Golang DockerCli.HasExperimental方法代碼示例

// NewStartCommand creates a new cobra.Command for `docker start`
func NewStartCommand(dockerCli *command.DockerCli) *cobra.Command {
	var opts startOptions

	cmd := &cobra.Command{
		Use:   "start [OPTIONS] CONTAINER [CONTAINER...]",
		Short: "Start one or more stopped containers",
		Args:  cli.RequiresMinArgs(1),
		RunE: func(cmd *cobra.Command, args []string) error {
			opts.containers = args
			return runStart(dockerCli, &opts)
		},
	}

	flags := cmd.Flags()
	flags.BoolVarP(&opts.attach, "attach", "a", false, "Attach STDOUT/STDERR and forward signals")
	flags.BoolVarP(&opts.openStdin, "interactive", "i", false, "Attach container's STDIN")
	flags.StringVar(&opts.detachKeys, "detach-keys", "", "Override the key sequence for detaching a container")

	if dockerCli.HasExperimental() {
		flags.StringVar(&opts.checkpoint, "checkpoint", "", "Restore from this checkpoint")
		flags.StringVar(&opts.checkpointDir, "checkpoint-dir", "", "Use a custom checkpoint storage directory")
	}

	return cmd
}

func newDockerCommand(dockerCli *command.DockerCli) *cobra.Command {
	opts := cliflags.NewClientOptions()
	var flags *pflag.FlagSet

	cmd := &cobra.Command{
		Use:              "docker [OPTIONS] COMMAND [ARG...]",
		Short:            "A self-sufficient runtime for containers",
		SilenceUsage:     true,
		SilenceErrors:    true,
		TraverseChildren: true,
		Args:             noArgs,
		RunE: func(cmd *cobra.Command, args []string) error {
			if opts.Version {
				showVersion()
				return nil
			}
			cmd.SetOutput(dockerCli.Err())
			cmd.HelpFunc()(cmd, args)
			return nil
		},
		PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
			// flags must be the top-level command flags, not cmd.Flags()
			opts.Common.SetDefaultOptions(flags)
			dockerPreRun(opts)
			return dockerCli.Initialize(opts)
		},
	}
	cli.SetupRootCommand(cmd)

	cmd.SetHelpFunc(func(ccmd *cobra.Command, args []string) {
		var err error
		if dockerCli.Client() == nil {
			// flags must be the top-level command flags, not cmd.Flags()
			opts.Common.SetDefaultOptions(flags)
			dockerPreRun(opts)
			err = dockerCli.Initialize(opts)
		}
		if err != nil || !dockerCli.HasExperimental() {
			hideExperimentalFeatures(ccmd)
		}
		if err := ccmd.Help(); err != nil {
			ccmd.Println(err)
		}
	})

	flags = cmd.Flags()
	flags.BoolVarP(&opts.Version, "version", "v", false, "Print version information and quit")
	flags.StringVar(&opts.ConfigDir, "config", cliconfig.ConfigDir(), "Location of client config files")
	opts.Common.InstallFlags(flags)

	cmd.SetOutput(dockerCli.Out())
	cmd.AddCommand(newDaemonCommand())
	commands.AddCommands(cmd, dockerCli)

