hzoo

loganfsmyth

nicolo-ribaudo

danez

existentialism

babel-loader

 * Given a file and a transform function, cache the result into files

 * or retrieve the previously cached files if the given file is already known.

 * @see https://github.com/babel/babel-loader/issues/34

 * @see https://github.com/babel/babel-loader/pull/41

const findCacheDir = require("find-cache-dir");

const transform = require("./transform");

// use md5 hashing if sha256 is not available

 * Read the contents from the compressed file.

const read = async function (filename, compress) {

  const data = await readFile(filename + (compress ? ".gz" : ""));

  const content = compress ? await gunzip(data) : data;

 * Write contents into a compressed file.

const write = async function (filename, compress, result) {

  const content = JSON.stringify(result);

  const data = compress ? await gzip(content) : content;

  return await writeFile(filename + (compress ? ".gz" : ""), data);

 * Build the filename for the cached file

 * @params {String} source  File source code

const filename = function (source, identifier, options) {

  const hash = crypto.createHash(hashType);

const handleCache = async function (directory, params) {

  const file = path.join(directory, filename(source, cacheIdentifier, options));

    // No errors mean that the file was previously cached

  const result = await transform(source, options);

    await write(file, cacheCompression, result);

      // Fallback to tmpdir if node_modules folder not writable

      return handleCache(os.tmpdir(), params);

  // Do not cache if there are external dependencies,

  // since they might change and we cannot control it.

  if (!result.externalDependencies.length) {

      await write(file, cacheCompression, result);

        // Fallback to tmpdir if node_modules folder not writable

        return handleCache(os.tmpdir(), params);

 * Retrieve file from cache, or create a new one for future reads

 * @param  {String}   params.cacheDirectory   Directory to store cached files

 * @param  {String}   params.cacheIdentifier  Unique identifier to bust cache

 * @param  {Boolean}  params.cacheCompression Whether compressing cached files

 * @param  {String}   params.source   Original contents of the file to be cached

 * @param  {Object}   params.options  Options to be given to the transform fn

 *     cacheIdentifier: 'babel-loader-cachefile',

module.exports = async function (params) {

  if (typeof params.cacheDirectory === "string") {

    if (defaultCacheDirectory === null) {

      defaultCacheDirectory = findCacheDir({

  return await handleCache(directory, params);

    err.message += "\n babel-loader@9 requires Babel 7.12+ (the package '@babel/core'). " + "If you'd like to use Babel 6.x ('babel-core'), you should install 'babel-loader@7'.";

// Since we've got the reverse bridge package at @babel/core@6.x, give

// people useful feedback if they try to use it alongside babel-loader.

  throw new Error("\n babel-loader@9 will not work with the '@babel/core@6' bridge package. " + "If you want to use Babel 6.x, install 'babel-loader@7'.");

const injectCaller = require("./injectCaller");

const validateOptions = require("schema-utils").validate;

function subscribe(subscriber, metadata, context) {

  const overrides = callback ? callback(babel) : undefined;

  return function (source, inputSourceMap) {

    loader.call(this, source, inputSourceMap, overrides).then(args => callback(null, ...args), err => callback(err));

async function loader(source, inputSourceMap, overrides) {

  validateOptions(schema, loaderOptions, {

    if (typeof loaderOptions.customize !== "string") {

      throw new Error("Customized loaders must be implemented as standalone modules.");

    if (!isAbsolute(loaderOptions.customize)) {

      throw new Error("Customized loaders must be passed as absolute paths, since " + "babel-loader has no way to know what they would be relative to.");

      throw new Error("babel-loader's 'customize' option is not available when already " + "using a customized babel-loader wrapper.");

    let override = require(loaderOptions.customize);

    if (override.__esModule) override = override.default;

    if (typeof override !== "function") {

      throw new Error("Custom overrides must be functions.");

  if (overrides && overrides.customOptions) {

    const result = await overrides.customOptions.call(this, loaderOptions, {

    console.warn("The option `forceEnv` has been removed in favor of `envName` in Babel 7.");

  if (typeof loaderOptions.babelrc === "string") {

    console.warn("The option `babelrc` should not be set to a string anymore in the babel-loader config. " + "Please update your configuration and set `babelrc` to true or false.\n" + "If you want to specify a specific babel config file to inherit config from " + "please use the `extends` option.\nFor more information about this options see " + "https://babeljs.io/docs/core-packages/#options");

  // Standardize on 'sourceMaps' as the key passed through to Webpack, so that

  // users may safely use either one alongside our default use of

  // 'this.sourceMap' below without getting error about conflicting aliases.

