Golang util.GetFlagBool函数代码示例

func RunReplace(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *ReplaceOptions) error {
	if len(os.Args) > 1 && os.Args[1] == "update" {
		printDeprecationWarning("replace", "update")
	}
	schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir"))
	if err != nil {
		return err
	}

	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	force := cmdutil.GetFlagBool(cmd, "force")
	if len(options.Filenames) == 0 {
		return cmdutil.UsageError(cmd, "Must specify --filename to replace")
	}

	shortOutput := cmdutil.GetFlagString(cmd, "output") == "name"
	if force {
		return forceReplace(f, out, cmd, args, shortOutput, options)
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		Schema(schema).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(enforceNamespace, options.Filenames...).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}

	return r.Visit(func(info *resource.Info, err error) error {
		if err != nil {
			return err
		}

		// Serialize the configuration into an annotation.
		if err := kubectl.UpdateApplyAnnotation(info); err != nil {
			return err
		}

		// Serialize the object with the annotation applied.
		obj, err := resource.NewHelper(info.Client, info.Mapping).Replace(info.Namespace, info.Name, true, info.Object)
		if err != nil {
			return cmdutil.AddSourceToErr("replacing", info.Source, err)
		}

		info.Refresh(obj, true)
		printObjectSpecificMessage(obj, out)
		cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "replaced")
		return nil
	})
}

func validateArguments(cmd *cobra.Command, filenames, args []string) error {
	deploymentKey := cmdutil.GetFlagString(cmd, "deployment-label-key")
	image := cmdutil.GetFlagString(cmd, "image")
	rollback := cmdutil.GetFlagBool(cmd, "rollback")

	if len(deploymentKey) == 0 {
		return cmdutil.UsageError(cmd, "--deployment-label-key can not be empty")
	}
	if len(filenames) > 1 {
		return cmdutil.UsageError(cmd, "May only specify a single filename for new controller")
	}

	if !rollback {
		if len(filenames) == 0 && len(image) == 0 {
			return cmdutil.UsageError(cmd, "Must specify --filename or --image for new controller")
		}
		if len(filenames) != 0 && len(image) != 0 {
			return cmdutil.UsageError(cmd, "--filename and --image can not both be specified")
		}
	} else {
		if len(filenames) != 0 || len(image) != 0 {
			return cmdutil.UsageError(cmd, "Don't specify --filename or --image on rollback")
		}
	}

	if len(args) < 1 {
		return cmdutil.UsageError(cmd, "Must specify the controller to update")
	}

	return nil
}

func createGeneratedObject(f *cmdutil.Factory, cmd *cobra.Command, generator kubectl.Generator, names []kubectl.GeneratorParam, params map[string]interface{}, overrides, namespace string) (runtime.Object, string, meta.RESTMapper, *meta.RESTMapping, error) {
	err := kubectl.ValidateParams(names, params)
	if err != nil {
		return nil, "", nil, nil, err
	}

	obj, err := generator.Generate(params)
	if err != nil {
		return nil, "", nil, nil, err
	}

	mapper, typer := f.Object()
	version, kind, err := typer.ObjectVersionAndKind(obj)
	if err != nil {
		return nil, "", nil, nil, err
	}

	if len(overrides) > 0 {
		obj, err = cmdutil.Merge(obj, overrides, kind)
		if err != nil {
			return nil, "", nil, nil, err
		}
	}

	mapping, err := mapper.RESTMapping(kind, version)
	if err != nil {
		return nil, "", nil, nil, err
	}
	client, err := f.RESTClient(mapping)
	if err != nil {
		return nil, "", nil, nil, err
	}

	// TODO: extract this flag to a central location, when such a location exists.
	if !cmdutil.GetFlagBool(cmd, "dry-run") {
		resourceMapper := &resource.Mapper{ObjectTyper: typer, RESTMapper: mapper, ClientMapper: f.ClientMapperForCommand()}
		info, err := resourceMapper.InfoForObject(obj)
		if err != nil {
			return nil, "", nil, nil, err
		}

