Wrapper library for directory and file watching. 

evilebottnawi

sokra

watchpack

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	MIT License http://www.opensource.org/licenses/mit-license.php

var EventEmitter = require("events").EventEmitter;

var watcherManager = require("./watcherManager");

function Watcher(directoryWatcher, filePath, startTime) {

	this.directoryWatcher = directoryWatcher;

	this.startTime = startTime && +startTime;

Watcher.prototype = Object.create(EventEmitter.prototype);

Watcher.prototype.checkStartTime = function checkStartTime(mtime, initial) {

	if(typeof this.startTime !== "number") return !initial;

Watcher.prototype.close = function close() {

function DirectoryWatcher(directoryPath, options) {

	this.watcher = chokidar.watch(directoryPath, {

		usePolling: options.poll ? true : undefined,

		interval: typeof options.poll === "number" ? options.poll : undefined

	this.watcher.on("add", this.onFileAdded.bind(this));

	this.watcher.on("addDir", this.onDirectoryAdded.bind(this));

	this.watcher.on("change", this.onChange.bind(this));

	this.watcher.on("unlink", this.onFileUnlinked.bind(this));

	this.watcher.on("unlinkDir", this.onDirectoryUnlinked.bind(this));

	this.watcher.on("error", this.onWatcherError.bind(this));

DirectoryWatcher.prototype = Object.create(EventEmitter.prototype);

DirectoryWatcher.prototype.constructor = DirectoryWatcher;

DirectoryWatcher.prototype.setFileTime = function setFileTime(filePath, mtime, initial, type) {

	this.files[filePath] = [initial ? Math.min(now, mtime) : now, mtime];

	// we add the fs accurency to reach the maximum possible mtime

			if(this.watchers[withoutCase(filePath)]) {

				this.watchers[withoutCase(filePath)].forEach(function(w) {

					if(!initial || w.checkStartTime(mtime, initial)) {

	} else if(!initial && mtime && type !== "add") {

		if(this.watchers[withoutCase(filePath)]) {

			this.watchers[withoutCase(filePath)].forEach(function(w) {

	if(this.watchers[withoutCase(this.path)]) {

		this.watchers[withoutCase(this.path)].forEach(function(w) {

			if(!initial || w.checkStartTime(mtime, initial)) {

DirectoryWatcher.prototype.setDirectory = function setDirectory(directoryPath, exist, initial) {

	var old = this.directories[directoryPath];

				this.createNestedWatcher(directoryPath);

				this.directories[directoryPath] = true;

				this.directories[directoryPath].close();

			delete this.directories[directoryPath];

			if(!initial && this.watchers[withoutCase(this.path)]) {

				this.watchers[withoutCase(this.path)].forEach(function(w) {

					w.emit("change", directoryPath, w.data);

DirectoryWatcher.prototype.createNestedWatcher = function(directoryPath) {

	this.directories[directoryPath] = watcherManager.watchDirectory(directoryPath, this.options, 1);

	this.directories[directoryPath].on("change", function(filePath, mtime) {

		if(this.watchers[withoutCase(this.path)]) {

			this.watchers[withoutCase(this.path)].forEach(function(w) {

DirectoryWatcher.prototype.setNestedWatching = function(flag) {

			Object.keys(this.directories).forEach(function(directory) {

DirectoryWatcher.prototype.watch = function watch(filePath, startTime) {

	this.watchers[withoutCase(filePath)] = this.watchers[withoutCase(filePath)] || [];

	var watcher = new Watcher(this, filePath, startTime);

		var idx = this.watchers[withoutCase(filePath)].indexOf(watcher);

		this.watchers[withoutCase(filePath)].splice(idx, 1);

		if(this.watchers[withoutCase(filePath)].length === 0) {

			delete this.watchers[withoutCase(filePath)];

	this.watchers[withoutCase(filePath)].push(watcher);

			var ts = data[0] === data[1] ? data[0] + FS_ACCURENCY : data[0];

				watcher.emit("change", data[1] + FS_ACCURENCY);

		} else if(this.initialScan && this.initialScanRemoved.indexOf(filePath) >= 0) {

DirectoryWatcher.prototype.onFileAdded = function onFileAdded(filePath, stat) {

	if(filePath.indexOf(this.path) !== 0) return;

	if(/[\\\/]/.test(filePath.substr(this.path.length + 1))) return;

	this.setFileTime(filePath, +stat.mtime, false, "add");

DirectoryWatcher.prototype.onDirectoryAdded = function onDirectoryAdded(directoryPath /*, stat */) {

	if(directoryPath.indexOf(this.path) !== 0) return;

	if(/[\\\/]/.test(directoryPath.substr(this.path.length + 1))) return;

	this.setDirectory(directoryPath, true, false);

DirectoryWatcher.prototype.onChange = function onChange(filePath, stat) {

	else if(FS_ACCURENCY > 10 && mtime % 10 !== 0)

	else if(FS_ACCURENCY > 100 && mtime % 100 !== 0)

	else if(FS_ACCURENCY > 1000 && mtime % 1000 !== 0)

	else if(FS_ACCURENCY > 2000 && mtime % 2000 !== 0)

	this.setFileTime(filePath, mtime, false, "change");

DirectoryWatcher.prototype.onFileUnlinked = function onFileUnlinked(filePath) {

	this.setFileTime(filePath, null, false, "unlink");

		this.initialScanRemoved.push(filePath);

DirectoryWatcher.prototype.onDirectoryUnlinked = function onDirectoryUnlinked(directoryPath) {

	this.setDirectory(directoryPath, false, false);

		this.initialScanRemoved.push(directoryPath);

DirectoryWatcher.prototype.onWatcherError = function onWatcherError(/* err */) {

DirectoryWatcher.prototype.doInitialScan = function doInitialScan() {

	fs.readdir(this.path, function(err, items) {

		async.forEach(items, function(item, callback) {

			var itemPath = path.join(this.path, item);

			fs.stat(itemPath, function(err2, stat) {

						this.setFileTime(itemPath, +stat.mtime, true);

						this.setDirectory(itemPath, true, true);

DirectoryWatcher.prototype.getTimes = function() {

	Object.keys(this.files).forEach(function(file) {

			var time = Math.max(data[0], data[1]);

			var time = Math.max(data[0], data[1] + FS_ACCURENCY);

		@@ -81,6 +81,7 @@ /*

		this.files[filePath] = [initial ? Math.min(now, mtime) : now, mtime];

		// we add the fs accurency to reach the maximum possible mtime
		mtime = mtime + FS_ACCURENCY;

		this.files[filePath] = [initial ? Math.min(now, mtime) : now, mtime];
		if(!old) {
		@@ -203,4 +204,5 @@ if(mtime) {
		if(data) {
		if(data[0] > startTime)
		watcher.emit("change", data[1]);
		var ts = data[0] === data[1] ? data[0] + FS_ACCURENCY : data[0];
		if(ts > startTime)
		watcher.emit("change", data[1] + FS_ACCURENCY);
		} else if(this.initialScan && this.initialScanRemoved.indexOf(filePath) >= 0) {
		@@ -300,3 +302,3 @@ watcher.emit("remove");
		if(data[1]) {
		var time = Math.max(data[0], data[1]);
		var time = Math.max(data[0], data[1] + FS_ACCURENCY);
		obj[file] = time;
		@@ -303,0 +305,0 @@ if(time > selfTime)

		{
		"name": "watchpack",
		"version": "1.0.0",
		"version": "1.0.1",
		"description": "",
		@@ -5,0 +5,0 @@ "main": "./lib/watchpack.js",

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