cocap10

// Create staert object
s:=staert.NewStaert(command)

// Adding sources
s.AddSource(toml)
s.AddSource(f)
s.AddSource(kv)

// Parse and merge sources
loadedConfig, err := s.LoadConfig()

cocap10

# This is a TOML document.

LogLevel = "DEBUG"
Timeout = "2s"

[owner]
name = "Tom Preston-Werner"
DateOfBirth = 1979-05-27T07:32:00-08:00
Rate = 0.75

cocap10

// TOML source
toml:=staert.NewTomlSource("example", []string{"./toml/", "/any/other/path"})
// Flaeg source
f:=flaeg.New(command, os.Args[1:])
// Key-Value Store source
kv, err :=staert.NewKvSource(backend, options, “prefix”)

cocap10

$ ./flaegdemo version
Version Rebloch

cocap10

f := flaeg.New(flaegCmd, os.Args[1:])
	if err := f.Run(); err != nil {
		fmt.Println(err.Error())
	}

cocap10

$ ./flaegdemo
{"VersionName":"Rebloch","LogLevel":"INFO","Timeout":1000000000,"Db":null,"Owner":{"Name":"default owner","DateOfBirth":"2016-08-03T17:36:20.85900754+02:00","Rate":0.5}}

$ ./flaegdemo --db
{"VersionName":"Rebloch","LogLevel":"INFO","Timeout":1000000000,"Db":{"ConnectionMax":100,"ConnectionMax64":6400000000000000000,"Watch":true,"IP":"192.168.0.1"},"Owner":{"Name":"default owner","DateOfBirth":"2016-08-03T17:36:33.683130019+02:00","Rate":0.5}}

$ ./flaegdemo --db.ip=127.0.0.1 --owner.dob=1979-05-27T07:32:00Z
{"VersionName":"Rebloch","LogLevel":"INFO","Timeout":1000000000,"Db":{"ConnectionMax":100,"ConnectionMax64":6400000000000000000,"Watch":true,"IP":"127.0.0.1"},"Owner":{"Name":"default owner","DateOfBirth":"1979-05-27T07:32:00Z","Rate":0.5}}

cocap10

	f.AddCommand(flaegVersionCmd)

cocap10

$ ./flaegdemo --help
flaegdemo is a golang program...(here the program description)
	
Usage: flaegdemo [--flag=flag_argument] [-f[flag_argument]] ...     set flag_argument to flag(s)
   or: flaegdemo [--flag[=true|false| ]] [-f[true|false| ]] ...     set true/false to boolean flag(s)

Available Commands:
	version                                            Print version
Use "flaegdemo [command] --help" for more information about a command.

cocap10

//Configuration is a struct which contains all differents type to field
//using parsers on string, time.Duration, pointer, bool, int, int64, time.Time, float64
type Configuration struct {
	VersionName string        //no description struct tag, it will not be flaged
	LogLevel    string        `short:"l" description:"Log level"`      //string type field, short flag "-l"
	Timeout     time.Duration `description:"Timeout duration"`         //time.Duration type field
	Db          *DatabaseInfo `description:"Enable database"`          //pointer type field (on DatabaseInfo)
	Owner       *OwnerInfo    `description:"Enable Owner description"` //another pointer type field (on OwnerInfo)
}

cocap10

flaegCmd := &flaeg.Command{
	Name:                  "flaegdemo",
	Description:           "flaegdemo is a golang program...(here the program description)",
	Config:                &config,
	DefaultPointersConfig: &defaultConfigOfPointerFields,
	Run: func() error {
		printableConfig, _ := json.Marshal(config)
		fmt.Printf("%s\n", printableConfig)
		return nil
	},