func TestNegativeTime(t *testing.T) {
ts := NewTestCase(t)
defer ts.Cleanup()
_, err := os.Create(ts.origFile)
if err != nil {
t.Fatalf("Create failed: %v", err)
}
var stat syscall.Stat_t
// set negative nanosecond will occur errors on UtimesNano as invalid argument
ut := time.Date(1960, time.January, 10, 23, 0, 0, 0, time.UTC)
tim := []syscall.Timespec{
syscall.NsecToTimespec(ut.UnixNano()),
syscall.NsecToTimespec(ut.UnixNano()),
}
err = syscall.UtimesNano(ts.mountFile, tim)
if err != nil {
t.Fatalf("UtimesNano failed: %v", err)
}
err = syscall.Lstat(ts.mountFile, &stat)
if err != nil {
t.Fatalf("Lstat failed: %v", err)
}
if stat.Atim.Sec >= 0 || stat.Mtim.Sec >= 0 {
t.Errorf("Got wrong timestamps %v", stat)
}
}
func setZeroModTime(filename string) error {
var utimes = []syscall.Timespec{
syscall.NsecToTimespec(0),
syscall.NsecToTimespec(0),
}
return syscall.UtimesNano(filename, utimes)
}
// Chtimes changes the access and modification times of the named
// file, similar to the Unix utime() or utimes() functions.
//
// The underlying filesystem may truncate or round the values to a
// less precise time unit.
// If there is an error, it will be of type *PathError.
func Chtimes(name string, atime time.Time, mtime time.Time) error {
var utimes [2]syscall.Timespec
utimes[0] = syscall.NsecToTimespec(atime.UnixNano())
utimes[1] = syscall.NsecToTimespec(mtime.UnixNano())
if e := syscall.UtimesNano(name, utimes[0:]); e != nil {
return &PathError{"chtimes", name, e}
}
return nil
}
func UtimesNano(path string, atime time.Time, mtime time.Time) error {
var utimes [2]syscall.Timespec
utimes[0] = syscall.NsecToTimespec(atime.UnixNano())
utimes[1] = syscall.NsecToTimespec(mtime.UnixNano())
if err := syscall.UtimesNano(path, utimes[0:]); err != nil {
return &os.PathError{"chtimes", path, err}
}
return nil
}
func UtimesNano(path string, atime time.Time, mtime time.Time) error {
// Note that this is disambiguated from plain `os.Chtimes` only in that it refuses to fall back to lower precision on old kernels.
// Like LUtimesNano, it depends on kernel 2.6.22 or newer.
var utimes [2]syscall.Timespec
utimes[0] = syscall.NsecToTimespec(atime.UnixNano())
utimes[1] = syscall.NsecToTimespec(mtime.UnixNano())
if err := syscall.UtimesNano(path, utimes[0:]); err != nil {
return &os.PathError{"chtimes", path, err}
}
return nil
}
func (p *pollster) WaitFD(nsec int64) (fd int, mode int, err os.Error) {
var t *syscall.Timespec
for len(p.events) == 0 {
if nsec > 0 {
if t == nil {
t = new(syscall.Timespec)
}
*t = syscall.NsecToTimespec(nsec)
}
nn, e := syscall.Kevent(p.kq, nil, &p.eventbuf, t)
if e != 0 {
if e == syscall.EINTR {
continue
}
return -1, 0, os.NewSyscallError("kevent", e)
}
if nn == 0 {
return -1, 0, nil
}
p.events = p.eventbuf[0:nn]
}
ev := &p.events[0]
p.events = p.events[1:len(p.events)]
fd = int(ev.Ident)
if ev.Filter == syscall.EVFILT_READ {
mode = 'r'
} else {
mode = 'w'
}
return fd, mode, nil
}
// TODO(sgotti) use UTIMES_OMIT on linux if Time.IsZero ?
