Fully refactored the watcher
parent
b476d23a77
commit
c09a4c805e
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@ -1,20 +1,14 @@
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import fs from 'fs'
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import fsPromise from 'fs/promises'
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import path from 'path'
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import util from 'util'
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import events from 'events'
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import hasNativeRecursive from './has-native-recursive.mjs'
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import * as is from './is.mjs'
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const EVENT_UPDATE = 'update';
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const EVENT_REMOVE = 'remove';
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const SKIP_FLAG = Symbol('skip');
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function hasDup(arr) {
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return arr.some(function(v, i, self) {
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return self.indexOf(v) !== i;
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});
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}
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const TYPE_FILE = 'file'
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const TYPE_DIRECTORY = 'directory'
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function unique(arr) {
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return arr.filter(function(v, i, self) {
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@ -22,528 +16,274 @@ function unique(arr) {
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});
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}
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// One level flat
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function flat1(arr) {
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return arr.reduce(function(acc, v) {
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return acc.concat(v);
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}, []);
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}
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export default class Watcher extends events.EventEmitter {
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constructor(path, options = null, fn = null, { fs: fsoverwrite } = {}) {
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super()
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function assertEncoding(encoding) {
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if (encoding && encoding !== 'buffer' && !Buffer.isEncoding(encoding)) {
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throw new Error('Unknown encoding: ' + encoding);
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}
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}
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function guard(fn) {
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if (is.func(fn)) {
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return function(arg, action) {
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if (fn(arg, false)) action();
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this.ac = new AbortController()
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events.setMaxListeners(2000, this.ac.signal)
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this._fs = fsoverwrite || fs
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this._cache = []
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this._cacheTimeout = null
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this.listeners = []
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this.closed = false
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let paths = path
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if (is.buffer(paths)) {
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paths = paths.toString()
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}
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}
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if (is.regExp(fn)) {
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return function(arg, action) {
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if (fn.test(arg)) action();
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if (!is.array(paths)) {
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paths = [paths]
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}
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}
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return function(arg, action) {
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action();
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}
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}
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function composeMessage(names) {
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return names.map(function(n) {
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return is.exists(n)
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? [EVENT_UPDATE, n]
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: [EVENT_REMOVE, n];
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});
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}
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paths = unique(paths)
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this.options = options || {}
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this.fn = fn || null
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function getMessages(cache) {
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var filtered = unique(cache);
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// Saving file from an editor? If so, assuming the
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// non-existed files in the cache are temporary files
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// generated by an editor and thus be filtered.
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var reg = /~$|^\.#|^##$/g;
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var hasSpecialChar = cache.some(function(c) {
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return reg.test(c);
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});
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if (hasSpecialChar) {
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var dup = hasDup(cache.map(function(c) {
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return c.replace(reg, '');
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}));
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if (dup) {
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filtered = filtered.filter(function(m) {
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return is.exists(m);
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});
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if (is.func(this.options)) {
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this.fn = this.options
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this.options = {}
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}
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this._verifyOptions(paths)
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}
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return composeMessage(filtered);
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}
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function debounce(info, fn) {
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var timer, cache = [];
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var encoding = info.options.encoding;
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var delay = info.options.delay;
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if (!is.number(delay)) {
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delay = 200;
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isClosed() {
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return this.closed
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}
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function handle() {
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getMessages(cache).forEach(function(msg) {
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msg[1] = Buffer.from(msg[1]);
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if (encoding !== 'buffer') {
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msg[1] = msg[1].toString(encoding);
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close() {
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this.closed = true
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this.ac.abort()
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this._cache = this.listeners = []
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this.emitAsync('close')
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}
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emitAsync(name, ...args) {
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process.nextTick(() => this.emit(name, ...args))
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}
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_verifyOptions(paths) {
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for (let path of paths) {
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if (!is.exists(path)) {
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this.emitAsync('error', new Error(path + ' does not exist.'))
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}
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fn.apply(null, msg);
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});
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timer = null;
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cache = [];
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}
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return function(rawEvt, name) {
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cache.push(name);
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if (!timer) {
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timer = setTimeout(handle, delay);
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}
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}
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}
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function createDupsFilter() {
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var memo = {};
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return function(fn) {
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return function(evt, name) {
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memo[evt + name] = [evt, name];
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setTimeout(function() {
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Object.keys(memo).forEach(function(n) {
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fn.apply(null, memo[n]);
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});
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memo = {};
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});
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}
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}
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}
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function tryWatch(watcher, dir, opts) {
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try {
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return fs.watch(dir, opts);
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} catch (e) {
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process.nextTick(function() {
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watcher.emit('error', e);
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});
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}
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}
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function getSubDirectories(dir, fn, done = function() {}) {
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if (is.directory(dir)) {
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fs.readdir(dir, function(err, all) {
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if (err) {
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// don't throw permission errors.
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if (/^(EPERM|EACCES)$/.test(err.code)) {
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console.warn('Warning: Cannot access %s.', dir);
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} else {
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throw err;
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}
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if (this.options.encoding) {
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if (this.options.encoding && this.options.encoding !== 'buffer' && !Buffer.isEncoding(this.options.encoding)) {
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throw new Error('Unknown encoding: ' + this.options.encoding);
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}
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else {
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all.forEach(function(f) {
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var sdir = path.join(dir, f);
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if (is.directory(sdir)) fn(sdir);
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});
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done();
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}
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});
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} else {
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done();
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}
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}
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function semaphore(final) {
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var counter = 0;
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return function start() {
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counter++;
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return function stop() {
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counter--;
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if (counter === 0) final();
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};
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};
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}
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function nullCounter() {
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return function nullStop() {};
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}
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function shouldNotSkip(filePath, filter) {
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// watch it only if the filter is not function
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// or not being skipped explicitly.
