Golang term.StdStreams函數代碼示例

// Exec
func Exec(params string) error {

	// connect to the server; this will wait until a single read is returned from
	// the server (blocking)
	conn, data, err := connect(fmt.Sprintf("POST /exec?pid=%d&%v HTTP/1.1\r\n\r\n", os.Getpid(), params))
	if err != nil {
		return err
	}
	defer conn.Close()

	// begin watching for changes to the project
	go func() {
		if err := notifyutil.Watch(config.CWDir, NotifyServer); err != nil {
			fmt.Printf(err.Error())
		}
	}()

	// get current term info
	stdIn, stdOut, _ := term.StdStreams()

	//
	terminal.Connect(stdIn, stdOut)

	// print the first read data from above
	os.Stderr.WriteString(string(data))

	//
	return pipeToConnection(conn, stdIn, stdOut)
}

func main() {
	if reexec.Init() {
		return
	}

	// Set terminal emulation based on platform as required.
	stdin, stdout, stderr := term.StdStreams()

	logrus.SetOutput(stderr)

	flag.Merge(flag.CommandLine, clientFlags.FlagSet, commonFlags.FlagSet)

	flag.Usage = func() {
		fmt.Fprint(os.Stdout, "Usage: docker [OPTIONS] COMMAND [arg...]\n"+daemonUsage+"       docker [ -h | --help | -v | --version ]\n\n")
		fmt.Fprint(os.Stdout, "A self-sufficient runtime for containers.\n\nOptions:\n")

		flag.CommandLine.SetOutput(os.Stdout)
		flag.PrintDefaults()

		help := "\nCommands:\n"

		for _, cmd := range dockerCommands {
			help += fmt.Sprintf("    %-10.10s%s\n", cmd.name, cmd.description)
		}

		help += "\nRun 'docker COMMAND --help' for more information on a command."
		fmt.Fprintf(os.Stdout, "%s\n", help)
	}

	flag.Parse()

	if *flVersion {
		showVersion()
		return
	}

	clientCli := client.NewDockerCli(stdin, stdout, stderr, clientFlags)
	// TODO: remove once `-d` is retired
	handleGlobalDaemonFlag()

	if *flHelp {
		// if global flag --help is present, regardless of what other options and commands there are,
		// just print the usage.
		flag.Usage()
		return
	}

	c := cli.New(clientCli, daemonCli)
	if err := c.Run(flag.Args()...); err != nil {
		if sterr, ok := err.(cli.StatusError); ok {
			if sterr.Status != "" {
				fmt.Fprintln(os.Stderr, sterr.Status)
				os.Exit(1)
			}
			os.Exit(sterr.StatusCode)
		}
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
}

// Develop
func Develop(params string, mist mistClient.Client) error {

	// connect to the server; this will wait until a single read is returned from
	// the server (blocking)
	conn, data, err := connect(fmt.Sprintf("POST /develop?pid=%d&%v HTTP/1.1\r\n\r\n", os.Getpid(), params))
	if err != nil {
		return err
	}
	defer conn.Close()

	// disconnect mist
	mist.Close()

	// begin watching for changes to the project
	go func() {
		if err := notifyutil.Watch(config.CWDir, NotifyServer); err != nil {
			fmt.Printf(err.Error())
		}
	}()

	//
	os.Stderr.WriteString(fmt.Sprintf(`+> Opening a nanobox console:


                                   **
                                ********
                             ***************
                          *********************
                            *****************
                          ::    *********    ::
                             ::    ***    ::
                           ++   :::   :::   ++
                              ++   :::   ++
                                 ++   ++
                                    +

                    _  _ ____ _  _ ____ ___  ____ _  _
                    |\ | |__| |\ | |  | |__) |  |  \/
                    | \| |  | | \| |__| |__) |__| _/\_

--------------------------------------------------------------------------------
+ You are in a virtual machine (vm)
+ Your local source code has been mounted into the vm, and changes in either
the vm or local will be mirrored.
+ If you run a server, access it at >> %s
--------------------------------------------------------------------------------
`, config.Nanofile.Domain))

	// get current term info
	stdIn, stdOut, _ := term.StdStreams()