func TimeToTimespec(time time.Time) (ts syscall.Timespec) {
nsec := int64(0)
if !time.IsZero() {
nsec = time.UnixNano()
}
return syscall.NsecToTimespec(nsec)
}
func (p *pollster) Kevent(nsec int64) (result int, events []net_event, err error) {
var t *syscall.Timespec
if nsec > 0 {
if t == nil {
t = new(syscall.Timespec)
}
*t = syscall.NsecToTimespec(nsec)
}
n, err := syscall.Kevent(p.kq, nil, p.eventbuf[:], t)
if err != nil {
if err == syscall.EINTR {
return 0, nil, nil
} else {
return -1, nil, os.NewSyscallError("kevent", err)
}
}
if n == 0 {
return -2, nil, nil
}
events = make([]net_event, n)
for i, ev := range p.eventbuf {
events[i].fd = int(ev.Ident)
events[i].data = int(ev.Data)
if ev.Filter == syscall.EVFILT_READ {
events[i].mode = 'r'
} else {
events[i].mode = 'w'
}
}
return n, events, nil
}
func (p *pollster) WaitFD(s *pollServer, nsec int64) (fd int, mode int, err error) {
var t *syscall.Timespec
for len(p.events) == 0 {
if nsec > 0 {
if t == nil {
t = new(syscall.Timespec)
}
*t = syscall.NsecToTimespec(nsec)
}
s.Unlock()
n, err := syscall.Kevent(p.kq, nil, p.eventbuf[:], t)
s.Lock()
if err != nil {
if err == syscall.EINTR {
continue
}
return -1, 0, os.NewSyscallError("kevent", err)
}
if n == 0 {
return -1, 0, nil
}
p.events = p.eventbuf[:n]
}
ev := &p.events[0]
p.events = p.events[1:]
fd = int(ev.Ident)
if ev.Filter == syscall.EVFILT_READ {
mode = 'r'
} else {
mode = 'w'
}
return fd, mode, nil
}
func (node Node) RestoreTimestamps(path string) error {
var utimes = [...]syscall.Timespec{
syscall.NsecToTimespec(node.AccessTime.UnixNano()),
syscall.NsecToTimespec(node.ModTime.UnixNano()),
}
if node.Type == "symlink" {
return node.restoreSymlinkTimestamps(path, utimes)
}
if err := syscall.UtimesNano(path, utimes[:]); err != nil {
return errors.Wrap(err, "UtimesNano")
}
return nil
}
func (k *PosixKernel) ClockGettime(_ int, out co.Obuf) uint64 {
ts := syscall.NsecToTimespec(time.Now().UnixNano())
err := out.Pack(&native.Timespec{int64(ts.Sec), int64(ts.Nsec)})
if err != nil {
return UINT64_MAX // FIXME
}
return 0
}
func LUtimesNano(path string, atime time.Time, mtime time.Time) error {
var utimes [2]syscall.Timespec
utimes[0] = syscall.NsecToTimespec(atime.UnixNano())
utimes[1] = syscall.NsecToTimespec(mtime.UnixNano())
var _path *byte
_path, err := syscall.BytePtrFromString(path)
if err != nil {
return err
}
if _, _, err := syscall.Syscall(syscall.SYS_LUTIMES, uintptr(unsafe.Pointer(_path)), uintptr(unsafe.Pointer(&utimes[0])), 0); err != 0 {
return &os.PathError{"chtimes", path, err}
}
return nil
}
func timeToTimespec(time time.Time) (ts syscall.Timespec) {
if time.IsZero() {
// Return UTIME_OMIT special value
ts.Sec = 0
ts.Nsec = ((1 << 30) - 2)
return
}
return syscall.NsecToTimespec(time.UnixNano())
}
// Utimens - path based version of loopbackFile.Utimens()
func (fs *loopbackFileSystem) Utimens(path string, a *time.Time, m *time.Time, context *fuse.Context) (code fuse.Status) {
var ts [2]syscall.Timespec
if a == nil {
ts[0].Nsec = _UTIME_OMIT
} else {
ts[0] = syscall.NsecToTimespec(a.UnixNano())
ts[0].Nsec = 0
}
if m == nil {
ts[1].Nsec = _UTIME_OMIT
} else {
ts[1] = syscall.NsecToTimespec(m.UnixNano())
ts[1].Nsec = 0
}
err := sysUtimensat(0, fs.GetPath(path), &ts, _AT_SYMLINK_NOFOLLOW)
return fuse.ToStatus(err)
}
func (p poller) timespec(d time.Duration) *C.struct_timespec {
if d < 0 {
// a NULL timespec tells kqueue to wait forever
return nil
}
t := syscall.NsecToTimespec(d.Nanoseconds())
// darwin defines tv_sec as __darwin_time_t, so we
// need to to some indirection to let C do the implicit
// type conversion.
