version是一个子命令,用于输出版本号
代码
package main
import (
"fmt"
"os"
"github.com/spf13/cobra"
)
// 创建一个命令
var rootCmd = &cobra.Command{
Use: "example",
Short: "An example CLI application",
Long: "A detailed description of the CLI application",
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("Hello, World!")
},
}
// 添加子命令
func init() {
rootCmd.AddCommand(versionCmd)
}
// 创建一个子命令
var versionCmd = &cobra.Command{
Use: "version",
Short: "Print the version number of the CLI application",
Long: "All software has versions. This is CLI application's",
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("1.0.0")
},
}
func main() {
if err := rootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}