	//
	terminal.Connect(stdIn, stdOut)

	// print the first read data from above
	os.Stderr.WriteString(string(data))

	//
	return pipeToConnection(conn, stdIn, stdOut)
}

// Exec
func Exec(where, params string) error {

	//
	stdIn, stdOut, _ := term.StdStreams()

	//
	return execInternal(where, params, stdIn, stdOut)
}

func main() {
	_, stdout, stderr := term.StdStreams()
	logrus.SetOutput(stderr)

	err := dnetCommand(stdout, stderr)
	if err != nil {
		os.Exit(1)
	}
}

// NewCobraAdaptor returns a new handler
func NewCobraAdaptor(clientFlags *cliflags.ClientFlags) CobraAdaptor {
	stdin, stdout, stderr := term.StdStreams()
	dockerCli := client.NewDockerCli(stdin, stdout, stderr, clientFlags)

	var rootCmd = &cobra.Command{
		Use:           "docker",
		SilenceUsage:  true,
		SilenceErrors: true,
	}
	rootCmd.SetUsageTemplate(usageTemplate)
	rootCmd.SetHelpTemplate(helpTemplate)
	rootCmd.SetFlagErrorFunc(cli.FlagErrorFunc)
	rootCmd.SetOutput(stdout)
	rootCmd.AddCommand(
		container.NewAttachCommand(dockerCli),
		container.NewCreateCommand(dockerCli),
		container.NewDiffCommand(dockerCli),
		container.NewExportCommand(dockerCli),
		container.NewKillCommand(dockerCli),
		container.NewLogsCommand(dockerCli),
		container.NewPauseCommand(dockerCli),
		container.NewPortCommand(dockerCli),
		container.NewRenameCommand(dockerCli),
		container.NewRestartCommand(dockerCli),
		container.NewRmCommand(dockerCli),
		container.NewRunCommand(dockerCli),
		container.NewStartCommand(dockerCli),
		container.NewStatsCommand(dockerCli),
		container.NewStopCommand(dockerCli),
		container.NewTopCommand(dockerCli),
		container.NewUnpauseCommand(dockerCli),
		container.NewWaitCommand(dockerCli),
		image.NewBuildCommand(dockerCli),
		image.NewHistoryCommand(dockerCli),
		image.NewImagesCommand(dockerCli),
		image.NewLoadCommand(dockerCli),
		image.NewRemoveCommand(dockerCli),
		image.NewSaveCommand(dockerCli),
		image.NewSearchCommand(dockerCli),
		image.NewImportCommand(dockerCli),
		image.NewTagCommand(dockerCli),
		network.NewNetworkCommand(dockerCli),
		system.NewEventsCommand(dockerCli),
		system.NewVersionCommand(dockerCli),
		volume.NewVolumeCommand(dockerCli),
	)

	rootCmd.PersistentFlags().BoolP("help", "h", false, "Print usage")
	rootCmd.PersistentFlags().MarkShorthandDeprecated("help", "please use --help")

	return CobraAdaptor{
		rootCmd:   rootCmd,
		dockerCli: dockerCli,
	}
}

func newDockerClient() *client.DockerCli {
	// Set terminal emulation based on platform as required.
	stdin, stdout, stderr := term.StdStreams()

	setDefaultConfFlag(flTrustKey, defaultTrustKeyFile)

	if len(flHosts) > 1 {
		log.Fatal("Please specify only one -H")
	}
	protoAddrParts := strings.SplitN(flHosts[0], "://", 2)

	var (
		cli       *client.DockerCli
		tlsConfig tls.Config
	)
	tlsConfig.InsecureSkipVerify = true

	// Regardless of whether the user sets it to true or false, if they
	// specify --tlsverify at all then we need to turn on tls
	if flag.IsSet("-tlsverify") {
		*flTls = true
	}

	// If we should verify the server, we need to load a trusted ca
	if *flTlsVerify {
		certPool := x509.NewCertPool()
		file, err := ioutil.ReadFile(*flCa)
		if err != nil {
			log.Fatalf("Couldn't read ca cert %s: %s", *flCa, err)
		}
		certPool.AppendCertsFromPEM(file)
		tlsConfig.RootCAs = certPool
		tlsConfig.InsecureSkipVerify = false
	}

