Example #1
0
func startGitDaemon(absolutePath string) error {
	daemonSentinel := path.Join(absolutePath, ".git",
		"git-daemon-export-ok")
	if _, err := os.Stat(daemonSentinel); os.IsNotExist(err) {
		_, err := os.Create(daemonSentinel)
		if err != nil {
			log.Fatalf("Unable to set up git daemon")
		}
	}
	cmd := exec.Command("git", "daemon", "--reuseaddr",
		fmt.Sprintf("--base-path=%s/..", absolutePath),
		absolutePath)
	err := cmd.Start()
	return err
}
Example #2
0
func main() {
	// Start changes handler
	var (
		username  = flag.String("user", "", "Username to report when sending changes to the network")
		groupIP   = flag.String("ip", gitsync.IP4MulticastAddr.IP.String(), "Multicast IP to connect to")
		groupPort = flag.Int("port", gitsync.IP4MulticastAddr.Port, "Port to use for network IO")
		logLevel  = flag.String("loglevel", "info", "Lowest log level to emit. Can be one of debug, info, warning, error.")
		logSocket = flag.String("logsocket", "", "proto://address:port target to send logs to")
		logFile   = flag.String("logfile", "", "path to file to log to")
		webPort   = flag.Int("webport", 0, "Port for local webserver. Off by default")
	)
	flag.Parse()

	if len(flag.Args()) == 0 {
		fatalf("No Git directory supplied")
	}

	if err := setupLogging(*logLevel, *logSocket, *logFile); err != nil {
		fatalf("Cannot setup logging: %s", err)
	}

	log.Info("Starting up")
	defer log.Info("Exiting")

	var (
		err       error
		dirName   = flag.Args()[0] // directories to watch
		userId    string           // username
		groupAddr *net.UDPAddr     // network address to connect to

		// channels to move change messages around
		remoteChanges   = make(chan gitsync.GitChange, 128)
		toRemoteChanges = make(chan gitsync.GitChange, 128)
	)
	dirName = util.AbsPath(dirName)

	// get the user's name
	if *username != "" {
		userId = *username
	} else if user, err := user.Current(); err == nil {
		userId = user.Username
	} else {
		fatalf("Cannot get username: %v", err)
	}

	if groupAddr, err = net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", *groupIP, *groupPort)); err != nil {
		fatalf("Cannot resolve address %v:%v: %v", *groupIP, *groupPort, err)
	}

	// start directory poller
	repo, err := gitsync.NewCliRepo(userId, dirName)
	if err != nil {
		fatalf("Cannot open repo: %s", err)
	}

	if err = startGitDaemon(dirName); err != nil {
		log.Fatalf("Unable to start git daemon")
	}

	go gitsync.PollDirectory(log.Global, dirName, repo, toRemoteChanges, 1*time.Second)
	go gitsync.NetIO(log.Global, repo, groupAddr, remoteChanges, toRemoteChanges)
	go ReceiveChanges(remoteChanges, uint16(*webPort), repo)

	s := make(chan os.Signal, 1)
	signal.Notify(s, os.Kill, os.Interrupt, syscall.SIGUSR1)
	for {
		c := <-s
		cleanup(dirName)
		if (c == os.Kill) || (c == os.Interrupt) {
			break
		}

	}
}
Example #3
0
// fatalf logs a fatal error and exits
func fatalf(format string, args ...interface{}) {
	fmt.Fprintf(os.Stderr, format+"\n", args...)
	log.Fatalf(format, args...)
}