cobra note

package cmd

import (
	"log"

	"github.com/spf13/cobra"
	flag "github.com/spf13/pflag"
)

var Source string

// 这里初始化了flag 环境
var cliName = flag.StringP("name", "n", "Nick", "Input Your Name")
var cliAuthor = flag.StringP("author", "a", "nameOfAuthor", "Input Author Name")
var Verbose bool

var versionCmd = &cobra.Command{
	Use:   "version",
	Short: "A brief description of your command",
	Long: `A longer description that spans multiple lines and likely contains examples
and usage of using your command. For example:

Cobra is a CLI library for Go that empowers applications.
This application is a tool to generate the needed files
to quickly create a Cobra application.`,
	Run: func(cmd *cobra.Command, args []string) {
		log.Println("version 1.0")
		log.Println("Source===>", Source)

		// 这里需要提前准备上面的这两行代码
		// cmd.Flag("author") 这里有Lookup
		// var cliName = flag.StringP("name", "n", "Nick", "Input Your Name")
		// var cliAuthor = flag.StringP("author", "a", "nameOfAuthor", "Input Author Name")
		log.Println("cobra.command get cliName===>", cmd.Flag("author").Value)
		log.Println("cobra.command get cliAuthor===>", cmd.Flag("name").Value)

		log.Println("cliName===>", *cliName)
		log.Println("cliAuthor===>", *cliAuthor)
		log.Println(args)
	},
}

func init() {
	rootCmd.AddCommand(versionCmd)
	rootCmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "全局版本")
	versionCmd.Flags().StringVarP(&Source, "source", "s", "", "读取文件路径")
}

输出...,命令行参数[ag1 ag2 xx]和选项参数-s /tmp都能传进来用

... 找个能入门的...

了解cobra 先看看 pflag

main.go

package main

import (
	"cobhu/cmd"
)

func main() {
	cmd.Execute()
}

version.go