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Allow to tail named pipes #135

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Allow to tail named pipes #135

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13 changes: 10 additions & 3 deletions tail.go
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Original file line number Diff line number Diff line change
Expand Up @@ -336,9 +336,13 @@ func (tail *Tail) tailFileSync() {
// reopened if ReOpen is true. Truncated files are always reopened.
func (tail *Tail) waitForChanges() error {
if tail.changes == nil {
pos, err := tail.file.Seek(0, os.SEEK_CUR)
if err != nil {
return err
var pos int64
var err error
if !tail.Pipe {
pos, err = tail.file.Seek(0, os.SEEK_CUR)
if err != nil {
return err
}
}
tail.changes, err = tail.watcher.ChangeEvents(&tail.Tomb, pos)
if err != nil {
Expand Down Expand Up @@ -389,6 +393,9 @@ func (tail *Tail) openReader() {
}

func (tail *Tail) seekEnd() error {
if !tail.Pipe {
return nil
}
return tail.seekTo(SeekInfo{Offset: 0, Whence: os.SEEK_END})
}

Expand Down