source: trip-planner-front/node_modules/css-minimizer-webpack-plugin/dist/index.js@ ceaed42

Last change on this file since ceaed42 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit
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Line 
1"use strict";
2
3Object.defineProperty(exports, "__esModule", {
4 value: true
5});
6exports.default = void 0;
7
8var os = _interopRequireWildcard(require("os"));
9
10var _sourceMap = require("source-map");
11
12var _schemaUtils = require("schema-utils");
13
14var _serializeJavascript = _interopRequireDefault(require("serialize-javascript"));
15
16var _pLimit = _interopRequireDefault(require("p-limit"));
17
18var _jestWorker = require("jest-worker");
19
20var _utils = require("./utils");
21
22var schema = _interopRequireWildcard(require("./options.json"));
23
24var _minify = require("./minify");
25
26function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
27
28function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
29
30function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
31
32const warningRegex = /\s.+:+([0-9]+):+([0-9]+)/;
33
34class CssMinimizerPlugin {
35 constructor(options = {}) {
36 (0, _schemaUtils.validate)(schema, options, {
37 name: 'Css Minimizer Plugin',
38 baseDataPath: 'options'
39 });
40 const {
41 minify = _utils.cssnanoMinify,
42 minimizerOptions,
43 test = /\.css(\?.*)?$/i,
44 warningsFilter = () => true,
45 parallel = true,
46 include,
47 exclude
48 } = options;
49 this.options = {
50 test,
51 warningsFilter,
52 parallel,
53 include,
54 exclude,
55 minify,
56 minimizerOptions
57 };
58 }
59
60 static isSourceMap(input) {
61 // All required options for `new SourceMapConsumer(...options)`
62 // https://github.com/mozilla/source-map#new-sourcemapconsumerrawsourcemap
63 return Boolean(input && input.version && input.sources && Array.isArray(input.sources) && typeof input.mappings === 'string');
64 }
65
66 static buildError(error, name, requestShortener, sourceMap) {
67 let builtError;
68
69 if (error.line) {
70 const original = sourceMap && sourceMap.originalPositionFor({
71 line: error.line,
72 column: error.column
73 });
74
75 if (original && original.source && requestShortener) {
76 builtError = new Error(`${name} from Css Minimizer Webpack Plugin\n${error.message} [${requestShortener.shorten(original.source)}:${original.line},${original.column}][${name}:${error.line},${error.column}]${error.stack ? `\n${error.stack.split('\n').slice(1).join('\n')}` : ''}`);
77 builtError.file = name;
78 return builtError;
79 }
80
81 builtError = new Error(`${name} from Css Minimizer \n${error.message} [${name}:${error.line},${error.column}]${error.stack ? `\n${error.stack.split('\n').slice(1).join('\n')}` : ''}`);
82 builtError.file = name;
83 return builtError;
84 }
85
86 if (error.stack) {
87 builtError = new Error(`${name} from Css Minimizer\n${error.stack}`);
88 builtError.file = name;
89 return builtError;
90 }
91
92 builtError = new Error(`${name} from Css Minimizer\n${error.message}`);
93 builtError.file = name;
94 return builtError;
95 }
96
97 static buildWarning(warning, file, sourceMap, requestShortener, warningsFilter) {
98 let warningMessage = warning;
99 let locationMessage = '';
100 let source;
101
102 if (sourceMap) {
103 const match = warningRegex.exec(warning);
104
105 if (match) {
106 const line = +match[1];
107 const column = +match[2];
108 const original = sourceMap.originalPositionFor({
109 line,
110 column
111 });
112
113 if (original && original.source && original.source !== file && requestShortener) {
114 ({
115 source
116 } = original);
117 warningMessage = `${warningMessage.replace(warningRegex, '')}`;
118 locationMessage = `${requestShortener.shorten(original.source)}:${original.line}:${original.column}`;
119 }
120 }
121 }
122
123 if (warningsFilter && !warningsFilter(warning, file, source)) {
124 return null;
125 }
126
127 return `Css Minimizer Plugin: ${warningMessage} ${locationMessage}`;
128 }
129
130 static getAvailableNumberOfCores(parallel) {
131 // In some cases cpus() returns undefined
132 // https://github.com/nodejs/node/issues/19022
133 const cpus = os.cpus() || {
134 length: 1
135 };
136 return parallel === true ? cpus.length - 1 : Math.min(Number(parallel) || 0, cpus.length - 1);
137 }
138
139 async optimize(compiler, compilation, assets, optimizeOptions) {
140 const cache = compilation.getCache('CssMinimizerWebpackPlugin');
141 let numberOfAssetsForMinify = 0;
142 const assetsForMinify = await Promise.all(Object.keys(typeof assets === 'undefined' ? compilation.assets : assets).filter(name => {
143 const {
144 info
145 } = compilation.getAsset(name);
146
147 if ( // Skip double minimize assets from child compilation
148 info.minimized) {
149 return false;
150 }
151
152 if (!compiler.webpack.ModuleFilenameHelpers.matchObject.bind( // eslint-disable-next-line no-undefined
153 undefined, this.options)(name)) {
154 return false;
155 }
156
157 return true;
158 }).map(async name => {
159 const {
160 info,
161 source
162 } = compilation.getAsset(name);
163 const eTag = cache.getLazyHashedEtag(source);
164 const cacheItem = cache.getItemCache(name, eTag);
165 const output = await cacheItem.getPromise();
