79023ee190
Reviewed By: bhamodi Differential Revision: D33331422 fbshipit-source-id: 016e8dcc0c0c7f1fc353a348b54fda0d5e2ddc01
53 lines
1.6 KiB
TypeScript
53 lines
1.6 KiB
TypeScript
/**
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* Copyright (c) Meta Platforms, Inc. and 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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*/
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import Watchman from './watchman';
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import {getPluginSourceFolders} from 'flipper-plugin-lib';
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export default async function startWatchPlugins(
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onChanged: () => void | Promise<void>,
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) {
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// eslint-disable-next-line no-console
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console.log('🕵️ Watching for plugin changes');
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let delayedCompilation: NodeJS.Timeout | undefined;
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const kCompilationDelayMillis = 1000;
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const onPluginChangeDetected = () => {
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if (!delayedCompilation) {
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delayedCompilation = setTimeout(() => {
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delayedCompilation = undefined;
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// eslint-disable-next-line no-console
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console.log(`🕵️ Detected plugin change`);
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onChanged();
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}, kCompilationDelayMillis);
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}
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};
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try {
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await startWatchingPluginsUsingWatchman(onPluginChangeDetected);
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} catch (err) {
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console.error(
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'Failed to start watching plugin files using Watchman, continue without hot reloading',
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err,
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);
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}
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}
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async function startWatchingPluginsUsingWatchman(onChange: () => void) {
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const pluginFolders = await getPluginSourceFolders();
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await Promise.all(
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pluginFolders.map(async (pluginFolder) => {
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const watchman = new Watchman(pluginFolder);
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await watchman.initialize();
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await watchman.startWatchFiles('.', () => onChange(), {
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excludes: ['**/__tests__/**/*', '**/node_modules/**/*', '**/.*'],
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});
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}),
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);
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}
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