Golang Command.Out方法代码示例

func inspectImages(ctx *cobra.Command, args []string) {
	if len(args) < 1 {
		ErrorExit(ctx, "Needs an argument <NAME[:TAG]|ID> at least to inspect")
	}

	docker, err := client.NewDockerClient(configPath, hostName, ctx.Out())
	if err != nil {
		log.Fatal(err)
	}

	var images []api.ImageInfo
	var gotError = false

	for _, name := range args {
		if imageInfo, err := docker.InspectImage(name); err != nil {
			log.Error(err)
			gotError = true
		} else {
			images = append(images, *imageInfo)
		}
	}

	if len(images) > 0 {
		if err := FormatPrint(ctx.Out(), images); err != nil {
			log.Fatal(err)
		}
	}

	if gotError {
		log.Fatal("Error: failed to inspect one or more images")
	}
}

func inspectVolumes(ctx *cobra.Command, args []string) {
	if len(args) < 1 {
		ErrorExit(ctx, "Needs an argument <ID|CONTAINER-NAME:PATH> at least to inspect")
	}

	volumes, err := getVolumes(ctx)
	if err != nil {
		log.Fatal(err)
	}

	var _volumes Volumes
	var gotError = false

	for _, arg := range args {
		if volume := volumes.Find(arg); volume == nil {
			log.Errorf("No such volume: %s", arg)
			gotError = true
		} else {
			_volumes = append(_volumes, volume)
		}
	}

	if len(_volumes) > 0 {
		if err := FormatPrint(ctx.Out(), _volumes); err != nil {
			log.Fatal(err)
		}
	}

	if gotError {
		log.Fatal("Error: failed to inspect one or more volumes")
	}
}

func tagImage(ctx *cobra.Command, args []string) {
	if len(args) < 2 {
		ErrorExit(ctx, "Needs two arguments <NAME[:TAG]|ID> <NEW-NAME[:TAG]>")
	}

	reg, name, tag, err := client.ParseRepositoryName(args[1])
	if err != nil {
		log.Fatal(err)
	}

	if reg != "" {
		name = reg + "/" + name
	}

	docker, err := client.NewDockerClient(configPath, hostName, ctx.Out())
	if err != nil {
		log.Fatal(err)
	}

	if err := docker.TagImage(args[0], name, tag, boolForce); err != nil {
		log.Fatal(err)
	}

	ctx.Printf("Tagged %s as %s:%s\n", args[0], name, tag)
}

func inspectContainers(ctx *cobra.Command, args []string) {
	if len(args) < 1 {
		ErrorExit(ctx, "Needs an argument <NAME|ID> at least to inspect")
	}

	docker, err := client.NewDockerClient(configPath, hostName, ctx.Out())
	if err != nil {
		log.Fatal(err)
	}

	var containers []api.ContainerInfo
	var gotError = false

	for _, name := range args {
		if containerInfo, err := docker.InspectContainer(name); err != nil {
			log.Error(err)
			gotError = true
		} else {
			containers = append(containers, *containerInfo)
		}
	}

	if len(containers) > 0 {
		if err := FormatPrint(ctx.Out(), containers); err != nil {
			log.Fatal(err)
		}
	}

	if gotError {
		log.Fatal("Error: failed to inspect one or more containers")
	}
}

func checkChaincodeCmdParams(cmd *cobra.Command) error {

	if chaincodeName == undefinedParamValue {
		if chaincodePath == undefinedParamValue {
			err := fmt.Sprintf("Error: must supply value for %s path parameter.\n", chainFuncName)
			cmd.Out().Write([]byte(err))
			cmd.Usage()
			return errors.New(err)
		}
	}

	if chaincodeCtorJSON != "{}" {
		// Check to ensure the JSON has "function" and "args" keys
		input := &pb.ChaincodeMessage{}
		jsonerr := json.Unmarshal([]byte(chaincodeCtorJSON), &input)
		if jsonerr != nil {
			err := fmt.Sprintf("Error: must supply 'function' and 'args' keys in %s constructor parameter.\n", chainFuncName)
			cmd.Out().Write([]byte(err))
			cmd.Usage()
			return errors.New(err)
		}
	}

