Additional OptionsWatcher interface. Didn't actually attempt to use, just an idea.

fsnotify-additions.go

type FileNotification interface {
	IsCreate() bool
	IsDelete() bool
	IsModify() bool
	IsRename() bool
	Path() string // relative path to the file
}

type OptionWatcher interface {
	Close() error
	RemoveWatch(string) error
	WatchPath(string, *Options) error
	NextNotification() (FileNotification, error)
}

func NewOptionWatcher() (OptionWatcher, error) {
	return NewWatcher()
}

func (w *Watcher) NextNotification() (fn FileNotification, err error) {
	select {
	case fn = <-w.internalEvent:
	case err = <-w.Error:
	}
	return
}

What would the calling code for Next() look like?

Lots of iterator options http://ewencp.org/blog/golang-iterators/