mirror of https://github.com/webpack/webpack.git
932 lines
24 KiB
JavaScript
932 lines
24 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const resolve = require("enhanced-resolve");
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const asyncLib = require("neo-async");
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const AsyncQueue = require("./util/AsyncQueue");
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const createHash = require("./util/createHash");
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const { join, dirname } = require("./util/fs");
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/** @typedef {import("./WebpackError")} WebpackError */
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/** @typedef {import("./util/fs").InputFileSystem} InputFileSystem */
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const resolveContext = resolve.create({
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resolveToContext: true
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});
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let FS_ACCURACY = 2000;
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const RBDT_RESOLVE = 0;
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const RBDT_RESOLVE_DIRECTORY = 1;
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const RBDT_DIRECTORY = 2;
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const RBDT_FILE = 3;
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const RBDT_DIRECTORY_DEPENDENCIES = 4;
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const RBDT_FILE_DEPENDENCIES = 5;
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/**
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* @typedef {Object} FileSystemInfoEntry
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* @property {number} safeTime
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* @property {number} timestamp
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*/
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/**
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* @typedef {Object} Snapshot
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* @property {number=} startTime
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* @property {Map<string, FileSystemInfoEntry | "error">=} fileTimestamps
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* @property {Map<string, string | "error">=} fileHashes
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* @property {Map<string, FileSystemInfoEntry | "error">=} contextTimestamps
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* @property {Map<string, string | "error">=} contextHashes
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* @property {Map<string, FileSystemInfoEntry | "error">=} missingTimestamps
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* @property {Map<string, string | "error">=} managedItemInfo
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*/
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/* istanbul ignore next */
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const applyMtime = mtime => {
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if (FS_ACCURACY > 1 && mtime % 2 !== 0) FS_ACCURACY = 1;
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else if (FS_ACCURACY > 10 && mtime % 20 !== 0) FS_ACCURACY = 10;
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else if (FS_ACCURACY > 100 && mtime % 200 !== 0) FS_ACCURACY = 100;
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else if (FS_ACCURACY > 1000 && mtime % 2000 !== 0) FS_ACCURACY = 1000;
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};
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const mergeMaps = (a, b) => {
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if (!b || b.size === 0) return a;
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if (!a || a.size === 0) return b;
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const map = new Map(a);
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for (const [key, value] of b) {
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map.set(key, value);
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}
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return map;
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};
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const getManagedItem = (managedPath, path) => {
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let i = managedPath.length;
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let slashes = 1;
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loop: while (i < path.length) {
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switch (path.charCodeAt(i)) {
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case 47: // slash
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case 92: // backslash
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if (--slashes === 0) break loop;
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break;
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case 64: // @
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slashes++;
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break;
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}
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i++;
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}
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// if (path.slice(i + 1, i + 13) === "node_modules")
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if (
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path.charCodeAt(i + 1) === 110 &&
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path.charCodeAt(i + 2) === 111 &&
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path.charCodeAt(i + 3) === 100 &&
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path.charCodeAt(i + 4) === 101 &&
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path.charCodeAt(i + 5) === 95 &&
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path.charCodeAt(i + 6) === 109 &&
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path.charCodeAt(i + 7) === 111 &&
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path.charCodeAt(i + 8) === 100 &&
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path.charCodeAt(i + 9) === 117 &&
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path.charCodeAt(i + 10) === 108 &&
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path.charCodeAt(i + 11) === 101 &&
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path.charCodeAt(i + 12) === 115
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) {
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const c = path.charCodeAt(i + 13);
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if (c === 47 || c === 92) {
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// Managed subpath
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return getManagedItem(path.slice(0, i + 14), path);
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}
