newFSNotify creates a new fsnotify detector which uses filesystem events to detect that a file has changed.

newPoller creates a new poll-based file update detector.

DetectorDefault holds the default UpdateType.

DetectorFSNotify uses filesystem events to wait for changes to the file.

DetectorInvalid indicates an invalid UpdateType.

DetectorPoll will re-read the file on an interval to detect changes.

Detector is used to specify how changes to the file should be detected.