
return line[startIdx : pos+startIdx], nil
|
||||
}
|
||||
|
||||
// Won't be able to reach here if value only contains whitespace
|
||||
line = strings.TrimSpace(line)
|
||||
|
||||
// Check continuation lines when desired
|
||||
if !ignoreContinuation && line[len(line)-1] == '\\' {
|
||||
return p.readContinuationLines(line[:len(line)-1])
|
||||
}
|
||||
|
||||
// Check if ignore inline comment
|
||||
if !ignoreInlineComment {
|
||||
i := strings.IndexAny(line, "#;")
|
||||
if i > -1 {
|
||||
p.comment.WriteString(line[i:])
|
||||
line = strings.TrimSpace(line[:i])
|
||||
}
|
||||
}
|
||||
|
||||
// Trim single quotes
|
||||
if hasSurroundedQuote(line, '\'') ||
|
||||
hasSurroundedQuote(line, '"') {
|
||||
line = line[1 : len(line)-1]
|
||||
}
|
||||
return line, nil
|
||||
}
|
||||
|
||||
// parse parses data through an io.Reader.
|
||||
func (f *File) parse(reader io.Reader) (err error) {
|
||||
p := newParser(reader)
|
||||
if err = p.BOM(); err != nil {
|
||||
return fmt.Errorf("BOM: %v", err)
|
||||
}
|
||||
|
||||
// Ignore error because default section name is never empty string.
|
||||
section, _ := f.NewSection(DEFAULT_SECTION)
|
||||
|
||||
var line []byte
|
||||
var inUnparseableSection bool
|
||||
for !p.isEOF {
|
||||
line, err = p.readUntil('\n')
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
line = bytes.TrimLeftFunc(line, unicode.IsSpace)
|
||||
if len(line) == 0 {
|
||||
continue
|
||||
}
|
||||
|
||||
// Comments
|
||||
if line[0] == '#' || line[0] == ';' {
|
||||
// Note: we do not care ending line break,
|
||||
// it is needed for adding second line,
|
||||
// so just clean it once at the end when set to value.
|
||||
p.comment.Write(line)
|
||||
continue
|
||||
}
|
||||
|
||||
// Section
|
||||
if line[0] == '[' {
|
||||
// Read to the next ']' (TODO: support quoted strings)
|
||||
// TODO(unknwon): use LastIndexByte when stop supporting Go1.4
|
||||
closeIdx := bytes.LastIndex(line, []byte("]"))
|
||||
if closeIdx == -1 {
|
||||
return fmt.Errorf("unclosed section: %s", line)
|
||||
}
|
||||
|
||||
name := string(line[1:closeIdx])
|
||||
section, err = f.NewSection(name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
comment, has := cleanComment(line[closeIdx+1:])
|
||||
if has {
|
||||
p.comment.Write(comment)
|
||||
}
|
||||
|
||||
section.Comment = strings.TrimSpace(p.comment.String())
|
||||
|
||||
// Reset aotu-counter and comments
|
||||
p.comment.Reset()
|
||||
p.count = 1
|
||||
|
||||
inUnparseableSection = false
|
||||
for i := range f.options.UnparseableSections {
|
||||
if f.options.UnparseableSections[i] == name ||
|
||||
(f.options.Insensitive && strings.ToLower(f.options.UnparseableSections[i]) == strings.ToLower(name)) {
|
||||
inUnparseableSection = true
|
||||
continue
|
||||
}
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
if inUnparseableSection {
|
||||
section.isRawSection = true
|
||||
section.rawBody += string(line)
|
||||
continue
|
||||
}
|
||||
|
||||
kname, offset, err := readKeyName(line)
|
||||
if err != nil {
|
||||
// Treat as boolean key when desired, and whole line is key name.
|
||||
if IsErrDelimiterNotFound(err) && f.options.AllowBooleanKeys {
|
||||
kname, err := p.readValue(line, f.options.IgnoreContinuation, f.options.IgnoreInlineComment)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
key, err := section.NewBooleanKey(kname)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
key.Comment = strings.TrimSpace(p.comment.String())
|
||||
p.comment.Reset()
|
||||
continue
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// Auto increment.
