eltonpgoncalves / cli Goto Github PK

import "github.com/kataras/cli"

func main() {
  cli.NewApp("httpserver", "converts current directory into http server", "0.0.1").
  Flag("directory", "C:/users/myfiles", "specify a directory to convert").
  Run(func(cli.Flags) error {
    return nil
  })
}

// NewApp creates and returns a new cli App instance
//
// example:
// app := cli.NewApp("iris", "Command line tool for Iris web framework", "0.0.1")
NewApp(name string, description string, version string) *App

package main

import (
	"fmt"
	"github.com/kataras/cli"
)

func main() {
	app := cli.NewApp("httpserver", "converts current directory into http server", "0.0.1")

    // $executable -d, $executable --directory $the_dir
	app.Flag("directory", "C:/users/myfiles", "specify a current working directory")

    //  $executable listen
	listenCommand := cli.Command("listen", "starts the server")

    // $executable listen -h, $executable listen --host $the_host
	listenCommand.Flag("host", "127.0.0.1", "specify an address listener")   
    // $executable listen -p, $executable listen --port $the_port   
	listenCommand.Flag("port", 8080, "specify a port to listen")   
    // $executable listen -d, $executable listen --dir $the_dir     
	listenCommand.Flag("dir", "", "current working directory")    
    // $executable listen -r , $executable listen --req $the_req              
	listenCommand.Flag("req", nil, "a required flag because nil default given")

	listenCommand.Action(listen)

	app.Command(listenCommand) //register the listenCommand to the app.

	app.Run(run)
}

// httpserver -d C:/web/site
func run(args cli.Flags) error {
  // if the app has flags then 'run' will do its job as action, not as monitor
  fmt.Printf("Executing from global app's flag -d/-directory = %s\n ", args.String("directory"))

  // you can also run a command by code, listenCommand.Execute()
  return nil
}

// httpserver listen -h mydomain.com
func listen(args cli.Flags) error {
  fmt.Printf("Executing from command listen with Host: %s and Port: %d \n",
    args.String("host"), args.Int("port"))
  return nil
}