Example #1
0
func main() {
	// Scans the arg list and sets up flags
	debug := flag.Bool("debug", false, "print debugging messages.")
	latencies := flag.Bool("latencies", false, "record operation latencies.")

	flag.Parse()
	if flag.NArg() < 2 {
		fmt.Fprintf(os.Stderr, "usage: %s MOUNTPOINT ZIP-FILE\n", os.Args[0])
		os.Exit(2)
	}

	var fs fuse.NodeFileSystem
	fs, err := zipfs.NewArchiveFileSystem(flag.Arg(1))
	if err != nil {
		fmt.Fprintf(os.Stderr, "NewArchiveFileSystem failed: %v\n", err)
		os.Exit(1)
	}

	state, _, err := fuse.MountNodeFileSystem(flag.Arg(0), fs, nil)
	if err != nil {
		fmt.Printf("Mount fail: %v\n", err)
		os.Exit(1)
	}

	state.SetRecordStatistics(*latencies)
	state.Debug = *debug
	state.Loop()
}
Example #2
0
func NewUnionFsFromRoots(roots []string, opts *UnionFsOptions, roCaching bool) (*UnionFs, os.Error) {
	fses := make([]fuse.FileSystem, 0)
	for i, r := range roots {
		var fs fuse.FileSystem
		fi, err := os.Stat(r)
		if err != nil {
			return nil, err
		}
		if fi.IsDirectory() {
			fs = fuse.NewLoopbackFileSystem(r)
		}
		if fs == nil {
			fs, err = zipfs.NewArchiveFileSystem(r)
		}
		if fs == nil {
			return nil, err

		}
		if i > 0 && roCaching {
			fs = NewCachingFileSystem(fs, 0)
		}

		fses = append(fses, fs)
	}

	return NewUnionFs(fses, *opts), nil
}
Example #3
0
func NewUnionFsFromRoots(roots []string, opts *UnionFsOptions) (*UnionFs, os.Error) {
	fses := make([]fuse.FileSystem, 0)
	for _, r := range roots {
		var fs fuse.FileSystem
		fi, err := os.Stat(r)
		if err != nil {
			return nil, err
		}
		if fi.IsDirectory() {
			fs = fuse.NewLoopbackFileSystem(r)
		}
		if fs == nil {
			fs, err = zipfs.NewArchiveFileSystem(r)
		}
		if fs == nil {
			return nil, err
		}

		fses = append(fses, fs)
	}

	identifier := fmt.Sprintf("%v", roots)
	return NewUnionFs(identifier, fses, *opts), nil
}
Example #4
0
func main() {
	// Scans the arg list and sets up flags
	debug := flag.Bool("debug", false, "print debugging messages.")
	profile := flag.String("profile", "", "record cpu profile.")
	mem_profile := flag.String("mem-profile", "", "record memory profile.")
	command := flag.String("run", "", "run this command after mounting.")
	ttl := flag.Float64("ttl", 1.0, "attribute/entry cache TTL.")
	flag.Parse()
	if flag.NArg() < 2 {
		fmt.Fprintf(os.Stderr, "usage: %s MOUNTPOINT ZIP-FILE\n", os.Args[0])
		os.Exit(2)
	}

	var profFile, memProfFile io.Writer
	var err error
	if *profile != "" {
		profFile, err = os.Create(*profile)
		if err != nil {
			log.Fatalf("os.Create: %v", err)
		}
	}
	if *mem_profile != "" {
		memProfFile, err = os.Create(*mem_profile)
		if err != nil {
			log.Fatalf("os.Create: %v", err)
		}
	}

	root, err := zipfs.NewArchiveFileSystem(flag.Arg(1))
	if err != nil {
		fmt.Fprintf(os.Stderr, "NewArchiveFileSystem failed: %v\n", err)
		os.Exit(1)
	}

	opts := &nodefs.Options{
		AttrTimeout:  time.Duration(*ttl * float64(time.Second)),
		EntryTimeout: time.Duration(*ttl * float64(time.Second)),
		Debug:        *debug,
	}
	state, _, err := nodefs.MountRoot(flag.Arg(0), root, opts)
	if err != nil {
		fmt.Printf("Mount fail: %v\n", err)
		os.Exit(1)
	}

	runtime.GC()
	if profFile != nil {
		pprof.StartCPUProfile(profFile)
		defer pprof.StopCPUProfile()
	}

	if *command != "" {
		args := strings.Split(*command, " ")
		cmd := exec.Command(args[0], args[1:]...)
		cmd.Stdout = os.Stdout
		cmd.Start()
	}

	state.Serve()
	if memProfFile != nil {
		pprof.WriteHeapProfile(memProfFile)
	}
}