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}
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return path.slice(0, i);
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};
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class FileSystemInfo {
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/**
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* @param {InputFileSystem} fs file system
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* @param {Object} options options
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* @param {Iterable<string>=} options.managedPaths paths that are only managed by a package manager
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*/
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constructor(fs, { managedPaths = [] } = {}) {
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this.fs = fs;
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/** @type {Map<string, FileSystemInfoEntry | null>} */
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this._fileTimestamps = new Map();
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/** @type {Map<string, string>} */
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this._fileHashes = new Map();
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/** @type {Map<string, FileSystemInfoEntry | null>} */
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this._contextTimestamps = new Map();
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/** @type {Map<string, string>} */
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this._contextHashes = new Map();
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/** @type {Map<string, string>} */
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this._managedItems = new Map();
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this.fileTimestampQueue = new AsyncQueue({
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name: "file timestamp",
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parallelism: 30,
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processor: this._readFileTimestamp.bind(this)
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});
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this.fileHashQueue = new AsyncQueue({
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name: "file hash",
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parallelism: 10,
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processor: this._readFileHash.bind(this)
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});
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this.contextTimestampQueue = new AsyncQueue({
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name: "context timestamp",
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parallelism: 2,
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processor: this._readContextTimestamp.bind(this)
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});
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this.contextHashQueue = new AsyncQueue({
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name: "context hash",
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parallelism: 2,
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processor: this._readContextHash.bind(this)
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});
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this.managedItemQueue = new AsyncQueue({
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name: "managed item info",
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parallelism: 10,
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processor: this._getManagedItemInfo.bind(this)
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});
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this.managedPaths = Array.from(managedPaths);
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this.managedPathsWithSlash = this.managedPaths.map(p =>
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join(fs, p, "_").slice(0, -1)
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);
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}
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/**
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* @param {Map<string, FileSystemInfoEntry | null>} map timestamps
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* @returns {void}
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*/
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addFileTimestamps(map) {
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for (const [path, ts] of map) {
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this._fileTimestamps.set(path, ts);
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}
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}
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/**
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* @param {Map<string, FileSystemInfoEntry | null>} map timestamps
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* @returns {void}
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*/
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addContextTimestamps(map) {
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for (const [path, ts] of map) {
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this._contextTimestamps.set(path, ts);
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}
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}
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/**
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* @param {string} path file path
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* @param {function(WebpackError=, FileSystemInfoEntry=): void} callback callback function
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* @returns {void}
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*/
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getFileTimestamp(path, callback) {
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const cache = this._fileTimestamps.get(path);
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if (cache !== undefined) return callback(null, cache);
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this.fileTimestampQueue.add(path, callback);
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}
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/**
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* @param {string} path context path
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* @param {function(WebpackError=, FileSystemInfoEntry=): void} callback callback function
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* @returns {void}
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*/
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getContextTimestamp(path, callback) {
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const cache = this._contextTimestamps.get(path);
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if (cache !== undefined) return callback(null, cache);
