1 | "use strict";
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2 | /**
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3 | * @license
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4 | * Copyright Google LLC All Rights Reserved.
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5 | *
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6 | * Use of this source code is governed by an MIT-style license that can be
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7 | * found in the LICENSE file at https://angular.io/license
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8 | */
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9 | var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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10 | if (k2 === undefined) k2 = k;
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11 | Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
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12 | }) : (function(o, m, k, k2) {
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13 | if (k2 === undefined) k2 = k;
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14 | o[k2] = m[k];
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15 | }));
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16 | var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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17 | Object.defineProperty(o, "default", { enumerable: true, value: v });
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18 | }) : function(o, v) {
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19 | o["default"] = v;
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20 | });
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21 | var __importStar = (this && this.__importStar) || function (mod) {
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22 | if (mod && mod.__esModule) return mod;
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23 | var result = {};
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24 | if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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25 | __setModuleDefault(result, mod);
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26 | return result;
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27 | };
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28 | Object.defineProperty(exports, "__esModule", { value: true });
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29 | exports.WebpackResourceLoader = void 0;
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30 | const crypto_1 = require("crypto");
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31 | const path = __importStar(require("path"));
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32 | const vm = __importStar(require("vm"));
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33 | const paths_1 = require("./ivy/paths");
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34 | const inline_resource_1 = require("./loaders/inline-resource");
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35 | class WebpackResourceLoader {
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36 | constructor(shouldCache) {
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37 | this._fileDependencies = new Map();
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38 | this._reverseDependencies = new Map();
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39 | this.modifiedResources = new Set();
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40 | this.outputPathCounter = 1;
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41 | this.inlineDataLoaderPath = inline_resource_1.InlineAngularResourceLoaderPath;
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42 | if (shouldCache) {
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43 | this.fileCache = new Map();
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44 | this.assetCache = new Map();
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45 | }
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46 | }
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47 | update(parentCompilation, changedFiles) {
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48 | var _a, _b, _c, _d, _e;
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49 | this._parentCompilation = parentCompilation;
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50 | // Update resource cache and modified resources
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51 | this.modifiedResources.clear();
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52 | if (changedFiles) {
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53 | for (const changedFile of changedFiles) {
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54 | const changedFileNormalized = paths_1.normalizePath(changedFile);
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55 | (_a = this.assetCache) === null || _a === void 0 ? void 0 : _a.delete(changedFileNormalized);
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56 | for (const affectedResource of this.getAffectedResources(changedFile)) {
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57 | const affectedResourceNormalized = paths_1.normalizePath(affectedResource);
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58 | (_b = this.fileCache) === null || _b === void 0 ? void 0 : _b.delete(affectedResourceNormalized);
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59 | this.modifiedResources.add(affectedResource);
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60 | for (const effectedDependencies of this.getResourceDependencies(affectedResourceNormalized)) {
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61 | (_c = this.assetCache) === null || _c === void 0 ? void 0 : _c.delete(paths_1.normalizePath(effectedDependencies));
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62 | }
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63 | }
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64 | }
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65 | }
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66 | else {
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67 | (_d = this.fileCache) === null || _d === void 0 ? void 0 : _d.clear();
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68 | (_e = this.assetCache) === null || _e === void 0 ? void 0 : _e.clear();
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69 | }
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70 | // Re-emit all assets for un-effected files
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71 | if (this.assetCache) {
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72 | for (const [, { name, source, info }] of this.assetCache) {
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73 | this._parentCompilation.emitAsset(name, source, info);
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74 | }
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75 | }
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76 | }
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77 | clearParentCompilation() {
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78 | this._parentCompilation = undefined;
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79 | }
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80 | getModifiedResourceFiles() {
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81 | return this.modifiedResources;
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82 | }
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83 | getResourceDependencies(filePath) {
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84 | return this._fileDependencies.get(filePath) || [];
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85 | }
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86 | getAffectedResources(file) {
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87 | return this._reverseDependencies.get(file) || [];
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88 | }
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89 | setAffectedResources(file, resources) {
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90 | this._reverseDependencies.set(file, new Set(resources));
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91 | }
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92 | async _compile(filePath, data, mimeType, fileExtension, resourceType, containingFile) {
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93 | if (!this._parentCompilation) {
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94 | throw new Error('WebpackResourceLoader cannot be used without parentCompilation');
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95 | }
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96 | // Create a special URL for reading the resource from memory
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97 | const entry = filePath ||
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98 | (resourceType
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99 | ? `${containingFile}-${this.outputPathCounter}.${fileExtension}!=!${this.inlineDataLoaderPath}!${containingFile}`
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100 | : // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
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101 | `angular-resource:${resourceType},${crypto_1.createHash('md5').update(data).digest('hex')}`);
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102 | if (!entry) {
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103 | throw new Error(`"filePath" or "data" must be specified.`);
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104 | }
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105 | // Simple sanity check.
