386 lines
12 KiB
JavaScript
386 lines
12 KiB
JavaScript
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'use strict';
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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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var _constants = _interopRequireDefault(require('../constants'));
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var fastPath = _interopRequireWildcard(require('../lib/fast_path'));
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var _normalizePathSep = _interopRequireDefault(
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require('../lib/normalizePathSep')
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);
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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 watchmanURL = 'https://facebook.github.io/watchman/docs/troubleshooting';
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function WatchmanError(error) {
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error.message =
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`Watchman error: ${error.message.trim()}. Make sure watchman ` +
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`is running for this project. See ${watchmanURL}.`;
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return error;
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}
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/**
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* Wrap watchman capabilityCheck method as a promise.
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*
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* @param client watchman client
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* @param caps capabilities to verify
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* @returns a promise resolving to a list of verified capabilities
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*/
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async function capabilityCheck(client, caps) {
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return new Promise((resolve, reject) => {
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client.capabilityCheck(
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// @ts-expect-error: incorrectly typed
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caps,
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(error, response) => {
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if (error) {
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reject(error);
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} else {
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resolve(response);
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}
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}
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);
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});
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}
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module.exports = async function watchmanCrawl(options) {
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const fields = ['name', 'exists', 'mtime_ms', 'size'];
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const {data, extensions, ignore, rootDir, roots} = options;
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const defaultWatchExpression = ['allof', ['type', 'f']];
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const clocks = data.clocks;
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const client = new (_fbWatchman().default.Client)(); // https://facebook.github.io/watchman/docs/capabilities.html
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// Check adds about ~28ms
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const capabilities = await capabilityCheck(client, {
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// If a required capability is missing then an error will be thrown,
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// we don't need this assertion, so using optional instead.
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optional: ['suffix-set']
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});
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if (
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capabilities !== null &&
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capabilities !== void 0 &&
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capabilities.capabilities['suffix-set']
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) {
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// If available, use the optimized `suffix-set` operation:
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// https://facebook.github.io/watchman/docs/expr/suffix.html#suffix-set
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defaultWatchExpression.push(['suffix', extensions]);
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} else {
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// Otherwise use the older and less optimal suffix tuple array
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defaultWatchExpression.push([
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'anyof',
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...extensions.map(extension => ['suffix', extension])
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]);
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}
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let clientError;
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client.on('error', error => (clientError = WatchmanError(error)));
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const cmd = (...args) =>
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new Promise((resolve, reject) =>
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client.command(args, (error, result) =>
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error ? reject(WatchmanError(error)) : resolve(result)
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)
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);
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if (options.computeSha1) {
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const {capabilities} = await cmd('list-capabilities');
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if (capabilities.indexOf('field-content.sha1hex') !== -1) {
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fields.push('content.sha1hex');
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}
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}
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async function getWatchmanRoots(roots) {
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const watchmanRoots = new Map();
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await Promise.all(
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roots.map(async root => {
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const response = await cmd('watch-project', root);
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const existing = watchmanRoots.get(response.watch); // A root can only be filtered if it was never seen with a
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// relative_path before.
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const canBeFiltered = !existing || existing.length > 0;
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if (canBeFiltered) {
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if (response.relative_path) {
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watchmanRoots.set(
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response.watch,
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(existing || []).concat(response.relative_path)
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);
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} else {
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// Make the filter directories an empty array to signal that this
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// root was already seen and needs to be watched for all files or
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// directories.
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watchmanRoots.set(response.watch, []);
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}
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}
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})
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);
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return watchmanRoots;
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}
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async function queryWatchmanForDirs(rootProjectDirMappings) {
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const results = new Map();
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let isFresh = false;
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await Promise.all(
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Array.from(rootProjectDirMappings).map(
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async ([root, directoryFilters]) => {
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var _since$scm;
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const expression = Array.from(defaultWatchExpression);
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const glob = [];
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if (directoryFilters.length > 0) {
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expression.push([
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'anyof',
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...directoryFilters.map(dir => ['dirname', dir])
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]);
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for (const directory of directoryFilters) {
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for (const extension of extensions) {
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glob.push(`${directory}/**/*.${extension}`);
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}
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}
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} else {
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for (const extension of extensions) {
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glob.push(`**/*.${extension}`);
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}
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} // Jest is only going to store one type of clock; a string that
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// represents a local clock. However, the Watchman crawler supports
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// a second type of clock that can be written by automation outside of
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// Jest, called an "scm query", which fetches changed files based on
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// source control mergebases. The reason this is necessary is because
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// local clocks are not portable across systems, but scm queries are.
