forked from jestjs/jest
/
requireOrImportModule.ts
59 lines (53 loc) 路 1.75 KB
/
requireOrImportModule.ts
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/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import {isAbsolute} from 'path';
import {pathToFileURL} from 'url';
import type {Config} from '@jest/types';
import interopRequireDefault from './interopRequireDefault';
export default async function requireOrImportModule<T>(
filePath: Config.Path,
applyInteropRequireDefault = true,
): Promise<T> {
if (!isAbsolute(filePath) && filePath[0] === '.') {
throw new Error(
`Jest: requireOrImportModule path must be absolute, was "${filePath}"`,
);
}
try {
const requiredModule = require(filePath);
if (!applyInteropRequireDefault) {
return requiredModule;
}
return interopRequireDefault(requiredModule).default;
} catch (error) {
if (error.code === 'ERR_REQUIRE_ESM') {
try {
const moduleUrl = pathToFileURL(filePath);
// node `import()` supports URL, but TypeScript doesn't know that
const importedModule = await import(moduleUrl.href);
if (!applyInteropRequireDefault) {
return importedModule;
}
if (!importedModule.default) {
throw new Error(
`Jest: Failed to load ESM at ${filePath} - did you use a default export?`,
);
}
return importedModule.default;
} catch (innerError) {
if (innerError.message === 'Not supported') {
throw new Error(
`Jest: Your version of Node does not support dynamic import - please enable it or use a .cjs file extension for file ${filePath}`,
);
}
throw innerError;
}
} else {
throw error;
}
}
}