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this.contextTimestampQueue.add(path, callback);
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}
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/**
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* @param {string} path file path
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* @param {function(WebpackError=, string=): void} callback callback function
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* @returns {void}
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*/
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getFileHash(path, callback) {
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const cache = this._fileHashes.get(path);
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if (cache !== undefined) return callback(null, cache);
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this.fileHashQueue.add(path, callback);
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}
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/**
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* @param {string} path context path
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* @param {function(WebpackError=, string=): void} callback callback function
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* @returns {void}
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*/
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getContextHash(path, callback) {
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const cache = this._contextHashes.get(path);
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if (cache !== undefined) return callback(null, cache);
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this.contextHashQueue.add(path, callback);
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}
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resolveBuildDependencies(context, deps, callback) {
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const files = new Set();
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const directories = new Set();
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const missing = new Set();
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/** @type {asyncLib.QueueObject<{type: number, path: string, context?: string }, Error>} */
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const queue = asyncLib.queue(({ type, context, path }, callback) => {
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switch (type) {
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case RBDT_RESOLVE: {
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const isDirectory = /[\\/]$/.test(path);
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const isDeps = /^deps:/.test(path);
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if (isDeps) path = path.slice(5);
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if (isDirectory) {
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resolveContext(
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context,
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path.replace(/[\\/]$/, ""),
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(err, result) => {
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if (err) return callback(err);
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queue.push({
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type: isDeps ? RBDT_DIRECTORY_DEPENDENCIES : RBDT_DIRECTORY,
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path: result
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});
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callback();
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}
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);
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} else {
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resolve(context, path, (err, result) => {
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if (err) return callback(err);
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queue.push({
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type: isDeps ? RBDT_FILE_DEPENDENCIES : RBDT_FILE,
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path: result
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});
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callback();
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});
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}
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break;
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}
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case RBDT_RESOLVE_DIRECTORY: {
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resolveContext(context, path, (err, result) => {
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if (err) return callback(err);
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queue.push({
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type: RBDT_DIRECTORY,
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path: result
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});
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callback();
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});
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break;
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}
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case RBDT_FILE: {
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if (files.has(path)) {
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callback();
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break;
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}
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this.fs.realpath(path, (err, realPath) => {
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if (err) return callback(err);
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if (!files.has(realPath)) {
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files.add(realPath);
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queue.push({
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type: RBDT_FILE_DEPENDENCIES,
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path: realPath
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});
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}
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callback();
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});
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break;
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}
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case RBDT_DIRECTORY: {
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if (directories.has(path)) {
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callback();
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break;
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}
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this.fs.realpath(path, (err, realPath) => {
