'use strict';
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var _crypto;
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function _load_crypto() {
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return (_crypto = _interopRequireDefault(require('crypto')));
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}
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var _fs;
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function _load_fs() {
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return (_fs = _interopRequireDefault(require('fs')));
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}
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var _path;
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function _load_path() {
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return (_path = _interopRequireDefault(require('path')));
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}
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var _babelPresetJest;
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function _load_babelPresetJest() {
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return (_babelPresetJest = _interopRequireDefault(
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require('babel-preset-jest')
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));
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}
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var _babelCore;
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function _load_babelCore() {
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return (_babelCore = require('babel-core'));
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}
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var _babelPluginIstanbul;
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function _load_babelPluginIstanbul() {
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return (_babelPluginIstanbul = _interopRequireDefault(
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require('babel-plugin-istanbul')
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));
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}
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function _interopRequireDefault(obj) {
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return obj && obj.__esModule ? obj : {default: obj};
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}
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/**
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* Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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*
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*/
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const BABELRC_FILENAME = '.babelrc';
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const BABELRC_JS_FILENAME = '.babelrc.js';
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const BABEL_CONFIG_JS_FILENAME = 'babel.config.js';
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const BABEL_CONFIG_KEY = 'babel';
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const PACKAGE_JSON = 'package.json';
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const THIS_FILE = (_fs || _load_fs()).default.readFileSync(__filename);
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const createTransformer = options => {
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const cache = Object.create(null);
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const getBabelRC = filename => {
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const paths = [];
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let directory = filename;
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while (
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directory !==
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(directory = (_path || _load_path()).default.dirname(directory))
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) {
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if (cache[directory]) {
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break;
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}
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paths.push(directory);
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const configFilePath = (_path || _load_path()).default.join(
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directory,
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BABELRC_FILENAME
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);
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if ((_fs || _load_fs()).default.existsSync(configFilePath)) {
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cache[directory] = (_fs || _load_fs()).default.readFileSync(
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configFilePath,
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'utf8'
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);
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break;
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}
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let configJsFilePath = (_path || _load_path()).default.join(
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directory,
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BABELRC_JS_FILENAME
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);
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if ((_fs || _load_fs()).default.existsSync(configJsFilePath)) {
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// $FlowFixMe
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cache[directory] = JSON.stringify(require(configJsFilePath));
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break;
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}
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configJsFilePath = (_path || _load_path()).default.join(
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directory,
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BABEL_CONFIG_JS_FILENAME
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);
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if ((_fs || _load_fs()).default.existsSync(configJsFilePath)) {
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// $FlowFixMe
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cache[directory] = JSON.stringify(require(configJsFilePath));
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break;
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}
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const resolvedJsonFilePath = (_path || _load_path()).default.join(
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directory,
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PACKAGE_JSON
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);
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const packageJsonFilePath =
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resolvedJsonFilePath === PACKAGE_JSON
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? (_path || _load_path()).default.resolve(directory, PACKAGE_JSON)
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: resolvedJsonFilePath;
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if ((_fs || _load_fs()).default.existsSync(packageJsonFilePath)) {
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// $FlowFixMe
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const packageJsonFileContents = require(packageJsonFilePath);
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if (packageJsonFileContents[BABEL_CONFIG_KEY]) {
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cache[directory] = JSON.stringify(
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packageJsonFileContents[BABEL_CONFIG_KEY]
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);
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break;
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}
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}
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}
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paths.forEach(directoryPath => (cache[directoryPath] = cache[directory]));
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return cache[directory] || '';
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};
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options = Object.assign({}, options, {
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compact: false,
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plugins: (options && options.plugins) || [],
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presets: ((options && options.presets) || []).concat([
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(_babelPresetJest || _load_babelPresetJest()).default
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]),
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sourceMaps: 'both'
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});
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delete options.cacheDirectory;
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delete options.filename;
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return {
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canInstrument: true,
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getCacheKey: function(fileData, filename, configString, _ref) {
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let instrument = _ref.instrument,
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rootDir = _ref.rootDir;
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return (_crypto || _load_crypto()).default
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.createHash('md5')
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.update(THIS_FILE)
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.update('\0', 'utf8')
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.update(JSON.stringify(options))
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.update('\0', 'utf8')
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.update(fileData)
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.update('\0', 'utf8')
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.update((_path || _load_path()).default.relative(rootDir, filename))
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.update('\0', 'utf8')
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.update(configString)
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.update('\0', 'utf8')
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.update(getBabelRC(filename))
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.update('\0', 'utf8')
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.update(instrument ? 'instrument' : '')
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.digest('hex');
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},
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process: function(src, filename, config, transformOptions) {
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const altExts = config.moduleFileExtensions.map(
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extension => '.' + extension
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);
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if (
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(_babelCore || _load_babelCore()).util &&
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!(_babelCore || _load_babelCore()).util.canCompile(filename, altExts)
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) {
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return src;
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}
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const theseOptions = Object.assign({filename: filename}, options);
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if (transformOptions && transformOptions.instrument) {
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theseOptions.auxiliaryCommentBefore = ' istanbul ignore next ';
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// Copied from jest-runtime transform.js
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theseOptions.plugins = theseOptions.plugins.concat([
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[
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(_babelPluginIstanbul || _load_babelPluginIstanbul()).default,
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{
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// files outside `cwd` will not be instrumented
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cwd: config.rootDir,
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exclude: []
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}
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]
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]);
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}
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// babel v7 might return null in the case when the file has been ignored.
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const transformResult = (0, (_babelCore || _load_babelCore()).transform)(
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src,
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theseOptions
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);
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return transformResult || src;
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}
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};
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};
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module.exports = createTransformer();
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module.exports.createTransformer = createTransformer;
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