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33 lines
1.2 KiB
JavaScript
33 lines
1.2 KiB
JavaScript
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/*
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Copyright 2019 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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import { cacheNames } from 'workbox-core/_private/cacheNames.js';
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import { logger } from 'workbox-core/_private/logger.js';
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import { deleteOutdatedCaches } from './utils/deleteOutdatedCaches.js';
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import './_version.js';
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/**
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* Adds an `activate` event listener which will clean up incompatible
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* precaches that were created by older versions of Workbox.
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*
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* @memberof module:workbox-precaching
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*/
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function cleanupOutdatedCaches() {
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// See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705
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self.addEventListener('activate', ((event) => {
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const cacheName = cacheNames.getPrecacheName();
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event.waitUntil(deleteOutdatedCaches(cacheName).then((cachesDeleted) => {
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if (process.env.NODE_ENV !== 'production') {
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if (cachesDeleted.length > 0) {
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logger.log(`The following out-of-date precaches were cleaned up ` +
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`automatically:`, cachesDeleted);
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}
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}
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}));
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}));
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}
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export { cleanupOutdatedCaches };
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