// tames fs.watch to not trigger n times each
//  fn (event, filename)
// --------------------------------
function watchDir(dir, timeout, fn) {
	let paused=false
	fs.watch(dir, {persistent: true, recursive : true}, function (event, fileName) {
		if (!paused) {
			fn(event,fileName)
			paused=true
			setTimeout(()=>paused=false,timeout)
		}
	})
}