	return nil
}

func (c *certCommander) certList(cmd *cobra.Command, args []string) error {
	if len(args) > 0 {
		cmd.Usage()
		return fmt.Errorf("")
	}
	config, err := c.configGetter()
	if err != nil {
		return err
	}

	trustDir := config.GetString("trust_dir")
	certPath := filepath.Join(trustDir, notary.TrustedCertsDir)
	// Load all individual (non-CA) certificates that aren't expired and don't use SHA1
	certStore, err := trustmanager.NewX509FilteredFileStore(
		certPath,
		trustmanager.FilterCertsExpiredSha1,
	)
	if err != nil {
		return fmt.Errorf("Failed to create a new truststore with directory: %s", trustDir)
	}

	trustedCerts := certStore.GetCertificates()

	cmd.Println("")
	prettyPrintCerts(trustedCerts, cmd.Out())
	cmd.Println("")
	return nil
}

func pullImage(ctx *cobra.Command, args []string) {
	if len(args) < 1 {
		ErrorExit(ctx, "Needs an argument <NAME[:TAG]> to pull")
	}

	reg, name, tag, err := client.ParseRepositoryName(args[0])
	if err != nil {
		log.Fatal(err)
	}

	repository := name + ":" + tag

	if boolAll {
		repository = name
	}

	if reg != "" {
		repository = reg + "/" + repository
	}

	docker, err := client.NewDockerClient(configPath, hostName, ctx.Out())
	if err != nil {
		log.Fatal(err)
	}

	if _, err := docker.PullImage(repository); err != nil {
		log.Fatal(err)
	}
}

func setupAppConfig(f *clientcmd.Factory, out io.Writer, c *cobra.Command, args []string, config *newcmd.AppConfig) error {
	namespace, _, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	dockerClient, _, err := dockerutil.NewHelper().GetClient()
	if err == nil {
		if err = dockerClient.Ping(); err == nil {
			config.SetDockerClient(dockerClient)
		}
	}
	if err != nil {
		glog.V(2).Infof("No local Docker daemon detected: %v", err)
	}

	osclient, _, err := f.Clients()
	if err != nil {
		return err
	}
	config.SetOpenShiftClient(osclient, namespace)
	config.Out = out
	config.ErrOut = c.Out()

	unknown := config.AddArguments(args)
	if len(unknown) != 0 {
		return cmdutil.UsageError(c, "Did not recognize the following arguments: %v", unknown)
	}

	if config.AllowMissingImages && config.AsSearch {
		return cmdutil.UsageError(c, "--allow-missing-images and --search are mutually exclusive.")
	}
	return nil
}

// Complete sets any default behavior for the command
func (o *NewAppOptions) Complete(commandName string, f *clientcmd.Factory, c *cobra.Command, args []string, out io.Writer) error {
	o.Out = out
	o.ErrOut = c.Out()
	o.Output = kcmdutil.GetFlagString(c, "output")
	// Only output="" should print descriptions of intermediate steps. Everything
	// else should print only some specific output (json, yaml, go-template, ...)
	if len(o.Output) == 0 {
		o.Config.Out = o.Out
	} else {
		o.Config.Out = ioutil.Discard
	}
	o.Config.ErrOut = o.ErrOut

	o.Action.Out, o.Action.ErrOut = o.Out, o.ErrOut
	o.Action.Bulk.Mapper = clientcmd.ResourceMapper(f)
	o.Action.Bulk.Op = configcmd.Create
	// Retry is used to support previous versions of the API server that will
	// consider the presence of an unknown trigger type to be an error.
	o.Action.Bulk.Retry = retryBuildConfig