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return !is.func(filter) || filter(filePath, SKIP_FLAG) !== SKIP_FLAG;
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}
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var deprecationWarning = util.deprecate(
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function() {},
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'(node-watch) First param in callback function\
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is replaced with event name since 0.5.0, use\
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`(evt, filename) => {}` if you want to get the filename'
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);
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function Watcher() {
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events.EventEmitter.call(this);
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this.watchers = {};
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this._isReady = false;
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this._isClosed = false;
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}
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util.inherits(Watcher, events.EventEmitter);
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Watcher.prototype.expose = function() {
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var expose = {};
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var self = this;
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var methods = [
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'on', 'emit', 'once',
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'close', 'isClosed',
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'listeners', 'setMaxListeners', 'getMaxListeners',
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'getWatchedPaths'
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];
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methods.forEach(function(name) {
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expose[name] = function() {
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return self[name].apply(self, arguments);
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}
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});
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expose.options = self.options
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return expose;
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}
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Watcher.prototype.isClosed = function() {
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return this._isClosed;
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}
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Watcher.prototype.close = function(fullPath) {
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var self = this;
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if (fullPath) {
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var watcher = this.watchers[fullPath];
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if (watcher && watcher.close) {
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watcher.close();
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delete self.watchers[fullPath];
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}
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getSubDirectories(fullPath, function(fpath) {
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self.close(fpath);
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});
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}
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else {
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Object.keys(self.watchers).forEach(function(fpath) {
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var watcher = self.watchers[fpath];
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if (watcher && watcher.close) {
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watcher.close();
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}
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});
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this.watchers = {};
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}
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// Do not close the Watcher unless all child watchers are closed.
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// https://github.com/yuanchuan/node-watch/issues/75
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if (is.emptyObject(self.watchers)) {
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// should emit once
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if (!this._isClosed) {
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this._isClosed = true;
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process.nextTick(emitClose, this);
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}
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}
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}
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Watcher.prototype.getWatchedPaths = function(fn) {
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if (is.func(fn)) {
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var self = this;
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if (self._isReady) {
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fn(Object.keys(self.watchers));
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} else {
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self.on('ready', function() {
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fn(Object.keys(self.watchers));
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});
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this.options.encoding = 'utf8'
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}
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if (this.options.delay !== 0 && !this.options.delay) {
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this.options.delay = 200
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}
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if (is.func(this.fn)) {
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this.on('change', this.fn)
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}
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if (this.options.manualRecursive !== true) {
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hasNativeRecursive(nativeRecursive => {
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this.supportsNativeRecursive = nativeRecursive
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this.options.manualRecursive = !nativeRecursive
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this._startListeners(paths)
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})
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} else {
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this._startListeners(paths)
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}
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}
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}
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function emitReady(self) {
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if (!self._isReady) {
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self._isReady = true;
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// do not call emit for 'ready' until after watch() has returned,
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// so that consumer can call on().
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process.nextTick(function () {
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self.emit('ready');
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});
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_startListeners(paths) {
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Promise.all(paths.map(path => this.safeAdd(path)))
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.then(
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() => this.emit('ready'),
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err => this.emit('error', err),
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)
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}
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}
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function emitClose(self) {
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self.emit('close');
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}
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Watcher.prototype.add = function(watcher, info) {
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var self = this;
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info = info || { fpath: '' };
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var watcherPath = path.resolve(info.fpath);
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this.watchers[watcherPath] = watcher;
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// Internal callback for handling fs.FSWatcher 'change' events
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var internalOnChange = function(rawEvt, rawName) {
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if (self.isClosed()) {
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return;
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}
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// normalise lack of name and convert to full path
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var name = rawName;
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if (is.nil(name)) {
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name = '';
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}
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name = path.join(info.fpath, name);
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if (info.options.recursive) {
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hasNativeRecursive(function(has) {
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if (!has) {
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var fullPath = path.resolve(name);
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// remove watcher on removal
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if (!is.exists(name)) {
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self.close(fullPath);
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}
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// watch new created directory
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else {
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var shouldWatch = is.directory(name)
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&& !self.watchers[fullPath]
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&& shouldNotSkip(name, info.options.filter);
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if (shouldWatch) {
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self.watchDirectory(name, info.options);
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}
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}
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}
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});
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}
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handlePublicEvents(rawEvt, name);
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};
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// Debounced based on the 'delay' option
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var handlePublicEvents = debounce(info, function (evt, name) {
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// watch single file
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if (info.compareName) {
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if (info.compareName(name)) {
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self.emit('change', evt, name);
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getWatcherOrNull(name) {
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for (let check of this.listeners) {
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if (check.path === name) {
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return check
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}
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}
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// watch directory
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else {
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var filterGuard = guard(info.options.filter);
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filterGuard(name, function() {
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if (self.flag) self.flag = '';
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else self.emit('change', evt, name);
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});
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}
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});
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return null
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}
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watcher.on('error', function(err) {
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if (self.isClosed()) {
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return;
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shouldInclude(name) {
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return this.options.filter
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?
