455 lines
15 KiB
JavaScript
455 lines
15 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.default = void 0;
|
|
|
|
var _path = _interopRequireDefault(require("path"));
|
|
|
|
var _sourceMap = require("source-map");
|
|
|
|
var _webpackSources = require("webpack-sources");
|
|
|
|
var _RequestShortener = _interopRequireDefault(require("webpack/lib/RequestShortener"));
|
|
|
|
var _webpack = require("webpack");
|
|
|
|
var _schemaUtils = _interopRequireDefault(require("schema-utils"));
|
|
|
|
var _serializeJavascript = _interopRequireDefault(require("serialize-javascript"));
|
|
|
|
var _package = _interopRequireDefault(require("terser/package.json"));
|
|
|
|
var _options = _interopRequireDefault(require("./options.json"));
|
|
|
|
var _TaskRunner = _interopRequireDefault(require("./TaskRunner"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
|
const warningRegex = /\[.+:([0-9]+),([0-9]+)\]/;
|
|
|
|
class TerserPlugin {
|
|
constructor(options = {}) {
|
|
(0, _schemaUtils.default)(_options.default, options, {
|
|
name: 'Terser Plugin',
|
|
baseDataPath: 'options'
|
|
});
|
|
const {
|
|
minify,
|
|
terserOptions = {},
|
|
test = /\.m?js(\?.*)?$/i,
|
|
chunkFilter = () => true,
|
|
warningsFilter = () => true,
|
|
extractComments = true,
|
|
sourceMap,
|
|
cache = true,
|
|
cacheKeys = defaultCacheKeys => defaultCacheKeys,
|
|
parallel = true,
|
|
include,
|
|
exclude
|
|
} = options;
|
|
this.options = {
|
|
test,
|
|
chunkFilter,
|
|
warningsFilter,
|
|
extractComments,
|
|
sourceMap,
|
|
cache,
|
|
cacheKeys,
|
|
parallel,
|
|
include,
|
|
exclude,
|
|
minify,
|
|
terserOptions
|
|
};
|
|
}
|
|
|
|
static isSourceMap(input) {
|
|
// All required options for `new SourceMapConsumer(...options)`
|
|
// https://github.com/mozilla/source-map#new-sourcemapconsumerrawsourcemap
|
|
return Boolean(input && input.version && input.sources && Array.isArray(input.sources) && typeof input.mappings === 'string');
|
|
}
|
|
|
|
static buildSourceMap(inputSourceMap) {
|
|
if (!inputSourceMap || !TerserPlugin.isSourceMap(inputSourceMap)) {
|
|
return null;
|
|
}
|
|
|
|
return new _sourceMap.SourceMapConsumer(inputSourceMap);
|
|
}
|
|
|
|
static buildError(error, file, sourceMap, requestShortener) {
|
|
// Handling error which should have line, col, filename and message
|
|
if (error.line) {
|
|
const original = sourceMap && sourceMap.originalPositionFor({
|
|
line: error.line,
|
|
column: error.col
|
|
});
|
|
|
|
if (original && original.source && requestShortener) {
|
|
return new Error(`${file} from Terser\n${error.message} [${requestShortener.shorten(original.source)}:${original.line},${original.column}][${file}:${error.line},${error.col}]${error.stack ? `\n${error.stack.split('\n').slice(1).join('\n')}` : ''}`);
|
|
}
|
|
|
|
return new Error(`${file} from Terser\n${error.message} [${file}:${error.line},${error.col}]${error.stack ? `\n${error.stack.split('\n').slice(1).join('\n')}` : ''}`);
|
|
}
|
|
|
|
if (error.stack) {
|
|
return new Error(`${file} from Terser\n${error.stack}`);
|
|
}
|
|
|
|
return new Error(`${file} from Terser\n${error.message}`);
|
|
}
|
|
|
|
static buildWarning(warning, file, sourceMap, requestShortener, warningsFilter) {
|
|
let warningMessage = warning;
|
|
let locationMessage = '';
|
|
let source = null;
|
|
|
|
if (sourceMap) {
|
|
const match = warningRegex.exec(warning);
|
|
|
|
if (match) {
|
|
const line = +match[1];
|
|
const column = +match[2];
|
|
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}]`;
|
|
}
|
|
}
|
|
} // Todo change order in next major release
|
|
|
|
|
|
if (warningsFilter && !warningsFilter(warning, source, file)) {
|
|
return null;
|
|
}
|
|
|
|
return `Terser Plugin: ${warningMessage}${locationMessage}`;
|
|
}
|
|
|
|
static removeQueryString(filename) {
|
|
let targetFilename = filename;
|
|
const queryStringIdx = targetFilename.indexOf('?');
|
|
|
|
if (queryStringIdx >= 0) {
|
|
targetFilename = targetFilename.substr(0, queryStringIdx);
|
|
}
|
|
|
|
return targetFilename;
|
|
}
|
|
|
|
static hasAsset(commentFilename, assets) {
|
|
const assetFilenames = Object.keys(assets).map(assetFilename => TerserPlugin.removeQueryString(assetFilename));
|
|
return assetFilenames.includes(TerserPlugin.removeQueryString(commentFilename));
|
|
}
|
|
|
|
static isWebpack4() {
|
|
return _webpack.version[0] === '4';
|
|
}
|
|
|
|
*taskGenerator(compiler, compilation, allExtractedComments, file) {
|
|
let inputSourceMap;
|
|
const asset = compilation.assets[file];
|
|
|
|
try {
|
|
let input;
|
|
|
|
if (this.options.sourceMap && asset.sourceAndMap) {
|
|
const {
|
|
source,
|
|
map
|
|
} = asset.sourceAndMap();
|
|
input = source;
|
|
|
|
if (TerserPlugin.isSourceMap(map)) {
|
|
inputSourceMap = map;
|
|
} else {
|
|
inputSourceMap = map;
|
|
compilation.warnings.push(new Error(`${file} contains invalid source map`));
|
|
}
|
|
} else {
|
|
input = asset.source();
|
|
inputSourceMap = null;
|
|
} // Handling comment extraction
|
|
|
|
|
|
let commentsFilename = false;
|
|
|
|
if (this.options.extractComments) {
|
|
commentsFilename = this.options.extractComments.filename || '[file].LICENSE.txt[query]';
|
|
|
|
if (TerserPlugin.isWebpack4()) {
|
|
// Todo remove this in next major release
|
|
if (typeof commentsFilename === 'function') {
|
|
commentsFilename = commentsFilename.bind(null, file);
|
|
}
|
|
}
|
|
|
|
let query = '';
|
|
let filename = file;
|
|
const querySplit = filename.indexOf('?');
|
|
|
|
if (querySplit >= 0) {
|
|
query = filename.substr(querySplit);
|
|
filename = filename.substr(0, querySplit);
|
|
}
|
|
|
|
const lastSlashIndex = filename.lastIndexOf('/');
|
|
const basename = lastSlashIndex === -1 ? filename : filename.substr(lastSlashIndex + 1);
|
|
const data = {
|
|
filename,
|
|
basename,
|
|
query
|
|
};
|
|
commentsFilename = compilation.getPath(commentsFilename, data);
|
|
}
|
|
|
|
if (commentsFilename && TerserPlugin.hasAsset(commentsFilename, compilation.assets)) {
|
|
// Todo make error and stop uglifing in next major release
|
|
compilation.warnings.push(new Error(`The comment file "${TerserPlugin.removeQueryString(commentsFilename)}" conflicts with an existing asset, this may lead to code corruption, please use a different name`));
|
|
}
|
|
|
|
const callback = taskResult => {
|
|
let {
|
|
code
|
|
} = taskResult;
|
|
const {
|
|
error,
|
|
map,
|
|
warnings
|
|
} = taskResult;
|
|
const {
|
|
extractedComments
|
|
} = taskResult;
|
|
let sourceMap = null;
|
|
|
|
if (error || warnings && warnings.length > 0) {
|
|
sourceMap = TerserPlugin.buildSourceMap(inputSourceMap);
|
|
} // Handling results
|
|
// Error case: add errors, and go to next file
|
|
|
|
|
|
if (error) {
|
|
compilation.errors.push(TerserPlugin.buildError(error, file, sourceMap, new _RequestShortener.default(compiler.context)));
|
|
return;
|
|
}
|
|
|
|
const hasExtractedComments = commentsFilename && extractedComments && extractedComments.length > 0;
|
|
const hasBannerForExtractedComments = hasExtractedComments && this.options.extractComments.banner !== false;
|
|
let outputSource;
|
|
let shebang;
|
|
|
|
if (hasExtractedComments && hasBannerForExtractedComments && code.startsWith('#!')) {
|
|
const firstNewlinePosition = code.indexOf('\n');
|
|
shebang = code.substring(0, firstNewlinePosition);
|
|
code = code.substring(firstNewlinePosition + 1);
|
|
}
|
|
|
|
if (map) {
|
|
outputSource = new _webpackSources.SourceMapSource(code, file, map, input, inputSourceMap, true);
|
|
} else {
|
|
outputSource = new _webpackSources.RawSource(code);
|
|
} // Write extracted comments to commentsFilename
|
|
|
|
|
|
if (hasExtractedComments) {
|
|
if (!allExtractedComments[commentsFilename]) {
|
|
// eslint-disable-next-line no-param-reassign
|
|
allExtractedComments[commentsFilename] = [];
|
|
} // eslint-disable-next-line no-param-reassign
|
|
|
|
|
|
allExtractedComments[commentsFilename] = allExtractedComments[commentsFilename].concat(extractedComments); // Add a banner to the original file
|
|
|
|
if (hasBannerForExtractedComments) {
|
|
let banner = this.options.extractComments.banner || `For license information please see ${_path.default.relative(_path.default.dirname(file), commentsFilename).replace(/\\/g, '/')}`;
|
|
|
|
if (typeof banner === 'function') {
|
|
banner = banner(commentsFilename);
|
|
}
|
|
|
|
if (banner) {
|
|
outputSource = new _webpackSources.ConcatSource(shebang ? `${shebang}\n` : '', `/*! ${banner} */\n`, outputSource);
|
|
}
|
|
}
|
|
} // Updating assets
|
|
// eslint-disable-next-line no-param-reassign
|
|
|
|
|
|
compilation.assets[file] = outputSource; // Handling warnings
|
|
|
|
if (warnings && warnings.length > 0) {
|
|
warnings.forEach(warning => {
|
|
const builtWarning = TerserPlugin.buildWarning(warning, file, sourceMap, new _RequestShortener.default(compiler.context), this.options.warningsFilter);
|
|
|
|
if (builtWarning) {
|
|
compilation.warnings.push(builtWarning);
|
|
}
|
|
});
|
|
}
|
|
};
|
|
|
|
const task = {
|
|
asset,
|
|
file,
|
|
input,
|
|
inputSourceMap,
|
|
commentsFilename,
|
|
extractComments: this.options.extractComments,
|
|
terserOptions: this.options.terserOptions,
|
|
minify: this.options.minify,
|
|
callback
|
|
};
|
|
|
|
if (TerserPlugin.isWebpack4()) {
|
|
const {
|
|
outputOptions: {
|
|
hashSalt,
|
|
hashDigest,
|
|
hashDigestLength,
|
|
hashFunction
|
|
}
|
|
} = compilation;
|
|
|
|
const hash = _webpack.util.createHash(hashFunction);
|
|
|
|
if (hashSalt) {
|
|
hash.update(hashSalt);
|
|
}
|
|
|
|
hash.update(input);
|
|
const digest = hash.digest(hashDigest);
|
|
|
|
if (this.options.cache) {
|
|
const defaultCacheKeys = {
|
|
terser: _package.default.version,
|
|
// eslint-disable-next-line global-require
|
|
'terser-webpack-plugin': require('../package.json').version,
|
|
'terser-webpack-plugin-options': this.options,
|
|
nodeVersion: process.version,
|
|
filename: file,
|
|
contentHash: digest.substr(0, hashDigestLength)
|
|
};
|
|
task.cacheKeys = this.options.cacheKeys(defaultCacheKeys, file);
|
|
}
|
|
} else {
|
|
task.cacheKeys = {
|
|
terser: _package.default.version,
|
|
// eslint-disable-next-line global-require
|
|
'terser-webpack-plugin': require('../package.json').version,
|
|
'terser-webpack-plugin-options': this.options
|
|
};
|
|
}
|
|
|
|
yield task;
|
|
} catch (error) {
|
|
compilation.errors.push(TerserPlugin.buildError(error, file, TerserPlugin.buildSourceMap(inputSourceMap), new _RequestShortener.default(compiler.context)));
|
|
}
|
|
}
|
|
|
|
apply(compiler) {
|
|
const {
|
|
devtool,
|
|
output,
|
|
plugins
|
|
} = compiler.options;
|
|
this.options.sourceMap = typeof this.options.sourceMap === 'undefined' ? devtool && !devtool.includes('eval') && !devtool.includes('cheap') && (devtool.includes('source-map') || // Todo remove when `webpack@5` support will be dropped
|
|
devtool.includes('sourcemap')) || plugins && plugins.some(plugin => plugin instanceof _webpack.SourceMapDevToolPlugin && plugin.options && plugin.options.columns) : Boolean(this.options.sourceMap);
|
|
|
|
if (typeof this.options.terserOptions.module === 'undefined' && typeof output.module !== 'undefined') {
|
|
this.options.terserOptions.module = output.module;
|
|
}
|
|
|
|
if (typeof this.options.terserOptions.ecma === 'undefined' && typeof output.ecmaVersion !== 'undefined') {
|
|
this.options.terserOptions.ecma = output.ecmaVersion;
|
|
}
|
|
|
|
const optimizeFn = async (compilation, chunks) => {
|
|
const matchObject = _webpack.ModuleFilenameHelpers.matchObject.bind( // eslint-disable-next-line no-undefined
|
|
undefined, this.options);
|
|
|
|
const files = [].concat(Array.from(compilation.additionalChunkAssets || [])).concat(Array.from(chunks).filter(chunk => this.options.chunkFilter && this.options.chunkFilter(chunk)).reduce((acc, chunk) => acc.concat(Array.from(chunk.files || [])), [])).filter(file => matchObject(file));
|
|
|
|
if (files.length === 0) {
|
|
return Promise.resolve();
|
|
}
|
|
|
|
const CacheEngine = TerserPlugin.isWebpack4() ? // eslint-disable-next-line global-require
|
|
require('./Webpack4Cache').default : // eslint-disable-next-line global-require
|
|
require('./Webpack5Cache').default;
|
|
const allExtractedComments = {};
|
|
const taskGenerator = this.taskGenerator.bind(this, compiler, compilation, allExtractedComments);
|
|
const taskRunner = new _TaskRunner.default({
|
|
taskGenerator,
|
|
files,
|
|
cache: new CacheEngine(compiler, compilation, this.options),
|
|
parallel: this.options.parallel
|
|
});
|
|
await taskRunner.run();
|
|
await taskRunner.exit();
|
|
Object.keys(allExtractedComments).forEach(commentsFilename => {
|
|
const extractedComments = new Set([...allExtractedComments[commentsFilename].sort()]); // eslint-disable-next-line no-param-reassign
|
|
|
|
compilation.assets[commentsFilename] = new _webpackSources.RawSource(`${Array.from(extractedComments).join('\n\n')}\n`);
|
|
});
|
|
return Promise.resolve();
|
|
};
|
|
|
|
const plugin = {
|
|
name: this.constructor.name
|
|
};
|
|
compiler.hooks.compilation.tap(plugin, compilation => {
|
|
if (this.options.sourceMap) {
|
|
compilation.hooks.buildModule.tap(plugin, moduleArg => {
|
|
// to get detailed location info about errors
|
|
// eslint-disable-next-line no-param-reassign
|
|
moduleArg.useSourceMap = true;
|
|
});
|
|
}
|
|
|
|
if (!TerserPlugin.isWebpack4()) {
|
|
const hooks = _webpack.javascript.JavascriptModulesPlugin.getCompilationHooks(compilation);
|
|
|
|
const data = (0, _serializeJavascript.default)({
|
|
terser: _package.default.version,
|
|
terserOptions: this.options.terserOptions
|
|
});
|
|
hooks.chunkHash.tap(plugin, (chunk, hash) => {
|
|
hash.update('TerserPlugin');
|
|
hash.update(data);
|
|
});
|
|
} else {
|
|
// Todo remove after drop `webpack@4` compatibility
|
|
const {
|
|
mainTemplate,
|
|
chunkTemplate
|
|
} = compilation;
|
|
const data = (0, _serializeJavascript.default)({
|
|
terser: _package.default.version,
|
|
terserOptions: this.options.terserOptions
|
|
}); // Regenerate `contenthash` for minified assets
|
|
|
|
for (const template of [mainTemplate, chunkTemplate]) {
|
|
template.hooks.hashForChunk.tap(plugin, hash => {
|
|
hash.update('TerserPlugin');
|
|
hash.update(data);
|
|
});
|
|
}
|
|
}
|
|
|
|
compilation.hooks.optimizeChunkAssets.tapPromise(plugin, optimizeFn.bind(this, compilation));
|
|
});
|
|
}
|
|
|
|
}
|
|
|
|
var _default = TerserPlugin;
|
|
exports.default = _default; |