|
||||
isAutoIncr := false
|
||||
if kname == "-" {
|
||||
isAutoIncr = true
|
||||
kname = "#" + strconv.Itoa(p.count)
|
||||
p.count++
|
||||
}
|
||||
|
||||
value, err := p.readValue(line[offset:], f.options.IgnoreContinuation, f.options.IgnoreInlineComment)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
key, err := section.NewKey(kname, value)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
key.isAutoIncrement = isAutoIncr
|
||||
key.Comment = strings.TrimSpace(p.comment.String())
|
||||
p.comment.Reset()
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
|
@ -0,0 +1,248 @@
|
|||
// Copyright 2014 Unknwon
|
||||
//
|
||||
// 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
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS, 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.
|
||||
|
||||
package ini
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Section represents a config section.
|
||||
type Section struct {
|
||||
f *File
|
||||
Comment string
|
||||
name string
|
||||
keys map[string]*Key
|
||||
keyList []string
|
||||
keysHash map[string]string
|
||||
|
||||
isRawSection bool
|
||||
rawBody string
|
||||
}
|
||||
|
||||
func newSection(f *File, name string) *Section {
|
||||
return &Section{
|
||||
f: f,
|
||||
name: name,
|
||||
keys: make(map[string]*Key),
|
||||
keyList: make([]string, 0, 10),
|
||||
keysHash: make(map[string]string),
|
||||
}
|
||||
}
|
||||
|
||||
// Name returns name of Section.
|
||||
func (s *Section) Name() string {
|
||||
return s.name
|
||||
}
|
||||
|
||||
// Body returns rawBody of Section if the section was marked as unparseable.
|
||||
// It still follows the other rules of the INI format surrounding leading/trailing whitespace.
|
||||
func (s *Section) Body() string {
|
||||
return strings.TrimSpace(s.rawBody)
|
||||
}
|
||||
|
||||
// NewKey creates a new key to given section.
|
||||
func (s *Section) NewKey(name, val string) (*Key, error) {
|
||||
if len(name) == 0 {
|
||||
return nil, errors.New("error creating new key: empty key name")
|
||||
} else if s.f.options.Insensitive {
|
||||
name = strings.ToLower(name)
|
||||
}
|
||||
|
||||
if s.f.BlockMode {
|
||||
s.f.lock.Lock()
|
||||
defer s.f.lock.Unlock()
|
||||
}
|
||||
|
||||
if inSlice(name, s.keyList) {
|
||||
if s.f.options.AllowShadows {
|
||||
if err := s.keys[name].addShadow(val); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
} else {
|
||||
s.keys[name].value = val
|
||||
}
|
||||
return s.keys[name], nil
|
||||
}
|
||||
|
||||
s.keyList = append(s.keyList, name)
|
||||
s.keys[name] = newKey(s, name, val)
|
||||
s.keysHash[name] = val
|
||||
return s.keys[name], nil
|
||||
}
|
||||
|
||||
// NewBooleanKey creates a new boolean type key to given section.
|
||||
func (s *Section) NewBooleanKey(name string) (*Key, error) {
|
||||
key, err := s.NewKey(name, "true")
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
key.isBooleanType = true
|
||||
return key, nil
|
||||
}
|
||||
|
||||
// GetKey returns key in section by given name.
|
||||
func (s *Section) GetKey(name string) (*Key, error) {
|
||||
// FIXME: change to section level lock?
|
||||
if s.f.BlockMode {
|
||||
s.f.lock.RLock()
|
||||
}
|
||||
if s.f.options.Insensitive {
|
||||
name = strings.ToLower(name)
|
||||
}
|
||||
key := s.keys[name]
|
||||
if s.f.BlockMode {
|
||||
s.f.lock.RUnlock()
|
||||
}
|
||||
|
||||
if key == nil {
|
||||
// Check if it is a child-section.