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(is.func(this.options.filter) && this.options.filter.call(this, name) === true)
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|| (is.regExp(this.options.filter) && this.options.filter.test(name))
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: true
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}
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closeWatch(orgItem) {
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let item = orgItem
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if (typeof item === 'string') {
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item = getWatcherOrNull(item)
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}
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if (!item) {
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this.emit('error', new Error(`attempted to close watcher for ${item} but such a watcher could not be found`))
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return
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}
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if (item.watcher) {
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item.watcher.close()
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}
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this._emitEvent(item, EVENT_REMOVE, item.path)
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let index = this.listeners.indexOf(item)
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if (index < 0) return
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this.listeners.splice(index, 1)
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}
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_emitEvent(item, evt, name) {
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if (item.type === TYPE_FILE && !is.samePath(name, item.filename)) return
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if (item.type === TYPE_DIRECTORY && !this.shouldInclude(name)) return
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if (item.flag) {
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item.flag = ''
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return
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}
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let outputName = name
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if (this.options.encoding !== 'utf8') {
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outputName = Buffer.from(outputName)
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if (this.options.encoding !== 'buffer') {
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outputName = outputName.toString(this.options.encoding)
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}
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}
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if (!this.options.delay) {
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this.emit('change', evt, outputName)
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return
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}
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this._cache.push([evt, name, outputName])
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if (this._cacheTimeout) return
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this._cacheTimeout = setTimeout(() => {
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let cache = this._filterCache(this._cache)
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this._cache = []
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this._cacheTimeout = null
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for (let event of cache) {
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try {
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this.emit('change', event[0], event[2])
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} catch (err) {
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this.emit('error', err)
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}
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}
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}, this.options.delay)
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}
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_filterCache(cache) {
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let setFound = new Set()
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let out = cache.reverse().filter(([evt, name]) => {
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if (setFound.has(name)) return false
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setFound.add(name)
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return true
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}).reverse()
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return out
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}
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_watcherSink(item, rawEvt, rawName) {
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if (this.closed) return
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let name = path.join(item.path, rawName || '')
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let evt = is.exists(name) ? EVENT_UPDATE : EVENT_REMOVE
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if (this.options.recursive && this.options.manualRecursive && item.type === TYPE_DIRECTORY) {
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if (evt === EVENT_REMOVE) {
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this.closeWatch(name)
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return
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} else {
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if (is.directory(name)
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&& this.getWatcherOrNull(name) === null
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&& this.shouldInclude(name) === false) {
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this.safeAdd(subItem, TYPE_DIRECTORY)
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}
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}
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}
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this._emitEvent(item, evt, name)
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}
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_pathToItem(name, type) {
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if (type === TYPE_FILE) {
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let parent = path.join(name, '../')
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return {
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path: parent,
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type: TYPE_FILE,
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filename: name,
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watcher: null,
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flag: '',
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}
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} else {
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return {
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path: name,
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type: TYPE_DIRECTORY,
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watcher: null,
|
||||
flag: '',
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
_watcherError(item, err) {
|
||||
if (this.closed) return
|
||||
|
||||
if (is.windows() && err.code === 'EPERM') {
|
||||
watcher.emit('change', EVENT_REMOVE, info.fpath && '');
|
||||
self.flag = 'windows-error';
|
||||
self.close(watcherPath);
|
||||
this.closeWatch(item)
|
||||
item.flag = 'windows-error'
|
||||
} else {
|
||||
self.emit('error', err);
|
||||
self.emit('error', err)
|
||||
}
|
||||
});
|
||||
|
||||
watcher.on('change', internalOnChange);
|
||||
}
|
||||
|
||||
Watcher.prototype.watchFile = function(file, options, fn) {
|
||||
var parent = path.join(file, '../');
|
||||
var opts = Object.assign({}, options, {
|
||||
// no filter for single file
|
||||
filter: null,
|
||||
encoding: 'utf8'
|
||||
});
|
||||
|
||||
// no need to watch recursively
|
||||
delete opts.recursive;
|
||||
|
||||
var watcher = tryWatch(this, parent, opts);
|
||||
if (!watcher) {
|
||||
return;
|
||||
}
|
||||
|
||||
this.add(watcher, {
|
||||
type: 'file',
|
||||
fpath: parent,
|
||||
options: Object.assign({}, opts, {
|
||||
encoding: options.encoding
|
||||
}),
|
||||
compareName: function(n) {
|
||||
return is.samePath(n, file);
|
||||
safeAdd(name, orgType) {
|
||||
let type = orgType
|
||||
if (!type) {
|
||||
type = is.file(name) ? TYPE_FILE : TYPE_DIRECTORY
|
||||
}
|
||||
});
|
||||
|
||||
if (is.func(fn)) {
|
||||
if (fn.length === 1) deprecationWarning();
|
||||
this.on('change', fn);
|
||||
let item = this._pathToItem(name, type)
|
||||
let options = {
|
||||
encoding: 'utf8',
|
||||
signal: this.ac.signal,
|
||||
}
|
||||
if (!this.options.manualRecursive && item.type !== TYPE_FILE && this.options.recursive) {
|
||||
options.recursive = true
|
||||
}
|
||||
|
||||
try {
|
||||
item.watcher = this._fs.watch(item.path, options)
|
||||
} catch (err) {
|
||||
this.emitAsync('error', err)
|
||||
}
|
||||
|
||||
if (!item.watcher) return
|
||||
|
||||
this.listeners.push(item)
|
||||
|
||||
item.watcher.on('error', this._watcherError.bind(this, item))
|
||||
item.watcher.on('change', this._watcherSink.bind(this, item))
|
||||
|
||||
if (options.recursive || item.type === TYPE_FILE) return
|
||||
|
||||
return fsPromise.readdir(item.path, { withFileTypes: true })
|
||||
.then(directories => directories.filter(dir => dir.isDirectory()))
|
||||
.then(directories => {
|
||||
return Promise.all(directories.map(dir => this.safeAdd(path.join(item.path, dir.name), TYPE_DIRECTORY)))
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Watcher.prototype.updateDelay = function(delay) {
|
||||
console.log()
|
||||
}
|
||||
|
||||
Watcher.prototype.watchDirectory = function(dir, options, fn, counter = nullCounter) {
|
||||
var self = this;
|
||||
var done = counter();
|
||||
hasNativeRecursive(function(has) {
|
||||
// always specify recursive
|
||||
options.recursive = !!options.recursive;
|
||||
// using utf8 internally
|
||||
var opts = Object.assign({}, options, {
|
||||
encoding: 'utf8'
|
||||
});
|
||||
if (!has) {
|
||||
delete opts.recursive;
|
||||
}
|
||||
|
||||
// check if it's closed before calling watch.
