Using ARG and CMD on same level with different flags.

[voler88]

Hi,
is it possible to achieve this, but disable flag for subcommand?

./main arg (allow)
./main -f arg (allow)
./main arg -f (allow)
./main sub-cmd (allow)
./main -f sub-cmd (disallow)
./main sub-cmd -f (disallow)

My try:

package main

import (
	"fmt"

	"github.com/alecthomas/kong"
)

type CLI struct {
	Cmd    Cmd    `cmd:"" embed:""`
	SubCmd SubCmd `cmd:""`
}

type Cmd struct {
	Flag bool `short:"f"`
	Arg  Arg  `          arg:""`
}

type Arg struct {
	Arg string `arg:""`
}

func (a Arg) Run(cli *CLI) error {
	fmt.Println("run cmd")
	fmt.Println("flag:", cli.Cmd.Flag)
	return nil
}

type SubCmd struct{}

func (s SubCmd) Run(cli *CLI) error {
	fmt.Println("run sub-cmd")
	fmt.Println("flag:", cli.Cmd.Flag)
	return nil
}

func main() {
	ctx := kong.Parse(new(CLI))
	ctx.FatalIfErrorf(ctx.Run())
}

Worked on cobra:

package main

import (
  "fmt"
  "os"

  "github.com/spf13/cobra"
)

var rootCmd = &cobra.Command{
  Use:  "cmd",
  Args: cobra.ExactArgs(1),
  Run: func(cmd *cobra.Command, args []string) {
    fmt.Println("run cmd")
    f, _ := cmd.Flags().GetBool("flag")
    fmt.Println("flag:", f)
  },
}

var subCmd = &cobra.Command{
  Use: "sub-cmd",
  Run: func(cmd *cobra.Command, args []string) {
    fmt.Println("run sub-cmd")
    f, _ := cmd.Flags().GetBool("flag")
    fmt.Println("flag:", f)
  },
}

func main() {
  rootCmd.Flags().BoolP("flag", "f", false, "")
  rootCmd.AddCommand(subCmd)
  if err := rootCmd.Execute(); err != nil {
    fmt.Fprintln(os.Stderr, err)
    os.Exit(1)
  }
}

[alecthomas]

No, that's not possible. Flags are always inherited.