示例#1
0
func main() {
	// parse global arguments
	globalFlagset.Parse(os.Args[1:])

	var args = globalFlagset.Args()

	getFlagsFromEnv(cliName, globalFlagset)

	if globalFlags.Debug {
		log.SetVerbosity(1)
	}

	// no command specified - trigger help
	if len(args) < 1 {
		args = append(args, "help")
	}

	// deal specially with --version
	if globalFlags.Version {
		args[0] = "version"
	}

	var cmd *Command

	// determine which Command should be run
	for _, c := range commands {
		if c.Name == args[0] {
			cmd = c
			if err := c.Flags.Parse(args[1:]); err != nil {
				fmt.Println(err.Error())
				os.Exit(2)
			}
			break
		}
	}

	if cmd == nil {
		fmt.Printf("%v: unknown subcommand: %q\n", cliName, args[0])
		fmt.Printf("Run '%v help' for usage.\n", cliName)
		os.Exit(2)
	}

	if sharedFlags.Sign {
		fmt.Fprintln(os.Stderr, "WARNING: The signed/verified units feature is DEPRECATED and cannot be used.")
		os.Exit(2)
	}

	if cmd.Name != "help" && cmd.Name != "version" {
		var err error
		cAPI, err = getClient()
		if err != nil {
			msg := fmt.Sprintf("Unable to initialize client: %v\n", err)
			fmt.Fprint(os.Stderr, msg)
			os.Exit(1)
		}
	}

	os.Exit(cmd.Run(cmd.Flags.Args()))

}
示例#2
0
func getConfig(flagset *flag.FlagSet, userCfgFile string) (*config.Config, error) {
	opts := globalconf.Options{EnvPrefix: "FLEET_"}

	if userCfgFile != "" {
		// Fail hard if a user-provided config is not usable
		fi, err := os.Stat(userCfgFile)
		if err != nil {
			log.Fatalf("Unable to use config file %s: %v", userCfgFile, err)
		}
		if fi.IsDir() {
			log.Fatalf("Provided config %s is a directory, not a file", userCfgFile)
		}

		log.Infof("Using provided config file %s", userCfgFile)
		opts.Filename = userCfgFile

	} else if _, err := os.Stat(DefaultConfigFile); err == nil {
		log.Infof("Using default config file %s", DefaultConfigFile)
		opts.Filename = DefaultConfigFile
	} else {
		log.Infof("No provided or default config file found - proceeding without")
	}

	gconf, err := globalconf.NewWithOptions(&opts)
	if err != nil {
		return nil, err
	}

	gconf.ParseSet("", flagset)

	cfg := config.Config{
		Verbosity:               (*flagset.Lookup("verbosity")).Value.(flag.Getter).Get().(int),
		EtcdServers:             (*flagset.Lookup("etcd_servers")).Value.(flag.Getter).Get().(stringSlice),
		EtcdKeyPrefix:           (*flagset.Lookup("etcd_key_prefix")).Value.(flag.Getter).Get().(string),
		EtcdKeyFile:             (*flagset.Lookup("etcd_keyfile")).Value.(flag.Getter).Get().(string),
		EtcdCertFile:            (*flagset.Lookup("etcd_certfile")).Value.(flag.Getter).Get().(string),
		EtcdCAFile:              (*flagset.Lookup("etcd_cafile")).Value.(flag.Getter).Get().(string),
		EtcdRequestTimeout:      (*flagset.Lookup("etcd_request_timeout")).Value.(flag.Getter).Get().(float64),
		EngineReconcileInterval: (*flagset.Lookup("engine_reconcile_interval")).Value.(flag.Getter).Get().(float64),
		PublicIP:                (*flagset.Lookup("public_ip")).Value.(flag.Getter).Get().(string),
		RawMetadata:             (*flagset.Lookup("metadata")).Value.(flag.Getter).Get().(string),
		AgentTTL:                (*flagset.Lookup("agent_ttl")).Value.(flag.Getter).Get().(string),
		VerifyUnits:             (*flagset.Lookup("verify_units")).Value.(flag.Getter).Get().(bool),
		AuthorizedKeysFile:      (*flagset.Lookup("authorized_keys_file")).Value.(flag.Getter).Get().(string),
	}

	if cfg.VerifyUnits {
		log.Error("Config option verify_units is no longer supported - ignoring")
	}
	if len(cfg.AuthorizedKeysFile) > 0 {
		log.Error("Config option authorized_keys_file is no longer supported - ignoring")
	}

	log.SetVerbosity(cfg.Verbosity)
	return &cfg, nil
}
示例#3
0
func main() {
	// parse global arguments
	globalFlagset.Parse(os.Args[1:])

	var args = globalFlagset.Args()

	getFlagsFromEnv(cliName, globalFlagset)

	if globalFlags.Debug {
		log.SetVerbosity(1)
	}

	if globalFlags.Version {
		args = []string{"version"}
	} else if len(args) < 1 || globalFlags.Help {
		args = []string{"help"}
	}

	var cmd *Command

	// determine which Command should be run
	for _, c := range commands {
		if c.Name == args[0] {
			cmd = c
			if err := c.Flags.Parse(args[1:]); err != nil {
				stderr("%v", err)
				os.Exit(2)
			}
			break
		}
	}

	if cmd == nil {
		stderr("%v: unknown subcommand: %q", cliName, args[0])
		stderr("Run '%v help' for usage.", cliName)
		os.Exit(2)
	}

	if sharedFlags.Sign {
		stderr("WARNING: The signed/verified units feature is DEPRECATED and cannot be used.")
		os.Exit(2)
	}

	if cmd.Name != "help" && cmd.Name != "version" {
		var err error
		cAPI, err = getClient()
		if err != nil {
			stderr("Unable to initialize client: %v", err)
			os.Exit(1)
		}
	}

	os.Exit(cmd.Run(cmd.Flags.Args()))

}