  if (Object.prototype.hasOwnProperty.call(loaderOptions, "sourceMap") && !Object.prototype.hasOwnProperty.call(loaderOptions, "sourceMaps")) {

    loaderOptions = Object.assign({}, loaderOptions, {

      sourceMaps: loaderOptions.sourceMap

  const programmaticOptions = Object.assign({}, loaderOptions, {

    inputSourceMap: inputSourceMap || loaderOptions.inputSourceMap,

    // Set the default sourcemap behavior based on Webpack's mapping flag,

    // but allow users to override if they want.

    sourceMaps: loaderOptions.sourceMaps === undefined ? this.sourceMap : loaderOptions.sourceMaps,

    // Ensure that Webpack will get a full absolute path in the sourcemap

      externalDependencies == null ? void 0 : externalDependencies.forEach(dep => this.addDependency(dep));

      metadataSubscribers.forEach(subscriber => {

        subscribe(subscriber, metadata, this);

  // If the file was ignored, pass through the original content.

const transform = promisify(babel.transform);

module.exports = async function (source, options) {

    result = await transform(source, options);

    throw err.message && err.codeFrame ? new LoaderError(err) : err;

  // We don't return the full result here because some entries are not

  // really serializable. For a full list of properties see here:

  // https://github.com/babel/babel/blob/main/packages/babel-core/src/transformation/index.js

  // For discussion on this topic see here:

  // https://github.com/babel/babel-loader/pull/629

  if (map && (!map.sourcesContent || !map.sourcesContent.length)) {

    // Convert it from a Set to an Array to make it JSON-serializable.

    externalDependencies: Array.from(externalDependencies || [])

  "description": "babel module loader for webpack",

    "babel-plugin-react-intl": "^8.2.25",

    "react-intl-webpack-plugin": "^0.3.0",

    "build": "babel src/ --out-dir lib/ --copy-files",

    "format": "prettier --write --trailing-comma all 'src/**/*.js' 'test/**/*.test.js' 'test/helpers/*.js' && prettier --write --trailing-comma es5 'scripts/*.js'",

    "prepublish": "yarn run clean && yarn run build",

    "test": "yarn run lint && cross-env BABEL_ENV=test yarn run build && yarn run test-only",

    "url": "https://github.com/babel/babel-loader.git"

  "author": "Luis Couto <hello@luiscouto.pt>",

    "url": "https://github.com/babel/babel-loader/issues"

  "homepage": "https://github.com/babel/babel-loader",

      "prettier --trailing-comma es5 --write",

      "prettier --trailing-comma all --write",

		@@ -28,3 +28,4 @@ "use strict";
		metadata,
		sourceType
		sourceType,
		externalDependencies
		} = result;
		@@ -39,5 +40,7 @@ if (map && (!map.sourcesContent \|\| !map.sourcesContent.length)) {
		metadata,
		sourceType
		sourceType,
		// Convert it from a Set to an Array to make it JSON-serializable.
		externalDependencies: Array.from(externalDependencies \|\| [])
		};
		};
		module.exports.version = babel.version;

		{
		"name": "babel-loader",
		"version": "9.0.1",
		"version": "9.1.0",
		"description": "babel module loader for webpack",
		@@ -45,3 +45,3 @@ "files": [
		"semver": "7.3.2",
		"webpack": "^5.34.0"
		"webpack": "^5.74.0"
		},
		@@ -48,0 +48,0 @@ "scripts": {

		@@ -122,10 +122,15 @@ "use strict";
		const result = await transform(source, options);
		try {
		await write(file, cacheCompression, result);
		} catch (err) {
		if (fallback) {
		// Fallback to tmpdir if node_modules folder not writable
		return handleCache(os.tmpdir(), params);

		// Do not cache if there are external dependencies,
		// since they might change and we cannot control it.
		if (!result.externalDependencies.length) {
		try {
		await write(file, cacheCompression, result);
		} catch (err) {
		if (fallback) {
		// Fallback to tmpdir if node_modules folder not writable
		return handleCache(os.tmpdir(), params);
		}
		throw err;
		}
		throw err;
		}
		@@ -132,0 +137,0 @@ return result;

		@@ -167,4 +167,6 @@ "use strict";
		map,
		metadata
		metadata,
		externalDependencies
		} = result;
		externalDependencies == null ? void 0 : externalDependencies.forEach(dep => this.addDependency(dep));
		metadataSubscribers.forEach(subscriber => {
		@@ -171,0 +173,0 @@ subscribe(subscriber, metadata, this);

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