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31 lines
930 B
31 lines
930 B
'use strict'; |
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Object.defineProperty(exports, '__esModule', { |
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value: true |
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}); |
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exports.default = getPlatformExtension; |
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/** |
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* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved. |
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* |
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* This source code is licensed under the MIT license found in the |
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* LICENSE file in the root directory of this source tree. |
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*/ |
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const SUPPORTED_PLATFORM_EXTS = new Set(['android', 'ios', 'native', 'web']); // Extract platform extension: index.ios.js -> ios |
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function getPlatformExtension(file, platforms) { |
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const last = file.lastIndexOf('.'); |
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const secondToLast = file.lastIndexOf('.', last - 1); |
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if (secondToLast === -1) { |
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return null; |
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} |
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const platform = file.substring(secondToLast + 1, last); // If an overriding platform array is passed, check that first |
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if (platforms && platforms.indexOf(platform) !== -1) { |
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return platform; |
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} |
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return SUPPORTED_PLATFORM_EXTS.has(platform) ? platform : null; |
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}
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