react-native/jest/preprocessor.js

58 lines
1.4 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @flow
*/
/* eslint-env node */
'use strict';
const babel = require('babel-core');
const babelRegisterOnly = require('metro-bundler/src/babelRegisterOnly');
const createCacheKeyFunction = require('fbjs-scripts/jest/createCacheKeyFunction');
const nodeFiles = RegExp([
'/local-cli/',
'/metro-bundler/',
].join('|'));
const nodeOptions = babelRegisterOnly.config([nodeFiles]);
babelRegisterOnly([]);
const transformer = require('metro-bundler/src/transformer.js');
module.exports = {
process(src/*: string*/, file/*: string*/) {
if (nodeFiles.test(file)) { // node specific transforms only
return babel.transform(
src,
Object.assign({filename: file}, nodeOptions)
).code;
}
return transformer.transform({
filename: file,
localPath: file,
options: {
dev: true,
inlineRequires: true,
platform: '',
projectRoot: '',
retainLines: true,
},
src,
}).code;
},
getCacheKey: createCacheKeyFunction([
__filename,
require.resolve('metro-bundler/src/transformer.js'),
require.resolve('babel-core/package.json'),
]),
};