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- 'use strict';
- Object.defineProperty(exports, '__esModule', {
- value: true
- });
- exports.default = readConfigFileAndSetRootDir;
- function path() {
- const data = _interopRequireWildcard(require('path'));
- path = function () {
- return data;
- };
- return data;
- }
- function fs() {
- const data = _interopRequireWildcard(require('graceful-fs'));
- fs = function () {
- return data;
- };
- return data;
- }
- function _parseJson() {
- const data = _interopRequireDefault(require('parse-json'));
- _parseJson = function () {
- return data;
- };
- return data;
- }
- function _stripJsonComments() {
- const data = _interopRequireDefault(require('strip-json-comments'));
- _stripJsonComments = function () {
- return data;
- };
- return data;
- }
- function _jestUtil() {
- const data = require('jest-util');
- _jestUtil = function () {
- return data;
- };
- return data;
- }
- var _constants = require('./constants');
- function _interopRequireDefault(obj) {
- return obj && obj.__esModule ? obj : {default: obj};
- }
- function _getRequireWildcardCache(nodeInterop) {
- if (typeof WeakMap !== 'function') return null;
- var cacheBabelInterop = new WeakMap();
- var cacheNodeInterop = new WeakMap();
- return (_getRequireWildcardCache = function (nodeInterop) {
- return nodeInterop ? cacheNodeInterop : cacheBabelInterop;
- })(nodeInterop);
- }
- function _interopRequireWildcard(obj, nodeInterop) {
- if (!nodeInterop && obj && obj.__esModule) {
- return obj;
- }
- if (obj === null || (typeof obj !== 'object' && typeof obj !== 'function')) {
- return {default: obj};
- }
- var cache = _getRequireWildcardCache(nodeInterop);
- if (cache && cache.has(obj)) {
- return cache.get(obj);
- }
- var newObj = {};
- var hasPropertyDescriptor =
- Object.defineProperty && Object.getOwnPropertyDescriptor;
- for (var key in obj) {
- if (key !== 'default' && Object.prototype.hasOwnProperty.call(obj, key)) {
- var desc = hasPropertyDescriptor
- ? Object.getOwnPropertyDescriptor(obj, key)
- : null;
- if (desc && (desc.get || desc.set)) {
- Object.defineProperty(newObj, key, desc);
- } else {
- newObj[key] = obj[key];
- }
- }
- }
- newObj.default = obj;
- if (cache) {
- cache.set(obj, newObj);
- }
- return newObj;
- }
- /**
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
- // Read the configuration and set its `rootDir`
- // 1. If it's a `package.json` file, we look into its "jest" property
- // 2. If it's a `jest.config.ts` file, we use `ts-node` to transpile & require it
- // 3. For any other file, we just require it. If we receive an 'ERR_REQUIRE_ESM'
- // from node, perform a dynamic import instead.
- async function readConfigFileAndSetRootDir(configPath) {
- const isTS = configPath.endsWith(_constants.JEST_CONFIG_EXT_TS);
- const isJSON = configPath.endsWith(_constants.JEST_CONFIG_EXT_JSON);
- let configObject;
- try {
- if (isTS) {
- configObject = await loadTSConfigFile(configPath);
- } else if (isJSON) {
- const fileContent = fs().readFileSync(configPath, 'utf8');
- configObject = (0, _parseJson().default)(
- (0, _stripJsonComments().default)(fileContent),
- configPath
- );
- } else {
- configObject = await (0, _jestUtil().requireOrImportModule)(configPath);
- }
- } catch (error) {
- if (isTS) {
- throw new Error(
- `Jest: Failed to parse the TypeScript config file ${configPath}\n` +
- ` ${error}`
- );
- }
- throw error;
- }
- if (configPath.endsWith(_constants.PACKAGE_JSON)) {
- // Event if there's no "jest" property in package.json we will still use
- // an empty object.
- configObject = configObject.jest || {};
- }
- if (typeof configObject === 'function') {
- configObject = await configObject();
- }
- if (configObject.rootDir) {
- // We don't touch it if it has an absolute path specified
- if (!path().isAbsolute(configObject.rootDir)) {
- // otherwise, we'll resolve it relative to the file's __dirname
- configObject = {
- ...configObject,
- rootDir: path().resolve(
- path().dirname(configPath),
- configObject.rootDir
- )
- };
- }
- } else {
- // If rootDir is not there, we'll set it to this file's __dirname
- configObject = {
- ...configObject,
- rootDir: path().dirname(configPath)
- };
- }
- return configObject;
- }
- // Load the TypeScript configuration
- const loadTSConfigFile = async configPath => {
- // Get registered TypeScript compiler instance
- const registeredCompiler = await getRegisteredCompiler();
- registeredCompiler.enabled(true);
- let configObject = (0, _jestUtil().interopRequireDefault)(
- require(configPath)
- ).default;
- // In case the config is a function which imports more Typescript code
- if (typeof configObject === 'function') {
- configObject = await configObject();
- }
- registeredCompiler.enabled(false);
- return configObject;
- };
- let registeredCompilerPromise;
- function getRegisteredCompiler() {
- // Cache the promise to avoid multiple registrations
- registeredCompilerPromise = registeredCompilerPromise ?? registerTsNode();
- return registeredCompilerPromise;
- }
- async function registerTsNode() {
- try {
- // Register TypeScript compiler instance
- const tsNode = await import('ts-node');
- return tsNode.register({
- compilerOptions: {
- module: 'CommonJS'
- },
- moduleTypes: {
- '**': 'cjs'
- }
- });
- } catch (e) {
- if (e.code === 'ERR_MODULE_NOT_FOUND') {
- throw new Error(
- `Jest: 'ts-node' is required for the TypeScript configuration files. Make sure it is installed\nError: ${e.message}`
- );
- }
- throw e;
- }
- }
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