func main() {
// init cli app
cli := clif.New("my-app", "Demo for using config", "1.2.3").SetDescription(description)
// add a default option, which registers a new object in the injection container
cli.AddDefaultOptions(
clif.NewOption("config", "c", "Path to config", "fixtures/config.json", true, false).SetSetup(func(name, value string) (string, error) {
conf := &MyConfig{make(map[string]string)}
if raw, err := ioutil.ReadFile(value); err != nil {
return "", fmt.Errorf("Could not read config file %s: %s", value, err)
} else if err = json.Unmarshal(raw, &conf.Data); err != nil {
return "", fmt.Errorf("Could not unmarshal config file %s: %s", value, err)
} else if _, ok := conf.Data["name"]; !ok {
return "", fmt.Errorf("Config %s is missing \"name\"", value)
} else {
cli.Register(conf)
return value, nil
}
}),
)
// add command which uses the late injected configf
cli.Add(clif.NewCommand("xxx", "Call xxx", func(c *clif.Command, foo *MyConfig, out clif.Output) {
out.Printf("Hello there: <success>%s<reset>\n", foo.Data["name"])
}))
// add another ocmmand, using the config as well
cli.Add(clif.NewCommand("yyy", "Call yyy", func(c *clif.Command, foo *MyConfig, out clif.Output) {
out.Printf("Hello there: <success>%s<reset>\n", foo.Data["name"])
}))
cli.Run()
}
func main() {
setStyle(os.Getenv("CLI_STYLE"), nil)
// extend output styles
clif.DefaultStyles["mine"] = "\033[32;1m"
// initialize the app with custom registered objects in the injection container
c := clif.New("My App", "1.0.0", "An example application").
Register(&exampleStruct{"bar1"}).
RegisterAs(reflect.TypeOf((*exampleInterface)(nil)).Elem().String(), &exampleStruct{"bar2"}).
New("hello", "The obligatory hello world", callHello)
styleArg := clif.NewArgument("style", "Name of a style. Available: default, sunburn, winter", "default", true, false).
SetParse(func(name, value string) (string, error) { setStyle(value, c); return value, nil })
c.Add(clif.NewCommand("styles", "Print all color style tokens", callStyles).AddArgument(styleArg))
// customize error handler
clif.Die = func(msg string, args ...interface{}) {
c.Output().Printf("<error>Everyting went wrong: %s<reset>\n\n", fmt.Sprintf(msg, args...))
clif.Exit(1)
}
// build & add a complex command
cmd := clif.NewCommand("foo", "It does foo", callFoo).
NewArgument("name", "Name for greeting", "", true, false).
NewArgument("more-names", "And more names for greeting", "", false, true).
NewOption("whatever", "w", "Some required option", "", true, false)
cnt := clif.NewOption("counter", "c", "Show how high you can count", "", false, false)
cnt.SetParse(clif.IsInt)
cmd.AddOption(cnt)
c.Add(cmd)
cb := func(c *clif.Command, out clif.Output) {
out.Printf("Called %s\n", c.Name)
}
c.New("bar:baz", "A grouped command", cb).
New("bar:zoing", "Another grouped command", cb).
New("hmm:huh", "Yet another grouped command", cb).
New("hmm:uhm", "And yet another grouped command", cb)
// execute the main loop
c.Run()
}