|
||||
if (self._isClosed) {
|
||||
done();
|
||||
return self.close();
|
||||
}
|
||||
|
||||
var watcher = tryWatch(self, dir, opts);
|
||||
if (!watcher) {
|
||||
done();
|
||||
return;
|
||||
}
|
||||
|
||||
self.add(watcher, {
|
||||
type: 'dir',
|
||||
fpath: dir,
|
||||
options: options
|
||||
});
|
||||
|
||||
if (is.func(fn)) {
|
||||
if (fn.length === 1) deprecationWarning();
|
||||
self.on('change', fn);
|
||||
}
|
||||
|
||||
if (options.recursive && !has) {
|
||||
getSubDirectories(dir, function(d) {
|
||||
if (shouldNotSkip(d, options.filter)) {
|
||||
self.watchDirectory(d, options, null, counter);
|
||||
}
|
||||
}, counter());
|
||||
}
|
||||
|
||||
done();
|
||||
});
|
||||
}
|
||||
|
||||
function composeWatcher(watchers) {
|
||||
var watcher = new Watcher();
|
||||
var filterDups = createDupsFilter();
|
||||
var counter = watchers.length;
|
||||
|
||||
watchers.forEach(function(w) {
|
||||
w.on('change', filterDups(function(evt, name) {
|
||||
watcher.emit('change', evt, name);
|
||||
}));
|
||||
w.on('error', function(err) {
|
||||
watcher.emit('error', err);
|
||||
});
|
||||
w.on('ready', function() {
|
||||
if (!(--counter)) {
|
||||
emitReady(watcher);
|
||||
}
|
||||
});
|
||||
});
|
||||
|
||||
watcher.close = function() {
|
||||
watchers.forEach(function(w) {
|
||||
w.close();
|
||||
});
|
||||
process.nextTick(emitClose, watcher);
|
||||
}
|
||||
|
||||
watcher.getWatchedPaths = function(fn) {
|
||||
if (is.func(fn)) {
|
||||
var promises = watchers.map(function(w) {
|
||||
return new Promise(function(resolve) {
|
||||
w.getWatchedPaths(resolve);
|
||||
});
|
||||
});
|
||||
Promise.all(promises).then(function(result) {
|
||||
var ret = unique(flat1(result));
|
||||
fn(ret);
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
return watcher.expose();
|
||||
}
|
||||
|
||||
export default function watch(fpath, options, fn) {
|
||||
var watcher = new Watcher();
|
||||
|
||||
if (is.buffer(fpath)) {
|
||||
fpath = fpath.toString();
|
||||
}
|
||||
|
||||
if (!is.array(fpath) && !is.exists(fpath)) {
|
||||
process.nextTick(function() {
|
||||
watcher.emit('error',
|
||||
new Error(fpath + ' does not exist.')
|
||||
);
|
||||
});
|
||||
}
|
||||
|
||||
if (is.string(options)) {
|
||||
throw new Error(`Invalid option, encoding as string is no longer supported. Use { encoding: "${options}" } instead.`)
|
||||
}
|
||||
|
||||
if (is.func(options)) {
|
||||
fn = options;
|
||||
options = {};
|
||||
}
|
||||
|
||||
if (arguments.length < 2) {
|
||||
options = {};
|
||||
}
|
||||
|
||||
if (options.encoding) {
|
||||
assertEncoding(options.encoding);
|
||||
} else {
|
||||
options.encoding = 'utf8';
|
||||
}
|
||||
|
||||
if (is.array(fpath)) {
|
||||
if (fpath.length === 1) {
|
||||
return watch(fpath[0], options, fn);
|
||||
}
|
||||
var filterDups = createDupsFilter();
|
||||
return composeWatcher(unique(fpath).map(function(f) {
|
||||
var w = watch(f, options);
|
||||
if (is.func(fn)) {
|
||||
w.on('change', filterDups(fn));
|
||||
}
|
||||
return w;
|
||||
}));
|
||||
}
|
||||
|
||||
if (is.file(fpath)) {
|
||||
watcher.watchFile(fpath, options, fn);
|
||||
emitReady(watcher);
|
||||
}
|
||||
|
||||
else if (is.directory(fpath)) {
|
||||
var counter = semaphore(function () {
|
||||
emitReady(watcher);
|
||||
});
|
||||
watcher.watchDirectory(fpath, options, fn, counter);
|
||||
}
|
||||
|
||||
return watcher.expose();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -185,7 +185,6 @@ t.describe('CLI', function() {
|
|||
cli.targets = ['test/testtree/*/*.mjs']
|
||||
await cli.processTargets()
|
||||
|
||||
console.log(cli.files)
|
||||
assert.strictEqual(cli.files.length, 4)
|
||||
cli.files.sort()
|
||||
assert.deepEqual(cli.files, [
|
||||
|
|
|
|||
|
|
@ -1,10 +1,9 @@
|
|||
import path from 'path'
|
||||
import fs from 'fs'
|
||||
import assert from '../lib/assert.mjs'
|
||||
import t from '../lib/eltro.mjs'
|
||||
import { Builder, Counter } from './watch/builder.mjs'
|
||||
import watch from '../lib/watch/index.mjs'
|
||||
import * as is from '../lib/watch/is.mjs'
|
||||
import hasNativeRecursive from '../lib/watch/has-native-recursive.mjs'
|
||||
import Watcher from '../lib/watch/index.mjs'
|
||||
|
||||
const builder = new Builder()
|
||||
let watcher
|
||||
|
|
@ -32,27 +31,12 @@ t.after(function() {
|
|||
}
|
||||
})
|
||||
|
||||
function wait(fn, timeout) {
|
||||
try {
|
||||
fn()
|
||||
} catch (error) {
|
||||
timeout -= 30
|
||||
if (timeout >= 0) {
|
||||
setTimeout(function() {
|
||||
wait(fn, timeout)
|
||||
}, 30)
|
||||
} else {
|
||||
throw error
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
t.only().describe('watcher', function() {
|
||||
t.describe('watcher', function() {
|
||||
t.describe('process events', function() {
|
||||
t.test('should emit `close` event', function(done) {
|
||||
var file = 'home/a/file1'
|
||||
var fpath = builder.getPath(file)
