add new driver INI, add some demos, some logic update.

README.md

@@ -2,9 +2,9 @@
 
 [![GoDoc](https://godoc.org/github.com/gookit/config?status.svg)](https://godoc.org/github.com/gookit/config)
 
-golang application config manage implement. 
+golang application config manage tool library. 
 
-- support multi format: `JSON`(default), `YAML`, `TOML`, `HCL`
+- support multi format: `JSON`(default), `INI`, `YAML`, `TOML`, `HCL`
 - support multi file/data load
 - support data override merge
 - support get sub value by path, like `map.key` `arr.2`

config.go

@@ -12,9 +12,10 @@ const Version = "1.0.3"
 
 // supported config format
 const (
-	Json = "json"
+	Ini = "ini"
 	Hcl  = "hcl"
 	Yml  = "yml"
+	Json = "json"
 	Yaml = "yaml"
 	Toml = "toml"
 )

config_load.go

@@ -126,6 +126,10 @@ func (c *Config) parseSourceCode(format string, blob []byte) (err error) {
 	var decoder Decoder
 
 	switch format {
+	case Hcl:
+		decoder, ok = c.decoders[Hcl]
+	case Ini:
+		decoder, ok = c.decoders[Ini]
 	case Json:
 		decoder, ok = c.decoders[Json]
 	case Yaml, Yml:

doc.go

@@ -1,5 +1,5 @@
 /*
-golang application config manage implement. support YAML,TOML,JSON,HCL format.
+golang application config manage implement. support YAML,TOML,JSON,INI,HCL format.
 
 Source code and other details for the project are available at GitHub:
 

examples/ini.go

@@ -0,0 +1,57 @@
+// These are some sample code for YAML,TOML,JSON,INI,HCL
+package main
+
+import (
+	"github.com/gookit/config"
+	"github.com/gookit/config/ini"
+	"fmt"
+)
+
+// go run ./examples/ini.go
+func main()  {
+	config.SetOptions(&config.Options{
+		ParseEnv: true,
+	})
+
+	// add Decoder and Encoder
+	config.AddDriver(config.Ini, ini.Driver)
+	// Or
+	// config.DecoderEncoder(config.Ini, ini.Decoder, ini.Encoder)
+
+	err := config.LoadFiles("testdata/ini_base.ini")
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("config data: \n %#v\n", config.Data())
+
+	err = config.LoadFiles("testdata/ini_other.ini")
+	// config.LoadFiles("testdata/ini_base.ini", "testdata/ini_other.ini")
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("config data: \n %#v\n", config.Data())
+	fmt.Print("get config example:\n")
+
+	name, ok := config.GetString("name")
+	fmt.Printf("- get string\n ok: %v, val: %v\n", ok, name)
+
+	// NOTICE: ini is not support array
+
+	map1, ok := config.GetStringMap("map1")
+	fmt.Printf("- get map\n ok: %v, val: %#v\n", ok, map1)
+
+	val0, ok := config.GetString("map1.key")
+	fmt.Printf("- get sub-value by path 'map.key'\n ok: %v, val: %v\n", ok, val0)
+
+	// can parse env name(ParseEnv: true)
+	fmt.Printf("get env 'envKey' val: %s\n", config.DefString("envKey", ""))
+	fmt.Printf("get env 'envKey1' val: %s\n", config.DefString("envKey1", ""))
+
+	// set value
+	config.Set("name", "new name")
+	name, ok = config.GetString("name")
+	fmt.Printf("- set string\n ok: %v, val: %v\n", ok, name)
+
+}

ini/ini.go

@@ -0,0 +1,46 @@
+/*
+This is driver use INI format content as config source
+
+about ini parse, please see https://github.com/gookit/ini/parser
+ */
+package ini
+
+import (
+	"github.com/gookit/config"
+	"github.com/gookit/ini/parser"
+	"errors"
+)
+
+// Decoder the ini content decoder
+var Decoder config.Decoder = func(blob []byte, ptr interface{}) (err error) {
+	return parser.Decode(blob, ptr)
+}
+
+// Encoder encode data to ini content
+var Encoder config.Encoder = func(ptr interface{}) (out []byte, err error) {
+	err = errors.New("INI: is not support encode data to INI")
+	return
+}
+
+// Driver
+var Driver = &iniDriver{config.Ini}
+
+// iniDriver for ini format content
+type iniDriver struct {
+	name string
+}
+
+// Name
+func (d *iniDriver) Name() string {
+	return d.name
+}
+
+// GetDecoder for ini
+func (d *iniDriver) GetDecoder() config.Decoder {
+	return Decoder
+}
+
+// GetEncoder for ini
+func (d *iniDriver) GetEncoder() config.Encoder {
+	return Encoder
+}

testdata/ini_base.ini

@@ -0,0 +1,11 @@
+name = app
+debug = false
+baseKey = value
+age = 123
+envKey = ${SHELL}
+envKey1 = ${NotExist|defValue}
+
+[map1]
+key = val
+key1 = val1
+key2 = val2

testdata/ini_other.ini

@@ -0,0 +1,8 @@
+name = app2
+debug = false
+age = 12
+baseKey = value2
+
+[map1]
+key = val2
+key2 = val20