Golang App.Command方法代码示例

func newCmdPresenter(app *cli.App, maxNameLen int, cmdName string) (presenter cmdPresenter) {
	cmd := app.Command(cmdName)

	presenter.Name = presentCmdName(*cmd)
	padding := strings.Repeat(" ", maxNameLen-len(presenter.Name))
	presenter.Name = presenter.Name + padding
	presenter.Description = cmd.Description

	return
}

func GetByCmdName(app *cli.App, cmdName string) (cmd *cli.Command, err error) {
	cmd = app.Command(cmdName)
	if cmd == nil {
		for _, c := range app.Commands {
			if c.ShortName == cmdName {
				return &c, nil
			}
		}
		err = errors.New("Command not found")
	}
	return
}

func newAppPresenter(app *cli.App) (presenter appPresenter) {
	maxNameLen := 0
	for _, cmd := range app.Commands {
		name := presentCmdName(cmd)
		if utf8.RuneCountInString(name) > maxNameLen {
			maxNameLen = len(name)
		}
	}

	presentCommand := func(commandName string) (presenter cmdPresenter) {
		cmd := app.Command(commandName)
		presenter.Name = presentCmdName(*cmd)
		padding := strings.Repeat(" ", maxNameLen-utf8.RuneCountInString(presenter.Name))
		presenter.Name = presenter.Name + padding
		presenter.Description = cmd.Description
		return
	}

	presentNonCodegangstaCommand := func(commandName string) (presenter cmdPresenter) {
		cmd := command_registry.Commands.FindCommand(commandName)
		presenter.Name = cmd.MetaData().Name
		padding := strings.Repeat(" ", maxNameLen-utf8.RuneCountInString(presenter.Name))
		presenter.Name = presenter.Name + padding
		presenter.Description = cmd.MetaData().Description
		return
	}

	presentPluginCommands := func() []cmdPresenter {
		pluginConfig := plugin_config.NewPluginConfig(func(err error) {
			//fail silently when running help?
		})

		plugins := pluginConfig.Plugins()
		var presenters []cmdPresenter
		var pluginPresenter cmdPresenter

		for _, pluginMetadata := range plugins {
			for _, cmd := range pluginMetadata.Commands {

				if cmd.Alias == "" {
					pluginPresenter.Name = cmd.Name
				} else {
					pluginPresenter.Name = cmd.Name + ", " + cmd.Alias
				}

				padding := strings.Repeat(" ", maxNameLen-utf8.RuneCountInString(pluginPresenter.Name))
				pluginPresenter.Name = pluginPresenter.Name + padding
				pluginPresenter.Description = cmd.HelpText
				presenters = append(presenters, pluginPresenter)
			}
		}

		return presenters
	}
	presenter.Name = app.Name
	presenter.Flags = app.Flags
	presenter.Usage = app.Usage
	presenter.Version = app.Version
	presenter.Compiled = app.Compiled
	presenter.Commands = []groupedCommands{
		{
			Name: T("GETTING STARTED"),
			CommandSubGroups: [][]cmdPresenter{
				{
					presentNonCodegangstaCommand("login"),
					presentNonCodegangstaCommand("logout"),
					presentNonCodegangstaCommand("passwd"),
					presentNonCodegangstaCommand("target"),
				}, {
					presentNonCodegangstaCommand("api"),
					presentNonCodegangstaCommand("auth"),
				},
			},
		}, {
			Name: T("APPS"),
			CommandSubGroups: [][]cmdPresenter{
				{
					presentNonCodegangstaCommand("apps"),
					presentNonCodegangstaCommand("app"),
				}, {
					presentCommand("push"),  //needs start/restart ...
					presentCommand("scale"), //needs stop/restart
					presentNonCodegangstaCommand("delete"),
					presentNonCodegangstaCommand("rename"),
				}, {
					presentCommand("start"),
					presentCommand("stop"),
					presentCommand("restart"), //needs start
					presentCommand("restage"),
					presentCommand("restart-app-instance"),
				}, {
					presentNonCodegangstaCommand("events"),
					presentNonCodegangstaCommand("files"),
					presentNonCodegangstaCommand("logs"),
				}, {
					presentNonCodegangstaCommand("env"),
					presentNonCodegangstaCommand("set-env"),
					presentNonCodegangstaCommand("unset-env"),
				}, {
					presentNonCodegangstaCommand("stacks"),
//.........这里部分代码省略.........

func newAppPresenter(app *cli.App) (presenter appPresenter) {
	maxNameLen := 0
	for _, cmd := range app.Commands {
		name := presentCmdName(cmd)
		if utf8.RuneCountInString(name) > maxNameLen {
			maxNameLen = len(name)
		}
	}

	presentCommand := func(commandName string) (presenter cmdPresenter) {
		cmd := app.Command(commandName)
		presenter.Name = presentCmdName(*cmd)

		padding := strings.Repeat(" ", maxNameLen-utf8.RuneCountInString(presenter.Name))
		presenter.Name = presenter.Name + padding
		presenter.Description = cmd.Usage