|
||||
sname := s.name
|
||||
for {
|
||||
if i := strings.LastIndex(sname, "."); i > -1 {
|
||||
sname = sname[:i]
|
||||
sec, err := s.f.GetSection(sname)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
return sec.GetKey(name)
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
return nil, fmt.Errorf("error when getting key of section '%s': key '%s' not exists", s.name, name)
|
||||
}
|
||||
return key, nil
|
||||
}
|
||||
|
||||
// HasKey returns true if section contains a key with given name.
|
||||
func (s *Section) HasKey(name string) bool {
|
||||
key, _ := s.GetKey(name)
|
||||
return key != nil
|
||||
}
|
||||
|
||||
// Haskey is a backwards-compatible name for HasKey.
|
||||
func (s *Section) Haskey(name string) bool {
|
||||
return s.HasKey(name)
|
||||
}
|
||||
|
||||
// HasValue returns true if section contains given raw value.
|
||||
func (s *Section) HasValue(value string) bool {
|
||||
if s.f.BlockMode {
|
||||
s.f.lock.RLock()
|
||||
defer s.f.lock.RUnlock()
|
||||
}
|
||||
|
||||
for _, k := range s.keys {
|
||||
if value == k.value {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// Key assumes named Key exists in section and returns a zero-value when not.
|
||||
func (s *Section) Key(name string) *Key {
|
||||
key, err := s.GetKey(name)
|
||||
if err != nil {
|
||||
// It's OK here because the only possible error is empty key name,
|
||||
// but if it's empty, this piece of code won't be executed.
|
||||
key, _ = s.NewKey(name, "")
|
||||
return key
|
||||
}
|
||||
return key
|
||||
}
|
||||
|
||||
// Keys returns list of keys of section.
|
||||
func (s *Section) Keys() []*Key {
|
||||
keys := make([]*Key, len(s.keyList))
|
||||
for i := range s.keyList {
|
||||
keys[i] = s.Key(s.keyList[i])
|
||||
}
|
||||
return keys
|
||||
}
|
||||
|
||||
// ParentKeys returns list of keys of parent section.
|
||||
func (s *Section) ParentKeys() []*Key {
|
||||
var parentKeys []*Key
|
||||
sname := s.name
|
||||
for {
|
||||
if i := strings.LastIndex(sname, "."); i > -1 {
|
||||
sname = sname[:i]
|
||||
sec, err := s.f.GetSection(sname)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
parentKeys = append(parentKeys, sec.Keys()...)
|
||||
} else {
|
||||
break
|
||||
}
|
||||
|
||||
}
|
||||
return parentKeys
|
||||
}
|
||||
|
||||
// KeyStrings returns list of key names of section.
|
||||
func (s *Section) KeyStrings() []string {
|
||||
list := make([]string, len(s.keyList))
|
||||
copy(list, s.keyList)
|
||||
return list
|
||||
}
|
||||
|
||||
// KeysHash returns keys hash consisting of names and values.
|
||||
func (s *Section) KeysHash() map[string]string {
|
||||
if s.f.BlockMode {
|
||||
s.f.lock.RLock()
|
||||
defer s.f.lock.RUnlock()
|
||||
}
|
||||
|
||||
hash := map[string]string{}
|
||||
for key, value := range s.keysHash {
|
||||
hash[key] = value
|
||||
}
|
||||
return hash
|
||||
}
|
||||
|
||||
// DeleteKey deletes a key from section.
|
||||
func (s *Section) DeleteKey(name string) {
|
||||
if s.f.BlockMode {
|
||||
s.f.lock.Lock()
|
||||
defer s.f.lock.Unlock()
|
||||
}
|
||||
|
||||
for i, k := range s.keyList {
|
||||
if k == name {
|
||||
s.keyList = append(s.keyList[:i], s.keyList[i+1:]...)
