1  'use strict';
  2  
  3  Object.defineProperty(exports, '__esModule', {
  4    value: true
  5  });
  6  exports.default = readConfigFileAndSetRootDir;
  7  
  8  function path() {
  9    const data = _interopRequireWildcard(require('path'));
 10  
 11    path = function () {
 12      return data;
 13    };
 14  
 15    return data;
 16  }
 17  
 18  function _url() {
 19    const data = require('url');
 20  
 21    _url = function () {
 22      return data;
 23    };
 24  
 25    return data;
 26  }
 27  
 28  function fs() {
 29    const data = _interopRequireWildcard(require('graceful-fs'));
 30  
 31    fs = function () {
 32      return data;
 33    };
 34  
 35    return data;
 36  }
 37  
 38  function _jestUtil() {
 39    const data = require('jest-util');
 40  
 41    _jestUtil = function () {
 42      return data;
 43    };
 44  
 45    return data;
 46  }
 47  
 48  var _constants = require('./constants');
 49  
 50  var _jsonlint = _interopRequireDefault(require('./vendor/jsonlint'));
 51  
 52  function _interopRequireDefault(obj) {
 53    return obj && obj.__esModule ? obj : {default: obj};
 54  }
 55  
 56  function _getRequireWildcardCache() {
 57    if (typeof WeakMap !== 'function') return null;
 58    var cache = new WeakMap();
 59    _getRequireWildcardCache = function () {
 60      return cache;
 61    };
 62    return cache;
 63  }
 64  
 65  function _interopRequireWildcard(obj) {
 66    if (obj && obj.__esModule) {
 67      return obj;
 68    }
 69    if (obj === null || (typeof obj !== 'object' && typeof obj !== 'function')) {
 70      return {default: obj};
 71    }
 72    var cache = _getRequireWildcardCache();
 73    if (cache && cache.has(obj)) {
 74      return cache.get(obj);
 75    }
 76    var newObj = {};
 77    var hasPropertyDescriptor =
 78      Object.defineProperty && Object.getOwnPropertyDescriptor;
 79    for (var key in obj) {
 80      if (Object.prototype.hasOwnProperty.call(obj, key)) {
 81        var desc = hasPropertyDescriptor
 82          ? Object.getOwnPropertyDescriptor(obj, key)
 83          : null;
 84        if (desc && (desc.get || desc.set)) {
 85          Object.defineProperty(newObj, key, desc);
 86        } else {
 87          newObj[key] = obj[key];
 88        }
 89      }
 90    }
 91    newObj.default = obj;
 92    if (cache) {
 93      cache.set(obj, newObj);
 94    }
 95    return newObj;
 96  }
 97  
 98  /**
 99   * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
100   *
101   * This source code is licensed under the MIT license found in the
102   * LICENSE file in the root directory of this source tree.
103   */
104  // @ts-expect-error: vendored
105  // Read the configuration and set its `rootDir`
106  // 1. If it's a `package.json` file, we look into its "jest" property
107  // 2. If it's a `jest.config.ts` file, we use `ts-node` to transpile & require it
108  // 3. For any other file, we just require it. If we receive an 'ERR_REQUIRE_ESM'
109  //    from node, perform a dynamic import instead.
110  async function readConfigFileAndSetRootDir(configPath) {
111    const isTS = configPath.endsWith(_constants.JEST_CONFIG_EXT_TS);
112    const isJSON = configPath.endsWith(_constants.JEST_CONFIG_EXT_JSON);
113    let configObject;
114  
115    try {
116      if (isTS) {
117        configObject = await loadTSConfigFile(configPath);
118      } else {
119        configObject = require(configPath);
120      }
121    } catch (error) {
122      if (error.code === 'ERR_REQUIRE_ESM') {
123        try {
124          const configUrl = (0, _url().pathToFileURL)(configPath); // node `import()` supports URL, but TypeScript doesn't know that
125  
126          const importedConfig = await import(configUrl.href);
127  
128          if (!importedConfig.default) {
129            throw new Error(
130              `Jest: Failed to load mjs config file ${configPath} - did you use a default export?`
131            );
132          }
133  
134          configObject = importedConfig.default;
135        } catch (innerError) {
136          if (innerError.message === 'Not supported') {
137            throw new Error(
138              `Jest: Your version of Node does not support dynamic import - please enable it or use a .cjs file extension for file ${configPath}`
139            );
140          }
141  
142          throw innerError;
143        }
144      } else if (isJSON) {
145        throw new Error(
146          `Jest: Failed to parse config file ${configPath}\n` +
147            `  ${_jsonlint.default.errors(fs().readFileSync(configPath, 'utf8'))}`
148        );
149      } else if (isTS) {
150        throw new Error(
151          `Jest: Failed to parse the TypeScript config file ${configPath}\n` +
152            `  ${error}`
153        );
154      } else {
155        throw error;
156      }
157    }
158  
159    if (configPath.endsWith(_constants.PACKAGE_JSON)) {
160      // Event if there's no "jest" property in package.json we will still use
161      // an empty object.
162      configObject = configObject.jest || {};
163    }
164  
165    if (configObject.rootDir) {
166      // We don't touch it if it has an absolute path specified
167      if (!path().isAbsolute(configObject.rootDir)) {
168        // otherwise, we'll resolve it relative to the file's __dirname
169        configObject.rootDir = path().resolve(
170          path().dirname(configPath),
171          configObject.rootDir
172        );
173      }
174    } else {
175      // If rootDir is not there, we'll set it to this file's __dirname
176      configObject.rootDir = path().dirname(configPath);
177    }
178  
179    return configObject;
180  } // Load the TypeScript configuration
181  
182  const loadTSConfigFile = async configPath => {
183    let registerer; // Register TypeScript compiler instance
184  
185    try {
186      registerer = require('ts-node').register({
187        compilerOptions: {
188          module: 'CommonJS'
189        }
190      });
191    } catch (e) {
192      if (e.code === 'MODULE_NOT_FOUND') {
193        throw new Error(
194          `Jest: 'ts-node' is required for the TypeScript configuration files. Make sure it is installed\nError: ${e.message}`
195        );
196      }
197  
198      throw e;
199    }
200  
201    registerer.enabled(true);
202    let configObject = (0, _jestUtil().interopRequireDefault)(require(configPath))
203      .default; // In case the config is a function which imports more Typescript code
204  
205    if (typeof configObject === 'function') {
206      configObject = await configObject();
207    }
208  
209    registerer.enabled(false);
210    return configObject;
211  };