mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
George Zahariev
8553e1acc4
Summary: We are rolling out exact-by-default syntax to xplat/js. I had to manually move around some comments to preserve proper placement. Changelog: [Internal] Reviewed By: jbrown215 Differential Revision: D18633611 fbshipit-source-id: 48f7468dcc55b1d00985419d035a61c6820b3abe
43 lines
990 B
JavaScript
43 lines
990 B
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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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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* @format
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* @flow
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*/
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'use strict';
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import NativeSourceCode from '../../NativeModules/specs/NativeSourceCode';
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let _cachedDevServerURL: ?string;
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const FALLBACK = 'http://localhost:8081/';
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type DevServerInfo = {
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url: string,
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bundleLoadedFromServer: boolean,
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...
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};
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/**
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* Many RN development tools rely on the development server (packager) running
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* @return URL to packager with trailing slash
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*/
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function getDevServer(): DevServerInfo {
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if (_cachedDevServerURL === undefined) {
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const match = NativeSourceCode.getConstants().scriptURL.match(
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/^https?:\/\/.*?\//,
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);
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_cachedDevServerURL = match ? match[0] : null;
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}
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return {
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url: _cachedDevServerURL || FALLBACK,
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bundleLoadedFromServer: _cachedDevServerURL !== null,
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};
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}
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module.exports = getDevServer;
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