[Golang] Create Your Own CLI — With Golang

Bạn muốn viết 1 tool command như bạn chỉ biết golang.
Ahihi quá easy

https://itnext.io/how-to-create-your-own-cli-with-golang-3c50727ac608

package main

import (
  "fmt"
  "github.com/urfave/cli"
  "log"
  "os"
  "strings"
)

var app = cli.NewApp()

func info() {
  app.Name = "Simple pizza CLI"
  app.Usage = "An example CLI for ordering pizza's"
  app.Author = "Jeroenouw"
  app.Version = "1.0.0"
}

var pizza = []string{"Enjoy your pizza with some delicious"}

func commands() {
  app.Commands = []cli.Command{
    {
      Name:    "peppers",
      Aliases: []string{"p"},
      Usage:   "Add peppers to your pizza",
      Action: func(c *cli.Context) {
        pe := "peppers"
        peppers := append(pizza, pe)
        m := strings.Join(peppers, " ")
        fmt.Println(m)
      },
    },
    {
      Name:    "pineapple",
      Aliases: []string{"pa"},
      Usage:   "Add pineapple to your pizza",
      Action: func(c *cli.Context) {
        pa := "pineapple"
        pineapple := append(pizza, pa)
        m := strings.Join(pineapple, " ")
        fmt.Println(m)
      },
    },
    {
      Name:    "cheese",
      Aliases: []string{"c"},
      Usage:   "Add cheese to your pizza",
      Action: func(c *cli.Context) {
        ch := "cheese"
        cheese := append(pizza, ch)
        m := strings.Join(cheese, " ")
        fmt.Println(m)
      },
    },
  }
}

func main() {
  info()
  commands()

  err := app.Run(os.Args)
  if err != nil {
    log.Fatal(err)
  }
}