Beispiel #1
0
func main() {
	ctx.LoadFromHome()
	setupLogging()

	app := os.Args[0]
	args := os.Args[1:]
	for _, arg := range args {
		if arg == "-v" || arg == "--version" {
			newArgs := make([]string, len(args)+1)
			newArgs[0] = "version"
			copy(newArgs[1:], args)
			args = newArgs
			break
		}

		if arg == "--generate-bash-completion" {
			for name := range commands {
				fmt.Println(name)
			}
			for _, cmd := range ctx.Aliases() {
				fmt.Println(cmd)
			}
			return
		}
	}

	c := cli.NewCLI(app, gafka.Version+"-"+gafka.BuildId+"-"+gafka.BuiltAt)
	c.Args = os.Args[1:]
	if len(os.Args) > 1 {
		// command given, convert alias
		if alias, present := ctx.Alias(os.Args[1]); present {
			cargs := make([]string, 0)
			cargs = append(cargs, strings.Split(alias, " ")...)
			if len(os.Args) > 2 {
				cargs = append(cargs, os.Args[2:]...)
			}
			c.Args = cargs
		}
	}
	c.Commands = commands
	c.HelpFunc = func(m map[string]cli.CommandFactory) string {
		var buf bytes.Buffer
		buf.WriteString(fmt.Sprintf("Unified multi-datacenter multi-cluster kafka swiss-knife management console\n\n"))
		buf.WriteString(cli.BasicHelpFunc(app)(m))
		return buf.String()
	}

	exitCode, err := c.Run()
	if err != nil {
		fmt.Fprintf(os.Stderr, "%+v\n", err)
		os.Exit(1)
	} else if c.IsVersion() {
		os.Exit(0)
	}

	os.Exit(exitCode)
}
Beispiel #2
0
func (this *Console) doHelp() {
	outline := ""
	width := 0

	cmds := make([]string, 0)
	for cmd, _ := range this.Cmds {
		cmds = append(cmds, cmd)
	}
	for _, cmd := range ctx.Aliases() {
		cmds = append(cmds, cmd)
	}
	cmds = append(cmds, this.builtinCmds...)
	sort.Strings(cmds)

	for _, cmd := range cmds {
		outline += cmd + " "
		width += len(cmd)
		if width > 80 {
			outline += "\n"
			width = 0
		}
	}
	this.Ui.Output(outline)
}
Beispiel #3
0
func (this *Console) Run(args []string) (exitCode int) {
	this.builtinCmds = []string{"help", "history"}

	this.Line = liner.NewLiner()
	this.Line.SetCtrlCAborts(false)
	this.Line.SetCompleter(func(line string) (c []string) {
		for cmd, _ := range this.Cmds {
			if strings.HasPrefix(cmd, strings.ToLower(line)) {
				c = append(c, cmd)
			}
		}
		for _, cmd := range ctx.Aliases() {
			if strings.HasPrefix(cmd, strings.ToLower(line)) {
				c = append(c, cmd)
			}
		}
		for _, cmd := range this.builtinCmds {
			if strings.HasPrefix(cmd, strings.ToLower(line)) {
				c = append(c, cmd)
			}
		}
		c = append(c, this.builtinCmds...)
		return
	})
	defer this.Line.Close()

	if usr, err := user.Current(); err == nil {
		this.historyFile = filepath.Join(usr.HomeDir, fmt.Sprintf(".%s_history", this.Cmd))
		if f, e := os.Open(this.historyFile); e == nil {
			this.Line.ReadHistory(f)
			f.Close()
		}
	}

	for {
		line, err := this.Line.Prompt(fmt.Sprintf("%s> ", this.Cmd))
		if err != nil {
			break
		}

		line = strings.TrimSpace(line)
		if line == "" {
			continue
		}
		if line == "bye" || line == "q" || line == "quit" || line == "exit" {
			break
		}

		if this.runCommand(line) {
			// write out the history
			if len(this.historyFile) > 0 {
				this.Line.AppendHistory(line)
				if f, e := os.Create(this.historyFile); e == nil {
					this.Line.WriteHistory(f)
					f.Close()
				}
			}
		}
	}
	return
}
Beispiel #4
0
func main() {
	ctx.LoadFromHome()
	setupLogging()

	app := os.Args[0]
	args := os.Args[1:]
	for _, arg := range args {
		if arg == "-v" || arg == "--version" {
			newArgs := make([]string, len(args)+1)
			newArgs[0] = "version"
			copy(newArgs[1:], args)
			args = newArgs
			break
		}

		if arg == "--generate-bash-completion" {
			if len(args) > 1 {
				// contextual auto complete
				lastArg := args[len(args)-2]
				switch lastArg {
				case "-z": // zone
					for _, zone := range ctx.SortedZones() {
						fmt.Println(zone)
					}
					return

				case "-c": // cluster
					zone := ctx.ZkDefaultZone()
					for i := 0; i < len(args)-1; i++ {
						if args[i] == "-z" {
							zone = args[i+1]
						}
					}
					zkzone := zk.NewZkZone(zk.DefaultConfig(zone, ctx.ZoneZkAddrs(zone)))
					zkzone.ForSortedClusters(func(zkcluster *zk.ZkCluster) {
						fmt.Println(zkcluster.Name())
					})
					return

				case "-t": // topic
					zone := ctx.ZkDefaultZone()
					var cluster string
					for i := 0; i < len(args)-1; i++ {
						if args[i] == "-z" {
							zone = args[i+1]
						}

						if args[i] == "-c" {
							cluster = args[i+1]
						}
					}
					if cluster != "" {
						zkzone := zk.NewZkZone(zk.DefaultConfig(zone, ctx.ZoneZkAddrs(zone)))
						zkcluster := zkzone.NewCluster(cluster)
						topics, _ := zkcluster.Topics()
						for _, t := range topics {
							fmt.Println(t)
						}
					}
					return
				}

			}

			for name := range commands {
				fmt.Println(name)
			}
			for _, cmd := range ctx.Aliases() {
				fmt.Println(cmd)
			}
			return
		}
	}

	c := cli.NewCLI(app, gafka.Version+"-"+gafka.BuildId+"-"+gafka.BuiltAt)
	c.Args = os.Args[1:]
	if len(os.Args) > 1 {
		// command given, convert alias
		if alias, present := ctx.Alias(os.Args[1]); present {
			var cargs []string
			cargs = append(cargs, strings.Split(alias, " ")...)
			if len(os.Args) > 2 {
				cargs = append(cargs, os.Args[2:]...)
			}
			c.Args = cargs
		}
	}
	c.Commands = commands
	c.HelpFunc = func(m map[string]cli.CommandFactory) string {
		var buf bytes.Buffer
		buf.WriteString(fmt.Sprintf("Unified multi-datacenter multi-cluster kafka swiss-knife management console\n\n"))
		buf.WriteString(cli.BasicHelpFunc(app)(m))
		return buf.String()
	}

	exitCode, err := c.Run()
	if err != nil {
		fmt.Fprintf(os.Stderr, "%+v\n", err)
		os.Exit(1)
	} else if c.IsVersion() {
		os.Exit(0)
	}

	os.Exit(exitCode)
}