ts := C.make_timespec(C.long(t.Sec), C.long(t.Nsec))
return &ts
}
// UtimeToTimespec converts a "Time" pointer as passed to Utimens to a
// "Timespec" that can be passed to the utimensat syscall.
// A nil pointer is converted to the special UTIME_OMIT value.
func UtimeToTimespec(t *time.Time) (ts syscall.Timespec) {
if t == nil {
ts.Nsec = _UTIME_OMIT
} else {
ts = syscall.NsecToTimespec(t.UnixNano())
// Go bug https://github.com/golang/go/issues/12777
if ts.Nsec < 0 {
ts.Nsec = 0
}
}
return ts
}
// Utimens - file handle based version of loopbackFileSystem.Utimens()
func (f *loopbackFile) Utimens(a *time.Time, m *time.Time) fuse.Status {
var ts [2]syscall.Timespec
if a == nil {
ts[0].Nsec = _UTIME_OMIT
} else {
ts[0] = syscall.NsecToTimespec(a.UnixNano())
ts[0].Nsec = 0
}
if m == nil {
ts[1].Nsec = _UTIME_OMIT
} else {
ts[1] = syscall.NsecToTimespec(a.UnixNano())
ts[1].Nsec = 0
}
f.lock.Lock()
err := futimens(int(f.File.Fd()), &ts)
f.lock.Unlock()
return fuse.ToStatus(err)
}
func LUtimesNano(path string, atime time.Time, mtime time.Time) error {
var utimes [2]syscall.Timespec
utimes[0] = syscall.NsecToTimespec(atime.UnixNano())
utimes[1] = syscall.NsecToTimespec(mtime.UnixNano())
// These are not currently available in syscall
AT_FDCWD := -100
AT_SYMLINK_NOFOLLOW := 0x100
var _path *byte
_path, err := syscall.BytePtrFromString(path)
if err != nil {
return &os.PathError{"chtimes", path, err}
}
// Note this does depend on kernel 2.6.22 or newer. Fallbacks are available but we haven't implemented them and they lose nano precision.
if _, _, err := syscall.Syscall6(syscall.SYS_UTIMENSAT, uintptr(AT_FDCWD), uintptr(unsafe.Pointer(_path)), uintptr(unsafe.Pointer(&utimes[0])), uintptr(AT_SYMLINK_NOFOLLOW), 0, 0); err != 0 {
return &os.PathError{"chtimes", path, err}
}
return nil
}
func (k *PosixKernel) ClockGettime(_ int, out co.Obuf) uint64 {
var err error
ts := syscall.NsecToTimespec(time.Now().UnixNano())
if k.U.Bits() == 64 {
err = out.Pack(&Timespec64{ts.Sec, ts.Nsec})
} else {
err = out.Pack(&Timespec{int32(ts.Sec), int32(ts.Nsec)})
}
if err != nil {
return UINT64_MAX // FIXME
}
return 0
}
func nanosleep(d time.Duration) {
if d <= 0 {
return
}
to := syscall.NsecToTimespec(int64(d))
for {
err := syscall.Nanosleep(&to, &to)
if err == nil {
return
}
if err != syscall.EINTR {
dieErr(err)
}
}
}
//setCTime will set the create time on a file. On Windows, this requires
//calling SetFileTime and explicitly including the create time.
