diff options
Diffstat (limited to 'node_modules/jest-haste-map/build/watchers/WatchmanWatcher.js')
-rw-r--r-- | node_modules/jest-haste-map/build/watchers/WatchmanWatcher.js | 418 |
1 files changed, 418 insertions, 0 deletions
diff --git a/node_modules/jest-haste-map/build/watchers/WatchmanWatcher.js b/node_modules/jest-haste-map/build/watchers/WatchmanWatcher.js new file mode 100644 index 0000000..86db538 --- /dev/null +++ b/node_modules/jest-haste-map/build/watchers/WatchmanWatcher.js @@ -0,0 +1,418 @@ +'use strict'; + +Object.defineProperty(exports, '__esModule', { + value: true +}); +exports.default = WatchmanWatcher; + +function _assert() { + const data = _interopRequireDefault(require('assert')); + + _assert = function () { + return data; + }; + + return data; +} + +function _events() { + const data = require('events'); + + _events = function () { + return data; + }; + + return data; +} + +function _path() { + const data = _interopRequireDefault(require('path')); + + _path = function () { + return data; + }; + + return data; +} + +function _fbWatchman() { + const data = _interopRequireDefault(require('fb-watchman')); + + _fbWatchman = function () { + return data; + }; + + return data; +} + +function fs() { + const data = _interopRequireWildcard(require('graceful-fs')); + + fs = function () { + return data; + }; + + return data; +} + +var _RecrawlWarning = _interopRequireDefault(require('./RecrawlWarning')); + +var _common = _interopRequireDefault(require('./common')); + +function _getRequireWildcardCache(nodeInterop) { + if (typeof WeakMap !== 'function') return null; + var cacheBabelInterop = new WeakMap(); + var cacheNodeInterop = new WeakMap(); + return (_getRequireWildcardCache = function (nodeInterop) { + return nodeInterop ? cacheNodeInterop : cacheBabelInterop; + })(nodeInterop); +} + +function _interopRequireWildcard(obj, nodeInterop) { + if (!nodeInterop && obj && obj.__esModule) { + return obj; + } + if (obj === null || (typeof obj !== 'object' && typeof obj !== 'function')) { + return {default: obj}; + } + var cache = _getRequireWildcardCache(nodeInterop); + if (cache && cache.has(obj)) { + return cache.get(obj); + } + var newObj = {}; + var hasPropertyDescriptor = + Object.defineProperty && Object.getOwnPropertyDescriptor; + for (var key in obj) { + if (key !== 'default' && Object.prototype.hasOwnProperty.call(obj, key)) { + var desc = hasPropertyDescriptor + ? Object.getOwnPropertyDescriptor(obj, key) + : null; + if (desc && (desc.get || desc.set)) { + Object.defineProperty(newObj, key, desc); + } else { + newObj[key] = obj[key]; + } + } + } + newObj.default = obj; + if (cache) { + cache.set(obj, newObj); + } + return newObj; +} + +function _interopRequireDefault(obj) { + return obj && obj.__esModule ? obj : {default: obj}; +} + +/** + * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + */ +const CHANGE_EVENT = _common.default.CHANGE_EVENT; +const DELETE_EVENT = _common.default.DELETE_EVENT; +const ADD_EVENT = _common.default.ADD_EVENT; +const ALL_EVENT = _common.default.ALL_EVENT; +const SUB_NAME = 'sane-sub'; +/** + * Watches `dir`. + * + * @class PollWatcher + * @param String dir + * @param {Object} opts + * @public + */ + +function WatchmanWatcher(dir, opts) { + _common.default.assignOptions(this, opts); + + this.root = _path().default.resolve(dir); + this.init(); +} // eslint-disable-next-line no-proto + +WatchmanWatcher.prototype.__proto__ = _events().EventEmitter.prototype; +/** + * Run the watchman `watch` command on the root and subscribe to changes. + * + * @private + */ + +WatchmanWatcher.prototype.init = function () { + if (this.client) { + this.client.removeAllListeners(); + } + + const self = this; + this.client = new (_fbWatchman().default.Client)(); + this.client.on('error', error => { + self.emit('error', error); + }); + this.client.on('subscription', this.handleChangeEvent.bind(this)); + this.client.on('end', () => { + console.warn('[sane] Warning: Lost connection to watchman, reconnecting..'); + self.init(); + }); + this.watchProjectInfo = null; + + function getWatchRoot() { + return self.watchProjectInfo ? self.watchProjectInfo.root : self.root; + } + + function onCapability(error, resp) { + if (handleError(self, error)) { + // The Watchman watcher is unusable on this system, we cannot continue + return; + } + + handleWarning(resp); + self.capabilities = resp.capabilities; + + if (self.capabilities.relative_root) { + self.client.command(['watch-project', getWatchRoot()], onWatchProject); + } else { + self.client.command(['watch', getWatchRoot()], onWatch); + } + } + + function onWatchProject(error, resp) { + if (handleError(self, error)) { + return; + } + + handleWarning(resp); + self.watchProjectInfo = { + relativePath: resp.relative_path ? resp.relative_path : '', + root: resp.watch + }; + self.client.command(['clock', getWatchRoot()], onClock); + } + + function onWatch(error, resp) { + if (handleError(self, error)) { + return; + } + + handleWarning(resp); + self.client.command(['clock', getWatchRoot()], onClock); + } + + function onClock(error, resp) { + if (handleError(self, error)) { + return; + } + + handleWarning(resp); + const options = { + fields: ['name', 'exists', 'new'], + since: resp.clock + }; // If the server has the wildmatch capability available it supports + // the recursive **/*.foo style match and we can offload our globs + // to the watchman server. This saves both on data size to be + // communicated back to us and compute for evaluating the globs + // in our node process. + + if (self.capabilities.wildmatch) { + if (self.globs.length === 0) { + if (!self.dot) { + // Make sure we honor the dot option if even we're not using globs. + options.expression = [ + 'match', + '**', + 'wholename', + { + includedotfiles: false + } + ]; + } + } else { + options.expression = ['anyof']; + + for (const i in self.globs) { + options.expression.push([ + 'match', + self.globs[i], + 'wholename', + { + includedotfiles: self.dot + } + ]); + } + } + } + + if (self.capabilities.relative_root) { + options.relative_root = self.watchProjectInfo.relativePath; + } + + self.client.command( + ['subscribe', getWatchRoot(), SUB_NAME, options], + onSubscribe + ); + } + + function onSubscribe(error, resp) { + if (handleError(self, error)) { + return; + } + + handleWarning(resp); + self.emit('ready'); + } + + self.client.capabilityCheck( + { + optional: ['wildmatch', 'relative_root'] + }, + onCapability + ); +}; +/** + * Handles a change event coming from the subscription. + * + * @param {Object} resp + * @private + */ + +WatchmanWatcher.prototype.handleChangeEvent = function (resp) { + _assert().default.equal( + resp.subscription, + SUB_NAME, + 'Invalid subscription event.' + ); + + if (resp.is_fresh_instance) { + this.emit('fresh_instance'); + } + + if (resp.is_fresh_instance) { + this.emit('fresh_instance'); + } + + if (Array.isArray(resp.files)) { + resp.files.forEach(this.handleFileChange, this); + } +}; +/** + * Handles a single change event record. + * + * @param {Object} changeDescriptor + * @private + */ + +WatchmanWatcher.prototype.handleFileChange = function (changeDescriptor) { + const self = this; + let absPath; + let relativePath; + + if (this.capabilities.relative_root) { + relativePath = changeDescriptor.name; + absPath = _path().default.join( + this.watchProjectInfo.root, + this.watchProjectInfo.relativePath, + relativePath + ); + } else { + absPath = _path().default.join(this.root, changeDescriptor.name); + relativePath = changeDescriptor.name; + } + + if ( + !(self.capabilities.wildmatch && !this.hasIgnore) && + !_common.default.isFileIncluded( + this.globs, + this.dot, + this.doIgnore, + relativePath + ) + ) { + return; + } + + if (!changeDescriptor.exists) { + self.emitEvent(DELETE_EVENT, relativePath, self.root); + } else { + fs().lstat(absPath, (error, stat) => { + // Files can be deleted between the event and the lstat call + // the most reliable thing to do here is to ignore the event. + if (error && error.code === 'ENOENT') { + return; + } + + if (handleError(self, error)) { + return; + } + + const eventType = changeDescriptor.new ? ADD_EVENT : CHANGE_EVENT; // Change event on dirs are mostly useless. + + if (!(eventType === CHANGE_EVENT && stat.isDirectory())) { + self.emitEvent(eventType, relativePath, self.root, stat); + } + }); + } +}; +/** + * Dispatches the event. + * + * @param {string} eventType + * @param {string} filepath + * @param {string} root + * @param {fs.Stat} stat + * @private + */ + +WatchmanWatcher.prototype.emitEvent = function ( + eventType, + filepath, + root, + stat +) { + this.emit(eventType, filepath, root, stat); + this.emit(ALL_EVENT, eventType, filepath, root, stat); +}; +/** + * Closes the watcher. + * + */ + +WatchmanWatcher.prototype.close = function () { + this.client.removeAllListeners(); + this.client.end(); + return Promise.resolve(); +}; +/** + * Handles an error and returns true if exists. + * + * @param {WatchmanWatcher} self + * @param {Error} error + * @private + */ + +function handleError(self, error) { + if (error != null) { + self.emit('error', error); + return true; + } else { + return false; + } +} +/** + * Handles a warning in the watchman resp object. + * + * @param {object} resp + * @private + */ + +function handleWarning(resp) { + if ('warning' in resp) { + if (_RecrawlWarning.default.isRecrawlWarningDupe(resp.warning)) { + return true; + } + + console.warn(resp.warning); + return true; + } else { + return false; + } +} |