diff options
Diffstat (limited to 'vendor/github.com/hpcloud/tail/watch/inotify.go')
-rw-r--r-- | vendor/github.com/hpcloud/tail/watch/inotify.go | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/vendor/github.com/hpcloud/tail/watch/inotify.go b/vendor/github.com/hpcloud/tail/watch/inotify.go deleted file mode 100644 index 4478f1e1a..000000000 --- a/vendor/github.com/hpcloud/tail/watch/inotify.go +++ /dev/null @@ -1,128 +0,0 @@ -// Copyright (c) 2015 HPE Software Inc. All rights reserved. -// Copyright (c) 2013 ActiveState Software Inc. All rights reserved. - -package watch - -import ( - "fmt" - "os" - "path/filepath" - - "github.com/hpcloud/tail/util" - - "gopkg.in/fsnotify.v1" - "gopkg.in/tomb.v1" -) - -// InotifyFileWatcher uses inotify to monitor file changes. -type InotifyFileWatcher struct { - Filename string - Size int64 -} - -func NewInotifyFileWatcher(filename string) *InotifyFileWatcher { - fw := &InotifyFileWatcher{filepath.Clean(filename), 0} - return fw -} - -func (fw *InotifyFileWatcher) BlockUntilExists(t *tomb.Tomb) error { - err := WatchCreate(fw.Filename) - if err != nil { - return err - } - defer RemoveWatchCreate(fw.Filename) - - // Do a real check now as the file might have been created before - // calling `WatchFlags` above. - if _, err = os.Stat(fw.Filename); !os.IsNotExist(err) { - // file exists, or stat returned an error. - return err - } - - events := Events(fw.Filename) - - for { - select { - case evt, ok := <-events: - if !ok { - return fmt.Errorf("inotify watcher has been closed") - } - evtName, err := filepath.Abs(evt.Name) - if err != nil { - return err - } - fwFilename, err := filepath.Abs(fw.Filename) - if err != nil { - return err - } - if evtName == fwFilename { - return nil - } - case <-t.Dying(): - return tomb.ErrDying - } - } - panic("unreachable") -} - -func (fw *InotifyFileWatcher) ChangeEvents(t *tomb.Tomb, pos int64) (*FileChanges, error) { - err := Watch(fw.Filename) - if err != nil { - return nil, err - } - - changes := NewFileChanges() - fw.Size = pos - - go func() { - defer RemoveWatch(fw.Filename) - - events := Events(fw.Filename) - - for { - prevSize := fw.Size - - var evt fsnotify.Event - var ok bool - - select { - case evt, ok = <-events: - if !ok { - return - } - case <-t.Dying(): - return - } - - switch { - case evt.Op&fsnotify.Remove == fsnotify.Remove: - fallthrough - - case evt.Op&fsnotify.Rename == fsnotify.Rename: - changes.NotifyDeleted() - return - - case evt.Op&fsnotify.Write == fsnotify.Write: - fi, err := os.Stat(fw.Filename) - if err != nil { - if os.IsNotExist(err) { - changes.NotifyDeleted() - return - } - // XXX: report this error back to the user - util.Fatal("Failed to stat file %v: %v", fw.Filename, err) - } - fw.Size = fi.Size() - - if prevSize > 0 && prevSize > fw.Size { - changes.NotifyTruncated() - } else { - changes.NotifyModified() - } - prevSize = fw.Size - } - } - }() - - return changes, nil -} |