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- "use strict";
- const os = require("os");
- const {
- SourceMapConsumer
- } = require("source-map");
- const {
- validate
- } = require("schema-utils");
- const serialize = require("serialize-javascript");
- const {
- Worker
- } = require("jest-worker");
- const {
- throttleAll,
- cssnanoMinify,
- cssoMinify,
- cleanCssMinify,
- esbuildMinify,
- parcelCssMinify
- } = require("./utils");
- const schema = require("./options.json");
- const {
- minify
- } = require("./minify");
- const warningRegex = /\s.+:+([0-9]+):+([0-9]+)/;
- class CssMinimizerPlugin {
-
- constructor(options) {
- validate(
-
- schema, options || {}, {
- name: "Css Minimizer Plugin",
- baseDataPath: "options"
- });
- const {
- minify =
-
- cssnanoMinify,
- minimizerOptions =
-
- {},
- test = /\.css(\?.*)?$/i,
- warningsFilter = () => true,
- parallel = true,
- include,
- exclude
- } = options || {};
-
- this.options = {
- test,
- warningsFilter,
- parallel,
- include,
- exclude,
- minimizer: {
- implementation:
-
- minify,
- options: minimizerOptions
- }
- };
- }
-
- static isSourceMap(input) {
-
-
- return Boolean(input && input.version && input.sources && Array.isArray(input.sources) && typeof input.mappings === "string");
- }
-
- static buildWarning(warning, file, warningsFilter, sourceMap, requestShortener) {
- let warningMessage = typeof warning === "string" ? warning : `${warning.plugin ? `[${warning.plugin}] ` : ""}${warning.text || warning.message}`;
- let locationMessage = "";
- let source;
- if (sourceMap) {
- let line;
- let column;
- if (typeof warning === "string") {
- const match = warningRegex.exec(warning);
- if (match) {
- line = +match[1];
- column = +match[2];
- }
- } else {
- ({
- line,
- column
- } =
-
- warning);
- }
- if (line && column) {
- const original = sourceMap.originalPositionFor({
- line,
- column
- });
- if (original && original.source && original.source !== file && requestShortener) {
- ({
- source
- } = original);
- warningMessage = `${warningMessage.replace(warningRegex, "")}`;
- locationMessage = `${requestShortener.shorten(original.source)}:${original.line}:${original.column}`;
- }
- }
- }
- if (warningsFilter && !warningsFilter(warning, file, source)) {
- return;
- }
-
- const builtWarning = new Error(`${file} from Css Minimizer plugin\n${warningMessage}${locationMessage ? ` ${locationMessage}` : ""}`);
- builtWarning.name = "Warning";
- builtWarning.hideStack = true;
- builtWarning.file = file;
- return builtWarning;
- }
-
- static buildError(error, file, sourceMap, requestShortener) {
-
- let builtError;
- if (typeof error === "string") {
- builtError = new Error(`${file} from Css Minimizer plugin\n${error}`);
- builtError.file = file;
- return builtError;
- }
- if (
-
- error.line &&
-
- error.column) {
- const {
- line,
- column
- } =
-
- error;
- const original = sourceMap && sourceMap.originalPositionFor({
- line,
- column
- });
- if (original && original.source && requestShortener) {
- builtError = new Error(`${file} from Css Minimizer plugin\n${error.message} [${requestShortener.shorten(original.source)}:${original.line},${original.column}][${file}:${line},${column}]${error.stack ? `\n${error.stack.split("\n").slice(1).join("\n")}` : ""}`);
- builtError.file = file;
- return builtError;
- }
- builtError = new Error(`${file} from Css Minimizer plugin\n${error.message} [${file}:${line},${column}]${error.stack ? `\n${error.stack.split("\n").slice(1).join("\n")}` : ""}`);
- builtError.file = file;
- return builtError;
- }
- if (error.stack) {
- builtError = new Error(`${file} from Css Minimizer plugin\n${error.stack}`);
- builtError.file = file;
- return builtError;
- }
- builtError = new Error(`${file} from Css Minimizer plugin\n${error.message}`);
- builtError.file = file;
- return builtError;
- }
-
- static getAvailableNumberOfCores(parallel) {
-
-
- const cpus = os.cpus() || {
- length: 1
- };
- return parallel === true ? cpus.length - 1 : Math.min(Number(parallel) || 0, cpus.length - 1);
- }
-
- async optimize(compiler, compilation, assets, optimizeOptions) {
- const cache = compilation.getCache("CssMinimizerWebpackPlugin");
- let numberOfAssetsForMinify = 0;
- const assetsForMinify = await Promise.all(Object.keys(typeof assets === "undefined" ? compilation.assets : assets).filter(name => {
- const {
- info
- } =
-
- compilation.getAsset(name);
- if (
- info.minimized) {
- return false;
- }
- if (!compiler.webpack.ModuleFilenameHelpers.matchObject.bind(
- undefined, this.options)(name)) {
- return false;
- }
- return true;
- }).map(async name => {
- const {
- info,
- source
- } =
-
- compilation.getAsset(name);
- const eTag = cache.getLazyHashedEtag(source);
- const cacheItem = cache.getItemCache(name, eTag);
- const output = await cacheItem.getPromise();
- if (!output) {
- numberOfAssetsForMinify += 1;
- }
- return {
- name,
- info,
- inputSource: source,
- output,
- cacheItem
- };
- }));
- if (assetsForMinify.length === 0) {
- return;
- }
-
- let getWorker;
-
- let initializedWorker;
-
- let numberOfWorkers;
- if (optimizeOptions.availableNumberOfCores > 0) {
-
- numberOfWorkers = Math.min(numberOfAssetsForMinify, optimizeOptions.availableNumberOfCores);
- getWorker = () => {
- if (initializedWorker) {
- return initializedWorker;
- }
- initializedWorker =
-
- new Worker(require.resolve("./minify"), {
- numWorkers: numberOfWorkers,
- enableWorkerThreads: true
- });
- const workerStdout = initializedWorker.getStdout();
- if (workerStdout) {
- workerStdout.on("data", chunk => process.stdout.write(chunk));
- }
- const workerStderr = initializedWorker.getStderr();
- if (workerStderr) {
- workerStderr.on("data", chunk => process.stderr.write(chunk));
- }
- return initializedWorker;
- };
- }
- const {
- SourceMapSource,
- RawSource
- } = compiler.webpack.sources;
- const scheduledTasks = [];
- for (const asset of assetsForMinify) {
- scheduledTasks.push(async () => {
- const {
- name,
- inputSource,
- cacheItem
- } = asset;
- let {
- output
- } = asset;
- if (!output) {
- let input;
-
- let inputSourceMap;
- const {
- source: sourceFromInputSource,
- map
- } = inputSource.sourceAndMap();
- input = sourceFromInputSource;
- if (map) {
- if (!CssMinimizerPlugin.isSourceMap(map)) {
- compilation.warnings.push(
-
- new Error(`${name} contains invalid source map`));
- } else {
- inputSourceMap =
-
- map;
- }
- }
- if (Buffer.isBuffer(input)) {
- input = input.toString();
- }
-
- const options = {
- name,
- input,
- inputSourceMap,
- minimizer: {
- implementation: this.options.minimizer.implementation,
- options: this.options.minimizer.options
- }
- };
- let result;
- try {
- result = await (getWorker ? getWorker().transform(serialize(options)) : minify(options));
- } catch (error) {
- const hasSourceMap = inputSourceMap && CssMinimizerPlugin.isSourceMap(inputSourceMap);
- compilation.errors.push(
-
- CssMinimizerPlugin.buildError(
-
- error, name, hasSourceMap ? new SourceMapConsumer(
-
- inputSourceMap) :
- undefined,
- hasSourceMap ? compilation.requestShortener : undefined));
- return;
- }
- output = {
- warnings: [],
- errors: []
- };
- for (const item of result.outputs) {
- if (item.map) {
- let originalSource;
- let innerSourceMap;
- if (output.source) {
- ({
- source: originalSource,
- map: innerSourceMap
- } = output.source.sourceAndMap());
- } else {
- originalSource = input;
- innerSourceMap = inputSourceMap;
- }
- output.source = new SourceMapSource(item.code, name, item.map, originalSource, innerSourceMap, true);
- } else {
- output.source = new RawSource(item.code);
- }
- }
- if (result.errors && result.errors.length > 0) {
- const hasSourceMap = inputSourceMap && CssMinimizerPlugin.isSourceMap(inputSourceMap);
- for (const error of result.errors) {
- output.warnings.push(CssMinimizerPlugin.buildError(error, name, hasSourceMap ? new SourceMapConsumer(
-
- inputSourceMap) :
- undefined,
- hasSourceMap ? compilation.requestShortener : undefined));
- }
- }
- if (result.warnings && result.warnings.length > 0) {
- const hasSourceMap = inputSourceMap && CssMinimizerPlugin.isSourceMap(inputSourceMap);
- for (const warning of result.warnings) {
- const buildWarning = CssMinimizerPlugin.buildWarning(warning, name, this.options.warningsFilter, hasSourceMap ? new SourceMapConsumer(
-
- inputSourceMap) :
- undefined,
- hasSourceMap ? compilation.requestShortener : undefined);
- if (buildWarning) {
- output.warnings.push(buildWarning);
- }
- }
- }
- await cacheItem.storePromise({
- source: output.source,
- warnings: output.warnings,
- errors: output.errors
- });
- }
- if (output.warnings && output.warnings.length > 0) {
- for (const warning of output.warnings) {
- compilation.warnings.push(warning);
- }
- }
- if (output.errors && output.errors.length > 0) {
- for (const error of output.errors) {
- compilation.errors.push(error);
- }
- }
- const newInfo = {
- minimized: true
- };
- const {
- source
- } = output;
- compilation.updateAsset(name, source, newInfo);
- });
- }
- const limit = getWorker && numberOfAssetsForMinify > 0 ?
-
- numberOfWorkers : scheduledTasks.length;
- await throttleAll(limit, scheduledTasks);
- if (initializedWorker) {
- await initializedWorker.end();
- }
- }
-
- apply(compiler) {
- const pluginName = this.constructor.name;
- const availableNumberOfCores = CssMinimizerPlugin.getAvailableNumberOfCores(this.options.parallel);
- compiler.hooks.compilation.tap(pluginName, compilation => {
- compilation.hooks.processAssets.tapPromise({
- name: pluginName,
- stage: compiler.webpack.Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_SIZE,
- additionalAssets: true
- }, assets => this.optimize(compiler, compilation, assets, {
- availableNumberOfCores
- }));
- compilation.hooks.statsPrinter.tap(pluginName, stats => {
- stats.hooks.print.for("asset.info.minimized").tap("css-minimizer-webpack-plugin", (minimized, {
- green,
- formatFlag
- }) =>
- minimized ?
-
- green(
-
- formatFlag("minimized")) : "");
- });
- });
- }
- }
- CssMinimizerPlugin.cssnanoMinify = cssnanoMinify;
- CssMinimizerPlugin.cssoMinify = cssoMinify;
- CssMinimizerPlugin.cleanCssMinify = cleanCssMinify;
- CssMinimizerPlugin.esbuildMinify = esbuildMinify;
- CssMinimizerPlugin.parcelCssMinify = parcelCssMinify;
- module.exports = CssMinimizerPlugin;
|