watch

type FileChanges struct {
	Modified  chan bool // Channel to get notified of modifications
	Truncated chan bool // Channel to get notified of truncations
	Deleted   chan bool // Channel to get notified of deletions/renames
}

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.
	// In order to properly report truncations, ChangeEvents requires
	// the caller to pass their current offset in the file.
	ChangeEvents(*tomb.Tomb, int64) (*FileChanges, error)
}

type InotifyFileWatcher struct {
	Filename string
	Size     int64
}

type InotifyTracker struct {
	// contains filtered or unexported fields
}

type PollingFileWatcher struct {
	Filename string
	Size     int64
}