	o.Config.DryRun = o.Action.DryRun

	o.CommandPath = c.CommandPath()
	o.CommandName = commandName
	mapper, _ := f.Object(false)
	o.PrintObject = cmdutil.VersionedPrintObject(f.PrintObject, c, mapper, out)
	o.LogsForObject = f.LogsForObject
	if err := CompleteAppConfig(o.Config, f, c, args); err != nil {
		return err
	}
	if err := setAppConfigLabels(c, o.Config); err != nil {
		return err
	}
	return nil
}

func (t *tufCommander) tufList(cmd *cobra.Command, args []string) error {
	if len(args) < 1 {
		cmd.Usage()
		return fmt.Errorf("Must specify a GUN")
	}
	config, err := t.configGetter()
	if err != nil {
		return err
	}
	gun := args[0]

	rt, err := getTransport(config, gun, true)
	if err != nil {
		return err
	}

	nRepo, err := notaryclient.NewNotaryRepository(
		config.GetString("trust_dir"), gun, getRemoteTrustServer(config), rt, t.retriever)
	if err != nil {
		return err
	}

	// Retrieve the remote list of signed targets, prioritizing the passed-in list over targets
	roles := append(t.roles, data.CanonicalTargetsRole)
	targetList, err := nRepo.ListTargets(roles...)
	if err != nil {
		return err
	}

	prettyPrintTargets(targetList, cmd.Out())
	return nil
}

func runScramble(cmd *cobra.Command, args []string) {
	globalFlags(cmd)

	t1 := time.Now()
	dir, err := ioutil.ReadDir(filepath.Join(graphdir, "graph"))
	if err != nil {
		logrus.Fatalf("Error reading graph dir: %s", err)
	}
	var ids = []string{}
	for _, v := range dir {
		id := v.Name()
		if len(id) != 64 {
			logrus.Debugf("Skipping: %s", v.Name())
			continue
		}

		cacheDir, err := getCacheDir(id)
		if err != nil {
			if err == ErrNeedMigration {
				logrus.Debugf("%s not migrated", id)
			}
			logrus.Fatalf("Error getting image IDs: %s", err)
		}

		if _, err := os.Stat(cacheDir); err != nil {
			if os.IsNotExist(err) {
				logrus.Debugf("Skipping, missing cache dir: %s", id)
				continue
			}
			logrus.Fatalf("Error checking cache dir %s: %s", cacheDir, err)
		}

		ids = append(ids, id)
	}

	updates := map[string]string{}
	fileUpdates := []string{
		filepath.Join(graphdir, fmt.Sprintf("repositories-%s", driver)),
	}
	for _, id := range ids {
		fmt.Fprintf(cmd.Out(), "Scrambling %s\n", id)

		newID := stringid.GenerateRandomID()
		updates[id] = newID

		oldPath := filepath.Join(graphdir, "graph", id)
		newPath := filepath.Join(graphdir, "graph", newID)
		if err := os.Rename(oldPath, newPath); err != nil {
			logrus.Errorf("Error renaming %s to %s: %s", oldPath, newPath, err)
			continue
		}

		updates[id] = newID
		fileUpdates = append(fileUpdates, filepath.Join(graphdir, "graph", newID, "json"))
	}

	updateReferences(updates, fileUpdates)

	logrus.Debugf("Ran scramble in %s", time.Since(t1).String())
}

func setupAppConfig(f *clientcmd.Factory, out io.Writer, c *cobra.Command, args []string, config *newcmd.AppConfig) error {
	namespace, _, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	dockerClient, _, err := dockerutil.NewHelper().GetClient()
	if err == nil {
		if err = dockerClient.Ping(); err == nil {
			config.SetDockerClient(dockerClient)
		} else {
			glog.V(4).Infof("Docker client did not respond to a ping: %v", err)
		}
	}
	if err != nil {
		glog.V(2).Infof("No local Docker daemon detected: %v", err)
	}

	osclient, kclient, err := f.Clients()
	if err != nil {
		return err
	}
	config.KubeClient = kclient
	config.SetOpenShiftClient(osclient, namespace)