func setCTime(path string, ctime time.Time) error {
ctimespec := syscall.NsecToTimespec(ctime.UnixNano())
pathp, e := syscall.UTF16PtrFromString(path)
if e != nil {
return e
}
h, e := syscall.CreateFile(pathp,
syscall.FILE_WRITE_ATTRIBUTES, syscall.FILE_SHARE_WRITE, nil,
syscall.OPEN_EXISTING, syscall.FILE_FLAG_BACKUP_SEMANTICS, 0)
if e != nil {
return e
}
defer syscall.Close(h)
c := syscall.NsecToFiletime(syscall.TimespecToNsec(ctimespec))
return syscall.SetFileTime(h, &c, nil, nil)
}
func (p *Poller) WaitWrite(deadline time.Time) error {
// setup timeout
var timeout *syscall.Timespec
if !deadline.IsZero() {
d := deadline.Sub(time.Now())
t := syscall.NsecToTimespec(d.Nanoseconds())
timeout = &t
}
// wait on kevent
events := make([]syscall.Kevent_t, 1)
n, err := syscall.Kevent(p.kqfd, []syscall.Kevent_t{p.event}, events, timeout)
if err != nil {
return err
}
if n < 1 {
return errTimeout
}
return nil
}
// readEvents reads from the kqueue file descriptor, converts the
// received events into Event objects and sends them via the Event channel
func (this *watcher) doReadEvents(flags uint32, events chan<- IFSEvent, devNull chan<- error, done <-chan bool) {
var (
keventbuf [10]syscall.Kevent_t // Event buffer
kevents []syscall.Kevent_t // Received events
twait *syscall.Timespec // Time to block waiting for events
)
kevents = keventbuf[0:0]
twait = new(syscall.Timespec)
*twait = syscall.NsecToTimespec(keventWaitTime)
for {
// If "done" message is received
select {
case <-done:
return
default:
}
// Get new events
if len(kevents) == 0 {
n, errno := syscall.Kevent(this.kq, nil, keventbuf[:], twait)
// EINTR is okay, basically the syscall was interrupted before
// timeout expired.
if errno != nil && errno != syscall.EINTR {
devNull <- os.NewSyscallError("kevent", errno)
continue
}
// Received some events
if n > 0 {
kevents = keventbuf[0:n]
}
}
// Flush the events we received to the events channel
for len(kevents) > 0 {
fileEvent := new(FileEvent)
watchEvent := &kevents[0]
// Move to next event
kevents = kevents[1:]
fileEvent.mask = uint32(watchEvent.Fflags)
info := this.watchedByFD[int(watchEvent.Ident)]
if info != nil {
fileEvent.Name = info.realPath
}
if info != nil && info.fInto.IsDir() && !fileEvent.IsDelete() {
// Double check to make sure the directory exist. This can happen when
// we do a rm -fr on a recursively watched folders and we receive a
// modification event first but the folder has been deleted and later
// receive the delete event
if _, err := os.Lstat(fileEvent.Name); os.IsNotExist(err) {
// mark is as delete event
fileEvent.mask |= Note_DELETE
}
}
if info != nil && info.fInto.IsDir() && fileEvent.IsModify() && !fileEvent.IsDelete() {
this.sendDirectoryChangeEvents(info.realPath, info.flags, devNull, events)
} else {
// Send the event on the events channel
if flags&fileEvent.mask != 0 || fileEvent.create {
events <- fileEvent
}
}
if fileEvent.IsDelete() {
if err := this.doDel(fileEvent.Name); err != nil {
devNull <- err
}
if _, err := os.Lstat(info.realPath); !os.IsNotExist(err) {
this.sendDirectoryChangeEvents(info.realPath, flags, devNull, events)