166
167 if (!output) {
168 numberOfAssetsForMinify += 1;
169 }
170
171 return {
172 name,
173 info,
174 inputSource: source,
175 output,
176 cacheItem
177 };
178 }));
179 let getWorker;
180 let initializedWorker;
181 let numberOfWorkers;
182
183 if (optimizeOptions.availableNumberOfCores > 0) {
184 // Do not create unnecessary workers when the number of files is less than the available cores, it saves memory
185 numberOfWorkers = Math.min(numberOfAssetsForMinify, optimizeOptions.availableNumberOfCores);
186
187 getWorker = () => {
188 if (initializedWorker) {
189 return initializedWorker;
190 }
191
192 initializedWorker = new _jestWorker.Worker(require.resolve('./minify'), {
193 numWorkers: numberOfWorkers,
194 enableWorkerThreads: true
195 }); // https://github.com/facebook/jest/issues/8872#issuecomment-524822081
196
197 const workerStdout = initializedWorker.getStdout();
198
199 if (workerStdout) {
200 workerStdout.on('data', chunk => process.stdout.write(chunk));
201 }
202
203 const workerStderr = initializedWorker.getStderr();
204
205 if (workerStderr) {
206 workerStderr.on('data', chunk => process.stderr.write(chunk));
207 }
208
209 return initializedWorker;
210 };
211 }
212
213 const limit = (0, _pLimit.default)(getWorker && numberOfAssetsForMinify > 0 ? numberOfWorkers : Infinity);
214 const {
215 SourceMapSource,
216 RawSource
217 } = compiler.webpack.sources;
218 const scheduledTasks = [];
219
220 for (const asset of assetsForMinify) {
221 scheduledTasks.push(limit(async () => {
222 const {
223 name,
224 inputSource,
225 cacheItem
226 } = asset;
227 let {
228 output
229 } = asset;
230
231 if (!output) {
232 let input;
233 let inputSourceMap;
234 const {
235 source: sourceFromInputSource,
236 map
237 } = inputSource.sourceAndMap();
238 input = sourceFromInputSource;
239
240 if (map) {
241 if (CssMinimizerPlugin.isSourceMap(map)) {
242 inputSourceMap = map;
243 } else {
244 inputSourceMap = map;
245 compilation.warnings.push(new Error(`${name} contains invalid source map`));
246 }
247 }
248
249 if (Buffer.isBuffer(input)) {
250 input = input.toString();
251 }
252
253 const options = {
254 name,
255 input,
256 inputSourceMap,
257 minify: this.options.minify,
258 minifyOptions: this.options.minimizerOptions
259 };
260
261 try {
262 output = await (getWorker ? getWorker().transform((0, _serializeJavascript.default)(options)) : (0, _minify.minify)(options));
263 } catch (error) {
264 compilation.errors.push(CssMinimizerPlugin.buildError(error, name, compilation.requestShortener, inputSourceMap && CssMinimizerPlugin.isSourceMap(inputSourceMap) ? new _sourceMap.SourceMapConsumer(inputSourceMap) : null));
265 return;
266 }
267
268 if (output.map) {
269 output.source = new SourceMapSource(output.code, name, output.map, input, inputSourceMap, true);
270 } else {
271 output.source = new RawSource(output.code);
272 }
273
274 if (output.warnings && output.warnings.length > 0) {
275 output.warnings = output.warnings.map(warning => CssMinimizerPlugin.buildWarning(warning, name, inputSourceMap && CssMinimizerPlugin.isSourceMap(inputSourceMap) ? new _sourceMap.SourceMapConsumer(inputSourceMap) : null, compilation.requestShortener, this.options.warningsFilter)).filter(Boolean);
276 }
277
278 await cacheItem.storePromise({
279 source: output.source,
280 warnings: output.warnings
281 });
282 }
283
284 if (output.warnings && output.warnings.length > 0) {
285 output.warnings.forEach(warning => {
286 const Warning = class Warning extends Error {
287 constructor(message) {
288 super(message);
289 this.name = 'Warning';
290 this.hideStack = true;
291 this.file = name;
292 }
293
294 };
295 compilation.warnings.push(new Warning(warning));
296 });
297 }
298
299 const newInfo = {
300 minimized: true
301 };
302 const {
303 source
304 } = output;
305 compilation.updateAsset(name, source, newInfo);
306 }));
307 }
308
309 const result = await Promise.all(scheduledTasks);
310
311 if (initializedWorker) {
312 await initializedWorker.end();
313 }
314
315 return result;
316 }
317
318 apply(compiler) {
319 const pluginName = this.constructor.name;
320 const availableNumberOfCores = CssMinimizerPlugin.getAvailableNumberOfCores(this.options.parallel);
321 compiler.hooks.compilation.tap(pluginName, compilation => {
322 compilation.hooks.processAssets.tapPromise({
323 name: pluginName,
324 stage: compiler.webpack.Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_SIZE,
325 additionalAssets: true
326 }, assets => this.optimize(compiler, compilation, assets, {
327 availableNumberOfCores
328 }));
329 compilation.hooks.statsPrinter.tap(pluginName, stats => {
330 stats.hooks.print.for('asset.info.minimized').tap('css-minimizer-webpack-plugin', (minimized, {
331 green,
332 formatFlag
333 }) => // eslint-disable-next-line no-undefined
334 minimized ? green(formatFlag('minimized')) : '');
335 });
336 });
337 }
338
339}
340
341CssMinimizerPlugin.cssnanoMinify = _utils.cssnanoMinify;
342CssMinimizerPlugin.cssoMinify = _utils.cssoMinify;
343CssMinimizerPlugin.cleanCssMinify = _utils.cleanCssMinify;
344var _default = CssMinimizerPlugin;
345exports.default = _default;
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