package cli

import (
	"fmt"
	"io"
)

func Execute(app *App, args []string, stderr io.Writer) int {
	if stderr == nil {
		stderr = io.Discard
	}
	if app == nil {
		fmt.Fprintln(stderr, "application is not configured")
		return 1
	}

	if err := app.Run(args); err != nil {
		fmt.Fprintln(stderr, err)
		return 1
	}
	return 0
}