Golang Context.GlobalString方法代碼示例

func getStore(c *cli.Context) persist.Store {
	certInfo := getCertPathInfoFromContext(c)
	return &persist.Filestore{
		Path:             c.GlobalString("storage-path"),
		CaCertPath:       certInfo.CaCertPath,
		CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
	}
}

// Returns the cert paths.
// codegangsta/cli will not set the cert paths if the storage-path is set to
// something different so we cannot use the paths in the global options. le
// sigh.
func getCertPathInfoFromContext(c *cli.Context) cert.CertPathInfo {
	caCertPath := c.GlobalString("tls-ca-cert")
	caKeyPath := c.GlobalString("tls-ca-key")
	clientCertPath := c.GlobalString("tls-client-cert")
	clientKeyPath := c.GlobalString("tls-client-key")

	if caCertPath == "" {
		caCertPath = filepath.Join(mcndirs.GetMachineCertDir(), "ca.pem")
	}

	if caKeyPath == "" {
		caKeyPath = filepath.Join(mcndirs.GetMachineCertDir(), "ca-key.pem")
	}

	if clientCertPath == "" {
		clientCertPath = filepath.Join(mcndirs.GetMachineCertDir(), "cert.pem")
	}

	if clientKeyPath == "" {
		clientKeyPath = filepath.Join(mcndirs.GetMachineCertDir(), "key.pem")
	}

	return cert.CertPathInfo{
		CaCertPath:       caCertPath,
		CaPrivateKeyPath: caKeyPath,
		ClientCertPath:   clientCertPath,
		ClientKeyPath:    clientKeyPath,
	}
}

func cmdCreateInner(c *cli.Context) {
	if len(c.Args()) > 1 {
		fatalf("Invalid command line. Found extra arguments %v", c.Args()[1:])
	}

	name := c.Args().First()
	driverName := c.String("driver")
	certInfo := getCertPathInfoFromContext(c)

	storePath := c.GlobalString("storage-path")

	store := &persist.Filestore{
		Path:             storePath,
		CaCertPath:       certInfo.CaCertPath,
		CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
	}

	if name == "" {
		cli.ShowCommandHelp(c, "create")
		fatal("Error: No machine name specified.")
	}

	validName := host.ValidateHostName(name)
	if !validName {
		fatal("Error creating machine: ", mcnerror.ErrInvalidHostname)
	}

	if err := validateSwarmDiscovery(c.String("swarm-discovery")); err != nil {
		fatalf("Error parsing swarm discovery: %s", err)
	}

	// TODO: Fix hacky JSON solution
	bareDriverData, err := json.Marshal(&drivers.BaseDriver{
		MachineName: name,
		StorePath:   c.GlobalString("storage-path"),
	})
	if err != nil {
		fatalf("Error attempting to marshal bare driver data: %s", err)
	}

	driver, err := newPluginDriver(driverName, bareDriverData)
	if err != nil {
		fatalf("Error loading driver %q: %s", driverName, err)
	}

	h, err := store.NewHost(driver)
	if err != nil {
		fatalf("Error getting new host: %s", err)
	}

	h.HostOptions = &host.HostOptions{
		AuthOptions: &auth.AuthOptions{
			CertDir:          mcndirs.GetMachineCertDir(),
			CaCertPath:       certInfo.CaCertPath,
			CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
			ClientCertPath:   certInfo.ClientCertPath,
			ClientKeyPath:    certInfo.ClientKeyPath,
			ServerCertPath:   filepath.Join(mcndirs.GetMachineDir(), name, "server.pem"),
			ServerKeyPath:    filepath.Join(mcndirs.GetMachineDir(), name, "server-key.pem"),
			StorePath:        filepath.Join(mcndirs.GetMachineDir(), name),
		},
		EngineOptions: &engine.EngineOptions{
			ArbitraryFlags:   c.StringSlice("engine-opt"),
			Env:              c.StringSlice("engine-env"),
			InsecureRegistry: c.StringSlice("engine-insecure-registry"),
			Labels:           c.StringSlice("engine-label"),
			RegistryMirror:   c.StringSlice("engine-registry-mirror"),
			StorageDriver:    c.String("engine-storage-driver"),
			TlsVerify:        true,
			InstallURL:       c.String("engine-install-url"),
		},
		SwarmOptions: &swarm.SwarmOptions{
			IsSwarm:        c.Bool("swarm"),
			Image:          c.String("swarm-image"),
			Master:         c.Bool("swarm-master"),
			Discovery:      c.String("swarm-discovery"),
			Address:        c.String("swarm-addr"),
			Host:           c.String("swarm-host"),
			Strategy:       c.String("swarm-strategy"),
			ArbitraryFlags: c.StringSlice("swarm-opt"),
		},
	}

	exists, err := store.Exists(h.Name)
	if err != nil {
		fatalf("Error checking if host exists: %s", err)
	}
	if exists {
		fatal(mcnerror.ErrHostAlreadyExists{
			Name: h.Name,
		})
	}

	// driverOpts is the actual data we send over the wire to set the
	// driver parameters (an interface fulfilling drivers.DriverOptions,
	// concrete type rpcdriver.RpcFlags).
	mcnFlags := driver.GetCreateFlags()
	driverOpts := getDriverOpts(c, mcnFlags)

	if err := h.Driver.SetConfigFromFlags(driverOpts); err != nil {
//.........這裏部分代碼省略.........