	// If tls is enabled, try to load and send client certificates
	if *flTls || *flTlsVerify {
		_, errCert := os.Stat(*flCert)
		_, errKey := os.Stat(*flKey)
		if errCert == nil && errKey == nil {
			*flTls = true
			cert, err := tls.LoadX509KeyPair(*flCert, *flKey)
			if err != nil {
				log.Fatalf("Couldn't load X509 key pair: %q. Make sure the key is encrypted", err)
			}
			tlsConfig.Certificates = []tls.Certificate{cert}
		}
		// Avoid fallback to SSL protocols < TLS1.0
		tlsConfig.MinVersion = tls.VersionTLS10
	}

	cli = client.NewDockerCli(stdin, stdout, stderr, *flTrustKey, protoAddrParts[0], protoAddrParts[1], &tlsConfig)
	return cli
}

func main() {
	if reexec.Init() {
		return
	}

	// Set terminal emulation based on platform as required.
	_, stdout, stderr := term.StdStreams()

	logrus.SetOutput(stderr)

	flag.Merge(flag.CommandLine, daemonCli.commonFlags.FlagSet)

	flag.Usage = func() {
		fmt.Fprint(stdout, "Usage: dockerd [ --help | -v | --version ]\n\n")
		fmt.Fprint(stdout, "A self-sufficient runtime for containers.\n\nOptions:\n")

		flag.CommandLine.SetOutput(stdout)
		flag.PrintDefaults()
	}
	flag.CommandLine.ShortUsage = func() {
		fmt.Fprint(stderr, "\nUsage:\tdockerd [OPTIONS]\n")
	}

	if err := flag.CommandLine.ParseFlags(os.Args[1:], false); err != nil {
		os.Exit(1)
	}

	if *flVersion {
		showVersion()
		return
	}

	if *flHelp {
		// if global flag --help is present, regardless of what other options and commands there are,
		// just print the usage.
		flag.Usage()
		return
	}

	// On Windows, this may be launching as a service or with an option to
	// register the service.
	stop, err := initService()
	if err != nil {
		logrus.Fatal(err)
	}

	if !stop {
		err = daemonCli.start()
		notifyShutdown(err)
		if err != nil {
			logrus.Fatal(err)
		}
	}
}

// Console
func Console(params string) error {

	// connect to the server; this will wait until a single read is returned from
	// the server (blocking)
	conn, data, err := connect(fmt.Sprintf("POST /exec?pid=%d&%v HTTP/1.1\r\n\r\n", os.Getpid(), params))
	if err != nil {
		return err
	}
	defer conn.Close()

	// begin watching for changes to the project
	go func() {
		if err := notifyutil.Watch(config.CWDir, NotifyServer); err != nil {
			fmt.Printf(err.Error())
		}
	}()

	//
	os.Stderr.WriteString(`+> Opening a nanobox console:


                                   **
                                ********
                             ***************
                          *********************
                            *****************
                          ::    *********    ::
                             ::    ***    ::
                           ++   :::   :::   ++
                              ++   :::   ++
                                 ++   ++
                                    +

                    _  _ ____ _  _ ____ ___  ____ _  _
                    |\ | |__| |\ | |  | |__) |  |  \/
                    | \| |  | | \| |__| |__) |__| _/\_
`)

	// get current term info
	stdIn, stdOut, _ := term.StdStreams()

	// connect a raw terminal; if no error is returned defer resetting the terminal
	state, err := terminal.Connect(stdIn, stdOut)
	if err == nil {
		defer terminal.Disconnect(stdIn, state)
	}

	// print the first read data from above
	os.Stderr.Write(data)

	//
	return pipeToConnection(conn, stdIn, stdOut)
}

// Console opens a secure console to a code or database service. For code
// services, a command is required. This command is executed as root in the
// context of the application root directory. For database services, no command
// is needed - instead, the appropriate command for the database type is run.
// For example, for a postgres database, psql is run.
func Console(serviceLabel string, command string, settings *models.Settings) {
	helpers.SignIn(settings)
	service := helpers.RetrieveServiceByLabel(serviceLabel, settings)
	if service == nil {
		fmt.Printf("Could not find a service with the label \"%s\"\n", serviceLabel)
		os.Exit(1)
	}
	fmt.Printf("Opening console to %s (%s)\n", serviceLabel, service.ID)
	task := helpers.RequestConsole(command, service.ID, settings)
	fmt.Print("Waiting for the console to be ready. This might take a minute.")