}
} else if fileEvent.IsRename() {
if err := this.doDel(fileEvent.Name); err != nil {
devNull <- err
}
}
}
}
}
func calcCopyInfo(b *Builder, cmdName string, cInfos *[]*copyInfo, origPath string, destPath string, allowRemote bool, allowDecompression bool) error {
if origPath != "" && origPath[0] == '/' && len(origPath) > 1 {
origPath = origPath[1:]
}
origPath = strings.TrimPrefix(origPath, "./")
// Twiddle the destPath when its a relative path - meaning, make it
// relative to the WORKINGDIR
if !filepath.IsAbs(destPath) {
hasSlash := strings.HasSuffix(destPath, "/")
destPath = filepath.Join("/", b.Config.WorkingDir, destPath)
// Make sure we preserve any trailing slash
if hasSlash {
destPath += "/"
}
}
// In the remote/URL case, download it and gen its hashcode
if urlutil.IsURL(origPath) {
if !allowRemote {
return fmt.Errorf("Source can't be a URL for %s", cmdName)
}
ci := copyInfo{}
ci.origPath = origPath
ci.hash = origPath // default to this but can change
ci.destPath = destPath
ci.decompress = false
*cInfos = append(*cInfos, &ci)
// Initiate the download
resp, err := utils.Download(ci.origPath)
if err != nil {
return err
}
// Create a tmp dir
tmpDirName, err := ioutil.TempDir(b.contextPath, "docker-remote")
if err != nil {
return err
}
ci.tmpDir = tmpDirName
// Create a tmp file within our tmp dir
tmpFileName := path.Join(tmpDirName, "tmp")
tmpFile, err := os.OpenFile(tmpFileName, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
if err != nil {
return err
}
// Download and dump result to tmp file
if _, err := io.Copy(tmpFile, utils.ProgressReader(resp.Body, int(resp.ContentLength), b.OutOld, b.StreamFormatter, true, "", "Downloading")); err != nil {
tmpFile.Close()
return err
}
fmt.Fprintf(b.OutStream, "\n")
tmpFile.Close()
// Set the mtime to the Last-Modified header value if present
// Otherwise just remove atime and mtime
times := make([]syscall.Timespec, 2)
lastMod := resp.Header.Get("Last-Modified")
if lastMod != "" {
mTime, err := http.ParseTime(lastMod)
// If we can't parse it then just let it default to 'zero'
// otherwise use the parsed time value
if err == nil {
times[1] = syscall.NsecToTimespec(mTime.UnixNano())
}
}
if err := system.UtimesNano(tmpFileName, times); err != nil {
return err
}
ci.origPath = path.Join(filepath.Base(tmpDirName), filepath.Base(tmpFileName))
// If the destination is a directory, figure out the filename.
if strings.HasSuffix(ci.destPath, "/") {
u, err := url.Parse(origPath)
if err != nil {
return err
}
path := u.Path
if strings.HasSuffix(path, "/") {
path = path[:len(path)-1]
}
parts := strings.Split(path, "/")
filename := parts[len(parts)-1]
if filename == "" {
return fmt.Errorf("cannot determine filename from url: %s", u)
}
ci.destPath = ci.destPath + filename
}
// Calc the checksum, even if we're using the cache
r, err := archive.Tar(tmpFileName, archive.Uncompressed)
if err != nil {
return err
}
tarSum, err := tarsum.NewTarSum(r, true, tarsum.Version0)
if err != nil {
return err
}
if _, err := io.Copy(ioutil.Discard, tarSum); err != nil {
return err
}
ci.hash = tarSum.Sum(nil)
r.Close()
return nil
}
