root.go

package cmd

import (
	"fmt"
	"log"
	"os"

	"github.com/jenkins-zh/jenkins-cli/app"
	"github.com/spf13/cobra"
)

// RootOptions is a global option for whole cli
type RootOptions struct {
	Jenkins string
	Version bool
	Debug   bool
}

var rootCmd = &cobra.Command{
	Use:   "jcli",
	Short: "jcli is a tool which could help you with your multiple Jenkins",
	Long: `jcli is Jenkins CLI which could help with your multiple Jenkins,
				  Manage your Jenkins and your pipelines
				  More information could found at https://jenkins-zh.cn`,
	Run: func(_ *cobra.Command, _ []string) {
		fmt.Println("Jenkins CLI (jcli) manage your Jenkins")

		current := getCurrentJenkinsFromOptionsOrDie()
		if current != nil {
			fmt.Println("Current Jenkins is:", current.Name)
		} else {
			fmt.Println("Cannot found the configuration")
		}

		if rootOptions.Version {
			fmt.Printf("Version: %s\n", app.GetVersion())
			fmt.Printf("Commit: %s\n", app.GetCommit())
		}
	},
}

func Execute() {
	if err := rootCmd.Execute(); err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
}

var rootOptions RootOptions

func init() {
	cobra.OnInitialize(initConfig)
	rootCmd.PersistentFlags().StringVarP(&rootOptions.Jenkins, "jenkins", "j", "", "Select a Jenkins server for this time")
	rootCmd.PersistentFlags().BoolVarP(&rootOptions.Version, "version", "v", false, "Print the version of Jenkins CLI")
	rootCmd.PersistentFlags().BoolVarP(&rootOptions.Debug, "debug", "", false, "Print the output into debug.html")
}

func initConfig() {
	if err := loadDefaultConfig(); err != nil {
		if os.IsNotExist(err) {
			log.Printf("No config file found.")
			return
		}

		log.Fatalf("Config file is invalid: %v", err)
	}
}

func getCurrentJenkinsFromOptions() (jenkinsServer *JenkinsServer) {
	jenkinsOpt := rootOptions.Jenkins
	if jenkinsOpt == "" {
		jenkinsServer = getCurrentJenkins()
	} else {
		jenkinsServer = findJenkinsByName(jenkinsOpt)
	}
	return
}

func getCurrentJenkinsFromOptionsOrDie() (jenkinsServer *JenkinsServer) {
	if jenkinsServer = getCurrentJenkinsFromOptions(); jenkinsServer == nil {
		log.Fatal("Cannot found Jenkins by", rootOptions.Jenkins) // TODO not accurate
	}
	return
}