Golang util.UsageError函数代码示例

func (o *OpenShiftLogsOptions) Complete(f *clientcmd.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
	switch len(args) {
	case 0:
		return cmdutil.UsageError(cmd, "RESOURCE is required for log")

	case 1:
		o.ResourceString = args[0]
	case 2:
		o.ResourceString = args[0]
		o.ContainerName = args[1]

	default:
		return cmdutil.UsageError(cmd, "log RESOURCE")
	}

	var err error
	o.Namespace, _, err = f.DefaultNamespace()
	if err != nil {
		return err
	}
	o.OriginClient, o.KubeClient, err = f.Clients()
	if err != nil {
		return err
	}

	return nil
}

// Complete verifies command line arguments and loads data from the command environment
func (o *RsyncOptions) Complete(f *clientcmd.Factory, cmd *cobra.Command, args []string) error {
	switch n := len(args); {
	case n == 0:
		cmd.Help()
		fallthrough
	case n < 2:
		return kcmdutil.UsageError(cmd, "SOURCE_DIR and POD:DESTINATION_DIR are required arguments")
	case n > 2:
		return kcmdutil.UsageError(cmd, "only SOURCE_DIR and POD:DESTINATION_DIR should be specified as arguments")
	}

	// Set main command arguments
	var err error
	o.Source, err = parsePathSpec(args[0])
	if err != nil {
		return err
	}
	o.Destination, err = parsePathSpec(args[1])
	if err != nil {
		return err
	}

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

	o.Strategy, err = o.determineStrategy(f, cmd, o.StrategyName)
	if err != nil {
		return err
	}

	return nil
}

func NewCmdSyncGroups(name, fullName string, f *clientcmd.Factory, out io.Writer) *cobra.Command {
	options := NewSyncGroupsOptions()
	options.Out = out

	cmd := &cobra.Command{
		Use:     fmt.Sprintf("%s [SOURCE SCOPE WHITELIST --whitelist=WHITELIST-FILE] --sync-config=CONFIG-SOURCE", name),
		Short:   "Sync OpenShift Groups with records from an external provider.",
		Long:    syncGroupsLong,
		Example: fmt.Sprintf(syncGroupsExamples, fullName),
		Run: func(c *cobra.Command, args []string) {
			if err := options.Complete(args, f); err != nil {
				cmdutil.CheckErr(cmdutil.UsageError(c, err.Error()))
			}

			if err := options.Validate(); err != nil {
				cmdutil.CheckErr(cmdutil.UsageError(c, err.Error()))
			}

			err := options.Run()
			cmdutil.CheckErr(err)
		},
	}

	cmd.Flags().StringVar(&options.WhitelistSource, "whitelist", "", "The path to the group whitelist")
	cmd.Flags().StringVar(&options.ConfigSource, "sync-config", "", "The path to the sync config")
	cmd.Flags().BoolVar(&options.SyncExisting, "existing", false, "Sync only existing, previously-synced groups")

	return cmd
}

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
}

// NewCmdAddSecret creates a command object for adding a secret reference to a service account
func NewCmdAddSecret(name, fullName string, f *cmdutil.Factory, out io.Writer) *cobra.Command {
	o := &AddSecretOptions{Out: out}
	var typeFlags util.StringList

	cmd := &cobra.Command{
		Use:   fmt.Sprintf("%s serviceaccounts/sa-name secrets/secret-name [secrets/another-secret-name]...", name),
		Short: "Add secrets to a ServiceAccount",
		Long:  fmt.Sprintf(addSecretLong, fullName),
		Run: func(c *cobra.Command, args []string) {
			if err := o.Complete(f, args, typeFlags); err != nil {
				cmdutil.CheckErr(cmdutil.UsageError(c, err.Error()))
			}

			if err := o.Validate(); err != nil {
				cmdutil.CheckErr(cmdutil.UsageError(c, err.Error()))
			}

			if err := o.AddSecrets(); err != nil {
				cmdutil.CheckErr(err)
			}

		},
	}

	forFlag := &pflag.Flag{
		Name:     "for",
		Usage:    "type of secret to add: mount or pull",
		Value:    &typeFlags,
		DefValue: "mount",
	}
	cmd.Flags().AddFlag(forFlag)

	return cmd
}

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
}

// NewCmdLinkSecret creates a command object for linking a secret reference to a service account
func NewCmdLinkSecret(name, fullName string, f *kcmdutil.Factory, out io.Writer) *cobra.Command {
	o := &LinkSecretOptions{SecretOptions{Out: out}, false, false, nil}

