client

var ConfigcheckCmd = &cli.Subcommand{
	Use:   "configcheck",
	Short: "check if config can be parsed without errors",
	SetupFlags: func(f *pflag.FlagSet) {
		f.StringVar(&configcheckArgs.format, "format", "", "dump parsed config object [pretty|yaml|json]")
		f.StringVar(&configcheckArgs.what, "what", "all", "what to print [all|config|jobs|logging]")
	},
	Run: func(subcommand *cli.Subcommand, args []string) error {
		formatMap := map[string]func(interface{}){
			"": func(i interface{}) {},
			"pretty": func(i interface{}) {
				if _, err := pretty.Println(i); err != nil {
					panic(err)
				}
			},
			"json": func(i interface{}) {
				if err := json.NewEncoder(os.Stdout).Encode(subcommand.Config()); err != nil {
					panic(err)
				}
			},
			"yaml": func(i interface{}) {
				if err := yaml.NewEncoder(os.Stdout).Encode(subcommand.Config()); err != nil {
					panic(err)
				}
			},
		}

		formatter, ok := formatMap[configcheckArgs.format]
		if !ok {
			return fmt.Errorf("unsupported --format %q", configcheckArgs.format)
		}

		var hadErr bool

		confJobs, err := job.JobsFromConfig(subcommand.Config())
		if err != nil {
			err := errors.Wrap(err, "cannot build jobs from config")
			if configcheckArgs.what == "jobs" {
				return err
			} else {
				fmt.Fprintf(os.Stderr, "%s\n", err)
				confJobs = nil
				hadErr = true
			}
		}

		outlets, err := logging.OutletsFromConfig(*subcommand.Config().Global.Logging)
		if err != nil {
			err := errors.Wrap(err, "cannot build logging from config")
			if configcheckArgs.what == "logging" {
				return err
			} else {
				fmt.Fprintf(os.Stderr, "%s\n", err)
				outlets = nil
				hadErr = true
			}
		}

		whatMap := map[string]func(){
			"all": func() {
				o := struct {
					config  *config.Config
					jobs    []job.Job
					logging *logger.Outlets
				}{
					subcommand.Config(),
					confJobs,
					outlets,
				}
				formatter(o)
			},
			"config": func() {
				formatter(subcommand.Config())
			},
			"jobs": func() {
				formatter(confJobs)
			},
			"logging": func() {
				formatter(outlets)
			},
		}

		wf, ok := whatMap[configcheckArgs.what]
		if !ok {
			return fmt.Errorf("unsupported --format %q", configcheckArgs.what)
		}
		wf()

		if hadErr {
			return fmt.Errorf("config parsing failed")
		} else {
			return nil
		}
	},
}

var (
	MigrateCmd = &cli.Subcommand{
		Use:   "migrate",
		Short: "perform migration of the on-disk / zfs properties",
		SetupSubcommands: func() []*cli.Subcommand {
			return migrations
		},
	}
)

var PprofCmd = &cli.Subcommand{
	Use:   "pprof off | [on TCP_LISTEN_ADDRESS]",
	Short: "start a http server exposing go-tool-compatible profiling endpoints at TCP_LISTEN_ADDRESS",
	Run: func(subcommand *cli.Subcommand, args []string) error {
		if len(args) < 1 {
			goto enargs
		}
		switch args[0] {
		case "on":
			pprofArgs.Run = true
			if len(args) != 2 {
				return errors.New("must specify TCP_LISTEN_ADDRESS as second positional argument")
			}
			pprofArgs.HttpListenAddress = args[1]
		case "off":
			if len(args) != 1 {
				goto enargs
			}
			pprofArgs.Run = false
		}

		RunPProf(subcommand.Config())
		return nil
	enargs:
		return errors.New("invalid number of positional arguments")

	},
}

var SignalCmd = &cli.Subcommand{
	Use:   "signal [wakeup|reset] JOB",
	Short: "wake up a job from wait state or abort its current invocation",
	Run: func(subcommand *cli.Subcommand, args []string) error {
		return runSignalCmd(subcommand.Config(), args)
	},
}

var StatusCmd = &cli.Subcommand{
	Use:   "status",
	Short: "show job activity or dump as JSON for monitoring",
	SetupFlags: func(f *pflag.FlagSet) {
		f.BoolVar(&statusFlags.Raw, "raw", false, "dump raw status description from zrepl daemon")
	},
	Run: runStatus,
}

var StdinserverCmd = &cli.Subcommand{
	Use:   "stdinserver CLIENT_IDENTITY",
	Short: "stdinserver transport mode (started from authorized_keys file as forced command)",
	Run: func(subcommand *cli.Subcommand, args []string) error {
		return runStdinserver(subcommand.Config(), args)
	},
}

var TestCmd = &cli.Subcommand{
	Use: "test",
	SetupSubcommands: func() []*cli.Subcommand {
		return []*cli.Subcommand{testFilter, testPlaceholder}
	},
}

var VersionCmd = &cli.Subcommand{
	Use:             "version",
	Short:           "print version of zrepl binary and running daemon",
	NoRequireConfig: true,
	SetupFlags: func(f *pflag.FlagSet) {
		f.StringVar(&versionArgs.Show, "show", "", "version info to show (client|daemon)")
	},
	Run: func(subcommand *cli.Subcommand, args []string) error {
		versionArgs.Config = subcommand.Config()
		versionArgs.ConfigErr = subcommand.ConfigParsingError()
		return runVersionCmd()
	},
}