	return cmd
}

// AddCommands adds all the commands from cli/command to the root command
func AddCommands(cmd *cobra.Command, dockerCli *command.DockerCli) {
	cmd.AddCommand(
		node.NewNodeCommand(dockerCli),
		service.NewServiceCommand(dockerCli),
		swarm.NewSwarmCommand(dockerCli),
		container.NewContainerCommand(dockerCli),
		image.NewImageCommand(dockerCli),
		system.NewSystemCommand(dockerCli),
		container.NewRunCommand(dockerCli),
		image.NewBuildCommand(dockerCli),
		network.NewNetworkCommand(dockerCli),
		hide(system.NewEventsCommand(dockerCli)),
		registry.NewLoginCommand(dockerCli),
		registry.NewLogoutCommand(dockerCli),
		registry.NewSearchCommand(dockerCli),
		system.NewVersionCommand(dockerCli),
		volume.NewVolumeCommand(dockerCli),
		hide(system.NewInfoCommand(dockerCli)),
		hide(container.NewAttachCommand(dockerCli)),
		hide(container.NewCommitCommand(dockerCli)),
		hide(container.NewCopyCommand(dockerCli)),
		hide(container.NewCreateCommand(dockerCli)),
		hide(container.NewDiffCommand(dockerCli)),
		hide(container.NewExecCommand(dockerCli)),
		hide(container.NewExportCommand(dockerCli)),
		hide(container.NewKillCommand(dockerCli)),
		hide(container.NewLogsCommand(dockerCli)),
		hide(container.NewPauseCommand(dockerCli)),
		hide(container.NewPortCommand(dockerCli)),
		hide(container.NewPsCommand(dockerCli)),
		hide(container.NewRenameCommand(dockerCli)),
		hide(container.NewRestartCommand(dockerCli)),
		hide(container.NewRmCommand(dockerCli)),
		hide(container.NewStartCommand(dockerCli)),
		hide(container.NewStatsCommand(dockerCli)),
		hide(container.NewStopCommand(dockerCli)),
		hide(container.NewTopCommand(dockerCli)),
		hide(container.NewUnpauseCommand(dockerCli)),
		hide(container.NewUpdateCommand(dockerCli)),
		hide(container.NewWaitCommand(dockerCli)),
		hide(image.NewHistoryCommand(dockerCli)),
		hide(image.NewImagesCommand(dockerCli)),
		hide(image.NewImportCommand(dockerCli)),
		hide(image.NewLoadCommand(dockerCli)),
		hide(image.NewPullCommand(dockerCli)),
		hide(image.NewPushCommand(dockerCli)),
		hide(image.NewRemoveCommand(dockerCli)),
		hide(image.NewSaveCommand(dockerCli)),
		hide(image.NewTagCommand(dockerCli)),
		hide(system.NewInspectCommand(dockerCli)),
	)

	if dockerCli.HasExperimental() {
		cmd.AddCommand(
			stack.NewStackCommand(dockerCli),
			stack.NewTopLevelDeployCommand(dockerCli),
			checkpoint.NewCheckpointCommand(dockerCli),
			plugin.NewPluginCommand(dockerCli),
		)
	}

}

func newDockerCommand(dockerCli *command.DockerCli) *cobra.Command {
	opts := cliflags.NewClientOptions()
	var flags *pflag.FlagSet

	cmd := &cobra.Command{
		Use:              "docker [OPTIONS] COMMAND [ARG...]",
		Short:            "A self-sufficient runtime for containers",
		SilenceUsage:     true,
		SilenceErrors:    true,
		TraverseChildren: true,
		Args:             noArgs,
		RunE: func(cmd *cobra.Command, args []string) error {
			if opts.Version {
				showVersion()
				return nil
			}
			return dockerCli.ShowHelp(cmd, args)
		},
		PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
			// daemon command is special, we redirect directly to another binary
			if cmd.Name() == "daemon" {
				return nil
			}
			// flags must be the top-level command flags, not cmd.Flags()
			opts.Common.SetDefaultOptions(flags)
			dockerPreRun(opts)
			if err := dockerCli.Initialize(opts); err != nil {
				return err
			}
			return isSupported(cmd, dockerCli.Client().ClientVersion(), dockerCli.HasExperimental())
		},
	}
	cli.SetupRootCommand(cmd)

	cmd.SetHelpFunc(func(ccmd *cobra.Command, args []string) {
		if dockerCli.Client() == nil { // when using --help, PersistenPreRun is not called, so initialization is needed.
			// flags must be the top-level command flags, not cmd.Flags()
			opts.Common.SetDefaultOptions(flags)
			dockerPreRun(opts)
			dockerCli.Initialize(opts)
		}

		if err := isSupported(ccmd, dockerCli.Client().ClientVersion(), dockerCli.HasExperimental()); err != nil {
			ccmd.Println(err)
			return
		}

		hideUnsupportedFeatures(ccmd, dockerCli.Client().ClientVersion(), dockerCli.HasExperimental())

		if err := ccmd.Help(); err != nil {
			ccmd.Println(err)
		}
	})

	flags = cmd.Flags()
	flags.BoolVarP(&opts.Version, "version", "v", false, "Print version information and quit")
	flags.StringVar(&opts.ConfigDir, "config", cliconfig.ConfigDir(), "Location of client config files")
	opts.Common.InstallFlags(flags)

	cmd.SetOutput(dockerCli.Out())
	cmd.AddCommand(newDaemonCommand())
	commands.AddCommands(cmd, dockerCli)

	return cmd
}