		// Serialize the configuration into an annotation.
		if err := kubectl.UpdateApplyAnnotation(info); err != nil {
			return nil, "", nil, nil, err
		}

		// Serialize the object with the annotation applied.
		data, err := mapping.Codec.Encode(info.Object)
		if err != nil {
			return nil, "", nil, nil, err
		}

		obj, err = resource.NewHelper(client, mapping).Create(namespace, false, data)
		if err != nil {
			return nil, "", nil, nil, err
		}
	}
	return obj, kind, mapper, mapping, err
}

func RunCreate(f *cmdutil.Factory, cmd *cobra.Command, out io.Writer, options *CreateOptions) error {
	schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir"))
	if err != nil {
		return err
	}

	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		Schema(schema).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(enforceNamespace, options.Filenames...).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}

	count := 0
	err = r.Visit(func(info *resource.Info, err error) error {
		if err != nil {
			return err
		}

		// Update the annotation used by kubectl apply
		if err := kubectl.UpdateApplyAnnotation(info); err != nil {
			return cmdutil.AddSourceToErr("creating", info.Source, err)
		}

		obj, err := resource.NewHelper(info.Client, info.Mapping).Create(info.Namespace, true, info.Object)
		if err != nil {
			return cmdutil.AddSourceToErr("creating", info.Source, err)
		}

		count++
		info.Refresh(obj, true)
		shortOutput := cmdutil.GetFlagString(cmd, "output") == "name"
		if !shortOutput {
			printObjectSpecificMessage(info.Object, out)
		}
		cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "created")
		return nil
	})
	if err != nil {
		return err
	}
	if count == 0 {
		return fmt.Errorf("no objects passed to create")
	}
	return nil
}

func RunDelete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *DeleteOptions) error {
	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}
	deleteAll := cmdutil.GetFlagBool(cmd, "all")
	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(enforceNamespace, options.Filenames...).
		SelectorParam(cmdutil.GetFlagString(cmd, "selector")).
		SelectAllParam(deleteAll).
		ResourceTypeOrNameArgs(false, args...).RequireObject(false).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}

	ignoreNotFound := cmdutil.GetFlagBool(cmd, "ignore-not-found")
	if deleteAll {
		f := cmd.Flags().Lookup("ignore-not-found")
		// The flag should never be missing
		if f == nil {
			return fmt.Errorf("missing --ignore-not-found flag")
		}
		// If the user didn't explicitly set the option, default to ignoring NotFound errors when used with --all
		if !f.Changed {
			ignoreNotFound = true
		}
	}

	shortOutput := cmdutil.GetFlagString(cmd, "output") == "name"
	// By default use a reaper to delete all related resources.
	if cmdutil.GetFlagBool(cmd, "cascade") {
		return ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"), shortOutput, mapper)
	}
	return DeleteResult(r, out, ignoreNotFound, shortOutput, mapper)
}

func RunProxy(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command) error {
	path := cmdutil.GetFlagString(cmd, "unix-socket")
	port := cmdutil.GetFlagInt(cmd, "port")
	address := cmdutil.GetFlagString(cmd, "address")

	if port != default_port && path != "" {
		return errors.New("Don't specify both --unix-socket and --port")
	}

	clientConfig, err := f.ClientConfig()
	if err != nil {
		return err
	}

	staticPrefix := cmdutil.GetFlagString(cmd, "www-prefix")
	if !strings.HasSuffix(staticPrefix, "/") {
		staticPrefix += "/"
	}

	apiProxyPrefix := cmdutil.GetFlagString(cmd, "api-prefix")
	if !strings.HasSuffix(apiProxyPrefix, "/") {
		apiProxyPrefix += "/"
	}
	filter := &kubectl.FilterServer{
		AcceptPaths: kubectl.MakeRegexpArrayOrDie(cmdutil.GetFlagString(cmd, "accept-paths")),
		RejectPaths: kubectl.MakeRegexpArrayOrDie(cmdutil.GetFlagString(cmd, "reject-paths")),
		AcceptHosts: kubectl.MakeRegexpArrayOrDie(cmdutil.GetFlagString(cmd, "accept-hosts")),
	}
	if cmdutil.GetFlagBool(cmd, "disable-filter") {
		if path == "" {
			glog.Warning("Request filter disabled, your proxy is vulnerable to XSRF attacks, please be cautious")
		}
		filter = nil
	}

