384 lines
9.3 KiB
JavaScript
384 lines
9.3 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', {
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value: true
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});
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exports.default = WatchmanWatcher;
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function _assert() {
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const data = require('assert');
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_assert = function () {
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return data;
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};
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return data;
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}
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function _events() {
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const data = require('events');
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_events = function () {
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return data;
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};
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return data;
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}
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function path() {
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const data = _interopRequireWildcard(require('path'));
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path = function () {
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return data;
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};
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return data;
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}
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function _fbWatchman() {
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const data = _interopRequireDefault(require('fb-watchman'));
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_fbWatchman = function () {
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return data;
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};
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return data;
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}
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function _gracefulFs() {
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const data = _interopRequireDefault(require('graceful-fs'));
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_gracefulFs = function () {
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return data;
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};
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return data;
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}
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var _RecrawlWarning = _interopRequireDefault(require('./RecrawlWarning'));
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var _common = _interopRequireDefault(require('./common'));
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function _interopRequireDefault(obj) {
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return obj && obj.__esModule ? obj : {default: obj};
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}
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function _getRequireWildcardCache(nodeInterop) {
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if (typeof WeakMap !== 'function') return null;
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var cacheBabelInterop = new WeakMap();
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var cacheNodeInterop = new WeakMap();
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return (_getRequireWildcardCache = function (nodeInterop) {
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return nodeInterop ? cacheNodeInterop : cacheBabelInterop;
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})(nodeInterop);
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}
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function _interopRequireWildcard(obj, nodeInterop) {
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if (!nodeInterop && obj && obj.__esModule) {
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return obj;
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}
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if (obj === null || (typeof obj !== 'object' && typeof obj !== 'function')) {
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return {default: obj};
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}
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var cache = _getRequireWildcardCache(nodeInterop);
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if (cache && cache.has(obj)) {
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return cache.get(obj);
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}
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var newObj = {};
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var hasPropertyDescriptor =
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Object.defineProperty && Object.getOwnPropertyDescriptor;
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for (var key in obj) {
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if (key !== 'default' && Object.prototype.hasOwnProperty.call(obj, key)) {
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var desc = hasPropertyDescriptor
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? Object.getOwnPropertyDescriptor(obj, key)
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: null;
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if (desc && (desc.get || desc.set)) {
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Object.defineProperty(newObj, key, desc);
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} else {
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newObj[key] = obj[key];
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}
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}
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}
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newObj.default = obj;
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if (cache) {
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cache.set(obj, newObj);
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}
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return newObj;
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}
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/**
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* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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const CHANGE_EVENT = _common.default.CHANGE_EVENT;
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const DELETE_EVENT = _common.default.DELETE_EVENT;
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const ADD_EVENT = _common.default.ADD_EVENT;
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const ALL_EVENT = _common.default.ALL_EVENT;
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const SUB_NAME = 'sane-sub';
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/**
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* Watches `dir`.
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*
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* @class PollWatcher
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* @param String dir
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* @param {Object} opts
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* @public
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*/
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function WatchmanWatcher(dir, opts) {
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_common.default.assignOptions(this, opts);
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this.root = path().resolve(dir);
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this.init();
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}
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Object.setPrototypeOf(
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WatchmanWatcher.prototype,
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_events().EventEmitter.prototype
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);
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/**
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* Run the watchman `watch` command on the root and subscribe to changes.
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*
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* @private
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*/
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WatchmanWatcher.prototype.init = function () {
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if (this.client) {
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this.client.removeAllListeners();
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}
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const self = this;
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this.client = new (_fbWatchman().default.Client)();
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this.client.on('error', error => {
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self.emit('error', error);
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});
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this.client.on('subscription', this.handleChangeEvent.bind(this));
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this.client.on('end', () => {
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console.warn('[sane] Warning: Lost connection to watchman, reconnecting..');
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self.init();
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});
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this.watchProjectInfo = null;
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function getWatchRoot() {
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return self.watchProjectInfo ? self.watchProjectInfo.root : self.root;
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}
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function onCapability(error, resp) {
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if (handleError(self, error)) {
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// The Watchman watcher is unusable on this system, we cannot continue
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return;
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}
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handleWarning(resp);
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self.capabilities = resp.capabilities;
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if (self.capabilities.relative_root) {
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self.client.command(['watch-project', getWatchRoot()], onWatchProject);
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} else {
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self.client.command(['watch', getWatchRoot()], onWatch);
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}
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}
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function onWatchProject(error, resp) {
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if (handleError(self, error)) {
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return;
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}
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handleWarning(resp);
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self.watchProjectInfo = {
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relativePath: resp.relative_path ? resp.relative_path : '',
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root: resp.watch
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};
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self.client.command(['clock', getWatchRoot()], onClock);
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}
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function onWatch(error, resp) {
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if (handleError(self, error)) {
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return;
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}
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handleWarning(resp);
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self.client.command(['clock', getWatchRoot()], onClock);
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}
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function onClock(error, resp) {
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if (handleError(self, error)) {
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return;
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}
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handleWarning(resp);
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const options = {
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fields: ['name', 'exists', 'new'],
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since: resp.clock
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};
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// If the server has the wildmatch capability available it supports
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// the recursive **/*.foo style match and we can offload our globs
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// to the watchman server. This saves both on data size to be
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// communicated back to us and compute for evaluating the globs
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// in our node process.