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106 | if (filePath === null || filePath === void 0 ? void 0 : filePath.match(/\.[jt]s$/)) {
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107 | throw new Error(`Cannot use a JavaScript or TypeScript file (${filePath}) in a component's styleUrls or templateUrl.`);
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108 | }
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109 | const outputFilePath = filePath ||
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110 | `${containingFile}-angular-inline--${this.outputPathCounter++}.${resourceType === 'template' ? 'html' : 'css'}`;
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111 | const outputOptions = {
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112 | filename: outputFilePath,
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113 | library: {
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114 | type: 'var',
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115 | name: 'resource',
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116 | },
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117 | };
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118 | const { context, webpack } = this._parentCompilation.compiler;
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119 | const { EntryPlugin, NormalModule, library, node, sources } = webpack;
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120 | const childCompiler = this._parentCompilation.createChildCompiler('angular-compiler:resource', outputOptions, [
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121 | new node.NodeTemplatePlugin(outputOptions),
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122 | new node.NodeTargetPlugin(),
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123 | new EntryPlugin(context, entry, { name: 'resource' }),
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124 | new library.EnableLibraryPlugin('var'),
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125 | ]);
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126 | childCompiler.hooks.thisCompilation.tap('angular-compiler', (compilation, { normalModuleFactory }) => {
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127 | // If no data is provided, the resource will be read from the filesystem
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128 | if (data !== undefined) {
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129 | normalModuleFactory.hooks.resolveForScheme
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130 | .for('angular-resource')
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131 | .tap('angular-compiler', (resourceData) => {
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132 | if (filePath) {
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133 | resourceData.path = filePath;
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134 | resourceData.resource = filePath;
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135 | }
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136 | if (mimeType) {
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137 | resourceData.data.mimetype = mimeType;
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138 | }
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139 | return true;
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140 | });
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141 | NormalModule.getCompilationHooks(compilation)
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142 | .readResourceForScheme.for('angular-resource')
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143 | .tap('angular-compiler', () => data);
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144 | compilation[inline_resource_1.InlineAngularResourceSymbol] = data;
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145 | }
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146 | compilation.hooks.additionalAssets.tap('angular-compiler', () => {
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147 | const asset = compilation.assets[outputFilePath];
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148 | if (!asset) {
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149 | return;
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150 | }
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151 | try {
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152 | const output = this._evaluate(outputFilePath, asset.source().toString());
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153 | if (typeof output === 'string') {
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154 | compilation.assets[outputFilePath] = new sources.RawSource(output);
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155 | }
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156 | }
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157 | catch (error) {
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158 | // Use compilation errors, as otherwise webpack will choke
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159 | compilation.errors.push(error);
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160 | }
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161 | });
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162 | });
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163 | let finalContent;
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164 | childCompiler.hooks.compilation.tap('angular-compiler', (childCompilation) => {
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165 | childCompilation.hooks.processAssets.tap({ name: 'angular-compiler', stage: webpack.Compilation.PROCESS_ASSETS_STAGE_REPORT }, () => {
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166 | var _a;
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167 | finalContent = (_a = childCompilation.assets[outputFilePath]) === null || _a === void 0 ? void 0 : _a.source().toString();
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168 | delete childCompilation.assets[outputFilePath];
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169 | delete childCompilation.assets[outputFilePath + '.map'];
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170 | });
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171 | });
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172 | return new Promise((resolve, reject) => {
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173 | childCompiler.runAsChild((error, _, childCompilation) => {
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174 | var _a, _b;
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175 | if (error) {
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176 | reject(error);
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177 | return;
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178 | }
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179 | else if (!childCompilation) {
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180 | reject(new Error('Unknown child compilation error'));
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181 | return;
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182 | }
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183 | // Workaround to attempt to reduce memory usage of child compilations.
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184 | // This removes the child compilation from the main compilation and manually propagates
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185 | // all dependencies, warnings, and errors.
