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()
}
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
}
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
}
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)
}
}