	cmd := &cobra.Command{
		Use:     fmt.Sprintf("%s serviceaccounts-name secret-name [another-secret-name]...", name),
		Short:   "Link secrets to a ServiceAccount",
		Long:    linkSecretLong,
		Example: fmt.Sprintf(linkSecretExample, fullName),
		Run: func(c *cobra.Command, args []string) {
			if err := o.Complete(f, args); err != nil {
				kcmdutil.CheckErr(kcmdutil.UsageError(c, err.Error()))
			}

			if err := o.Validate(); err != nil {
				kcmdutil.CheckErr(kcmdutil.UsageError(c, err.Error()))
			}

			if err := o.LinkSecrets(); err != nil {
				kcmdutil.CheckErr(err)
			}

		},
	}

	cmd.Flags().StringSliceVar(&o.typeFlags, "for", []string{"mount"}, "type of secret to link: mount or pull")

	return cmd
}

// CreateSecretDockerRegistry is the implementation of the create secret docker-registry command
func CreateSecretDockerRegistry(f cmdutil.Factory, cmdOut io.Writer, cmd *cobra.Command, args []string) error {
	name, err := NameFromCommandArgs(cmd, args)
	if err != nil {
		return err
	}
	requiredFlags := []string{"docker-username", "docker-password", "docker-email", "docker-server"}
	for _, requiredFlag := range requiredFlags {
		if value := cmdutil.GetFlagString(cmd, requiredFlag); len(value) == 0 {
			return cmdutil.UsageError(cmd, "flag %s is required", requiredFlag)
		}
	}
	var generator kubectl.StructuredGenerator
	switch generatorName := cmdutil.GetFlagString(cmd, "generator"); generatorName {
	case cmdutil.SecretForDockerRegistryV1GeneratorName:
		generator = &kubectl.SecretForDockerRegistryGeneratorV1{
			Name:     name,
			Username: cmdutil.GetFlagString(cmd, "docker-username"),
			Email:    cmdutil.GetFlagString(cmd, "docker-email"),
			Password: cmdutil.GetFlagString(cmd, "docker-password"),
			Server:   cmdutil.GetFlagString(cmd, "docker-server"),
		}
	default:
		return cmdutil.UsageError(cmd, fmt.Sprintf("Generator: %s not supported.", generatorName))
	}
	return RunCreateSubcommand(f, cmd, cmdOut, &CreateSubcommandOptions{
		Name:                name,
		StructuredGenerator: generator,
		DryRun:              cmdutil.GetDryRunFlag(cmd),
		OutputFormat:        cmdutil.GetFlagString(cmd, "output"),
	})
}

func (o *NewServiceAccountTokenOptions) Complete(args []string, requestedLabels string, f *clientcmd.Factory, cmd *cobra.Command) error {
	if len(args) != 1 {
		return cmdutil.UsageError(cmd, fmt.Sprintf("expected one service account name as an argument, got %q", args))
	}

	o.SAName = args[0]

	if len(requestedLabels) > 0 {
		labels, err := kubectl.ParseLabels(requestedLabels)
		if err != nil {
			return cmdutil.UsageError(cmd, err.Error())
		}
		o.Labels = labels
	}

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

	namespace, _, err := f.DefaultNamespace()
	if err != nil {
		return fmt.Errorf("could not retrieve default namespace: %v", err)
	}

	o.SAClient = client.ServiceAccounts(namespace)
	o.SecretsClient = client.Secrets(namespace)
	return nil
}

// Complete verifies command line arguments and loads data from the command environment
func (p *AttachOptions) Complete(f *cmdutil.Factory, cmd *cobra.Command, argsIn []string) error {
	if len(argsIn) == 0 {
		return cmdutil.UsageError(cmd, "POD is required for attach")
	}
	if len(argsIn) > 1 {
		return cmdutil.UsageError(cmd, fmt.Sprintf("expected a single argument: POD, saw %d: %s", len(argsIn), argsIn))
	}
	p.PodName = argsIn[0]

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

	config, err := f.ClientConfig()
	if err != nil {
		return err
	}
	p.Config = config