	ch := make(chan string, 1)
	go helpers.PollConsoleJob(task.ID, service.ID, ch, settings)
	jobID := <-ch
	defer helpers.DestroyConsole(jobID, service.ID, settings)
	creds := helpers.RetrieveConsoleTokens(jobID, service.ID, settings)

	creds.URL = strings.Replace(creds.URL, "http", "ws", 1)
	fmt.Println("Connecting...")

	// BEGIN websocket impl
	config, _ := websocket.NewConfig(creds.URL, "ws://localhost:9443/")
	config.TlsConfig = &tls.Config{
		MinVersion: tls.VersionTLS12,
	}
	config.Header["X-Console-Token"] = []string{creds.Token}
	ws, err := websocket.DialConfig(config)
	if err != nil {
		panic(err)
	}
	defer ws.Close()
	fmt.Println("Connection opened")

	stdin, stdout, _ := term.StdStreams()
	fdIn, isTermIn := term.GetFdInfo(stdin)
	if !isTermIn {
		panic(errors.New("StdIn is not a terminal"))
	}
	oldState, err := term.SetRawTerminal(fdIn)
	if err != nil {
		panic(err)
	}

	done := make(chan bool)
	msgCh := make(chan []byte, 2)
	go webSocketDaemon(ws, &stdout, done, msgCh)

	signal.Notify(make(chan os.Signal, 1), os.Interrupt)

	defer term.RestoreTerminal(fdIn, oldState)
	go termDaemon(&stdin, ws)
	<-done
}

func main() {
	if reexec.Init() {
		return
	}

	_, stdout, stderr := term.StdStreams()
	logrus.SetOutput(stderr)

	err := dnetApp(stdout, stderr)
	if err != nil {
		os.Exit(1)
	}
}

func runDockerCommand(c *cli.Context, cmd string) {
	_, stdout, stderr := term.StdStreams()
	oldcli := client.NewNetworkCli(stdout, stderr, epConn.httpCall)
	var args []string
	args = append(args, cmd)
	if c.Bool("h") {
		args = append(args, "--help")
	} else {
		args = append(args, c.Args()...)
	}
	if err := oldcli.Cmd("dnet", args...); err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
}

func promptForCredentials(settings *models.Settings) {
	var username string
	fmt.Print("Username: ")
	fmt.Scanln(&username)
	settings.Username = username
	fmt.Print("Password: ")
	var fd uintptr
	if runtime.GOOS == "windows" {
		stdIn, _, _ := term.StdStreams()
		fd, _ = term.GetFdInfo(stdIn)
	}
	bytes, _ := terminal.ReadPassword(int(fd))
	fmt.Println("")
	settings.Password = string(bytes)
}

func main() {
	if reexec.Init() {
		return
	}

	// Set terminal emulation based on platform as required.
	_, stdout, stderr := term.StdStreams()
	logrus.SetOutput(stderr)

	cmd := newDaemonCommand()
	cmd.SetOutput(stdout)
	if err := cmd.Execute(); err != nil {
		fmt.Fprintf(stderr, "%s\n", err)
		os.Exit(1)
	}
}

func NewKubectlServer() *Server {
	// need to use term.StdStreams to get the right IO refs on Windows
	stdin, stdout, stderr := term.StdStreams()
	cmd := cmd.NewKubectlCommand(cmdutil.NewFactory(nil), stdin, stdout, stderr)
	localFlags := cmd.LocalFlags()
	localFlags.SetInterspersed(false)

	return &Server{
		name:        "kubectl",
		SimpleUsage: "Kubernetes command line client",
		Long:        "Kubernetes command line client",
		Run: func(s *Server, args []string) error {
			cmd.SetArgs(args)
			return cmd.Execute()
		},
		flags: localFlags,
	}
}