|
||||
watcher = watch(fpath, function() {})
|
||||
watcher = new Watcher(fpath, function() {})
|
||||
watcher.on('close', done)
|
||||
watcher.close()
|
||||
})
|
||||
|
|
@ -60,13 +44,13 @@ t.only().describe('watcher', function() {
|
|||
t.test('should emit `ready` event when watching a file', function(done) {
|
||||
var file = 'home/a/file1'
|
||||
var fpath = builder.getPath(file)
|
||||
watcher = watch(fpath)
|
||||
watcher = new Watcher(fpath)
|
||||
watcher.on('ready', done)
|
||||
})
|
||||
|
||||
t.test('should emit `ready` event when watching a directory recursively', function(done) {
|
||||
var dir = builder.getPath('home')
|
||||
watcher = watch(dir, { recursive: true })
|
||||
watcher = new Watcher(dir, { recursive: true })
|
||||
watcher.on('ready', done)
|
||||
})
|
||||
|
||||
|
|
@ -74,7 +58,7 @@ t.only().describe('watcher', function() {
|
|||
var dir1 = builder.getPath('home/a')
|
||||
var dir2 = builder.getPath('home/b')
|
||||
var file = builder.getPath('home/b/file1')
|
||||
watcher = watch([dir1, dir2, file], { recursive: true })
|
||||
watcher = new Watcher([dir1, dir2, file], { recursive: true })
|
||||
watcher.on('ready', done)
|
||||
})
|
||||
})
|
||||
|
|
@ -84,7 +68,7 @@ t.only().describe('watcher', function() {
|
|||
var counter = new Counter(done, 3)
|
||||
var file = 'home/a/file1'
|
||||
var fpath = builder.getPath(file)
|
||||
watcher = watch(fpath, { delay: 0 }, function(evt, name) {
|
||||
watcher = new Watcher(fpath, { delay: 0 }, function(evt, name) {
|
||||
assert.strictEqual(fpath, name)
|
||||
counter.count()
|
||||
})
|
||||
|
|
@ -105,7 +89,7 @@ t.only().describe('watcher', function() {
|
|||
builder.newFile('home/a/file1'),
|
||||
builder.newFile('home/a/file2'),
|
||||
]).then(() => {
|
||||
watcher = watch(fpath, { delay: 0 }, function(evt, name) {
|
||||
watcher = new Watcher(fpath, { delay: 0 }, function(evt, name) {
|
||||
set.delete(name)
|
||||
if (!set.size) {
|
||||
done()
|
||||
|
|
@ -130,7 +114,7 @@ t.only().describe('watcher', function() {
|
|||
var middle = start
|
||||
var end = start
|
||||
|
||||
watcher = watch(fpath, { delay: 100 }, function(evt, name) {
|
||||
watcher = new Watcher(fpath, { delay: 100 }, function(evt, name) {
|
||||
if (fpath === name) counter.count()
|
||||
})
|
||||
|
||||
|
|
@ -165,7 +149,7 @@ t.only().describe('watcher', function() {
|
|||
])
|
||||
var changes = []
|
||||
var extra = []
|
||||
watcher = watch(home, { delay: 0, recursive: true }, function(evt, name) {
|
||||
watcher = new Watcher(home, { delay: 0, recursive: true }, function(evt, name) {
|
||||
if (set.has(name)) {
|
||||
changes.push(name)
|
||||
counter.count()
|
||||
|
|
@ -189,16 +173,14 @@ t.only().describe('watcher', function() {
|
|||
var fpath = builder.getPath('home/a/file1')
|
||||
builder.newFile('home/a/file1')
|
||||
.then(() => {
|
||||
watcher = watch(fpath, Object.defineProperty({}, 'test', {
|
||||
enumerable: true,
|
||||
get: function() {
|
||||
builder.removeSync('home/a')
|
||||
return 'test'
|
||||
}
|
||||
watcher = new Watcher(fpath, null, null, { fs: { watch: function(path, options) {
|
||||
builder.removeSync('home/a')
|
||||
return fs.watch(path, options)
|
||||
} } })
|
||||
|
||||
watcher.on('error', done.finish(function(err) {
|
||||
assert.deepStrictEqual(watcher.listeners, [])
|
||||
}))
|
||||
watcher.on('error', function() {
|
||||
done()
|
||||
})
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
@ -209,7 +191,7 @@ t.only().describe('watcher', function() {
|
|||
var dir = builder.getPath('home/c')
|
||||
|
||||
builder.createDirectory('home/c').then(() => {
|
||||
watcher = watch(home, { delay: 0, recursive: true }, function(evt, name) {
|
||||
watcher = new Watcher(home, { delay: 0, recursive: true }, function(evt, name) {
|
||||
if (name === dir && evt === 'remove') {
|
||||
done()
|
||||
}
|
||||
|
|
@ -224,7 +206,7 @@ t.only().describe('watcher', function() {
|
|||
var home = builder.getPath('home')
|
||||
|
||||
builder.remove('home/new').then(() => {
|
||||
watcher = watch(home, { delay: 0, recursive: true }, function(evt, name) {
|
||||
watcher = new Watcher(home, { delay: 0, recursive: true }, function(evt, name) {
|
||||
if (name === builder.getPath('home/new/file1')) {
|
||||
done()
|
||||
}
|
||||
|
|
@ -244,19 +226,20 @@ t.only().describe('watcher', function() {
|
|||
var options = {
|
||||
delay: 0,
|
||||
recursive: true,
|
||||
filter: function(filePath, SKIP_FLAG) {
|
||||
filter: function(filePath) {
|
||||
if (/ignored/.test(filePath)) {
|
||||
counter.count()
|
||||
return SKIP_FLAG
|
||||
return false
|
||||
}
|
||||
return false
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
builder.remove('home/ignored/file').then(() => {
|
||||
watcher = watch(home, options, function(evt, name) {
|
||||
watcher = new Watcher(home, options, function(evt, name) {
|
||||