	server, err := kubectl.NewProxyServer(cmdutil.GetFlagString(cmd, "www"), apiProxyPrefix, staticPrefix, filter, clientConfig)

	// Separate listening from serving so we can report the bound port
	// when it is chosen by os (eg: port == 0)
	var l net.Listener
	if path == "" {
		l, err = server.Listen(address, port)
	} else {
		l, err = server.ListenUnix(path)
	}
	if err != nil {
		glog.Fatal(err)
	}
	fmt.Fprintf(out, "Starting to serve on %s", l.Addr().String())
	glog.Fatal(server.ServeOnListener(l))
	return nil
}

func RunStop(f *cmdutil.Factory, cmd *cobra.Command, args []string, out io.Writer, options *StopOptions) error {
	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		ResourceTypeOrNameArgs(false, args...).
		FilenameParam(enforceNamespace, options.Filenames...).
		SelectorParam(cmdutil.GetFlagString(cmd, "selector")).
		SelectAllParam(cmdutil.GetFlagBool(cmd, "all")).
		Flatten().
		Do()
	if r.Err() != nil {
		return r.Err()
	}
	shortOutput := cmdutil.GetFlagString(cmd, "output") == "name"
	return ReapResult(r, f, out, false, cmdutil.GetFlagBool(cmd, "ignore-not-found"), cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"), shortOutput, mapper)
}

func RunVersion(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command) error {
	kubectl.GetClientVersion(out)
	if cmdutil.GetFlagBool(cmd, "client") {
		return nil
	}

	client, err := f.Client()
	if err != nil {
		return err
	}

	kubectl.GetServerVersion(out, client)
	return nil
}

// Complete collects information required to run Convert command from command line.
func (o *ConvertOptions) Complete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) (err error) {
	o.outputVersion = cmdutil.OutputVersion(cmd, latest.GroupOrDie("").Version)
	if !registered.IsRegisteredAPIVersion(o.outputVersion) {
		cmdutil.UsageError(cmd, "'%s' is not a registered version.", o.outputVersion)
	}

	// build the builder
	mapper, typer := f.Object()
	if o.local {
		fmt.Fprintln(out, "running in local mode...")
		o.builder = resource.NewBuilder(mapper, typer, f.NilClientMapperForCommand())
	} else {
		o.builder = resource.NewBuilder(mapper, typer, f.ClientMapperForCommand())
		schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir"))
		if err != nil {
			return err
		}
		o.builder = o.builder.Schema(schema)
	}
	cmdNamespace, _, err := f.DefaultNamespace()
	if err != nil {
		return err
	}
	o.builder = o.builder.NamespaceParam(cmdNamespace).
		ContinueOnError().
		FilenameParam(false, o.filenames...).
		Flatten()

	// build the printer
	o.out = out
	outputFormat := cmdutil.GetFlagString(cmd, "output")
	templateFile := cmdutil.GetFlagString(cmd, "template")
	if len(outputFormat) == 0 {
		if len(templateFile) == 0 {
			outputFormat = "yaml"
		} else {
			outputFormat = "template"
		}
	}
	o.printer, _, err = kubectl.GetPrinter(outputFormat, templateFile)
	if err != nil {
		return err
	}

	return nil
}

// RunExplain executes the appropriate steps to print a model's documentation
func RunExplain(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
	if len(args) != 1 {
		return cmdutil.UsageError(cmd, "We accept only this format: explain RESOURCE")
	}

	client, err := f.Client()
	if err != nil {
		return err
	}

	recursive := cmdutil.GetFlagBool(cmd, "recursive")
	apiV := cmdutil.GetFlagString(cmd, "api-version")

	mapper, _ := f.Object()
	// TODO: After we figured out the new syntax to separate group and resource, allow
	// the users to use it in explain (kubectl explain <group><syntax><resource>).
	// Refer to issue #16039 for why we do this. Refer to PR #15808 that used "/" syntax.
	inModel, fieldsPath, err := kubectl.SplitAndParseResourceRequest(args[0], mapper)
	if err != nil {
		return err
	}