// Deal with wildcards
if ContainsWildcards(origPath) {
for _, fileInfo := range b.context.GetSums() {
if fileInfo.Name() == "" {
continue
}
match, _ := path.Match(origPath, fileInfo.Name())
if !match {
continue
}
calcCopyInfo(b, cmdName, cInfos, fileInfo.Name(), destPath, allowRemote, allowDecompression)
}
return nil
}
// Must be a dir or a file
if err := b.checkPathForAddition(origPath); err != nil {
return err
}
fi, _ := os.Stat(path.Join(b.contextPath, origPath))
ci := copyInfo{}
ci.origPath = origPath
ci.hash = origPath
ci.destPath = destPath
ci.decompress = allowDecompression
*cInfos = append(*cInfos, &ci)
// Deal with the single file case
if !fi.IsDir() {
// This will match first file in sums of the archive
fis := b.context.GetSums().GetFile(ci.origPath)
if fis != nil {
ci.hash = "file:" + fis.Sum()
}
return nil
}
// Must be a dir
var subfiles []string
absOrigPath := path.Join(b.contextPath, ci.origPath)
// Add a trailing / to make sure we only pick up nested files under
// the dir and not sibling files of the dir that just happen to
// start with the same chars
if !strings.HasSuffix(absOrigPath, "/") {
absOrigPath += "/"
}
// Need path w/o / too to find matching dir w/o trailing /
absOrigPathNoSlash := absOrigPath[:len(absOrigPath)-1]
for _, fileInfo := range b.context.GetSums() {
absFile := path.Join(b.contextPath, fileInfo.Name())
// Any file in the context that starts with the given path will be
// picked up and its hashcode used. However, we'll exclude the
// root dir itself. We do this for a coupel of reasons:
// 1 - ADD/COPY will not copy the dir itself, just its children
// so there's no reason to include it in the hash calc
// 2 - the metadata on the dir will change when any child file
// changes. This will lead to a miss in the cache check if that
// child file is in the .dockerignore list.
if strings.HasPrefix(absFile, absOrigPath) && absFile != absOrigPathNoSlash {
subfiles = append(subfiles, fileInfo.Sum())
}
}
sort.Strings(subfiles)
hasher := sha256.New()
hasher.Write([]byte(strings.Join(subfiles, ",")))
ci.hash = "dir:" + hex.EncodeToString(hasher.Sum(nil))
return nil
}
// readEvents reads from the kqueue file descriptor, converts the
// received events into Event objects and sends them via the Event channel
func (w *Watcher) readEvents() {
var (
eventbuf [10]syscall.Kevent_t // Event buffer
events []syscall.Kevent_t // Received events
twait *syscall.Timespec // Time to block waiting for events
n int // Number of events returned from kevent
errno error // Syscall errno
)
events = eventbuf[0:0]
twait = new(syscall.Timespec)
*twait = syscall.NsecToTimespec(keventWaitTime)
for {
// See if there is a message on the "done" channel
var done bool
select {
case done = <-w.done:
default:
}
// If "done" message is received
if done {
errno := syscall.Close(w.kq)
if errno != nil {
w.Error <- os.NewSyscallError("close", errno)
}
close(w.internalEvent)
close(w.Error)
return
}
// Get new events
if len(events) == 0 {
n, errno = syscall.Kevent(w.kq, nil, eventbuf[:], twait)
// EINTR is okay, basically the syscall was interrupted before
// timeout expired.
