little

command.go

@@ -25,6 +25,8 @@ type (
 		Args Args     // must be initialized to cli.Args{} if arguments expected
 		Env  []string // env vars not used for local flags
 
+		Chosen *Command // chosen command
+
 		// User options
 
 		Name        string // comma separated list of aliases
@@ -186,6 +188,7 @@ func (c *Command) run(args, env []string) (err error) {
 		}
 
 		if sub := c.Command(arg); sub != nil {
+			c.Chosen = sub
 			err = sub.run(args, c.Env)
 
 			return errors.WrapNoCaller(err, MainName(arg))

flag/flag.go

@@ -82,7 +82,6 @@ func New(name string, val interface{}, help string, opts ...Option) (f *Flag) {
 	case []string:
 		f.Action = ParseStringSlice
 	case Setter:
-		f.Value = nil
 		f.Action = ParseSetter(val, true, false)
 	default:
 		panic(fmt.Sprintf("unsupported value type: %T", val))

flag/flag_options.go → flag/options.go

@@ -6,6 +6,12 @@ import (
 	"github.com/nikandfor/errors"
 )
 
+func Default(v interface{}) Option {
+	return func(f *Flag) {
+		f.Value = v
+	}
+}
+
 func Hidden(f *Flag) {
 	f.Hidden = true
 }