Golang cli.EvalPrintUsage函数代码示例

func createGroup(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 1) {
		return
	}

	wait, _ := cmd.Flags().GetBool(WAIT_FLAG)
	force, _ := cmd.Flags().GetBool(FORCE_FLAG)
	params, _ := cmd.Flags().GetStringSlice(PARAMS_FLAG)
	ignore, _ := cmd.Flags().GetBool(IGNORE_MISSING)
	options := &marathon.CreateOptions{Wait: wait, Force: force, ErrorOnMissingParams: !ignore}

	if params != nil {
		envmap := make(map[string]string)
		for _, p := range params {
			if strings.Contains(p, "=") {
				v := strings.Split(p, "=")
				envmap[v[0]] = v[1]
			}
		}
		options.EnvParams = envmap
	}

	result, e := client(cmd).CreateGroupFromFile(args[0], options)
	if e != nil && e == marathon.ErrorGroupExists {
		cli.Output(nil, fmt.Errorf("%s, consider using the --force flag to update when group exists", e.Error()))
		return
	}
	cli.Output(AppGroup{result}, e)
}

func createApp(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 1) {
		return
	}

	wait, _ := cmd.Flags().GetBool(WAIT_FLAG)
	force, _ := cmd.Flags().GetBool(FORCE_FLAG)
	paramsFile, _ := cmd.Flags().GetString(ENV_FILE_FLAG)
	params, _ := cmd.Flags().GetStringSlice(PARAMS_FLAG)
	ignore, _ := cmd.Flags().GetBool(IGNORE_MISSING)
	options := &marathon.CreateOptions{Wait: wait, Force: force, ErrorOnMissingParams: !ignore}

	if paramsFile != "" {
		envParams, _ := parseParamsFile(paramsFile)
		options.EnvParams = envParams
	} else {
		options.EnvParams = make(map[string]string)
	}

	if params != nil {
		for _, p := range params {
			if strings.Contains(p, "=") {
				v := strings.Split(p, "=")
				options.EnvParams[v[0]] = v[1]
			}
		}
	}

	result, e := client(cmd).CreateApplicationFromFile(args[0], options)
	if e != nil && e == marathon.ErrorAppExists {
		cli.Output(nil, errors.New(fmt.Sprintf("%s, consider using the --force flag to update when an application exists", e.Error())))
		return
	}
	cli.Output(Application{result}, e)
}

func destroyGroup(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 1) {
		return
	}
	v, e := client(cmd).DestroyGroup(args[0])
	cli.Output(DeploymentId{v}, e)
}

func appKillTask(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 1) {
		return
	}
	scale, _ := cmd.Flags().GetBool(SCALE_FLAG)
	v, e := client(cmd).KillAppTask(args[0], scale)
	cli.Output(Task{v}, e)
}

func getGroup(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 1) {
		return
	}

	v, e := client(cmd).GetGroup(args[0])
	cli.Output(AppGroup{v}, e)
}

func destroyApp(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 1) {
		return
	}

	v, e := client(cmd).DestroyApplication(args[0])
	cli.Output(DeploymentId{v}, e)
	waitForDeploymentIfFlagged(cmd, v.DeploymentID)
}

func convertFile(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 2) {
		return
	}
	if err := encoding.ConvertFile(args[0], args[1], &marathon.Application{}); err != nil {
		cli.Output(nil, err)
		return
	}
	fmt.Printf("Source file %s has been re-written into new format in %s\n\n", args[0], args[1])
}

func appKillAllTasks(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 1) {
		return
	}

	host, _ := cmd.Flags().GetString(HOST_FLAG)
	scale, _ := cmd.Flags().GetBool(SCALE_FLAG)

	v, e := client(cmd).KillAppTasks(args[0], host, scale)
	cli.Output(&Tasks{Tasks: v}, e)
}

func rollbackAppVersion(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 2) {
		return
	}

	wait, _ := cmd.Flags().GetBool(WAIT_FLAG)

	update := marathon.NewApplication(args[0]).RollbackVersion(args[1])
	v, e := client(cmd).UpdateApplication(update, wait)
	cli.Output(Application{v}, e)
}

func restartApp(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 1) {
		return
	}

	force, _ := cmd.Flags().GetBool(FORCE_FLAG)

	v, e := client(cmd).RestartApplication(args[0], force)
	cli.Output(DeploymentId{v}, e)
	waitForDeploymentIfFlagged(cmd, v.DeploymentID)
}

func scaleApp(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 2) {
		return
	}

	instances, err := strconv.Atoi(args[1])
	if err != nil {
		cli.Output(nil, err)
		return
	}
	v, e := client(cmd).ScaleApplication(args[0], instances)
	cli.Output(DeploymentId{v}, e)
	waitForDeploymentIfFlagged(cmd, v.DeploymentID)
}

func updateAppMemory(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 2) {
		return
	}

	wait, _ := cmd.Flags().GetBool(WAIT_FLAG)
	mem, err := strconv.ParseFloat(args[1], 64)

	if err != nil {
		cli.Output(nil, err)
		return
	}
	update := marathon.NewApplication(args[0]).Memory(mem)
	v, e := client(cmd).UpdateApplication(update, wait)
	cli.Output(Application{v}, e)
}

func appTasks(cmd *cobra.Command, args []string) {
	if cli.EvalPrintUsage(cmd.Usage, args, 1) {
		return
	}

	detailed, _ := cmd.Flags().GetBool(DETAIL_FLAG)

	v, e := client(cmd).GetTasks(args[0])

	if detailed && e == nil {
		fmt.Println("")
		for _, t := range v {
			fmt.Printf("::: Task: %s\n\n", t.ID)
			cli.Output(&Task{t}, e)
		}
	} else {
		cli.Output(&Tasks{Tasks: v}, e)
	}

}

See config's subcommands for available choices`,
}

var configEnvCmd = &cobra.Command{
	Use:   "env",
	Short: "Configuration environments define remote Marathon and other supported services by a name. ",
	Long: `Manage configuration environments (eg. default, list, adding and removing of environments)

See env's subcommands for available choices`,
}

var configRemoveCmd = &cobra.Command{
	Use:   "delete [name]",
	Short: "Remove a defined environment by it's [name]",
	Run: func(cmd *cobra.Command, args []string) {
		if cli.EvalPrintUsage(cmd.Usage, args, 1) {
			return
		}
		_, err := configFile.GetEnvironment(args[0])
		if err != nil {
			cli.Output(nil, err)
		} else {
			err := configFile.RemoveEnvironment(args[0], false)
			if err != nil {
				cli.Output(nil, err)
			}
		}
	},
}

var configAddCmd = &cobra.Command{