github.com/gookit/config

config

Golang application config manage tool library.

中文说明

• Support multi format: JSON(default), INI, YAML, TOML, HCL
  • JSON content support comments. will auto clear comments
• Support multi-file and multi-data loading
• Support for loading configuration data from remote URLs
• Support for setting configuration data from command line arguments(flags)
• Support data overlay and merge, automatically load by key when loading multiple copies of data
• Support get sub value by path, like map.key arr.2
• Support parse ENV name. like envKey: ${SHELL} -> envKey: /bin/zsh
• Generic api Get Int String Bool Ints IntMap Strings StringMap ...
• complete unit test(code coverage > 95%)

Only use INI

If you just want to use INI for simple config management, recommended use gookit/ini

GoDoc

• godoc for github

Usage

Here using the yaml format as an example(testdata/yml_other.yml):

name: app2
debug: false
baseKey: value2
shell: ${SHELL}
envKey1: ${NotExist|defValue}

map1:
    key: val2
    key2: val20

arr1:
    - val1
    - val21

Load data

examples code please see _examples/yaml.go:

package main

import (
    "github.com/gookit/config"
    "github.com/gookit/config/yaml"
)

// go run ./examples/yaml.go
func main() {
	config.WithOptions(config.ParseEnv)
	
	// add driver for support yaml content
	config.AddDriver(yaml.Driver)
	// config.SetDecoder(config.Yaml, yaml.Decoder)

	err := config.LoadFiles("testdata/yml_base.yml")
	if err != nil {
		panic(err)
	}

	// fmt.Printf("config data: \n %#v\n", config.Data())

	// load more files
	err = config.LoadFiles("testdata/yml_other.yml")
	// can also load multi at once
	// err := config.LoadFiles("testdata/yml_base.yml", "testdata/yml_other.yml")
	if err != nil {
		panic(err)
	}
}

Read data

• get integer

age, ok := config.Int("age")
fmt.Print(ok, age) // true 100

• Get bool

val, ok := config.Bool("debug")
fmt.Print(ok, val) // true true

• Get string

name, ok := config.String("name")
fmt.Print(ok, name) // true inhere

• Get strings(slice)

arr1, ok := config.Strings("arr1")
fmt.Printf("%v %#v", ok, arr1) // true []string{"val1", "val21"}

• Get string map

val, ok := config.StringMap("map1")
fmt.Printf("%v %#v",ok, val) // true map[string]string{"key":"val2", "key2":"val20"}

• Value contains ENV var

value, ok := config.String("shell")
fmt.Print(ok, value) // true /bin/zsh

• Get value by key path

// from array
value, ok := config.String("arr1.0")
fmt.Print(ok, value) // true "val1"

// from map
value, ok := config.String("map1.key")
fmt.Print(ok, value) // true "val2"

• Setting new value

// set value
config.Set("name", "new name")
name, ok = config.String("name")
fmt.Print(ok, name) // true "new name"

API Methods Refer

Load Config

• LoadData(dataSource ...interface{}) (err error) Load from struts or maps
• LoadFlags(keys []string) (err error) Load from cli flags
• LoadExists(sourceFiles ...string) (err error)
• LoadFiles(sourceFiles ...string) (err error)
• LoadRemote(format, url string) (err error)
• LoadSources(format string, src []byte, more ...[]byte) (err error)
• LoadStrings(format string, str string, more ...string) (err error)

Getting Values

DefXXX get value with default value

• Bool(key string) (value bool, ok bool)
• DefBool(key string, defVal ...bool) bool
• Int(key string) (value int, ok bool)
• DefInt(key string, defVal ...int) int
• Int64(key string) (value int64, ok bool)
• DefInt64(key string, defVal ...int64)
• Ints(key string) (arr []int, ok bool)
• IntMap(key string) (mp map[string]int, ok bool)
• Float(key string) (value float64, ok bool)
• DefFloat(key string, defVal ...float64) float64
• String(key string) (value string, ok bool)
• DefString(key string, defVal ...string) string
• Strings(key string) (arr []string, ok bool)
• StringMap(key string) (mp map[string]string, ok bool)
• Get(key string, findByPath ...bool) (value interface{}, ok bool)

Setting Values

• Set(key string, val interface{}, setByPath ...bool) (err error)

Useful Methods

• AddDriver(driver Driver)
• Data() map[string]interface{}
• DumpTo(out io.Writer, format string) (n int64, err error)

Run Tests

go test -cover
// contains all sub-folder
go test -cover ./...

Related Packages

• Ini parse gookit/ini/parser
• Ini config gookit/ini
• Yaml parse go-yaml
• Toml parse go toml
• Data merge mergo

Ini Config Use

• gookit/ini ini config manage

License

MIT