definitions.py

from egoist.app import App, SettingsDict

settings: SettingsDict = {"rootdir": "cmd/", "here": __file__}
app = App(settings)

app.include("egoist.directives.define_cli")


@app.define_cli("egoist.generators.clikit:walk")
def hello(*, name: str) -> None:
    """hello message"""
    from egoist.generators.clikit import runtime, clikit

    with runtime.generate(clikit):
        runtime.printf("hello %s\n", name)


if __name__ == "__main__":
    app.run()

main.go

package main

import (
	"flag"
	"fmt"
	"os"
	"log"
)

// this file is generated by egoist.generators.clikit

// Option ...
type Option struct {
	Name string // for `-name`
	Args []string // cmd.Args
}


func main() {
	opt := &Option{}
	cmd := flag.NewFlagSet("hello", flag.ContinueOnError)
	cmd.Usage = func() {
		fmt.Fprintln(cmd.Output(), `hello - hello message`)
		fmt.Fprintln(cmd.Output(), "")
		fmt.Fprintln(cmd.Output(), "Usage:")
		cmd.PrintDefaults()
	}
	cmd.StringVar(&opt.Name, "name", "", "-")

	if err := cmd.Parse(os.Args[1:]); err != nil {
		if err != flag.ErrHelp {
			cmd.Usage()
		}
		os.Exit(1)
	}
	opt.Args = cmd.Args()
	if err := run(opt); err != nil {
		log.Fatalf("!!%+v", err)
	}
}

func run(opt *Option) error {
	fmt.Printf("hello %s\n", opt.Name)
	return nil
}