|
||||
delete(s.keys, name)
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ChildSections returns a list of child sections of current section.
|
||||
// For example, "[parent.child1]" and "[parent.child12]" are child sections
|
||||
// of section "[parent]".
|
||||
func (s *Section) ChildSections() []*Section {
|
||||
prefix := s.name + "."
|
||||
children := make([]*Section, 0, 3)
|
||||
for _, name := range s.f.sectionList {
|
||||
if strings.HasPrefix(name, prefix) {
|
||||
children = append(children, s.f.sections[name])
|
||||
}
|
||||
}
|
||||
return children
|
||||
}
|
||||
|
|
@ -0,0 +1,500 @@
|
|||
// Copyright 2014 Unknwon
|
||||
//
|
||||
// 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
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS, 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.
|
||||
|
||||
package ini
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strings"
|
||||
"time"
|
||||
"unicode"
|
||||
)
|
||||
|
||||
// NameMapper represents a ini tag name mapper.
|
||||
type NameMapper func(string) string
|
||||
|
||||
// Built-in name getters.
|
||||
var (
|
||||
// AllCapsUnderscore converts to format ALL_CAPS_UNDERSCORE.
|
||||
AllCapsUnderscore NameMapper = func(raw string) string {
|
||||
newstr := make([]rune, 0, len(raw))
|
||||
for i, chr := range raw {
|
||||
if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
|
||||
if i > 0 {
|
||||
newstr = append(newstr, '_')
|
||||
}
|
||||
}
|
||||
newstr = append(newstr, unicode.ToUpper(chr))
|
||||
}
|
||||
return string(newstr)
|
||||
}
|
||||
// TitleUnderscore converts to format title_underscore.
|
||||
TitleUnderscore NameMapper = func(raw string) string {
|
||||
newstr := make([]rune, 0, len(raw))
|
||||
for i, chr := range raw {
|
||||
if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
|
||||
if i > 0 {
|
||||
newstr = append(newstr, '_')
|
||||
}
|
||||
chr -= ('A' - 'a')
|
||||
}
|
||||
newstr = append(newstr, chr)
|
||||
}
|
||||
return string(newstr)
|
||||
}
|
||||
)
|
||||
|
||||
func (s *Section) parseFieldName(raw, actual string) string {
|
||||
if len(actual) > 0 {
|
||||
return actual
|
||||
}
|
||||
if s.f.NameMapper != nil {
|
||||
return s.f.NameMapper(raw)
|
||||
}
|
||||
return raw
|
||||
}
|
||||
|
||||
func parseDelim(actual string) string {
|
||||
if len(actual) > 0 {
|
||||
return actual
|
||||
}
|
||||
return ","
|
||||
}
|
||||
|
||||
var reflectTime = reflect.TypeOf(time.Now()).Kind()
|
||||
|
||||
// setSliceWithProperType sets proper values to slice based on its type.
