52 lines
2.2 KiB
JavaScript
52 lines
2.2 KiB
JavaScript
"use strict";
|
|
var __importDefault = (this && this.__importDefault) || function (mod) {
|
|
return (mod && mod.__esModule) ? mod : { "default": mod };
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.loadBabelConfig = void 0;
|
|
/**
|
|
* Copyright (c) 650 Industries (Expo). All rights reserved.
|
|
* 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.
|
|
*/
|
|
const node_fs_1 = __importDefault(require("node:fs"));
|
|
const node_path_1 = __importDefault(require("node:path"));
|
|
/**
|
|
* Returns a memoized function that checks for the existence of a
|
|
* project-level .babelrc file. If it doesn't exist, it reads the
|
|
* default React Native babelrc file and uses that.
|
|
*/
|
|
exports.loadBabelConfig = (function () {
|
|
let babelRC = null;
|
|
return function _getBabelRC({ projectRoot }) {
|
|
if (babelRC !== null) {
|
|
return babelRC;
|
|
}
|
|
babelRC = {};
|
|
if (projectRoot) {
|
|
// Check for various babel config files in the project root
|
|
// TODO(EvanBacon): We might want to disable babelrc lookup when the user specifies `enableBabelRCLookup: false`.
|
|
const possibleBabelRCPaths = ['.babelrc', '.babelrc.js', 'babel.config.js'];
|
|
const foundBabelRCPath = possibleBabelRCPaths.find((configFileName) => node_fs_1.default.existsSync(node_path_1.default.resolve(projectRoot, configFileName)));
|
|
// Extend the config if a babel config file is found
|
|
if (foundBabelRCPath) {
|
|
babelRC.extends = node_path_1.default.resolve(projectRoot, foundBabelRCPath);
|
|
}
|
|
}
|
|
// Use the default preset for react-native if no babel config file is found
|
|
if (!babelRC.extends) {
|
|
try {
|
|
babelRC.presets = [require('expo/internal/babel-preset')];
|
|
}
|
|
catch {
|
|
// TODO(@kitten): Temporary, since our E2E tests don't use monorepo
|
|
// packages consistently, including the `expo` package
|
|
babelRC.presets = [require('babel-preset-expo')];
|
|
}
|
|
}
|
|
return babelRC;
|
|
};
|
|
})();
|
|
//# sourceMappingURL=loadBabelConfig.js.map
|