tail/watch/watch.go

21 lines
579 B
Go

// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
package watch
import (
"gopkg.in/tomb.v1"
"os"
)
// FileWatcher monitors file-level events.
type FileWatcher interface {
// BlockUntilExists blocks until the file comes into existence.
BlockUntilExists(*tomb.Tomb) error
// ChangeEvents reports on changes to a file, be it modification,
// deletion, renames or truncations. Returned FileChanges group of
// channels will be closed, thus become unusable, after a deletion
// or truncation event.
ChangeEvents(*tomb.Tomb, os.FileInfo) *FileChanges
}