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if (err) return callback(err);
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if (!directories.has(realPath)) {
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directories.add(realPath);
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queue.push({
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type: RBDT_DIRECTORY_DEPENDENCIES,
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path: realPath
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});
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}
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callback();
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});
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break;
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}
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case RBDT_FILE_DEPENDENCIES: {
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/** @type {NodeModule} */
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const module = require.cache[path];
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if (module && Array.isArray(module.children)) {
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for (const child of module.children) {
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if (child.id) {
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queue.push({
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type: RBDT_FILE,
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path: child.id
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});
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}
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}
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} else {
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// Unable to get dependencies from module system
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// This may be because of an incomplete require.cache implementation like in jest
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// Assume requires stay in directory and add the whole directory
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const directory = dirname(this.fs, path);
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queue.push({
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type: RBDT_DIRECTORY,
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path: directory
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});
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}
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callback();
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break;
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}
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case RBDT_DIRECTORY_DEPENDENCIES: {
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const match = /(^.+[\\/]node_modules[\\/](?:@[^\\/]+[\\/])?[^\\/]+)/.exec(
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path
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);
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const packagePath = match ? match[1] : path;
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const packageJson = join(this.fs, packagePath, "package.json");
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this.fs.readFile(packageJson, (err, content) => {
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if (err) {
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if (err.code === "ENOENT") {
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const parent = dirname(this.fs, packagePath);
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if (parent !== packagePath) {
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queue.push({
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type: RBDT_DIRECTORY_DEPENDENCIES,
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path: parent
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});
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}
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callback();
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return;
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}
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return callback(err);
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}
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let packageData;
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try {
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packageData = JSON.parse(content.toString("utf-8"));
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} catch (e) {
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return callback(e);
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}
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const depsObject = packageData.dependencies;
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if (typeof depsObject === "object" && depsObject) {
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for (const dep of Object.keys(depsObject)) {
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queue.push({
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type: RBDT_RESOLVE_DIRECTORY,
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context: packagePath,
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path: dep
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});
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}
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}
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callback();
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});
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break;
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}
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}
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}, 50);
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queue.drain = () => {
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callback(null, { files, directories, missing });
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};
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queue.error = err => {
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callback(err);
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callback = () => {};
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};
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for (const dep of deps) {
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queue.push({
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type: RBDT_RESOLVE,
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context,
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path: dep
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});
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}
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}
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/**
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*
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* @param {number} startTime when processing the files has started