|
||||
func setSliceWithProperType(key *Key, field reflect.Value, delim string, allowShadow, isStrict bool) error {
|
||||
var strs []string
|
||||
if allowShadow {
|
||||
strs = key.StringsWithShadows(delim)
|
||||
} else {
|
||||
strs = key.Strings(delim)
|
||||
}
|
||||
|
||||
numVals := len(strs)
|
||||
if numVals == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
var vals interface{}
|
||||
var err error
|
||||
|
||||
sliceOf := field.Type().Elem().Kind()
|
||||
switch sliceOf {
|
||||
case reflect.String:
|
||||
vals = strs
|
||||
case reflect.Int:
|
||||
vals, err = key.parseInts(strs, true, false)
|
||||
case reflect.Int64:
|
||||
vals, err = key.parseInt64s(strs, true, false)
|
||||
case reflect.Uint:
|
||||
vals, err = key.parseUints(strs, true, false)
|
||||
case reflect.Uint64:
|
||||
vals, err = key.parseUint64s(strs, true, false)
|
||||
case reflect.Float64:
|
||||
vals, err = key.parseFloat64s(strs, true, false)
|
||||
case reflectTime:
|
||||
vals, err = key.parseTimesFormat(time.RFC3339, strs, true, false)
|
||||
default:
|
||||
return fmt.Errorf("unsupported type '[]%s'", sliceOf)
|
||||
}
|
||||
if isStrict {
|
||||
return err
|
||||
}
|
||||
|
||||
slice := reflect.MakeSlice(field.Type(), numVals, numVals)
|
||||
for i := 0; i < numVals; i++ {
|
||||
switch sliceOf {
|
||||
case reflect.String:
|
||||
slice.Index(i).Set(reflect.ValueOf(vals.([]string)[i]))
|
||||
case reflect.Int:
|
||||
slice.Index(i).Set(reflect.ValueOf(vals.([]int)[i]))
|
||||
case reflect.Int64:
|
||||
slice.Index(i).Set(reflect.ValueOf(vals.([]int64)[i]))
|
||||
case reflect.Uint:
|
||||
slice.Index(i).Set(reflect.ValueOf(vals.([]uint)[i]))
|
||||
case reflect.Uint64:
|
||||
slice.Index(i).Set(reflect.ValueOf(vals.([]uint64)[i]))
|
||||
case reflect.Float64:
|
||||
slice.Index(i).Set(reflect.ValueOf(vals.([]float64)[i]))
|
||||
case reflectTime:
|
||||
slice.Index(i).Set(reflect.ValueOf(vals.([]time.Time)[i]))
|
||||
}
|
||||
}
|
||||
field.Set(slice)
|
||||
return nil
|
||||
}
|
||||
|
||||
func wrapStrictError(err error, isStrict bool) error {
|
||||
if isStrict {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// setWithProperType sets proper value to field based on its type,
|
||||
// but it does not return error for failing parsing,
|
||||
// because we want to use default value that is already assigned to strcut.
|
||||
func setWithProperType(t reflect.Type, key *Key, field reflect.Value, delim string, allowShadow, isStrict bool) error {
|
||||
switch t.Kind() {
|
||||
case reflect.String:
|
||||
if len(key.String()) == 0 {
|
||||
return nil
|
||||
}
|
||||
field.SetString(key.String())
|
||||
case reflect.Bool:
|
||||
boolVal, err := key.Bool()
|
||||
if err != nil {
|
||||
return wrapStrictError(err, isStrict)
|
||||
}
|
||||
field.SetBool(boolVal)
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
durationVal, err := key.Duration()
|
||||
// Skip zero value
|
||||
if err == nil && int(durationVal) > 0 {
|
||||
field.Set(reflect.ValueOf(durationVal))
|
||||
return nil
|
||||
}
|
||||
|
||||
intVal, err := key.Int64()
|
||||
if err != nil {
|
||||
return wrapStrictError(err, isStrict)
|
||||
}
|
||||
field.SetInt(intVal)
|
||||
// byte is an alias for uint8, so supporting uint8 breaks support for byte
|
||||
case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
||||
durationVal, err := key.Duration()
|
||||
// Skip zero value
|
||||
if err == nil && int(durationVal) > 0 {
|
||||
field.Set(reflect.ValueOf(durationVal))
|
||||
return nil
|
||||
}
|
||||
|
||||
uintVal, err := key.Uint64()
|
||||
if err != nil {
|
||||
return wrapStrictError(err, isStrict)
