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 0) { logger.log( `The following out-of-date precaches were cleaned up ` + `automatically:`, cachesDeleted, ); } } }), ); }) as EventListener); } export {cleanupOutdatedCaches};