main.go

package main

import (
	"fmt"
	"os"

	"github.com/urfave/cli"
)

func cliInit() *cli.App {
	app := cli.NewApp()

	app.Name = "Phmod"
	app.Description = "Translator for chmod strings, both digit and char representations."
	app.Usage = "phmod [OPTION] <args>"
	app.Version = "1.0.0"

	app.Flags = []cli.Flag{
		cli.BoolFlag{
			Name:  "long, l",
			Usage: "Prints the result in verbose, human-readable format.",
		},
	}

	cli.AppHelpTemplate = `{{.Name}}{{if .Description}} - {{.Description}}{{end}}

{{if .Usage}}Usage: {{.Usage}}{{end}}

{{if .VisibleFlags}}Options:
{{range $index, $option := .VisibleFlags}}{{if $index}}
{{end}}{{$option}}{{end}}{{end}}
`

	app.Action = parse
	return app
}

func main() {
	app := cliInit()
	if err := app.Run(os.Args); err != nil {
		fmt.Println("Error - ", err, "\nUse -h for usage info")
		os.Exit(1)
	}
}