|
||||
}
|
||||
field.SetUint(uintVal)
|
||||
|
||||
case reflect.Float32, reflect.Float64:
|
||||
floatVal, err := key.Float64()
|
||||
if err != nil {
|
||||
return wrapStrictError(err, isStrict)
|
||||
}
|
||||
field.SetFloat(floatVal)
|
||||
case reflectTime:
|
||||
timeVal, err := key.Time()
|
||||
if err != nil {
|
||||
return wrapStrictError(err, isStrict)
|
||||
}
|
||||
field.Set(reflect.ValueOf(timeVal))
|
||||
case reflect.Slice:
|
||||
return setSliceWithProperType(key, field, delim, allowShadow, isStrict)
|
||||
default:
|
||||
return fmt.Errorf("unsupported type '%s'", t)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func parseTagOptions(tag string) (rawName string, omitEmpty bool, allowShadow bool) {
|
||||
opts := strings.SplitN(tag, ",", 3)
|
||||
rawName = opts[0]
|
||||
if len(opts) > 1 {
|
||||
omitEmpty = opts[1] == "omitempty"
|
||||
}
|
||||
if len(opts) > 2 {
|
||||
allowShadow = opts[2] == "allowshadow"
|
||||
}
|
||||
return rawName, omitEmpty, allowShadow
|
||||
}
|
||||
|
||||
func (s *Section) mapTo(val reflect.Value, isStrict bool) error {
|
||||
if val.Kind() == reflect.Ptr {
|
||||
val = val.Elem()
|
||||
}
|
||||
typ := val.Type()
|
||||
|
||||
for i := 0; i < typ.NumField(); i++ {
|
||||
field := val.Field(i)
|
||||
tpField := typ.Field(i)
|
||||
|
||||
tag := tpField.Tag.Get("ini")
|
||||
if tag == "-" {
|
||||
continue
|
||||
}
|
||||
|
||||
rawName, _, allowShadow := parseTagOptions(tag)
|
||||
fieldName := s.parseFieldName(tpField.Name, rawName)
|
||||
if len(fieldName) == 0 || !field.CanSet() {
|
||||
continue
|
||||
}
|
||||
|
||||
isAnonymous := tpField.Type.Kind() == reflect.Ptr && tpField.Anonymous
|
||||
isStruct := tpField.Type.Kind() == reflect.Struct
|
||||
if isAnonymous {
|
||||
field.Set(reflect.New(tpField.Type.Elem()))
|
||||
}
|
||||
|
||||
if isAnonymous || isStruct {
|
||||
if sec, err := s.f.GetSection(fieldName); err == nil {
|
||||
if err = sec.mapTo(field, isStrict); err != nil {
|
||||
return fmt.Errorf("error mapping field(%s): %v", fieldName, err)
|
||||
}
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
if key, err := s.GetKey(fieldName); err == nil {
|
||||
delim := parseDelim(tpField.Tag.Get("delim"))
|
||||
if err = setWithProperType(tpField.Type, key, field, delim, allowShadow, isStrict); err != nil {
|
||||
return fmt.Errorf("error mapping field(%s): %v", fieldName, err)
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// MapTo maps section to given struct.
|
||||
func (s *Section) MapTo(v interface{}) error {
|
||||
typ := reflect.TypeOf(v)
|
||||
val := reflect.ValueOf(v)
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
typ = typ.Elem()
|
||||
val = val.Elem()
|
||||
} else {
|
||||
return errors.New("cannot map to non-pointer struct")
|
||||
}
|
||||
|
||||
return s.mapTo(val, false)
|
||||
}
|
||||
|
||||
// MapTo maps section to given struct in strict mode,
|
||||
// which returns all possible error including value parsing error.
|
||||
func (s *Section) StrictMapTo(v interface{}) error {
|
||||
typ := reflect.TypeOf(v)
|
||||
val := reflect.ValueOf(v)
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
typ = typ.Elem()
|
||||
val = val.Elem()
|
||||
} else {
|
||||
return errors.New("cannot map to non-pointer struct")
|
||||
}
|
||||
|
||||
return s.mapTo(val, true)
|
||||
}
|
||||
|
||||
// MapTo maps file to given struct.
|
||||
func (f *File) MapTo(v interface{}) error {
|
||||
return f.Section("").MapTo(v)
|
||||
}
|
||||
|
||||
// MapTo maps file to given struct in strict mode,
|
||||
// which returns all possible error including value parsing error.