	// TODO: We should deduce the group for a resource by discovering the supported resources at server.
	group, err := mapper.GroupForResource(inModel)
	if err != nil {
		return err
	}

	if len(apiV) == 0 {
		groupMeta, err := latest.Group(group)
		if err != nil {
			return err
		}
		apiV = groupMeta.GroupVersion
	}
	swagSchema, err := kubectl.GetSwaggerSchema(apiV, client)
	if err != nil {
		return err
	}

	return kubectl.PrintModelDescription(inModel, fieldsPath, out, swagSchema, recursive)
}

func RunExpose(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *ExposeOptions) error {
	namespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(namespace).DefaultNamespace().
		FilenameParam(enforceNamespace, options.Filenames...).
		ResourceTypeOrNameArgs(false, args...).
		Flatten().
		Do()
	infos, err := r.Infos()
	if err != nil {
		return err
	}
	if len(infos) > 1 {
		return fmt.Errorf("multiple resources provided: %v", args)
	}
	info := infos[0]
	mapping := info.ResourceMapping()
	if err := f.CanBeExposed(mapping.Kind); err != nil {
		return err
	}
	// Get the input object
	inputObject, err := r.Object()
	if err != nil {
		return err
	}

	// Get the generator, setup and validate all required parameters
	generatorName := cmdutil.GetFlagString(cmd, "generator")
	generator, found := f.Generator(generatorName)
	if !found {
		return cmdutil.UsageError(cmd, fmt.Sprintf("generator %q not found.", generatorName))
	}
	names := generator.ParamNames()
	params := kubectl.MakeParams(cmd, names)
	params["default-name"] = info.Name

	// For objects that need a pod selector, derive it from the exposed object in case a user
	// didn't explicitly specify one via --selector
	if s, found := params["selector"]; found && kubectl.IsZero(s) {
		s, err := f.PodSelectorForObject(inputObject)
		if err != nil {
			return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find selectors via --selector flag or introspection: %s", err))
		}
		params["selector"] = s
	}

	if cmdutil.GetFlagInt(cmd, "port") < 1 {
		noPorts := true
		for _, param := range names {
			if param.Name == "port" {
				noPorts = false
				break
			}
		}
		if cmdutil.GetFlagInt(cmd, "port") < 0 && !noPorts {
			ports, err := f.PortsForObject(inputObject)
			if err != nil {
				return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find port via --port flag or introspection: %s", err))
			}
			switch len(ports) {
			case 0:
				return cmdutil.UsageError(cmd, "couldn't find port via --port flag or introspection")
			case 1:
				params["port"] = ports[0]
			default:
				return cmdutil.UsageError(cmd, fmt.Sprintf("multiple ports to choose from: %v, please explicitly specify a port using the --port flag.", ports))
			}
		}
	}
	if cmdutil.GetFlagBool(cmd, "create-external-load-balancer") {
		params["create-external-load-balancer"] = "true"
	}
	if kubectl.IsZero(params["labels"]) {
		labels, err := f.LabelsForObject(inputObject)
		if err != nil {
			return err
		}
		params["labels"] = kubectl.MakeLabels(labels)
	}
	if v := cmdutil.GetFlagString(cmd, "type"); v != "" {
		params["type"] = v
	}
	err = kubectl.ValidateParams(names, params)
	if err != nil {
		return err
	}

	// Expose new object
	object, err := generator.Generate(params)
	if err != nil {
		return err
	}

	inline := cmdutil.GetFlagString(cmd, "overrides")
//.........这里部分代码省略.........