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* @param {Iterable<string>} files all files
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* @param {Iterable<string>} directories all directories
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* @param {Iterable<string>} missing all missing files or directories
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* @param {Object} options options object (for future extensions)
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* @param {function(WebpackError=, Snapshot=): void} callback callback function
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* @returns {void}
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*/
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createSnapshot(startTime, files, directories, missing, options, callback) {
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/** @type {Map<string, FileSystemInfoEntry | "error">} */
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const fileTimestamps = new Map();
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/** @type {Map<string, string | "error">} */
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const fileHashes = new Map();
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/** @type {Map<string, FileSystemInfoEntry | "error">} */
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const contextTimestamps = new Map();
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/** @type {Map<string, string | "error">} */
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const contextHashes = new Map();
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/** @type {Map<string, FileSystemInfoEntry | "error">} */
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const missingTimestamps = new Map();
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/** @type {Map<string, string | "error">} */
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const managedItemInfo = new Map();
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const managedItems = new Set();
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let jobs = 1;
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const jobDone = () => {
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if (--jobs === 0) {
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const snapshot = {};
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if (startTime) snapshot.startTime = startTime;
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if (fileTimestamps.size !== 0) snapshot.fileTimestamps = fileTimestamps;
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if (fileHashes.size !== 0) snapshot.fileHashes = fileHashes;
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if (contextTimestamps.size !== 0)
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snapshot.contextTimestamps = contextTimestamps;
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if (contextHashes.size !== 0) snapshot.contextHashes = contextHashes;
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if (missingTimestamps.size !== 0)
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snapshot.missingTimestamps = missingTimestamps;
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if (managedItemInfo.size !== 0)
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snapshot.managedItemInfo = managedItemInfo;
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callback(null, snapshot);
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}
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};
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if (files) {
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if (options && options.hash) {
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files: for (const path of files) {
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for (const managedPath of this.managedPathsWithSlash) {
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if (path.startsWith(managedPath)) {
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managedItems.add(getManagedItem(managedPath, path));
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continue files;
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}
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}
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const cache = this._fileHashes.get(path);
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if (cache !== undefined) {
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fileHashes.set(path, cache);
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} else {
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jobs++;
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this.fileHashQueue.add(path, (err, entry) => {
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if (err) {
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fileHashes.set(path, "error");
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} else {
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fileHashes.set(path, entry);
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}
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jobDone();
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});
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}
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}
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} else {
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files: for (const path of files) {
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for (const managedPath of this.managedPathsWithSlash) {
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if (path.startsWith(managedPath)) {
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managedItems.add(getManagedItem(managedPath, path));
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continue files;
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}
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}
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const cache = this._fileTimestamps.get(path);
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if (cache !== undefined) {
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fileTimestamps.set(path, cache);
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} else {
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jobs++;
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this.fileTimestampQueue.add(path, (err, entry) => {
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if (err) {
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fileTimestamps.set(path, "error");
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} else {
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fileTimestamps.set(path, entry);
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}
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jobDone();
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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 (directories) {