|
||||
func (f *File) StrictMapTo(v interface{}) error {
|
||||
return f.Section("").StrictMapTo(v)
|
||||
}
|
||||
|
||||
// MapTo maps data sources to given struct with name mapper.
|
||||
func MapToWithMapper(v interface{}, mapper NameMapper, source interface{}, others ...interface{}) error {
|
||||
cfg, err := Load(source, others...)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
cfg.NameMapper = mapper
|
||||
return cfg.MapTo(v)
|
||||
}
|
||||
|
||||
// StrictMapToWithMapper maps data sources to given struct with name mapper in strict mode,
|
||||
// which returns all possible error including value parsing error.
|
||||
func StrictMapToWithMapper(v interface{}, mapper NameMapper, source interface{}, others ...interface{}) error {
|
||||
cfg, err := Load(source, others...)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
cfg.NameMapper = mapper
|
||||
return cfg.StrictMapTo(v)
|
||||
}
|
||||
|
||||
// MapTo maps data sources to given struct.
|
||||
func MapTo(v, source interface{}, others ...interface{}) error {
|
||||
return MapToWithMapper(v, nil, source, others...)
|
||||
}
|
||||
|
||||
// StrictMapTo maps data sources to given struct in strict mode,
|
||||
// which returns all possible error including value parsing error.
|
||||
func StrictMapTo(v, source interface{}, others ...interface{}) error {
|
||||
return StrictMapToWithMapper(v, nil, source, others...)
|
||||
}
|
||||
|
||||
// reflectSliceWithProperType does the opposite thing as setSliceWithProperType.
|
||||
func reflectSliceWithProperType(key *Key, field reflect.Value, delim string) error {
|
||||
slice := field.Slice(0, field.Len())
|
||||
if field.Len() == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
var buf bytes.Buffer
|
||||
sliceOf := field.Type().Elem().Kind()
|
||||
for i := 0; i < field.Len(); i++ {
|
||||
switch sliceOf {
|
||||
case reflect.String:
|
||||
buf.WriteString(slice.Index(i).String())
|
||||
case reflect.Int, reflect.Int64:
|
||||
buf.WriteString(fmt.Sprint(slice.Index(i).Int()))
|
||||
case reflect.Uint, reflect.Uint64:
|
||||
buf.WriteString(fmt.Sprint(slice.Index(i).Uint()))
|
||||
case reflect.Float64:
|
||||
buf.WriteString(fmt.Sprint(slice.Index(i).Float()))
|
||||
case reflectTime:
|
||||
buf.WriteString(slice.Index(i).Interface().(time.Time).Format(time.RFC3339))
|
||||
default:
|
||||
return fmt.Errorf("unsupported type '[]%s'", sliceOf)
|
||||
}
|
||||
buf.WriteString(delim)
|
||||
}
|
||||
key.SetValue(buf.String()[:buf.Len()-1])
|
||||
return nil
|
||||
}
|
||||
|
||||
// reflectWithProperType does the opposite thing as setWithProperType.
|
||||
func reflectWithProperType(t reflect.Type, key *Key, field reflect.Value, delim string) error {
|
||||
switch t.Kind() {
|
||||
case reflect.String:
|
||||
key.SetValue(field.String())
|
||||
case reflect.Bool:
|
||||
key.SetValue(fmt.Sprint(field.Bool()))
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
key.SetValue(fmt.Sprint(field.Int()))
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
||||
key.SetValue(fmt.Sprint(field.Uint()))
|
||||
case reflect.Float32, reflect.Float64:
|
||||
key.SetValue(fmt.Sprint(field.Float()))
|
||||
case reflectTime:
|
||||
key.SetValue(fmt.Sprint(field.Interface().(time.Time).Format(time.RFC3339)))
|
||||
case reflect.Slice:
|
||||
return reflectSliceWithProperType(key, field, delim)
|
||||
default:
|
||||
return fmt.Errorf("unsupported type '%s'", t)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// CR: copied from encoding/json/encode.go with modifications of time.Time support.