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186 | const parent = childCompiler.parentCompilation;
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187 | if (parent) {
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188 | parent.children = parent.children.filter((child) => child !== childCompilation);
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189 | let fileDependencies;
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190 | for (const dependency of childCompilation.fileDependencies) {
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191 | // Skip paths that do not appear to be files (have no extension).
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192 | // `fileDependencies` can contain directories and not just files which can
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193 | // cause incorrect cache invalidation on rebuilds.
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194 | if (!path.extname(dependency)) {
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195 | continue;
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196 | }
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197 | if (data && containingFile && dependency.endsWith(entry)) {
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198 | // use containing file if the resource was inline
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199 | parent.fileDependencies.add(containingFile);
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200 | }
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201 | else {
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202 | parent.fileDependencies.add(dependency);
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203 | }
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204 | // Save the dependencies for this resource.
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205 | if (filePath) {
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206 | const resolvedFile = paths_1.normalizePath(dependency);
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207 | const entry = this._reverseDependencies.get(resolvedFile);
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208 | if (entry) {
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209 | entry.add(filePath);
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210 | }
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211 | else {
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212 | this._reverseDependencies.set(resolvedFile, new Set([filePath]));
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213 | }
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214 | if (fileDependencies) {
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215 | fileDependencies.add(dependency);
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216 | }
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217 | else {
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218 | fileDependencies = new Set([dependency]);
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219 | this._fileDependencies.set(filePath, fileDependencies);
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220 | }
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221 | }
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222 | }
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223 | parent.contextDependencies.addAll(childCompilation.contextDependencies);
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224 | parent.missingDependencies.addAll(childCompilation.missingDependencies);
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225 | parent.buildDependencies.addAll(childCompilation.buildDependencies);
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226 | parent.warnings.push(...childCompilation.warnings);
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227 | parent.errors.push(...childCompilation.errors);
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228 | if (this.assetCache) {
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229 | for (const { info, name, source } of childCompilation.getAssets()) {
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230 | // Use the originating file as the cache key if present
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231 | // Otherwise, generate a cache key based on the generated name
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232 | const cacheKey = (_a = info.sourceFilename) !== null && _a !== void 0 ? _a : `!![GENERATED]:${name}`;
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233 | this.assetCache.set(cacheKey, { info, name, source });
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234 | }
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235 | }
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236 | }
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237 | resolve({
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238 | content: finalContent !== null && finalContent !== void 0 ? finalContent : '',
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239 | success: ((_b = childCompilation.errors) === null || _b === void 0 ? void 0 : _b.length) === 0,
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240 | });
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241 | });
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242 | });
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243 | }
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244 | _evaluate(filename, source) {
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245 | var _a;
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246 | // Evaluate code
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247 | const context = {};
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248 | try {
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249 | vm.runInNewContext(source, context, { filename });
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250 | }
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251 | catch {
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252 | // Error are propagated through the child compilation.
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253 | return null;
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254 | }
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255 | if (typeof context.resource === 'string') {
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256 | return context.resource;
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257 | }
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258 | else if (typeof ((_a = context.resource) === null || _a === void 0 ? void 0 : _a.default) === 'string') {
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259 | return context.resource.default;
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260 | }
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261 | throw new Error(`The loader "${filename}" didn't return a string.`);
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262 | }
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263 | async get(filePath) {
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264 | var _a;
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265 | const normalizedFile = paths_1.normalizePath(filePath);
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266 | let compilationResult = (_a = this.fileCache) === null || _a === void 0 ? void 0 : _a.get(normalizedFile);
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267 | if (compilationResult === undefined) {
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268 | // cache miss so compile resource
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269 | compilationResult = await this._compile(filePath);
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270 | // Only cache if compilation was successful
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271 | if (this.fileCache && compilationResult.success) {
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272 | this.fileCache.set(normalizedFile, compilationResult);
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273 | }
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274 | }
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275 | return compilationResult.content;
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276 | }
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277 | async process(data, mimeType, fileExtension, resourceType, containingFile) {
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278 | if (data.trim().length === 0) {
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279 | return '';
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280 | }
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281 | const compilationResult = await this._compile(undefined, data, mimeType, fileExtension, resourceType, containingFile);
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282 | return compilationResult.content;
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283 | }
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284 | }
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285 | exports.WebpackResourceLoader = WebpackResourceLoader;
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