assert.fail("should not watch new created directories which are being skipped in the filter event detect: " + name)
|
||||
})
|
||||
|
||||
|
||||
watcher.on('ready', function() {
|
||||
builder.newFile('home/ignored/file')
|
||||
|
|
@ -279,7 +262,7 @@ t.only().describe('watcher', function() {
|
|||
builder.newFile('home/e/file2'),
|
||||
]).then(() => {
|
||||
|
||||
watcher = watch(home, { delay: 0, recursive: true }, function(evt, name) {
|
||||
watcher = new Watcher(home, { delay: 0, recursive: true }, function(evt, name) {
|
||||
if (name === dir || name === file1 || name === file2) {
|
||||
if (!set.has(name)) {
|
||||
set.add(name)
|
||||
|
|
@ -301,7 +284,7 @@ t.only().describe('watcher', function() {
|
|||
var home = builder.getPath('home')
|
||||
|
||||
builder.remove('home/new').then(() => {
|
||||
watcher = watch(home, { delay: 200, recursive: true }, function(evt, name) {
|
||||
watcher = new Watcher(home, { delay: 200, recursive: true }, function(evt, name) {
|
||||
if (name === builder.getPath('home/new/file1')) {
|
||||
counter.count()
|
||||
}
|
||||
|
|
@ -319,16 +302,14 @@ t.only().describe('watcher', function() {
|
|||
var fpath = builder.getPath(dir)
|
||||
|
||||
builder.createDirectory(dir).then(() => {
|
||||
watcher = watch(fpath, Object.defineProperty({}, 'test', {
|
||||
enumerable: true,
|
||||
get: function() {
|
||||
builder.removeSync(dir)
|
||||
return 'test'
|
||||
}
|
||||
watcher = new Watcher(fpath, null, null, { fs: { watch: function(path, options) {
|
||||
builder.removeSync(dir)
|
||||
return fs.watch(path, options)
|
||||
} } })
|
||||
|
||||
watcher.on('error', done.finish(function(err) {
|
||||
assert.deepStrictEqual(watcher.listeners, [])
|
||||
}))
|
||||
watcher.on('error', function() {
|
||||
done()
|
||||
})
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
@ -342,7 +323,7 @@ t.only().describe('watcher', function() {
|
|||
})
|
||||
|
||||
t.test('should identify `remove` event', function(done) {
|
||||
watcher = watch(fpath, { delay: 0 }, function(evt, name) {
|
||||
watcher = new Watcher(fpath, { delay: 0 }, function(evt, name) {
|
||||
if (evt === 'remove' && name === fpath) {
|
||||
done()
|
||||
}
|
||||
|
|
@ -357,7 +338,7 @@ t.only().describe('watcher', function() {
|
|||
var home = builder.getPath('home')
|
||||
var fpath = builder.getPath(dir)
|
||||
|
||||
watcher = watch(home, { delay: 0 }, function(evt, name) {
|
||||
watcher = new Watcher(home, { delay: 0 }, function(evt, name) {
|
||||
if (evt === 'remove' && name === fpath) done()
|
||||
})
|
||||
watcher.on('ready', function() {
|
||||
|
|
@ -372,7 +353,7 @@ t.only().describe('watcher', function() {
|
|||
builder.newRandomFiles(dir, 100).then(names => {
|
||||
var counter = new Counter(done, names.length)
|
||||
|
||||
watcher = watch(fpath, { delay: 10 }, function(evt, name) {
|
||||
watcher = new Watcher(fpath, { delay: 10 }, function(evt, name) {
|
||||
if (evt === 'remove') counter.count()
|
||||
})
|
||||
|
||||
|
|
@ -386,7 +367,7 @@ t.only().describe('watcher', function() {
|
|||
var file = 'home/b/file1'
|
||||
var fpath = builder.getPath(file)
|
||||
builder.newFile(file).then(() => {
|
||||
watcher = watch(fpath, { delay: 0 }, function(evt, name) {
|
||||
watcher = new Watcher(fpath, { delay: 0 }, function(evt, name) {
|
||||
if (evt === 'update' && name === fpath) done()
|
||||
})
|
||||
watcher.on('ready', function() {
|
||||
|
|
@ -400,7 +381,7 @@ t.only().describe('watcher', function() {
|
|||
var file = 'home/a/newfile_' + builder.randomName()
|
||||
var fpath = builder.getPath(file)
|
||||
|
||||
watcher = watch(dir, { delay: 0 }, function(evt, name) {
|
||||
watcher = new Watcher(dir, { delay: 0 }, function(evt, name) {
|
||||
if (evt === 'update' && name === fpath) done()
|
||||
})
|
||||
watcher.on('ready', function() {
|
||||
|
|
@ -414,7 +395,7 @@ t.only().describe('watcher', function() {
|
|||
t.test('should watch recursively with `recursive: true` option', function(done) {
|
||||
var dir = builder.getPath('home')
|
||||
var file = builder.getPath('home/bb/file1')
|
||||
watcher = watch(dir, { delay: 0, recursive: true }, function(evt, name) {
|
||||
watcher = new Watcher(dir, { delay: 0, recursive: true }, function(evt, name) {
|
||||
if (file === name) {
|
||||
done()
|
||||
}
|
||||
|
|
@ -442,7 +423,7 @@ t.only().describe('watcher', function() {
|
|||
t.test('should throw on invalid encoding', function(done) {
|
||||
options.encoding = 'unknown'
|
||||
try {
|
||||
watcher = watch(fdir, options)
|
||||
watcher = new Watcher(fdir, options)
|
||||
} catch (e) {
|
||||
done()
|
||||
}
|
||||
|
|
@ -450,7 +431,7 @@ t.only().describe('watcher', function() {
|
|||
|
||||
t.test('should accept an encoding string', function(done) {
|
||||
options.encoding = 'utf8'
|
||||
watcher = watch(fdir, options, done.finish(function(evt, name) {
|
||||
