Example of a command-line projects main() function.

main-example.go

// main runs the command-line parsing and validations. This function will also start the application logic execution.
func main() {
	// Parse command-line arguments
	var opts options
	args, err := flags.ParseArgs(&opts, os.Args[1:])
	if err != nil {
		os.Exit(1)
	}

	// Convert to internal config
	cfg := config.New()
	cfg.Verbose = opts.Verbose
  	// more taking command line options and putting them into a config struct.

	if opts.Pass {
		// ask the user for a password
	}

	// Run the App
	err = app.Run(cfg)
	if err != nil {
		// do stuff
		os.Exit(1)
	}
}