if errno != nil && errno != syscall.EINTR {
w.Error <- os.NewSyscallError("kevent", errno)
continue
}
// Received some events
if n > 0 {
events = eventbuf[0:n]
}
}
// Flush the events we recieved to the events channel
for len(events) > 0 {
fileEvent := new(FileEvent)
watchEvent := &events[0]
fileEvent.mask = uint32(watchEvent.Fflags)
fileEvent.Name = w.paths[int(watchEvent.Ident)]
fileInfo := w.finfo[int(watchEvent.Ident)]
if fileInfo.IsDir() && fileEvent.IsModify() {
w.sendDirectoryChangeEvents(fileEvent.Name)
} else {
// Send the event on the events channel
w.internalEvent <- fileEvent
}
// Move to next event
events = events[1:]
if fileEvent.IsRename() {
w.removeWatch(fileEvent.Name)
delete(w.fileExists, fileEvent.Name)
}
if fileEvent.IsDelete() {
w.removeWatch(fileEvent.Name)
delete(w.fileExists, fileEvent.Name)
}
}
}
}
func (s statWin) mtim() syscall.Timespec {
return syscall.NsecToTimespec(s.LastWriteTime.Nanoseconds())
}
func (s statWin) atim() syscall.Timespec {
return syscall.NsecToTimespec(s.LastAccessTime.Nanoseconds())
}
// readEvents reads from the kqueue file descriptor, converts the
// received events into Event objects and sends them via the Event channel
func (w *Watcher) readEvents() {
var (
eventbuf [10]syscall.Kevent_t // Event buffer
events []syscall.Kevent_t // Received events
twait *syscall.Timespec // Time to block waiting for events
n int // Number of events returned from kevent
errno error // Syscall errno
)
events = eventbuf[0:0]
twait = new(syscall.Timespec)
*twait = syscall.NsecToTimespec(keventWaitTime)
for {
// See if there is a message on the "done" channel
var done bool
select {
case done = <-w.done:
default:
}
// If "done" message is received
if done {
errno := syscall.Close(w.kq)
if errno != nil {
w.Error <- os.NewSyscallError("close", errno)
}
close(w.internalEvent)
close(w.Error)
return
}
// Get new events
if len(events) == 0 {
n, errno = syscall.Kevent(w.kq, nil, eventbuf[:], twait)
// EINTR is okay, basically the syscall was interrupted before
// timeout expired.
if errno != nil && errno != syscall.EINTR {
w.Error <- os.NewSyscallError("kevent", errno)
continue
}
// Received some events
if n > 0 {
events = eventbuf[0:n]
}
}
// Flush the events we recieved to the events channel
for len(events) > 0 {
fileEvent := new(FileEvent)
watchEvent := &events[0]
fileEvent.mask = uint32(watchEvent.Fflags)
fileEvent.Name = w.paths[int(watchEvent.Ident)]
fileInfo := w.finfo[int(watchEvent.Ident)]
if fileInfo.IsDir() && !fileEvent.IsDelete() {
// Double check to make sure the directory exist. This can happen when
// we do a rm -fr on a recursively watched folders and we receive a
// modification event first but the folder has been deleted and later
// receive the delete event
if _, err := os.Lstat(fileEvent.Name); os.IsNotExist(err) {
// mark is as delete event
fileEvent.mask |= NOTE_DELETE
}
}
if fileInfo.IsDir() && fileEvent.IsModify() && !fileEvent.IsDelete() {
w.sendDirectoryChangeEvents(fileEvent.Name)
} else {
// Send the event on the events channel
w.internalEvent <- fileEvent
}
// Move to next event
events = events[1:]
if fileEvent.IsRename() {
w.removeWatch(fileEvent.Name)
delete(w.fileExists, fileEvent.Name)
}
if fileEvent.IsDelete() {
w.removeWatch(fileEvent.Name)
delete(w.fileExists, fileEvent.Name)
// Look for a file that may have overwritten this
// (ie mv f1 f2 will delete f2 then create f2)
fileDir, _ := filepath.Split(fileEvent.Name)
fileDir = filepath.Clean(fileDir)
if _, found := w.watches[fileDir]; found {
// make sure the directory exist before we watch for changes. When we
// do a recursive watch and perform rm -fr, the parent directory might
// have gone missing, ignore the missing directory and let the
// upcoming delete event remove the watch form the parent folder
if _, err := os.Lstat(fileDir); !os.IsNotExist(err) {
w.sendDirectoryChangeEvents(fileDir)
}
}
}
}
}
}
// durationToTimespec prepares a timeout value
func durationToTimespec(d time.Duration) syscall.Timespec {
return syscall.NsecToTimespec(d.Nanoseconds())
}
func (s statWin) ctim() syscall.Timespec {
return syscall.NsecToTimespec(s.CreationTime.Nanoseconds())
}