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if (self.capabilities.wildmatch) {
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if (self.globs.length === 0) {
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if (!self.dot) {
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// Make sure we honor the dot option if even we're not using globs.
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options.expression = [
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'match',
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'**',
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'wholename',
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{
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includedotfiles: false
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}
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];
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}
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} else {
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options.expression = ['anyof'];
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for (const i in self.globs) {
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options.expression.push([
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'match',
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self.globs[i],
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'wholename',
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{
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includedotfiles: self.dot
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}
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]);
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}
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}
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}
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if (self.capabilities.relative_root) {
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options.relative_root = self.watchProjectInfo.relativePath;
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}
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self.client.command(
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['subscribe', getWatchRoot(), SUB_NAME, options],
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onSubscribe
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);
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}
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function onSubscribe(error, resp) {
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if (handleError(self, error)) {
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return;
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}
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handleWarning(resp);
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self.emit('ready');
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}
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self.client.capabilityCheck(
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{
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optional: ['wildmatch', 'relative_root']
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},
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onCapability
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);
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};
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/**
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* Handles a change event coming from the subscription.
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*
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* @param {Object} resp
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* @private
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*/
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WatchmanWatcher.prototype.handleChangeEvent = function (resp) {
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_assert().strict.equal(
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resp.subscription,
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SUB_NAME,
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'Invalid subscription event.'
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);
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if (resp.is_fresh_instance) {
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this.emit('fresh_instance');
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}
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if (resp.is_fresh_instance) {
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this.emit('fresh_instance');
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}
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if (Array.isArray(resp.files)) {
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resp.files.forEach(this.handleFileChange, this);
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}
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};
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/**
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* Handles a single change event record.
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*
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* @param {Object} changeDescriptor
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* @private
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*/
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WatchmanWatcher.prototype.handleFileChange = function (changeDescriptor) {
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const self = this;
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let absPath;
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let relativePath;
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if (this.capabilities.relative_root) {
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relativePath = changeDescriptor.name;
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absPath = path().join(
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this.watchProjectInfo.root,
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this.watchProjectInfo.relativePath,
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relativePath
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);
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} else {
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absPath = path().join(this.root, changeDescriptor.name);
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relativePath = changeDescriptor.name;
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}
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if (
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!(self.capabilities.wildmatch && !this.hasIgnore) &&
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!_common.default.isFileIncluded(
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this.globs,
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this.dot,
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this.doIgnore,
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relativePath
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)
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) {
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return;
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}
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if (!changeDescriptor.exists) {
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self.emitEvent(DELETE_EVENT, relativePath, self.root);
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} else {
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_gracefulFs().default.lstat(absPath, (error, stat) => {
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// Files can be deleted between the event and the lstat call
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// the most reliable thing to do here is to ignore the event.
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if (error && error.code === 'ENOENT') {
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return;
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}
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if (handleError(self, error)) {
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return;
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}
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const eventType = changeDescriptor.new ? ADD_EVENT : CHANGE_EVENT;
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// Change event on dirs are mostly useless.
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if (!(eventType === CHANGE_EVENT && stat.isDirectory())) {
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self.emitEvent(eventType, relativePath, self.root, stat);
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}
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});
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}
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};
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/**
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* Dispatches the event.
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*
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* @param {string} eventType
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* @param {string} filepath
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* @param {string} root
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* @param {fs.Stat} stat
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* @private
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*/
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WatchmanWatcher.prototype.emitEvent = function (
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eventType,
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filepath,
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root,
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stat
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) {
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this.emit(eventType, filepath, root, stat);
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this.emit(ALL_EVENT, eventType, filepath, root, stat);
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};
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/**
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* Closes the watcher.
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*
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*/
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WatchmanWatcher.prototype.close = function () {
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this.client.removeAllListeners();
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this.client.end();
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return Promise.resolve();
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};
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/**
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* Handles an error and returns true if exists.
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*
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* @param {WatchmanWatcher} self
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* @param {Error} error
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* @private
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*/
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function handleError(self, error) {
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if (error != null) {
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self.emit('error', error);
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return true;
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} else {
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return false;
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}
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}
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/**
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* Handles a warning in the watchman resp object.
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*
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* @param {object} resp
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* @private
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*/
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function handleWarning(resp) {
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if ('warning' in resp) {
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if (_RecrawlWarning.default.isRecrawlWarningDupe(resp.warning)) {
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return true;
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}
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console.warn(resp.warning);
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return true;
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} else {
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return false;
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}
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}
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