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if (options && options.hash) {
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directories: for (const path of directories) {
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for (const managedPath of this.managedPathsWithSlash) {
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if (path.startsWith(managedPath)) {
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managedItems.add(getManagedItem(managedPath, path));
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continue directories;
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}
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}
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const cache = this._contextHashes.get(path);
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if (cache !== undefined) {
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contextHashes.set(path, cache);
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} else {
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jobs++;
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this.contextHashQueue.add(path, (err, entry) => {
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if (err) {
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contextHashes.set(path, "error");
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} else {
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contextHashes.set(path, entry);
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}
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jobDone();
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});
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}
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}
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} else {
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directories: for (const path of directories) {
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for (const managedPath of this.managedPathsWithSlash) {
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if (path.startsWith(managedPath)) {
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managedItems.add(getManagedItem(managedPath, path));
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continue directories;
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}
|
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}
|
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contextTimestamps.set(path, "error");
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|
// TODO: getContextTimestamp is not implemented yet
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|
}
|
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}
|
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}
|
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if (missing) {
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missing: for (const path of missing) {
|
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for (const managedPath of this.managedPathsWithSlash) {
|
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if (path.startsWith(managedPath)) {
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managedItems.add(getManagedItem(managedPath, path));
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continue missing;
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}
|
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}
|
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const cache = this._fileTimestamps.get(path);
|
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if (cache !== undefined) {
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missingTimestamps.set(path, cache);
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} else {
|
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jobs++;
|
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this.fileTimestampQueue.add(path, (err, entry) => {
|
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if (err) {
|
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missingTimestamps.set(path, "error");
|
|
} else {
|
|
missingTimestamps.set(path, entry);
|
|
}
|
|
jobDone();
|
|
});
|
|
}
|
|
}
|
|
}
|
|
for (const path of managedItems) {
|
|
const cache = this._managedItems.get(path);
|
|
if (cache !== undefined) {
|
|
managedItemInfo.set(path, cache);
|
|
} else {
|
|
jobs++;
|
|
this.managedItemQueue.add(path, (err, entry) => {
|
|
if (err) {
|
|
managedItemInfo.set(path, "error");
|
|
} else {
|
|
managedItemInfo.set(path, entry);
|
|
}
|
|
jobDone();
|
|
});
|
|
}
|
|
}
|
|
jobDone();
|
|
}
|
|
|
|
/**
|
|
* @param {Snapshot} snapshot1 a snapshot
|
|
* @param {Snapshot} snapshot2 a snapshot
|
|
* @returns {Snapshot} merged snapshot
|
|
*/
|
|
mergeSnapshots(snapshot1, snapshot2) {
|
|
/** @type {Snapshot} */
|
|
const snapshot = {};
|
|
if (snapshot1.startTime && snapshot2.startTime)
|
|
snapshot.startTime = Math.min(snapshot1.startTime, snapshot2.startTime);
|
|
else if (snapshot2.startTime) snapshot.startTime = snapshot2.startTime;
|
|
else if (snapshot1.startTime) snapshot.startTime = snapshot1.startTime;
|
|
if (snapshot1.fileTimestamps || snapshot2.fileTimestamps) {
|
|
snapshot.fileTimestamps = mergeMaps(
|
|
snapshot1.fileTimestamps,
|
|
snapshot2.fileTimestamps
|
|
);
|
|
}
|
|
if (snapshot1.fileHashes || snapshot2.fileHashes) {
|
|
snapshot.fileHashes = mergeMaps(
|
|
snapshot1.fileHashes,
|
|
snapshot2.fileHashes
|
|
);
|
|
}
|
|
if (snapshot1.contextTimestamps || snapshot2.contextTimestamps) {
|
|
snapshot.contextTimestamps = mergeMaps(
|
|
snapshot1.contextTimestamps,
|
|
snapshot2.contextTimestamps
|
|
);
|
|
}
|
|
if (snapshot1.contextHashes || snapshot2.contextHashes) {
|
|
snapshot.contextHashes = mergeMaps(
|
|
snapshot1.contextHashes,
|
|
snapshot2.contextHashes
|
|
);
|
|
}
|
|
if (snapshot1.missingTimestamps || snapshot2.missingTimestamps) {
|
|
snapshot.missingTimestamps = mergeMaps(
|
|
snapshot1.missingTimestamps,
|
|
snapshot2.missingTimestamps
|
|
);
|
|
}
|
|
if (snapshot1.managedItemInfo || snapshot2.managedItemInfo) {
|
|
snapshot.managedItemInfo = mergeMaps(
|
|
snapshot1.managedItemInfo,
|
|
snapshot2.managedItemInfo
|
|
);
|
|
}
|
|
return snapshot;
|
|
}
|
|
|
|
/**
|
|
* @param {Snapshot} snapshot the snapshot made
|
|
* @param {function(WebpackError=, boolean=): void} callback callback function
|
|
* @returns {void}
|
|
*/
|
|
checkSnapshotValid(snapshot, callback) {
|
|
const {
|
|
startTime,
|
|
fileTimestamps,
|
|
fileHashes,
|
|
contextTimestamps,
|
|
contextHashes,
|
|
missingTimestamps,
|
|
managedItemInfo
|
|
} = snapshot;
|
|
let jobs = 1;
|
|
const jobDone = () => {
|
|
if (--jobs === 0) {
|
|
callback(null, true);
|
|
}
|
|
};
|
|
const invalid = () => {
|
|
if (jobs > 0) {
|
|
jobs = NaN;
|
|
callback(null, false);
|
|
}
|
|
};
|
|
const checkHash = (current, snap) => {
|
|
if (snap === "error") {
|
|
// If there was an error while snapshotting (i. e. EBUSY)
|
|
// we can't compare further data and assume it's invalid
|
|
return false;
|
|
}
|
|
return current === snap;
|
|
};
|
|
/**
|
|
