Exemplo n.º 1
0
func parseLogFlags(args logOptionsType) error {
	var logOptCount int

	if *args.logLevel != "" {
		level, err := log.ParseLevel(*args.logLevel)
		if err != nil {
			return err
		}
		log.SetLevel(level)
		logOptCount++
	}

	if *args.info {
		log.SetLevel(log.InfoLevel)
		logOptCount++
	}

	if *args.debug {
		log.SetLevel(log.DebugLevel)
		logOptCount++
	}

	if logOptCount > 1 {
		return errMsgIncompatibleLogOptions
	} else if logOptCount == 0 {
		// set info as a default log level
		log.SetLevel(log.InfoLevel)
	}

	if *args.logFile != "" {
		fd, err := os.Create(*args.logFile)
		if err != nil {
			return err
		}
		log.SetOutput(fd)
	}

	if *args.logModules != "" {
		modules := strings.Split(*args.logModules, ",")
		log.SetModuleFilter(modules)
	}

	if !*args.noSyslog {
		if err := log.AddSyslogHook(); err != nil {
			log.Warnf("Could not connect to syslog daemon: %s. "+
				"(use -no-syslog to disable completely)",
				err.Error())
		}
	}

	return nil
}
Exemplo n.º 2
0
func argsParse(args []string) (runOptionsType, error) {
	var runOptions runOptionsType

	parsing := flag.NewFlagSet("mender", flag.ContinueOnError)

	// FLAGS ---------------------------------------------------------------

	committing := parsing.Bool("commit", false, "Commit current update.")

	debug := parsing.Bool("debug", false, "Debug log level. This is a "+
		"shorthand for '-l debug'.")

	info := parsing.Bool("info", false, "Info log level. This is a "+
		"shorthand for '-l info'.")

	imageFile := parsing.String("rootfs", "",
		"Root filesystem URI to use for update. Can be either a local "+
			"file or a URL.")

	logLevel := parsing.String("log-level", "", "Log level, which can be "+
		"'debug', 'info', 'warning', 'error', 'fatal' or 'panic'. "+
		"Earlier log levels will also log the subsequent levels (so "+
		"'debug' will log everything). The default log level is "+
		"'warning'.")

	logModules := parsing.String("log-modules", "", "Filter logging by "+
		"module. This is a comma separated list of modules to log, "+
		"other modules will be omitted. To see which modules are "+
		"available, take a look at a non-filtered log and select "+
		"the modules appropriate for you.")

	noSyslog := parsing.Bool("no-syslog", false, "Disable logging to "+
		"syslog. Note that debug message are never logged to syslog.")

	logFile := parsing.String("log-file", "", "File to log to.")

	// PARSING -------------------------------------------------------------

	if err := parsing.Parse(args); err != nil {
		return runOptions, err
	}

	// FLAG LOGIC ----------------------------------------------------------

	var logOptCount int = 0

	if *logLevel != "" {
		level, err := log.ParseLevel(*logLevel)
		if err != nil {
			return runOptions, err
		}
		log.SetLevel(level)
		logOptCount += 1
	}

	if *info {
		log.SetLevel(log.InfoLevel)
		logOptCount += 1
	}

	if *debug {
		log.SetLevel(log.DebugLevel)
		logOptCount += 1
	}

	if logOptCount > 1 {
		return runOptions, errMsgIncompatibleLogOptions
	} else if logOptCount == 0 {
		// Default log level.
		log.SetLevel(log.WarnLevel)
	}

	if *logFile != "" {
		fd, err := os.Create(*logFile)
		if err != nil {
			return runOptions, err
		}
		log.SetOutput(fd)
	}

	if *logModules != "" {
		modules := strings.Split(*logModules, ",")
		log.SetModuleFilter(modules)
	}

	if !*noSyslog {
		if err := log.AddSyslogHook(); err != nil {
			log.Warnf("Could not connect to syslog daemon: %s. "+
				"(use -no-syslog to disable completely)",
				err.Error())
		}
	}

	if *imageFile == "" && !*committing {
		return runOptions, errMsgNoArgumentsGiven
	}

	runOptions.imageFile = *imageFile
	runOptions.committing = *committing

	return runOptions, nil
}