// RunLog retrieves a pod log
func RunLog(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, p *logParams) error {
	if len(os.Args) > 1 && os.Args[1] == "log" {
		printDeprecationWarning("logs", "log")
	}

	if len(args) == 0 {
		return cmdutil.UsageError(cmd, "POD is required for log")
	}

	if len(args) > 2 {
		return cmdutil.UsageError(cmd, "log POD [CONTAINER]")
	}

	sinceSeconds := cmdutil.GetFlagDuration(cmd, "since")
	sinceTime := cmdutil.GetFlagString(cmd, "since-time")
	if len(sinceTime) > 0 && sinceSeconds > 0 {
		return cmdutil.UsageError(cmd, "only one of --since, --since-time may be specified")
	}

	namespace, _, err := f.DefaultNamespace()
	if err != nil {
		return err
	}
	client, err := f.Client()
	if err != nil {
		return err
	}

	podID := args[0]

	pod, err := client.Pods(namespace).Get(podID)
	if err != nil {
		return err
	}

	// [-c CONTAINER]
	container := p.containerName
	if len(container) == 0 {
		// [CONTAINER] (container as arg not flag) is supported as legacy behavior. See PR #10519 for more details.
		if len(args) == 1 {
			if len(pod.Spec.Containers) != 1 {
				podContainersNames := []string{}
				for _, container := range pod.Spec.Containers {
					podContainersNames = append(podContainersNames, container.Name)
				}

				return fmt.Errorf("Pod %s has the following containers: %s; please specify the container to print logs for with -c", pod.ObjectMeta.Name, strings.Join(podContainersNames, ", "))
			}
			container = pod.Spec.Containers[0].Name
		} else {
			container = args[1]
		}
	}

	logOptions := &api.PodLogOptions{
		Container:  container,
		Follow:     cmdutil.GetFlagBool(cmd, "follow"),
		Previous:   cmdutil.GetFlagBool(cmd, "previous"),
		Timestamps: cmdutil.GetFlagBool(cmd, "timestamps"),
	}
	if sinceSeconds > 0 {
		// round up to the nearest second
		sec := int64(math.Ceil(float64(sinceSeconds) / float64(time.Second)))
		logOptions.SinceSeconds = &sec
	}
	if t, err := api.ParseRFC3339(sinceTime, unversioned.Now); err == nil {
		logOptions.SinceTime = &t
	}
	if limitBytes := cmdutil.GetFlagInt(cmd, "limit-bytes"); limitBytes != 0 {
		i := int64(limitBytes)
		logOptions.LimitBytes = &i
	}
	if tail := cmdutil.GetFlagInt(cmd, "tail"); tail >= 0 {
		i := int64(tail)
		logOptions.TailLines = &i
	}

	return handleLog(client, namespace, podID, logOptions, out)
}

//.........这里部分代码省略.........
	// Get the input object
	inputObject, err := r.Object()
	if err != nil {
		return err
	}

	// Get the generator, setup and validate all required parameters
	generatorName := cmdutil.GetFlagString(cmd, "generator")
	generator, found := f.Generator(generatorName)
	if !found {
		return cmdutil.UsageError(cmd, fmt.Sprintf("generator %q not found.", generatorName))
	}
	names := generator.ParamNames()
	params := kubectl.MakeParams(cmd, names)
	name := info.Name
	if len(name) > validation.DNS952LabelMaxLength {
		name = name[:validation.DNS952LabelMaxLength]
	}
	params["default-name"] = name

	// For objects that need a pod selector, derive it from the exposed object in case a user
	// didn't explicitly specify one via --selector
	if s, found := params["selector"]; found && kubectl.IsZero(s) {
		s, err := f.PodSelectorForObject(inputObject)
		if err != nil {
			return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find selectors via --selector flag or introspection: %s", err))
		}
		params["selector"] = s
	}