watcher = new Watcher(fdir, options, done.finish(function(evt, name) {
|
||||
assert.strictEqual(name.toString(), fpath)
|
||||
}))
|
||||
watcher.on('ready', function() {
|
||||
|
|
@ -460,7 +441,7 @@ t.only().describe('watcher', function() {
|
|||
|
||||
t.test('should support buffer encoding', function(done) {
|
||||
options.encoding = 'buffer'
|
||||
watcher = watch(fdir, options, done.finish(function(evt, name) {
|
||||
watcher = new Watcher(fdir, options, done.finish(function(evt, name) {
|
||||
assert.ok(Buffer.isBuffer(name), 'not a Buffer')
|
||||
assert.strictEqual(name.toString(), fpath)
|
||||
}))
|
||||
|
|
@ -472,7 +453,7 @@ t.only().describe('watcher', function() {
|
|||
|
||||
t.test('should support base64 encoding', function(done) {
|
||||
options.encoding = 'base64'
|
||||
watcher = watch(fdir, options, done.finish(function(evt, name) {
|
||||
watcher = new Watcher(fdir, options, done.finish(function(evt, name) {
|
||||
assert.strictEqual(
|
||||
name,
|
||||
Buffer.from(fpath).toString('base64'),
|
||||
|
|
@ -486,7 +467,7 @@ t.only().describe('watcher', function() {
|
|||
|
||||
t.test('should support hex encoding', function(done) {
|
||||
options.encoding = 'hex'
|
||||
watcher = watch(fdir, options, done.finish(function(evt, name) {
|
||||
watcher = new Watcher(fdir, options, done.finish(function(evt, name) {
|
||||
assert.strictEqual(
|
||||
name,
|
||||
Buffer.from(fpath).toString('hex'),
|
||||
|
|
@ -516,7 +497,7 @@ t.only().describe('watcher', function() {
|
|||
}
|
||||
}
|
||||
|
||||
watcher = watch(builder.getPath('home'), options, function(evt, name) {
|
||||
watcher = new Watcher(builder.getPath('home'), options, function(evt, name) {
|
||||
if (/deep_node_modules/.test(name)) {
|
||||
matchIgnoredDir = true
|
||||
} else {
|
||||
|
|
@ -552,7 +533,7 @@ t.only().describe('watcher', function() {
|
|||
|
||||
var times = 0
|
||||
var matchIgnoredFile = false
|
||||
watcher = watch(dir, options, function(evt, name) {
|
||||
watcher = new Watcher(dir, options, function(evt, name) {
|
||||
if (name === builder.getPath(file1)) {
|
||||
matchIgnoredFile = true
|
||||
}
|
||||
|
|
@ -585,7 +566,7 @@ t.only().describe('watcher', function() {
|
|||
|
||||
var times = 0
|
||||
var matchIgnoredFile = false
|
||||
watcher = watch(dir, options, function(evt, name) {
|
||||
watcher = new Watcher(dir, options, function(evt, name) {
|
||||
if (name === builder.getPath(file1)) {
|
||||
matchIgnoredFile = true
|
||||
}
|
||||
|
|
@ -605,31 +586,21 @@ t.only().describe('watcher', function() {
|
|||
var options = {
|
||||
delay: 0,
|
||||
recursive: true,
|
||||
manualRecursive: true,
|
||||
filter: function(name, skip) {
|
||||
if (/\/deep_node_modules/.test(name)) return skip
|
||||
}
|
||||
}
|
||||
watcher = watch(home, options)
|
||||
watcher = new Watcher(home, options)
|
||||
|
||||
watcher.getWatchedPaths(function(paths) {
|
||||
hasNativeRecursive(function(supportRecursive) {
|
||||
var watched = supportRecursive
|
||||
// The skip flag has no effect to the platforms which support recursive option,
|
||||
// so the home directory is the only one that's in the watching list.
|
||||
? [home]
|
||||
// The deep_node_modules and all its subdirectories should not be watched
|
||||
// with skip flag specified in the filter.
|
||||
: builder.getAllDirectories().filter(function(name) {
|
||||
return !/\/deep_node_modules/.test(name)
|
||||
})
|
||||
watcher.on('ready', done.finish(function() {
|
||||
let homeFiltered = builder.getAllDirectories().filter(function(name) {
|
||||
return !/\/deep_node_modules/.test(name)
|
||||
}).sort()
|
||||
let watchersPaths = watcher.listeners.map(x => x.path).sort()
|
||||
|
||||
assert.deepStrictEqual(
|
||||
watched.sort(), paths.sort()
|
||||
)
|
||||
|
||||
done()
|
||||
})
|
||||
})
|
||||
assert.deepStrictEqual(watchersPaths, homeFiltered)
|
||||
}))
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
@ -637,7 +608,7 @@ t.only().describe('watcher', function() {
|
|||
t.describe('parameters', function() {
|
||||
t.test('should throw error on non-existed file', function(done) {
|
||||
var somedir = builder.getPath('home/somedir')
|
||||
watcher = watch(somedir)
|
||||
watcher = new Watcher(somedir)
|
||||
watcher.on('error', done.finish(function(err) {
|
||||
assert.match(err.message, /not exist/)
|
||||
}))
|
||||
|
|
@ -645,7 +616,7 @@ t.only().describe('watcher', function() {
|
|||
|
||||
t.test('should accept filename as Buffer', function(done) {
|
||||
var fpath = builder.getPath('home/a/file1')
|
||||
watcher = watch(Buffer.from(fpath), { delay: 0 }, done.finish(function(evt, name) {
|
||||
watcher = new Watcher(Buffer.from(fpath), { delay: 0 }, done.finish(function(evt, name) {
|
||||
assert.strictEqual(name, fpath)
|
||||
}))
|
||||
watcher.on('ready', function() {
|
||||
|
|
@ -667,7 +638,7 @@ t.only().describe('watcher', function() {
|
|||
builder.newFile(file1),