		return
	}

	presenter.Name = app.Name
	presenter.Flags = app.Flags
	presenter.Usage = app.Usage
	presenter.Version = app.Version
	presenter.Authors = app.Authors
	presenter.Commands = []groupedCommands{
		{
			Name: "TARGET LATTICE",
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("target"),
				},
			},
		}, {
			Name: "MANAGE DOCKER APPS",
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("create"),
				},
			},
		}, {
			Name: "MANAGE DROPLETS",
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("build-droplet"),
					presentCommand("export-droplet"),
					presentCommand("import-droplet"),
					presentCommand("launch-droplet"),
					presentCommand("list-droplets"),
					presentCommand("remove-droplet"),
				},
			},
		}, {
			Name: "MANAGE ALL APPS",
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("remove"),
					presentCommand("scale"),
					presentCommand("update-routes"),
					presentCommand("update"),
				},
			},
		}, {
			Name: "TASKS",
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("cancel-task"),
					presentCommand("delete-task"),
					presentCommand("task"),
				},
			},
		}, {
			Name: "STREAM LOGS",
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("logs"),
				},
			},
		}, {
			Name: "SEE WHATS RUNNING",
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("cells"),
					presentCommand("list"),
					presentCommand("status"),
					presentCommand("visualize"),
				},
			},
		}, {
			Name: "SSH INTO AN APP CONTAINER",
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("ssh"),
				},
			},
		}, {
			Name: "ADVANCED",
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("submit-lrp"),
//.........这里部分代码省略.........

func newAppPresenter(app *cli.App) (presenter appPresenter) {
	maxNameLen := 0
	for _, cmd := range app.Commands {
		name := presentCmdName(cmd)
		if utf8.RuneCountInString(name) > maxNameLen {
			maxNameLen = len(name)
		}
	}

	presentCommand := func(commandName string) (presenter cmdPresenter) {
		cmd := app.Command(commandName)
		presenter.Name = presentCmdName(*cmd)
		padding := strings.Repeat(" ", maxNameLen-utf8.RuneCountInString(presenter.Name))
		presenter.Name = presenter.Name + padding
		presenter.Description = cmd.Description
		return
	}

	presenter.Name = app.Name
	presenter.Flags = app.Flags
	presenter.Usage = app.Usage
	presenter.Version = app.Version
	presenter.Compiled = app.Compiled
	presenter.Commands = []groupedCommands{
		{
			Name: T("GETTING STARTED"),
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("login"),
					presentCommand("logout"),
					presentCommand("passwd"),
					presentCommand("target"),
				}, {
					presentCommand("api"),
					presentCommand("auth"),
				},
			},
		}, {
			Name: T("APPS"),
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("apps"),
					presentCommand("app"),
				}, {
					presentCommand("push"),
					presentCommand("scale"),
					presentCommand("delete"),
					presentCommand("rename"),
				}, {
					presentCommand("start"),
					presentCommand("stop"),
					presentCommand("restart"),
					presentCommand("restage"),
				}, {
					presentCommand("events"),
					presentCommand("files"),
					presentCommand("logs"),
				}, {
					presentCommand("env"),
					presentCommand("set-env"),
					presentCommand("unset-env"),
				}, {
					presentCommand("stacks"),
				},
			},
		}, {
			Name: T("SERVICES"),
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("marketplace"),
					presentCommand("services"),
					presentCommand("service"),
				}, {
					presentCommand("create-service"),
					presentCommand("delete-service"),
					presentCommand("rename-service"),
				}, {
					presentCommand("bind-service"),
					presentCommand("unbind-service"),
				}, {
					presentCommand("create-user-provided-service"),
					presentCommand("update-user-provided-service"),
				},
			},
		}, {
			Name: T("ORGS"),
			CommandSubGroups: [][]cmdPresenter{
				{
					presentCommand("orgs"),
					presentCommand("org"),
				}, {
					presentCommand("create-org"),
					presentCommand("delete-org"),
					presentCommand("rename-org"),
				},
			},
		}, {
			Name: T("SPACES"),
			CommandSubGroups: [][]cmdPresenter{
				{
//.........这里部分代码省略.........

		})

		It("returns if multiple bad flags are passed", func() {
			cliAppArgs := []string{"ltc", "create", "--badflag1", "--badflag2"}
			flags := main.GetCommandFlags(cliApp, cliAppArgs[1])
			badFlags := main.MatchArgAndFlags(flags, cliAppArgs[2:])
			main.InjectHelpTemplate(badFlags)

			Expect(badFlags).To(Equal("Unknown flags: \"--badflag1\", \"--badflag2\""))
		})
	})

	Describe("GetCommandFlags", func() {
		It("returns flags string slice for a given command list of type Flag", func() {
			flagList := main.GetCommandFlags(cliApp, "create")
			cmd := cliApp.Command("create")
			for _, flag := range cmd.Flags {
				switch t := flag.(type) {
				default:
					Fail("unhandled flag type")
				case cli.StringSliceFlag:
					Expect(flagList).Should(ContainElement(t.Name))
				case cli.IntFlag:
					Expect(flagList).Should(ContainElement(t.Name))
				case cli.StringFlag:
					Expect(flagList).Should(ContainElement(t.Name))
				case cli.BoolFlag:
					Expect(flagList).Should(ContainElement(t.Name))
				case cli.DurationFlag:
					Expect(flagList).Should(ContainElement(t.Name))
				}