	// For objects that need a port, derive it from the exposed object in case a user
	// didn't explicitly specify one via --port
	if port, found := params["port"]; found && kubectl.IsZero(port) {
		ports, err := f.PortsForObject(inputObject)
		if err != nil {
			return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find port via --port flag or introspection: %s", err))
		}
		switch len(ports) {
		case 0:
			return cmdutil.UsageError(cmd, "couldn't find port via --port flag or introspection")
		case 1:
			params["port"] = ports[0]
		default:
			params["ports"] = strings.Join(ports, ",")
		}
	}
	if kubectl.IsZero(params["labels"]) {
		labels, err := f.LabelsForObject(inputObject)
		if err != nil {
			return err
		}
		params["labels"] = kubectl.MakeLabels(labels)
	}
	if err = kubectl.ValidateParams(names, params); err != nil {
		return err
	}

	// Generate new object
	object, err := generator.Generate(params)
	if err != nil {
		return err
	}

	if inline := cmdutil.GetFlagString(cmd, "overrides"); len(inline) > 0 {
		object, err = cmdutil.Merge(object, inline, mapping.Kind)
		if err != nil {
			return err
		}
	}

	resourceMapper := &resource.Mapper{ObjectTyper: typer, RESTMapper: mapper, ClientMapper: f.ClientMapperForCommand()}
	info, err = resourceMapper.InfoForObject(object)
	if err != nil {
		return err
	}
	// TODO: extract this flag to a central location, when such a location exists.
	if cmdutil.GetFlagBool(cmd, "dry-run") {
		return f.PrintObject(cmd, object, out)
	}
	// Serialize the configuration into an annotation.
	if err := kubectl.UpdateApplyAnnotation(info); err != nil {
		return err
	}

	// Serialize the object with the annotation applied.
	data, err := info.Mapping.Codec.Encode(object)
	if err != nil {
		return err
	}
	object, err = resource.NewHelper(info.Client, info.Mapping).Create(namespace, false, data)
	if err != nil {
		return err
	}

	if len(cmdutil.GetFlagString(cmd, "output")) > 0 {
		return f.PrintObject(cmd, object, out)
	}
	cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "exposed")
	return nil
}

func RunLabel(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *LabelOptions) error {
	resources, labelArgs := []string{}, []string{}
	first := true
	for _, s := range args {
		isLabel := strings.Contains(s, "=") || strings.HasSuffix(s, "-")
		switch {
		case first && isLabel:
			first = false
			fallthrough
		case !first && isLabel:
			labelArgs = append(labelArgs, s)
		case first && !isLabel:
			resources = append(resources, s)
		case !first && !isLabel:
			return cmdutil.UsageError(cmd, "all resources must be specified before label changes: %s", s)
		}
	}
	if len(resources) < 1 && len(options.Filenames) == 0 {
		return cmdutil.UsageError(cmd, "one or more resources must be specified as <resource> <name> or <resource>/<name>")
	}
	if len(labelArgs) < 1 {
		return cmdutil.UsageError(cmd, "at least one label update is required")
	}

	selector := cmdutil.GetFlagString(cmd, "selector")
	all := cmdutil.GetFlagBool(cmd, "all")
	overwrite := cmdutil.GetFlagBool(cmd, "overwrite")
	resourceVersion := cmdutil.GetFlagString(cmd, "resource-version")

	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	lbls, remove, err := parseLabels(labelArgs)
	if err != nil {
		return cmdutil.UsageError(cmd, err.Error())
	}
	mapper, typer := f.Object()
	b := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(enforceNamespace, options.Filenames...).
		SelectorParam(selector).
		ResourceTypeOrNameArgs(all, resources...).
		Flatten().
		Latest()

	one := false
	r := b.Do().IntoSingular(&one)
	if err := r.Err(); err != nil {
		return err
	}

	// only apply resource version locking on a single resource
	if !one && len(resourceVersion) > 0 {
		return cmdutil.UsageError(cmd, "--resource-version may only be used with a single resource")
	}