|
||||
builder.newFile(file2),
|
||||
]).then(function() {
|
||||
watcher = watch(fpaths, { delay: 0 }, function(evt, name) {
|
||||
watcher = new Watcher(fpaths, { delay: 0 }, function(evt, name) {
|
||||
if (set.has(name)) {
|
||||
set.delete(name)
|
||||
counter.count()
|
||||
|
|
@ -696,9 +667,8 @@ t.only().describe('watcher', function() {
|
|||
builder.getPath(file2)
|
||||
]
|
||||
|
||||
console.log()
|
||||
var changes = []
|
||||
watcher = watch(fpaths, { delay: 100, recursive: true }, function(evt, name) {
|
||||
watcher = new Watcher(fpaths, { delay: 100, recursive: true }, function(evt, name) {
|
||||
changes.push(name)
|
||||
counter.count()
|
||||
})
|
||||
|
|
@ -728,7 +698,7 @@ t.only().describe('watcher', function() {
|
|||
var file = 'home/a/file1'
|
||||
var fpath = builder.getPath(file)
|
||||
|
||||
watcher = watch(dir, { delay: 0 })
|
||||
watcher = new Watcher(dir, { delay: 0 })
|
||||
|
||||
watcher.on('change', done.finish(function(evt, name) {
|
||||
assert.strictEqual(evt, 'update')
|
||||
|
|
@ -736,7 +706,7 @@ t.only().describe('watcher', function() {
|
|||
}))
|
||||
|
||||
watcher.on('ready', done.wrap(function() {
|
||||
builder.modify(file)
|
||||
builder.modify(file).catch(done)
|
||||
}))
|
||||
})
|
||||
|
||||
|
|
@ -745,7 +715,7 @@ t.only().describe('watcher', function() {
|
|||
var dir = builder.getPath('home/a')
|
||||
var file = 'home/a/file1'
|
||||
var times = 0
|
||||
watcher = watch(dir, { delay: 0 })
|
||||
watcher = new Watcher(dir, { delay: 0 })
|
||||
watcher.on('change', function(evt, name) {
|
||||
times++
|
||||
})
|
||||
|
|
@ -766,76 +736,16 @@ t.only().describe('watcher', function() {
|
|||
|
||||
t.test('should not watch after .close() is called', function(done) {
|
||||
var dir = builder.getPath('home')
|
||||
watcher = watch(dir, { delay: 0, recursive: true })
|
||||
watcher.close()
|
||||
watcher = new Watcher(dir, { delay: 0, recursive: true })
|
||||
|
||||
watcher.getWatchedPaths(done.finish(function(dirs) {
|
||||
assert.strictEqual(dirs.length, 0)
|
||||
watcher.on('ready', function() {
|
||||
watcher.close()
|
||||
})
|
||||
|
||||
watcher.on('close', done.finish(function(dirs) {
|
||||
assert.strictEqual(watcher.listeners.length, 0)
|
||||
}))
|
||||
})
|
||||
})
|
||||
|
||||
t.describe('getWatchedPaths()', function() {
|
||||
t.test('should get all the watched paths', function(done) {
|
||||
var home = builder.getPath('home')
|
||||
watcher = watch(home, { delay: 0, recursive: true })
|
||||
|
||||
watcher.getWatchedPaths(function(paths) {
|
||||
hasNativeRecursive(done.finish(function(supportRecursive) {
|
||||
var watched = supportRecursive
|
||||
// The home directory is the only one that's being watched
|
||||
// if the recursive option is natively supported.
|
||||
? [home]
|
||||
// Otherwise it should include all its subdirectories.
|
||||
: builder.getAllDirectories()
|
||||
|
||||
assert.deepStrictEqual(
|
||||
watched.sort(), paths.sort()
|
||||
)
|
||||
}))
|
||||
})
|
||||
})
|
||||
|
||||
t.test('should get its parent path instead of the file itself', function(done) {
|
||||
var file = builder.getPath('home/a/file1')
|
||||
// The parent path is actually being watched instead.
|
||||
var parent = builder.getPath('home/a')
|
||||
|
||||
watcher = watch(file, { delay: 0 })
|
||||
|
||||
watcher.getWatchedPaths(done.finish(function(paths) {
|
||||
assert.deepStrictEqual([parent], paths)
|
||||
}))
|
||||
})
|
||||
|
||||
t.test('should work correctly with composed watcher', function(done) {
|
||||
var a = builder.getPath('home/a')
|
||||
|
||||
var b = builder.getPath('home/b')
|
||||
var file = builder.getPath('home/b/file1')
|
||||
|
||||
var nested = builder.getPath('home/deep_node_modules')
|
||||
var ma = builder.getPath('home/deep_node_modules/ma')
|
||||
var mb = builder.getPath('home/deep_node_modules/mb')
|
||||
var mc = builder.getPath('home/deep_node_modules/mc')
|
||||
|
||||
watcher = watch([a, file, nested], {
|
||||
delay: 0,
|
||||
recursive: true
|
||||
})
|
||||
|
||||
watcher.getWatchedPaths(function(paths) {
|
||||
hasNativeRecursive(done.finish(function(supportRecursive) {
|
||||
var watched = supportRecursive
|
||||
? [a, b, nested]
|
||||
: [a, b, nested, ma, mb, mc]
|
||||
|
||||
assert.deepStrictEqual(
|
||||
watched.sort(), paths.sort()
|
||||
)
|
||||
}))
|
||||
})
|
||||
})
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
@ -135,6 +135,8 @@ Builder.prototype.modify = function(fpath, delay) {
|
|||
Builder.prototype.remove = function(fpath) {
|
||||
let filePath = this.getPath(fpath)
|
||||
return fs.rm(filePath, { recursive: true, force: true })
|
||||
.catch(() => this.delay(100))
|
||||
.then(() => fs.rm(filePath, { recursive: true, force: true }))
|
||||
}
|
||||
|
||||
Builder.prototype.removeSync = function(fpath) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue