799 lines
23 KiB
JavaScript
799 lines
23 KiB
JavaScript
|
"use strict";
|
||
|
|
|
||
|
|
const path = require("path");
|
||
|
|
|
||
|
|
const os = require("os");
|
||
|
|
|
||
|
|
const {
|
||
|
|
TraceMap,
|
||
|
|
originalPositionFor
|
||
|
|
} = require("@jridgewell/trace-mapping");
|
||
|
|
|
||
|
|
const {
|
||
|
|
validate
|
||
|
|
} = require("schema-utils");
|
||
|
|
|
||
|
|
const serialize = require("serialize-javascript");
|
||
|
|
|
||
|
|
const {
|
||
|
|
Worker
|
||
|
|
} = require("jest-worker");
|
||
|
|
|
||
|
|
const {
|
||
|
|
throttleAll,
|
||
|
|
terserMinify,
|
||
|
|
uglifyJsMinify,
|
||
|
|
swcMinify,
|
||
|
|
esbuildMinify
|
||
|
|
} = require("./utils");
|
||
|
|
|
||
|
|
const schema = require("./options.json");
|
||
|
|
|
||
|
|
const {
|
||
|
|
minify
|
||
|
|
} = require("./minify");
|
||
|
|
/** @typedef {import("schema-utils/declarations/validate").Schema} Schema */
|
||
|
|
|
||
|
|
/** @typedef {import("webpack").Compiler} Compiler */
|
||
|
|
|
||
|
|
/** @typedef {import("webpack").Compilation} Compilation */
|
||
|
|
|
||
|
|
/** @typedef {import("webpack").WebpackError} WebpackError */
|
||
|
|
|
||
|
|
/** @typedef {import("webpack").Asset} Asset */
|
||
|
|
|
||
|
|
/** @typedef {import("./utils.js").TerserECMA} TerserECMA */
|
||
|
|
|
||
|
|
/** @typedef {import("./utils.js").TerserOptions} TerserOptions */
|
||
|
|
|
||
|
|
/** @typedef {import("jest-worker").Worker} JestWorker */
|
||
|
|
|
||
|
|
/** @typedef {import("@jridgewell/trace-mapping").SourceMapInput} SourceMapInput */
|
||
|
|
|
||
|
|
/** @typedef {RegExp | string} Rule */
|
||
|
|
|
||
|
|
/** @typedef {Rule[] | Rule} Rules */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @callback ExtractCommentsFunction
|
||
|
|
* @param {any} astNode
|
||
|
|
* @param {{ value: string, type: 'comment1' | 'comment2' | 'comment3' | 'comment4', pos: number, line: number, col: number }} comment
|
||
|
|
* @returns {boolean}
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {boolean | 'all' | 'some' | RegExp | ExtractCommentsFunction} ExtractCommentsCondition
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {string | ((fileData: any) => string)} ExtractCommentsFilename
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {boolean | string | ((commentsFile: string) => string)} ExtractCommentsBanner
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {Object} ExtractCommentsObject
|
||
|
|
* @property {ExtractCommentsCondition} [condition]
|
||
|
|
* @property {ExtractCommentsFilename} [filename]
|
||
|
|
* @property {ExtractCommentsBanner} [banner]
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {ExtractCommentsCondition | ExtractCommentsObject} ExtractCommentsOptions
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {Object} MinimizedResult
|
||
|
|
* @property {string} code
|
||
|
|
* @property {SourceMapInput} [map]
|
||
|
|
* @property {Array<Error | string>} [errors]
|
||
|
|
* @property {Array<Error | string>} [warnings]
|
||
|
|
* @property {Array<string>} [extractedComments]
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {{ [file: string]: string }} Input
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {{ [key: string]: any }} CustomOptions
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @template T
|
||
|
|
* @typedef {T extends infer U ? U : CustomOptions} InferDefaultType
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {Object} PredefinedOptions
|
||
|
|
* @property {boolean} [module]
|
||
|
|
* @property {TerserECMA} [ecma]
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @template T
|
||
|
|
* @typedef {PredefinedOptions & InferDefaultType<T>} MinimizerOptions
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @template T
|
||
|
|
* @callback BasicMinimizerImplementation
|
||
|
|
* @param {Input} input
|
||
|
|
* @param {SourceMapInput | undefined} sourceMap
|
||
|
|
* @param {MinimizerOptions<T>} minifyOptions
|
||
|
|
* @param {ExtractCommentsOptions | undefined} extractComments
|
||
|
|
* @returns {Promise<MinimizedResult>}
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {object} MinimizeFunctionHelpers
|
||
|
|
* @property {() => string | undefined} [getMinimizerVersion]
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @template T
|
||
|
|
* @typedef {BasicMinimizerImplementation<T> & MinimizeFunctionHelpers} MinimizerImplementation
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @template T
|
||
|
|
* @typedef {Object} InternalOptions
|
||
|
|
* @property {string} name
|
||
|
|
* @property {string} input
|
||
|
|
* @property {SourceMapInput | undefined} inputSourceMap
|
||
|
|
* @property {ExtractCommentsOptions | undefined} extractComments
|
||
|
|
* @property {{ implementation: MinimizerImplementation<T>, options: MinimizerOptions<T> }} minimizer
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @template T
|
||
|
|
* @typedef {JestWorker & { transform: (options: string) => MinimizedResult, minify: (options: InternalOptions<T>) => MinimizedResult }} MinimizerWorker
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {undefined | boolean | number} Parallel
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {Object} BasePluginOptions
|
||
|
|
* @property {Rules} [test]
|
||
|
|
* @property {Rules} [include]
|
||
|
|
* @property {Rules} [exclude]
|
||
|
|
* @property {ExtractCommentsOptions} [extractComments]
|
||
|
|
* @property {Parallel} [parallel]
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @template T
|
||
|
|
* @typedef {T extends TerserOptions ? { minify?: MinimizerImplementation<T> | undefined, terserOptions?: MinimizerOptions<T> | undefined } : { minify: MinimizerImplementation<T>, terserOptions?: MinimizerOptions<T> | undefined }} DefinedDefaultMinimizerAndOptions
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @template T
|
||
|
|
* @typedef {BasePluginOptions & { minimizer: { implementation: MinimizerImplementation<T>, options: MinimizerOptions<T> } }} InternalPluginOptions
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @template [T=TerserOptions]
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
class TerserPlugin {
|
||
|
|
/**
|
||
|
|
* @param {BasePluginOptions & DefinedDefaultMinimizerAndOptions<T>} [options]
|
||
|
|
*/
|
||
|
|
constructor(options) {
|
||
|
|
validate(
|
||
|
|
/** @type {Schema} */
|
||
|
|
schema, options || {}, {
|
||
|
|
name: "Terser Plugin",
|
||
|
|
baseDataPath: "options"
|
||
|
|
}); // TODO make `minimizer` option instead `minify` and `terserOptions` in the next major release, also rename `terserMinify` to `terserMinimize`
|
||
|
|
|
||
|
|
const {
|
||
|
|
minify =
|
||
|
|
/** @type {MinimizerImplementation<T>} */
|
||
|
|
terserMinify,
|
||
|
|
terserOptions =
|
||
|
|
/** @type {MinimizerOptions<T>} */
|
||
|
|
{},
|
||
|
|
test = /\.[cm]?js(\?.*)?$/i,
|
||
|
|
extractComments = true,
|
||
|
|
parallel = true,
|
||
|
|
include,
|
||
|
|
exclude
|
||
|
|
} = options || {};
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @type {InternalPluginOptions<T>}
|
||
|
|
*/
|
||
|
|
|
||
|
|
this.options = {
|
||
|
|
test,
|
||
|
|
extractComments,
|
||
|
|
parallel,
|
||
|
|
include,
|
||
|
|
exclude,
|
||
|
|
minimizer: {
|
||
|
|
implementation: minify,
|
||
|
|
options: terserOptions
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {any} input
|
||
|
|
* @returns {boolean}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
static isSourceMap(input) {
|
||
|
|
// All required options for `new TraceMap(...options)`
|
||
|
|
// https://github.com/jridgewell/trace-mapping#usage
|
||
|
|
return Boolean(input && input.version && input.sources && Array.isArray(input.sources) && typeof input.mappings === "string");
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {unknown} warning
|
||
|
|
* @param {string} file
|
||
|
|
* @returns {Error}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
static buildWarning(warning, file) {
|
||
|
|
/**
|
||
|
|
* @type {Error & { hideStack: true, file: string }}
|
||
|
|
*/
|
||
|
|
// @ts-ignore
|
||
|
|
const builtWarning = new Error(warning.toString());
|
||
|
|
builtWarning.name = "Warning";
|
||
|
|
builtWarning.hideStack = true;
|
||
|
|
builtWarning.file = file;
|
||
|
|
return builtWarning;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {any} error
|
||
|
|
* @param {string} file
|
||
|
|
* @param {TraceMap} [sourceMap]
|
||
|
|
* @param {Compilation["requestShortener"]} [requestShortener]
|
||
|
|
* @returns {Error}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
static buildError(error, file, sourceMap, requestShortener) {
|
||
|
|
/**
|
||
|
|
* @type {Error & { file?: string }}
|
||
|
|
*/
|
||
|
|
let builtError;
|
||
|
|
|
||
|
|
if (typeof error === "string") {
|
||
|
|
builtError = new Error(`${file} from Terser plugin\n${error}`);
|
||
|
|
builtError.file = file;
|
||
|
|
return builtError;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (error.line) {
|
||
|
|
const original = sourceMap && originalPositionFor(sourceMap, {
|
||
|
|
line: error.line,
|
||
|
|
column: error.col
|
||
|
|
});
|
||
|
|
|
||
|
|
if (original && original.source && requestShortener) {
|
||
|
|
builtError = new Error(`${file} from Terser plugin\n${error.message} [${requestShortener.shorten(original.source)}:${original.line},${original.column}][${file}:${error.line},${error.col}]${error.stack ? `\n${error.stack.split("\n").slice(1).join("\n")}` : ""}`);
|
||
|
|
builtError.file = file;
|
||
|
|
return builtError;
|
||
|
|
}
|
||
|
|
|
||
|
|
builtError = new Error(`${file} from Terser plugin\n${error.message} [${file}:${error.line},${error.col}]${error.stack ? `\n${error.stack.split("\n").slice(1).join("\n")}` : ""}`);
|
||
|
|
builtError.file = file;
|
||
|
|
return builtError;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (error.stack) {
|
||
|
|
builtError = new Error(`${file} from Terser plugin\n${typeof error.message !== "undefined" ? error.message : ""}\n${error.stack}`);
|
||
|
|
builtError.file = file;
|
||
|
|
return builtError;
|
||
|
|
}
|
||
|
|
|
||
|
|
builtError = new Error(`${file} from Terser plugin\n${error.message}`);
|
||
|
|
builtError.file = file;
|
||
|
|
return builtError;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Parallel} parallel
|
||
|
|
* @returns {number}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
static getAvailableNumberOfCores(parallel) {
|
||
|
|
// In some cases cpus() returns undefined
|
||
|
|
// https://github.com/nodejs/node/issues/19022
|
||
|
|
const cpus = os.cpus() || {
|
||
|
|
length: 1
|
||
|
|
};
|
||
|
|
return parallel === true ? cpus.length - 1 : Math.min(Number(parallel) || 0, cpus.length - 1);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Compiler} compiler
|
||
|
|
* @param {Compilation} compilation
|
||
|
|
* @param {Record<string, import("webpack").sources.Source>} assets
|
||
|
|
* @param {{availableNumberOfCores: number}} optimizeOptions
|
||
|
|
* @returns {Promise<void>}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
async optimize(compiler, compilation, assets, optimizeOptions) {
|
||
|
|
const cache = compilation.getCache("TerserWebpackPlugin");
|
||
|
|
let numberOfAssets = 0;
|
||
|
|
const assetsForMinify = await Promise.all(Object.keys(assets).filter(name => {
|
||
|
|
const {
|
||
|
|
info
|
||
|
|
} =
|
||
|
|
/** @type {Asset} */
|
||
|
|
compilation.getAsset(name);
|
||
|
|
|
||
|
|
if ( // Skip double minimize assets from child compilation
|
||
|
|
info.minimized || // Skip minimizing for extracted comments assets
|
||
|
|
info.extractedComments) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!compiler.webpack.ModuleFilenameHelpers.matchObject.bind( // eslint-disable-next-line no-undefined
|
||
|
|
undefined, this.options)(name)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}).map(async name => {
|
||
|
|
const {
|
||
|
|
info,
|
||
|
|
source
|
||
|
|
} =
|
||
|
|
/** @type {Asset} */
|
||
|
|
compilation.getAsset(name);
|
||
|
|
const eTag = cache.getLazyHashedEtag(source);
|
||
|
|
const cacheItem = cache.getItemCache(name, eTag);
|
||
|
|
const output = await cacheItem.getPromise();
|
||
|
|
|
||
|
|
if (!output) {
|
||
|
|
numberOfAssets += 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return {
|
||
|
|
name,
|
||
|
|
info,
|
||
|
|
inputSource: source,
|
||
|
|
output,
|
||
|
|
cacheItem
|
||
|
|
};
|
||
|
|
}));
|
||
|
|
|
||
|
|
if (assetsForMinify.length === 0) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
/** @type {undefined | (() => MinimizerWorker<T>)} */
|
||
|
|
|
||
|
|
|
||
|
|
let getWorker;
|
||
|
|
/** @type {undefined | MinimizerWorker<T>} */
|
||
|
|
|
||
|
|
let initializedWorker;
|
||
|
|
/** @type {undefined | number} */
|
||
|
|
|
||
|
|
let numberOfWorkers;
|
||
|
|
|
||
|
|
if (optimizeOptions.availableNumberOfCores > 0) {
|
||
|
|
// Do not create unnecessary workers when the number of files is less than the available cores, it saves memory
|
||
|
|
numberOfWorkers = Math.min(numberOfAssets, optimizeOptions.availableNumberOfCores); // eslint-disable-next-line consistent-return
|
||
|
|
|
||
|
|
getWorker = () => {
|
||
|
|
if (initializedWorker) {
|
||
|
|
return initializedWorker;
|
||
|
|
}
|
||
|
|
|
||
|
|
initializedWorker =
|
||
|
|
/** @type {MinimizerWorker<T>} */
|
||
|
|
new Worker(require.resolve("./minify"), {
|
||
|
|
numWorkers: numberOfWorkers,
|
||
|
|
enableWorkerThreads: true
|
||
|
|
}); // https://github.com/facebook/jest/issues/8872#issuecomment-524822081
|
||
|
|
|
||
|
|
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,
|
||
|
|
ConcatSource,
|
||
|
|
RawSource
|
||
|
|
} = compiler.webpack.sources;
|
||
|
|
/** @typedef {{ extractedCommentsSource : import("webpack").sources.RawSource, commentsFilename: string }} ExtractedCommentsInfo */
|
||
|
|
|
||
|
|
/** @type {Map<string, ExtractedCommentsInfo>} */
|
||
|
|
|
||
|
|
const allExtractedComments = new Map();
|
||
|
|
const scheduledTasks = [];
|
||
|
|
|
||
|
|
for (const asset of assetsForMinify) {
|
||
|
|
scheduledTasks.push(async () => {
|
||
|
|
const {
|
||
|
|
name,
|
||
|
|
inputSource,
|
||
|
|
info,
|
||
|
|
cacheItem
|
||
|
|
} = asset;
|
||
|
|
let {
|
||
|
|
output
|
||
|
|
} = asset;
|
||
|
|
|
||
|
|
if (!output) {
|
||
|
|
let input;
|
||
|
|
/** @type {SourceMapInput | undefined} */
|
||
|
|
|
||
|
|
let inputSourceMap;
|
||
|
|
const {
|
||
|
|
source: sourceFromInputSource,
|
||
|
|
map
|
||
|
|
} = inputSource.sourceAndMap();
|
||
|
|
input = sourceFromInputSource;
|
||
|
|
|
||
|
|
if (map) {
|
||
|
|
if (!TerserPlugin.isSourceMap(map)) {
|
||
|
|
compilation.warnings.push(
|
||
|
|
/** @type {WebpackError} */
|
||
|
|
new Error(`${name} contains invalid source map`));
|
||
|
|
} else {
|
||
|
|
inputSourceMap =
|
||
|
|
/** @type {SourceMapInput} */
|
||
|
|
map;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Buffer.isBuffer(input)) {
|
||
|
|
input = input.toString();
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @type {InternalOptions<T>}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
const options = {
|
||
|
|
name,
|
||
|
|
input,
|
||
|
|
inputSourceMap,
|
||
|
|
minimizer: {
|
||
|
|
implementation: this.options.minimizer.implementation,
|
||
|
|
// @ts-ignore https://github.com/Microsoft/TypeScript/issues/10727
|
||
|
|
options: { ...this.options.minimizer.options
|
||
|
|
}
|
||
|
|
},
|
||
|
|
extractComments: this.options.extractComments
|
||
|
|
};
|
||
|
|
|
||
|
|
if (typeof options.minimizer.options.module === "undefined") {
|
||
|
|
if (typeof info.javascriptModule !== "undefined") {
|
||
|
|
options.minimizer.options.module = info.javascriptModule;
|
||
|
|
} else if (/\.mjs(\?.*)?$/i.test(name)) {
|
||
|
|
options.minimizer.options.module = true;
|
||
|
|
} else if (/\.cjs(\?.*)?$/i.test(name)) {
|
||
|
|
options.minimizer.options.module = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (typeof options.minimizer.options.ecma === "undefined") {
|
||
|
|
options.minimizer.options.ecma = TerserPlugin.getEcmaVersion(compiler.options.output.environment || {});
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
output = await (getWorker ? getWorker().transform(serialize(options)) : minify(options));
|
||
|
|
} catch (error) {
|
||
|
|
const hasSourceMap = inputSourceMap && TerserPlugin.isSourceMap(inputSourceMap);
|
||
|
|
compilation.errors.push(
|
||
|
|
/** @type {WebpackError} */
|
||
|
|
TerserPlugin.buildError(error, name, hasSourceMap ? new TraceMap(
|
||
|
|
/** @type {SourceMapInput} */
|
||
|
|
inputSourceMap) : // eslint-disable-next-line no-undefined
|
||
|
|
undefined, // eslint-disable-next-line no-undefined
|
||
|
|
hasSourceMap ? compilation.requestShortener : undefined));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (typeof output.code === "undefined") {
|
||
|
|
compilation.errors.push(
|
||
|
|
/** @type {WebpackError} */
|
||
|
|
new Error(`${name} from Terser plugin\nMinimizer doesn't return result`));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (output.warnings && output.warnings.length > 0) {
|
||
|
|
output.warnings = output.warnings.map(
|
||
|
|
/**
|
||
|
|
* @param {Error | string} item
|
||
|
|
*/
|
||
|
|
item => TerserPlugin.buildWarning(item, name));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (output.errors && output.errors.length > 0) {
|
||
|
|
const hasSourceMap = inputSourceMap && TerserPlugin.isSourceMap(inputSourceMap);
|
||
|
|
output.errors = output.errors.map(
|
||
|
|
/**
|
||
|
|
* @param {Error | string} item
|
||
|
|
*/
|
||
|
|
item => TerserPlugin.buildError(item, name, hasSourceMap ? new TraceMap(
|
||
|
|
/** @type {SourceMapInput} */
|
||
|
|
inputSourceMap) : // eslint-disable-next-line no-undefined
|
||
|
|
undefined, // eslint-disable-next-line no-undefined
|
||
|
|
hasSourceMap ? compilation.requestShortener : undefined));
|
||
|
|
}
|
||
|
|
|
||
|
|
let shebang;
|
||
|
|
|
||
|
|
if (
|
||
|
|
/** @type {ExtractCommentsObject} */
|
||
|
|
this.options.extractComments.banner !== false && output.extractedComments && output.extractedComments.length > 0 && output.code.startsWith("#!")) {
|
||
|
|
const firstNewlinePosition = output.code.indexOf("\n");
|
||
|
|
shebang = output.code.substring(0, firstNewlinePosition);
|
||
|
|
output.code = output.code.substring(firstNewlinePosition + 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (output.map) {
|
||
|
|
output.source = new SourceMapSource(output.code, name, output.map, input,
|
||
|
|
/** @type {SourceMapInput} */
|
||
|
|
inputSourceMap, true);
|
||
|
|
} else {
|
||
|
|
output.source = new RawSource(output.code);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (output.extractedComments && output.extractedComments.length > 0) {
|
||
|
|
const commentsFilename =
|
||
|
|
/** @type {ExtractCommentsObject} */
|
||
|
|
this.options.extractComments.filename || "[file].LICENSE.txt[query]";
|
||
|
|
let query = "";
|
||
|
|
let filename = name;
|
||
|
|
const querySplit = filename.indexOf("?");
|
||
|
|
|
||
|
|
if (querySplit >= 0) {
|
||
|
|
query = filename.slice(querySplit);
|
||
|
|
filename = filename.slice(0, querySplit);
|
||
|
|
}
|
||
|
|
|
||
|
|
const lastSlashIndex = filename.lastIndexOf("/");
|
||
|
|
const basename = lastSlashIndex === -1 ? filename : filename.slice(lastSlashIndex + 1);
|
||
|
|
const data = {
|
||
|
|
filename,
|
||
|
|
basename,
|
||
|
|
query
|
||
|
|
};
|
||
|
|
output.commentsFilename = compilation.getPath(commentsFilename, data);
|
||
|
|
let banner; // Add a banner to the original file
|
||
|
|
|
||
|
|
if (
|
||
|
|
/** @type {ExtractCommentsObject} */
|
||
|
|
this.options.extractComments.banner !== false) {
|
||
|
|
banner =
|
||
|
|
/** @type {ExtractCommentsObject} */
|
||
|
|
this.options.extractComments.banner || `For license information please see ${path.relative(path.dirname(name), output.commentsFilename).replace(/\\/g, "/")}`;
|
||
|
|
|
||
|
|
if (typeof banner === "function") {
|
||
|
|
banner = banner(output.commentsFilename);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (banner) {
|
||
|
|
output.source = new ConcatSource(shebang ? `${shebang}\n` : "", `/*! ${banner} */\n`, output.source);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const extractedCommentsString = output.extractedComments.sort().join("\n\n");
|
||
|
|
output.extractedCommentsSource = new RawSource(`${extractedCommentsString}\n`);
|
||
|
|
}
|
||
|
|
|
||
|
|
await cacheItem.storePromise({
|
||
|
|
source: output.source,
|
||
|
|
errors: output.errors,
|
||
|
|
warnings: output.warnings,
|
||
|
|
commentsFilename: output.commentsFilename,
|
||
|
|
extractedCommentsSource: output.extractedCommentsSource
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (output.warnings && output.warnings.length > 0) {
|
||
|
|
for (const warning of output.warnings) {
|
||
|
|
compilation.warnings.push(
|
||
|
|
/** @type {WebpackError} */
|
||
|
|
warning);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (output.errors && output.errors.length > 0) {
|
||
|
|
for (const error of output.errors) {
|
||
|
|
compilation.errors.push(
|
||
|
|
/** @type {WebpackError} */
|
||
|
|
error);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/** @type {Record<string, any>} */
|
||
|
|
|
||
|
|
|
||
|
|
const newInfo = {
|
||
|
|
minimized: true
|
||
|
|
};
|
||
|
|
const {
|
||
|
|
source,
|
||
|
|
extractedCommentsSource
|
||
|
|
} = output; // Write extracted comments to commentsFilename
|
||
|
|
|
||
|
|
if (extractedCommentsSource) {
|
||
|
|
const {
|
||
|
|
commentsFilename
|
||
|
|
} = output;
|
||
|
|
newInfo.related = {
|
||
|
|
license: commentsFilename
|
||
|
|
};
|
||
|
|
allExtractedComments.set(name, {
|
||
|
|
extractedCommentsSource,
|
||
|
|
commentsFilename
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
compilation.updateAsset(name, source, newInfo);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
const limit = getWorker && numberOfAssets > 0 ?
|
||
|
|
/** @type {number} */
|
||
|
|
numberOfWorkers : scheduledTasks.length;
|
||
|
|
await throttleAll(limit, scheduledTasks);
|
||
|
|
|
||
|
|
if (initializedWorker) {
|
||
|
|
await initializedWorker.end();
|
||
|
|
}
|
||
|
|
/** @typedef {{ source: import("webpack").sources.Source, commentsFilename: string, from: string }} ExtractedCommentsInfoWIthFrom */
|
||
|
|
|
||
|
|
|
||
|
|
await Array.from(allExtractedComments).sort().reduce(
|
||
|
|
/**
|
||
|
|
* @param {Promise<unknown>} previousPromise
|
||
|
|
* @param {[string, ExtractedCommentsInfo]} extractedComments
|
||
|
|
* @returns {Promise<ExtractedCommentsInfoWIthFrom>}
|
||
|
|
*/
|
||
|
|
async (previousPromise, [from, value]) => {
|
||
|
|
const previous =
|
||
|
|
/** @type {ExtractedCommentsInfoWIthFrom | undefined} **/
|
||
|
|
await previousPromise;
|
||
|
|
const {
|
||
|
|
commentsFilename,
|
||
|
|
extractedCommentsSource
|
||
|
|
} = value;
|
||
|
|
|
||
|
|
if (previous && previous.commentsFilename === commentsFilename) {
|
||
|
|
const {
|
||
|
|
from: previousFrom,
|
||
|
|
source: prevSource
|
||
|
|
} = previous;
|
||
|
|
const mergedName = `${previousFrom}|${from}`;
|
||
|
|
const name = `${commentsFilename}|${mergedName}`;
|
||
|
|
const eTag = [prevSource, extractedCommentsSource].map(item => cache.getLazyHashedEtag(item)).reduce((previousValue, currentValue) => cache.mergeEtags(previousValue, currentValue));
|
||
|
|
let source = await cache.getPromise(name, eTag);
|
||
|
|
|
||
|
|
if (!source) {
|
||
|
|
source = new ConcatSource(Array.from(new Set([...
|
||
|
|
/** @type {string}*/
|
||
|
|
prevSource.source().split("\n\n"), ...
|
||
|
|
/** @type {string}*/
|
||
|
|
extractedCommentsSource.source().split("\n\n")])).join("\n\n"));
|
||
|
|
await cache.storePromise(name, eTag, source);
|
||
|
|
}
|
||
|
|
|
||
|
|
compilation.updateAsset(commentsFilename, source);
|
||
|
|
return {
|
||
|
|
source,
|
||
|
|
commentsFilename,
|
||
|
|
from: mergedName
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
const existingAsset = compilation.getAsset(commentsFilename);
|
||
|
|
|
||
|
|
if (existingAsset) {
|
||
|
|
return {
|
||
|
|
source: existingAsset.source,
|
||
|
|
commentsFilename,
|
||
|
|
from: commentsFilename
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
compilation.emitAsset(commentsFilename, extractedCommentsSource, {
|
||
|
|
extractedComments: true
|
||
|
|
});
|
||
|
|
return {
|
||
|
|
source: extractedCommentsSource,
|
||
|
|
commentsFilename,
|
||
|
|
from
|
||
|
|
};
|
||
|
|
},
|
||
|
|
/** @type {Promise<unknown>} */
|
||
|
|
Promise.resolve());
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {any} environment
|
||
|
|
* @returns {TerserECMA}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
static getEcmaVersion(environment) {
|
||
|
|
// ES 6th
|
||
|
|
if (environment.arrowFunction || environment.const || environment.destructuring || environment.forOf || environment.module) {
|
||
|
|
return 2015;
|
||
|
|
} // ES 11th
|
||
|
|
|
||
|
|
|
||
|
|
if (environment.bigIntLiteral || environment.dynamicImport) {
|
||
|
|
return 2020;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 5;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @param {Compiler} compiler
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
apply(compiler) {
|
||
|
|
const pluginName = this.constructor.name;
|
||
|
|
const availableNumberOfCores = TerserPlugin.getAvailableNumberOfCores(this.options.parallel);
|
||
|
|
compiler.hooks.compilation.tap(pluginName, compilation => {
|
||
|
|
const hooks = compiler.webpack.javascript.JavascriptModulesPlugin.getCompilationHooks(compilation);
|
||
|
|
const data = serialize({
|
||
|
|
minimizer: typeof this.options.minimizer.implementation.getMinimizerVersion !== "undefined" ? this.options.minimizer.implementation.getMinimizerVersion() || "0.0.0" : "0.0.0",
|
||
|
|
options: this.options.minimizer.options
|
||
|
|
});
|
||
|
|
hooks.chunkHash.tap(pluginName, (chunk, hash) => {
|
||
|
|
hash.update("TerserPlugin");
|
||
|
|
hash.update(data);
|
||
|
|
});
|
||
|
|
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("terser-webpack-plugin", (minimized, {
|
||
|
|
green,
|
||
|
|
formatFlag
|
||
|
|
}) => minimized ?
|
||
|
|
/** @type {Function} */
|
||
|
|
green(
|
||
|
|
/** @type {Function} */
|
||
|
|
formatFlag("minimized")) : "");
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
TerserPlugin.terserMinify = terserMinify;
|
||
|
|
TerserPlugin.uglifyJsMinify = uglifyJsMinify;
|
||
|
|
TerserPlugin.swcMinify = swcMinify;
|
||
|
|
TerserPlugin.esbuildMinify = esbuildMinify;
|
||
|
|
module.exports = TerserPlugin;
|