* @param {FileSystemInfoEntry} current current entry
|
|
* @param {FileSystemInfoEntry | "error"} snap entry from snapshot
|
|
* @returns {boolean} true, if ok
|
|
*/
|
|
const checkExistance = (current, snap) => {
|
|
if (snap === "error") {
|
|
// If there was an error while snapshotting (i. e. EBUSY)
|
|
// we can't compare further data and assume it's invalid
|
|
return false;
|
|
}
|
|
return !current === !snap;
|
|
};
|
|
/**
|
|
* @param {FileSystemInfoEntry} current current entry
|
|
* @param {FileSystemInfoEntry | "error"} snap entry from snapshot
|
|
* @returns {boolean} true, if ok
|
|
*/
|
|
const checkFile = (current, snap) => {
|
|
if (snap === "error") {
|
|
// If there was an error while snapshotting (i. e. EBUSY)
|
|
// we can't compare further data and assume it's invalid
|
|
return false;
|
|
}
|
|
if (current && current.safeTime > startTime) {
|
|
// If a change happened after starting reading the item
|
|
// this may no longer be valid
|
|
return false;
|
|
}
|
|
if (!current !== !snap) {
|
|
// If existance of item differs
|
|
// it's invalid
|
|
return false;
|
|
}
|
|
if (current) {
|
|
// For existing items only
|
|
if (
|
|
snap.timestamp !== undefined &&
|
|
current.timestamp !== snap.timestamp
|
|
) {
|
|
// If we have a timestamp (it was a file or symlink) and it differs from current timestamp
|
|
// it's invalid
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
};
|
|
if (fileTimestamps) {
|
|
for (const [path, ts] of fileTimestamps) {
|
|
const cache = this._fileTimestamps.get(path);
|
|
if (cache !== undefined) {
|
|
if (!checkFile(cache, ts)) {
|
|
invalid();
|
|
}
|
|
} else {
|
|
jobs++;
|
|
this.fileTimestampQueue.add(path, (err, entry) => {
|
|
if (err) return invalid();
|
|
if (!checkFile(entry, ts)) {
|
|
invalid();
|
|
} else {
|
|
jobDone();
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
if (fileHashes) {
|
|
for (const [path, hash] of fileHashes) {
|
|
const cache = this._fileHashes.get(path);
|
|
if (cache !== undefined) {
|
|
if (!checkHash(cache, hash)) {
|
|
invalid();
|
|
}
|
|
} else {
|
|
jobs++;
|
|
this.fileHashQueue.add(path, (err, entry) => {
|
|
if (err) return invalid();
|
|
if (!checkHash(entry, hash)) {
|
|
invalid();
|
|
} else {
|
|
jobDone();
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
if (contextTimestamps && contextTimestamps.size > 0) {
|
|
// TODO: getContextTimestamp is not implemented yet
|
|
invalid();
|
|
}
|
|
if (contextHashes) {
|
|
for (const [path, hash] of contextHashes) {
|
|
const cache = this._contextHashes.get(path);
|
|
if (cache !== undefined) {
|
|
if (!checkHash(cache, hash)) {
|
|
invalid();
|
|
}
|
|
} else {
|
|
jobs++;
|
|
this.contextHashQueue.add(path, (err, entry) => {
|
|
if (err) return invalid();
|
|
if (!checkHash(entry, hash)) {
|
|
invalid();
|
|
} else {
|
|
jobDone();
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
if (missingTimestamps) {
|
|
for (const [path, ts] of missingTimestamps) {
|
|
const cache = this._fileTimestamps.get(path);
|
|
if (cache !== undefined) {
|
|
if (!checkExistance(cache, ts)) {
|
|
invalid();
|
|
}
|
|
} else {
|
|
jobs++;
|
|
this.fileTimestampQueue.add(path, (err, entry) => {
|
|
if (err) return invalid();
|
|
if (!checkExistance(entry, ts)) {
|
|
invalid();
|
|
} else {
|
|
jobDone();
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
if (managedItemInfo) {
|
|
for (const [path, info] of managedItemInfo) {
|
|
const cache = this._managedItems.get(path);
|
|
if (cache !== undefined) {
|
|
if (!checkHash(cache, info)) {
|
|
invalid();
|
|
}
|
|
} else {
|
|
jobs++;
|
|
this.managedItemQueue.add(path, (err, entry) => {
|
|
if (err) return invalid();
|
|
if (!checkHash(entry, info)) {
|
|
invalid();
|
|
} else {
|
|
jobDone();
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
jobDone();
|
|
}
|
|
|
|
_readFileTimestamp(path, callback) {
|
|
this.fs.stat(path, (err, stat) => {
|
|
if (err) {
|
|
if (err.code === "ENOENT") {
|
|
this._fileTimestamps.set(path, null);
|
|
return callback(null, null);
|
|
}
|
|
return callback(err);
|
|
}
|
|
|
|
const mtime = +stat.mtime;
|
|
|
|
if (mtime) applyMtime(mtime);
|
|
|
|
const ts = {
|
|
safeTime: mtime ? mtime + FS_ACCURACY : Infinity,
|
|
timestamp: stat.isDirectory() ? undefined : mtime
|
|
};
|
|
|
|
this._fileTimestamps.set(path, ts);
|
|
|
|
callback(null, ts);
|
|
});
|
|
}
|
|
|
|
_readFileHash(path, callback) {
|
|
this.fs.readFile(path, (err, content) => {
|
|
if (err) {
|
|
if (err.code === "ENOENT") {
|
|
this._fileHashes.set(path, null);
|
|
return callback(null, null);
|
|
}
|
|
return callback(err);
|
|
}
|
|
|
|
const hash = createHash("md4");
|
|
|
|
hash.update(content);
|
|
|
|
const digest = /** @type {string} */ (hash.digest("hex"));
|
|
|
|
this._fileHashes.set(path, digest);
|
|
|
|
callback(null, digest);
|
|
});
|
|
}
|
|
|
|
_readContextTimestamp(path, callback) {
|
|
// TODO read whole folder
|
|
this._contextTimestamps.set(path, null);
|
|
callback(null, null);
|
|
}
|
|
|
|
_readContextHash(path, callback) {
|
|
this.fs.readdir(path, (err, files) => {
|
|
if (err) {
|
|
if (err.code === "ENOENT") {
|
|
this._contextHashes.set(path, null);
|
|
return callback(null, null);
|
|
}
|
|
return callback(err);
|
|
}
|
|
files = files
|
|
.map(file => file.normalize("NFC"))
|
|
.filter(file => !/^\./.test(file))
|
|
.sort();
|
|
asyncLib.map(
|
|
files,
|
|
(file, callback) => {
|
|
const child = join(this.fs, path, file);
|
|
this.fs.stat(child, (err, stat) => {
|
|
if (err) return callback(err);
|
|
|
|
if (stat.isFile()) {
|
|
return this.getFileHash(child, callback);
|
|
}
|
|
if (stat.isDirectory()) {
|
|
this.contextHashQueue.increaseParallelism();
|
|
this.getContextHash(child, (err, hash) => {
|
|
this.contextHashQueue.decreaseParallelism();
|
|
callback(err, hash || "");
|
|
});
|
|
return;
|
|
}
|
|
callback(null, "");
|
|
});
|
|
},
|
|
(err, fileHashes) => {
|
|
const hash = createHash("md4");
|
|
|
|
for (const file of files) hash.update(file);
|
|
for (const h of fileHashes) hash.update(h);
|
|
|
|
const digest = /** @type {string} */ (hash.digest("hex"));
|
|
|
|
this._contextHashes.set(path, digest);
|
|
|
|
callback(null, digest);
|
|
}
|
|
);
|
|
});
|
|
}
|
|
|
|
_getManagedItemInfo(path, callback) {
|
|
const packageJsonPath = join(this.fs, path, "package.json");
|
|
this.fs.readFile(packageJsonPath, (err, content) => {
|
|
if (err) return callback(err);
|
|
let data;
|
|
try {
|
|
data = JSON.parse(content.toString("utf-8"));
|
|
} catch (e) {
|
|
return callback(e);
|
|
}
|
|
const info = `${data.name || ""}@${data.version || ""}`;
|
|
callback(null, info);
|
|
});
|
|
}
|
|
|
|
getDeprecatedFileTimestamps() {
|
|
const map = new Map();
|
|
for (const [path, info] of this._fileTimestamps) {
|
|
if (info) map.set(path, info.safeTime);
|
|
}
|
|
return map;
|
|
}
|
|
|
|
getDeprecatedContextTimestamps() {
|
|
const map = new Map();
|
|
for (const [path, info] of this._contextTimestamps) {
|
|
if (info) map.set(path, info.safeTime);
|
|
}
|
|
return map;
|
|
}
|
|
}
|
|
|
|
module.exports = FileSystemInfo;
|