getPlatformExtension.js•910 B
'use strict';
Object.defineProperty(exports, '__esModule', {
value: true
});
exports.default = getPlatformExtension;
/**
* 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 SUPPORTED_PLATFORM_EXTS = new Set(['android', 'ios', 'native', 'web']);
// Extract platform extension: index.ios.js -> ios
function getPlatformExtension(file, platforms) {
const last = file.lastIndexOf('.');
const secondToLast = file.lastIndexOf('.', last - 1);
if (secondToLast === -1) {
return null;
}
const platform = file.substring(secondToLast + 1, last);
// If an overriding platform array is passed, check that first
if (platforms && platforms.indexOf(platform) !== -1) {
return platform;
}
return SUPPORTED_PLATFORM_EXTS.has(platform) ? platform : null;
}