|
||||
// TODO: add more test coverage.
|
||||
func isEmptyValue(v reflect.Value) bool {
|
||||
switch v.Kind() {
|
||||
case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
|
||||
return v.Len() == 0
|
||||
case reflect.Bool:
|
||||
return !v.Bool()
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return v.Int() == 0
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
return v.Uint() == 0
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return v.Float() == 0
|
||||
case reflect.Interface, reflect.Ptr:
|
||||
return v.IsNil()
|
||||
case reflectTime:
|
||||
t, ok := v.Interface().(time.Time)
|
||||
return ok && t.IsZero()
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (s *Section) reflectFrom(val reflect.Value) error {
|
||||
if val.Kind() == reflect.Ptr {
|
||||
val = val.Elem()
|
||||
}
|
||||
typ := val.Type()
|
||||
|
||||
for i := 0; i < typ.NumField(); i++ {
|
||||
field := val.Field(i)
|
||||
tpField := typ.Field(i)
|
||||
|
||||
tag := tpField.Tag.Get("ini")
|
||||
if tag == "-" {
|
||||
continue
|
||||
}
|
||||
|
||||
opts := strings.SplitN(tag, ",", 2)
|
||||
if len(opts) == 2 && opts[1] == "omitempty" && isEmptyValue(field) {
|
||||
continue
|
||||
}
|
||||
|
||||
fieldName := s.parseFieldName(tpField.Name, opts[0])
|
||||
if len(fieldName) == 0 || !field.CanSet() {
|
||||
continue
|
||||
}
|
||||
|
||||
if (tpField.Type.Kind() == reflect.Ptr && tpField.Anonymous) ||
|
||||
(tpField.Type.Kind() == reflect.Struct && tpField.Type.Name() != "Time") {
|
||||
// Note: The only error here is section doesn't exist.
|
||||
sec, err := s.f.GetSection(fieldName)
|
||||
if err != nil {
|
||||
// Note: fieldName can never be empty here, ignore error.
|
||||
sec, _ = s.f.NewSection(fieldName)
|
||||
}
|
||||
if err = sec.reflectFrom(field); err != nil {
|
||||
return fmt.Errorf("error reflecting field (%s): %v", fieldName, err)
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
// Note: Same reason as secion.
|
||||
key, err := s.GetKey(fieldName)
|
||||
if err != nil {
|
||||
key, _ = s.NewKey(fieldName, "")
|
||||
}
|
||||
if err = reflectWithProperType(tpField.Type, key, field, parseDelim(tpField.Tag.Get("delim"))); err != nil {
|
||||
return fmt.Errorf("error reflecting field (%s): %v", fieldName, err)
|
||||
}
|
||||
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ReflectFrom reflects secion from given struct.
|
||||
func (s *Section) ReflectFrom(v interface{}) error {
|
||||
typ := reflect.TypeOf(v)
|
||||
val := reflect.ValueOf(v)
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
typ = typ.Elem()
|
||||
val = val.Elem()
|
||||
} else {
|
||||
return errors.New("cannot reflect from non-pointer struct")
|
||||
}
|
||||
|
||||
return s.reflectFrom(val)
|
||||
}
|
||||
|
||||
// ReflectFrom reflects file from given struct.
|
||||
func (f *File) ReflectFrom(v interface{}) error {
|
||||
return f.Section("").ReflectFrom(v)
|
||||
}
|
||||
|
||||
// ReflectFrom reflects data sources from given struct with name mapper.
|
||||
func ReflectFromWithMapper(cfg *File, v interface{}, mapper NameMapper) error {
|
||||
cfg.NameMapper = mapper
|
||||
return cfg.ReflectFrom(v)
|
||||
}
|
||||
|
||||
// ReflectFrom reflects data sources from given struct.
|
||||
func ReflectFrom(cfg *File, v interface{}) error {
|
||||
return ReflectFromWithMapper(cfg, v, nil)
|
||||
}
|
||||
Loading…
Reference in New Issue