	// TODO: support bulk generic output a la Get
	return r.Visit(func(info *resource.Info, err error) error {
		if err != nil {
			return err
		}

		var outputObj runtime.Object
		if cmdutil.GetFlagBool(cmd, "dry-run") {
			err = labelFunc(info.Object, overwrite, resourceVersion, lbls, remove)
			if err != nil {
				return err
			}
			outputObj = info.Object
		} else {
			name, namespace, obj := info.Name, info.Namespace, info.Object
			oldData, err := json.Marshal(obj)
			if err != nil {
				return err
			}
			if err := labelFunc(obj, overwrite, resourceVersion, lbls, remove); err != nil {
				return err
			}
			newData, err := json.Marshal(obj)
			if err != nil {
				return err
			}
			patchBytes, err := strategicpatch.CreateTwoWayMergePatch(oldData, newData, obj)
			if err != nil {
				return err
			}

			mapping := info.ResourceMapping()
			client, err := f.RESTClient(mapping)
			if err != nil {
				return err
			}
			helper := resource.NewHelper(client, mapping)

			outputObj, err = helper.Patch(namespace, name, api.StrategicMergePatchType, patchBytes)
			if err != nil {
				return err
//.........这里部分代码省略.........

func RunEdit(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, filenames []string) error {
	var printer kubectl.ResourcePrinter
	var ext string
	switch format := cmdutil.GetFlagString(cmd, "output"); format {
	case "json":
		printer = &kubectl.JSONPrinter{}
		ext = ".json"
	case "yaml":
		printer = &kubectl.YAMLPrinter{}
		ext = ".yaml"
	default:
		return cmdutil.UsageError(cmd, "The flag 'output' must be one of yaml|json")
	}

	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	mapper, typer := f.Object()
	rmap := &resource.Mapper{
		ObjectTyper:  typer,
		RESTMapper:   mapper,
		ClientMapper: f.ClientMapperForCommand(),
	}

	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(enforceNamespace, filenames...).
		ResourceTypeOrNameArgs(true, args...).
		Latest().
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}

	infos, err := r.Infos()
	if err != nil {
		return err
	}

	clientConfig, err := f.ClientConfig()
	if err != nil {
		return err
	}

	windowsLineEndings := cmdutil.GetFlagBool(cmd, "windows-line-endings")
	edit := editor.NewDefaultEditor()
	defaultVersion := cmdutil.OutputVersion(cmd, clientConfig.Version)
	results := editResults{}
	for {
		objs, err := resource.AsVersionedObjects(infos, defaultVersion)
		if err != nil {
			return preservedFile(err, results.file, out)
		}
		// if input object is a list, traverse and edit each item one at a time
		for _, obj := range objs {
			// TODO: add an annotating YAML printer that can print inline comments on each field,
			//   including descriptions or validation errors

			// generate the file to edit
			buf := &bytes.Buffer{}
			var w io.Writer = buf
			if windowsLineEndings {
				w = util.NewCRLFWriter(w)
			}
			if err := results.header.writeTo(w); err != nil {
				return preservedFile(err, results.file, out)
			}
			if err := printer.PrintObj(obj, w); err != nil {
				return preservedFile(err, results.file, out)
			}
			original := buf.Bytes()

			// launch the editor
			edited, file, err := edit.LaunchTempFile("kubectl-edit-", ext, buf)
			if err != nil {
				return preservedFile(err, results.file, out)
			}

			// cleanup any file from the previous pass
			if len(results.file) > 0 {
				os.Remove(results.file)
			}

			glog.V(4).Infof("User edited:\n%s", string(edited))
			lines, err := hasLines(bytes.NewBuffer(edited))
			if err != nil {
				return preservedFile(err, file, out)
			}
			// Compare content without comments
			if bytes.Equal(stripComments(original), stripComments(edited)) {
				if len(results.edit) > 0 {
					preservedFile(nil, file, out)
				} else {
					os.Remove(file)
				}
				fmt.Fprintln(out, "Edit cancelled, no changes made.")
//.........这里部分代码省略.........