98 lines
3.1 KiB
JavaScript
98 lines
3.1 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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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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* @providesModule HMRClient
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* @format
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* @flow
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*/
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'use strict';
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const Platform = require('Platform');
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const invariant = require('fbjs/lib/invariant');
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const MetroHMRClient = require('metro/src/lib/bundle-modules/HMRClient');
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/**
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* HMR Client that receives from the server HMR updates and propagates them
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* runtime to reflects those changes.
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*/
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const HMRClient = {
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enable(platform: string, bundleEntry: string, host: string, port: number) {
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invariant(platform, 'Missing required parameter `platform`');
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invariant(bundleEntry, 'Missing required paramenter `bundleEntry`');
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invariant(host, 'Missing required paramenter `host`');
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// Moving to top gives errors due to NativeModules not being initialized
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const HMRLoadingView = require('HMRLoadingView');
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const wsHostPort = port !== null && port !== '' ? `${host}:${port}` : host;
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bundleEntry = bundleEntry.replace(/\.(bundle|delta)/, '.js');
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// Build the websocket url
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const wsUrl =
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`ws://${wsHostPort}/hot?` +
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`platform=${platform}&` +
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`bundleEntry=${bundleEntry}`;
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const hmrClient = new MetroHMRClient(wsUrl);
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hmrClient.on('connection-error', e => {
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let error = `Hot loading isn't working because it cannot connect to the development server.
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Try the following to fix the issue:
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- Ensure that the packager server is running and available on the same network`;
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if (Platform.OS === 'ios') {
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error += `
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- Ensure that the Packager server URL is correctly set in AppDelegate`;
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} else {
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error += `
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- Ensure that your device/emulator is connected to your machine and has USB debugging enabled - run 'adb devices' to see a list of connected devices
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- If you're on a physical device connected to the same machine, run 'adb reverse tcp:8081 tcp:8081' to forward requests from your device
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- If your device is on the same Wi-Fi network, set 'Debug server host & port for device' in 'Dev settings' to your machine's IP address and the port of the local dev server - e.g. 10.0.1.1:8081`;
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}
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error += `
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URL: ${host}:${port}
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Error: ${e.message}`;
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throw new Error(error);
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});
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hmrClient.on('update-start', () => {
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HMRLoadingView.showMessage('Hot Loading...');
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});
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hmrClient.on('update', () => {
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if (Platform.OS === 'ios') {
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const RCTRedBox = require('NativeModules').RedBox;
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RCTRedBox && RCTRedBox.dismiss && RCTRedBox.dismiss();
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} else {
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const RCTExceptionsManager = require('NativeModules').ExceptionsManager;
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RCTExceptionsManager &&
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RCTExceptionsManager.dismissRedbox &&
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RCTExceptionsManager.dismissRedbox();
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}
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});
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hmrClient.on('update-done', () => {
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HMRLoadingView.hide();
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});
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hmrClient.on('error', data => {
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HMRLoadingView.hide();
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throw new Error(`${data.type} ${data.message}`);
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});
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hmrClient.enable();
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},
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};
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module.exports = HMRClient;
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