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

	return nil
}

// NewCmdAddSecret creates a command object for adding a secret reference to a service account
func NewCmdAddSecret(name, fullName string, f *cmdutil.Factory, out io.Writer) *cobra.Command {
	o := &AddSecretOptions{Out: out}
	var typeFlags []string

	cmd := &cobra.Command{
		Use:     fmt.Sprintf("%s serviceaccounts/sa-name secrets/secret-name [secrets/another-secret-name]...", name),
		Short:   "Add secrets to a ServiceAccount",
		Long:    addSecretLong,
		Example: fmt.Sprintf(addSecretExample, fullName),
		Run: func(c *cobra.Command, args []string) {
			if err := o.Complete(f, args, typeFlags); err != nil {
				cmdutil.CheckErr(cmdutil.UsageError(c, err.Error()))
			}

			if err := o.Validate(); err != nil {
				cmdutil.CheckErr(cmdutil.UsageError(c, err.Error()))
			}

			if err := o.AddSecrets(); err != nil {
				cmdutil.CheckErr(err)
			}

		},
	}

	cmd.Flags().StringSliceVar(&typeFlags, "for", []string{"mount"}, "type of secret to add: mount or pull")

	return cmd
}

func (o *LogsOptions) Complete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
	switch len(args) {
	case 0:
		return cmdutil.UsageError(cmd, "POD is required for log")

	case 1:
		o.PodName = args[0]
	case 2:
		o.PodName = args[0]
		o.ContainerName = args[1]

	default:
		return cmdutil.UsageError(cmd, "log POD [CONTAINER]")
	}

	var err error
	o.PodNamespace, _, err = f.DefaultNamespace()
	if err != nil {
		return err
	}
	o.Client, err = f.Client()
	if err != nil {
		return err
	}

	return nil
}

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

	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 specificy a single filename for new controller")
	}
	if len(filenames) > 0 {
		filename = filenames[0]
	}
	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")
	}
	if len(args) < 1 {
		return "", "", "", "", cmdutil.UsageError(cmd, "Must specify the controller to update")
	}

	return deploymentKey, filename, image, args[0], nil
}

func (o *DockerbuildOptions) Complete(f *clientcmd.Factory, cmd *cobra.Command, args []string) error {
	paths, envArgs, ok := cmdutil.SplitEnvironmentFromResources(args)
	if !ok {
		return kcmdutil.UsageError(cmd, "context directory must be specified before environment changes: %s", strings.Join(args, " "))
	}
	if len(paths) != 2 {
		return kcmdutil.UsageError(cmd, "the directory to build and tag must be specified")
	}
	o.Arguments, _, _ = cmdutil.ParseEnvironmentArguments(envArgs)
	o.Directory = paths[0]
	o.Tag = paths[1]
	if len(o.DockerfilePath) == 0 {
		o.DockerfilePath = filepath.Join(o.Directory, "Dockerfile")
	}

	var mounts []dockerbuilder.Mount
	for _, s := range o.MountSpecs {
		segments := strings.Split(s, ":")
		if len(segments) != 2 {
			return kcmdutil.UsageError(cmd, "--mount must be of the form SOURCE:DEST")
		}
		mounts = append(mounts, dockerbuilder.Mount{SourcePath: segments[0], DestinationPath: segments[1]})
	}
	o.Mounts = mounts

	client, err := docker.NewClientFromEnv()
	if err != nil {
		return err
	}
	o.Client = client

	o.Keyring = credentialprovider.NewDockerKeyring()

	return nil
}

// NewCmdUnlinkSecret creates a command object for detaching one or more secret references from a service account
func NewCmdUnlinkSecret(name, fullName string, f *kcmdutil.Factory, out io.Writer) *cobra.Command {
	o := &UnlinkSecretOptions{SecretOptions{Out: out}}

	cmd := &cobra.Command{
		Use:     fmt.Sprintf("%s serviceaccount-name secret-name [another-secret-name] ...", name),
		Short:   "Detach secrets from a ServiceAccount",
		Long:    unlinkSecretLong,
		Example: fmt.Sprintf(unlinkSecretExample, fullName),
		Run: func(c *cobra.Command, args []string) {
			if err := o.Complete(f, args); err != nil {
				kcmdutil.CheckErr(kcmdutil.UsageError(c, err.Error()))
			}
			if err := o.Validate(); err != nil {
				kcmdutil.CheckErr(kcmdutil.UsageError(c, err.Error()))
			}

			if err := o.UnlinkSecrets(); err != nil {
				kcmdutil.CheckErr(err)
			}

		},
	}

	return cmd
}