	// Only output="" should print descriptions of intermediate steps. Everything
	// else should print only some specific output (json, yaml, go-template, ...)
	output := cmdutil.GetFlagString(c, "output")
	if len(output) == 0 {
		config.Out = out
	} else {
		config.Out = ioutil.Discard
	}
	config.ErrOut = c.Out()

	if config.AllowSecretUse {
		cfg, err := f.OpenShiftClientConfig.ClientConfig()
		if err != nil {
			return err
		}
		config.SecretAccessor = newConfigSecretRetriever(cfg)
	}

	unknown := config.AddArguments(args)
	if len(unknown) != 0 {
		return cmdutil.UsageError(c, "Did not recognize the following arguments: %v", unknown)
	}

	if config.AllowMissingImages && config.AsSearch {
		return cmdutil.UsageError(c, "--allow-missing-images and --search are mutually exclusive.")
	}

	if len(config.SourceImage) != 0 && len(config.SourceImagePath) == 0 {
		return cmdutil.UsageError(c, "--source-image-path must be specified when --source-image is specified.")
	}
	if len(config.SourceImage) == 0 && len(config.SourceImagePath) != 0 {
		return cmdutil.UsageError(c, "--source-image must be specified when --source-image-path is specified.")
	}
	return nil
}

func getContainerChanges(ctx *cobra.Command, args []string) {
	if len(args) < 1 {
		ErrorExit(ctx, "Needs an argument <NAME|ID> to get changes")
	}

	docker, err := client.NewDockerClient(configPath, hostName, ctx.Out())
	if err != nil {
		log.Fatal(err)
	}

	changes, err := docker.GetContainerChanges(args[0])
	if err != nil {
		log.Fatal(err)
	}

	for _, change := range changes {
		var kind string
		switch change.Kind {
		case api.CHANGE_TYPE_MODIFY:
			kind = "C"
		case api.CHANGE_TYPE_ADD:
			kind = "A"
		case api.CHANGE_TYPE_DELETE:
			kind = "D"
		}
		ctx.Printf("%s %s\n", kind, change.Path)
	}
}

// Complete sets any default behavior for the command
func (o *NewAppOptions) Complete(commandName string, f *clientcmd.Factory, c *cobra.Command, args []string, out io.Writer) error {
	o.Out = out
	o.ErrOut = c.Out()
	o.Output = kcmdutil.GetFlagString(c, "output")
	// Only output="" should print descriptions of intermediate steps. Everything
	// else should print only some specific output (json, yaml, go-template, ...)
	if len(o.Output) == 0 {
		o.Config.Out = o.Out
	} else {
		o.Config.Out = ioutil.Discard
	}
	o.Config.ErrOut = o.ErrOut

	o.CommandPath = c.CommandPath()
	o.CommandName = commandName
	o.PrintObject = cmdutil.VersionedPrintObject(f.PrintObject, c, out)
	o.LogsForObject = f.LogsForObject
	if err := CompleteAppConfig(o.Config, f, c, args); err != nil {
		return err
	}
	if err := setAppConfigLabels(c, o.Config); err != nil {
		return err
	}
	return nil
}

// keyRemove deletes a private key based on ID
func (k *keyCommander) keyRemove(cmd *cobra.Command, args []string) error {
	if len(args) < 1 {
		cmd.Usage()
		return fmt.Errorf("must specify the key ID of the key to remove")
	}

	config, err := k.configGetter()
	if err != nil {
		return err
	}
	ks, err := k.getKeyStores(config, true, false)
	if err != nil {
		return err
	}
	keyID := args[0]

	// This is an invalid ID
	if len(keyID) != notary.SHA256HexSize {
		return fmt.Errorf("invalid key ID provided: %s", keyID)
	}
	cmd.Println("")
	err = removeKeyInteractively(ks, keyID, k.input, cmd.Out())
	cmd.Println("")
	return err
}