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// By using scm queries, we can create the haste map on a different
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// system and import it, transforming the clock into a local clock.
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const since = clocks.get(fastPath.relative(rootDir, root));
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const query =
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since !== undefined // Use the `since` generator if we have a clock available
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? {
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expression,
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fields,
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since
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} // Otherwise use the `glob` filter
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: {
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expression,
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fields,
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glob,
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glob_includedotfiles: true
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};
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const response = await cmd('query', root, query);
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if ('warning' in response) {
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console.warn('watchman warning: ', response.warning);
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} // When a source-control query is used, we ignore the "is fresh"
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// response from Watchman because it will be true despite the query
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// being incremental.
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const isSourceControlQuery =
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typeof since !== 'string' &&
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(since === null || since === void 0
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? void 0
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: (_since$scm = since.scm) === null || _since$scm === void 0
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? void 0
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: _since$scm['mergebase-with']) !== undefined;
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if (!isSourceControlQuery) {
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isFresh = isFresh || response.is_fresh_instance;
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}
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results.set(root, response);
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}
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)
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);
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return {
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isFresh,
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results
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};
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}
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let files = data.files;
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let removedFiles = new Map();
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const changedFiles = new Map();
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let results;
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let isFresh = false;
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try {
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const watchmanRoots = await getWatchmanRoots(roots);
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const watchmanFileResults = await queryWatchmanForDirs(watchmanRoots); // Reset the file map if watchman was restarted and sends us a list of
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// files.
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if (watchmanFileResults.isFresh) {
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files = new Map();
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removedFiles = new Map(data.files);
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isFresh = true;
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}
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results = watchmanFileResults.results;
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} finally {
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client.end();
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}
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if (clientError) {
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throw clientError;
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}
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for (const [watchRoot, response] of results) {
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const fsRoot = (0, _normalizePathSep.default)(watchRoot);
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const relativeFsRoot = fastPath.relative(rootDir, fsRoot);
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clocks.set(
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relativeFsRoot, // Ensure we persist only the local clock.
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typeof response.clock === 'string' ? response.clock : response.clock.clock
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);
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for (const fileData of response.files) {
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const filePath =
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fsRoot + path().sep + (0, _normalizePathSep.default)(fileData.name);
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const relativeFilePath = fastPath.relative(rootDir, filePath);
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const existingFileData = data.files.get(relativeFilePath); // If watchman is fresh, the removed files map starts with all files
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// and we remove them as we verify they still exist.
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if (isFresh && existingFileData && fileData.exists) {
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removedFiles.delete(relativeFilePath);
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}
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if (!fileData.exists) {
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// No need to act on files that do not exist and were not tracked.
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if (existingFileData) {
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files.delete(relativeFilePath); // If watchman is not fresh, we will know what specific files were
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// deleted since we last ran and can track only those files.
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if (!isFresh) {
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removedFiles.set(relativeFilePath, existingFileData);
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}
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}
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} else if (!ignore(filePath)) {
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const mtime =
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typeof fileData.mtime_ms === 'number'
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? fileData.mtime_ms
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: fileData.mtime_ms.toNumber();
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const size = fileData.size;
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let sha1hex = fileData['content.sha1hex'];
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if (typeof sha1hex !== 'string' || sha1hex.length !== 40) {
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sha1hex = undefined;
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}
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let nextData;
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if (
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existingFileData &&
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existingFileData[_constants.default.MTIME] === mtime
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) {
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nextData = existingFileData;
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} else if (
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existingFileData &&
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sha1hex &&
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existingFileData[_constants.default.SHA1] === sha1hex
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) {
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nextData = [
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existingFileData[0],
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mtime,
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existingFileData[2],
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existingFileData[3],
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existingFileData[4],
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existingFileData[5]
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];
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} else {
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var _sha1hex;
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// See ../constants.ts
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nextData = [
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'',
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mtime,
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size,
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0,
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'',
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(_sha1hex = sha1hex) !== null && _sha1hex !== void 0
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? _sha1hex
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: null
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];
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}
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files.set(relativeFilePath, nextData);
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changedFiles.set(relativeFilePath, nextData);
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}
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}
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}
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data.files = files;
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return {
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changedFiles: isFresh ? undefined : changedFiles,
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hasteMap: data,
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removedFiles
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};
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};
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