CDSS-daming-web/node_modules/workbox-precaching/cleanupOutdatedCaches.mjs

/*
  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.mjs';
import {logger} from 'workbox-core/_private/logger.mjs';
import {deleteOutdatedCaches} from './utils/deleteOutdatedCaches.mjs';
import './_version.mjs';


/**
 * Adds an `activate` event listener which will clean up incompatible
 * precaches that were created by older versions of Workbox.
 *
 * @alias workbox.precaching.cleanupOutdatedCaches
 */
export const cleanupOutdatedCaches = () => {
  addEventListener('activate', (event) => {
    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          logger.log(`The following out-of-date precaches were cleaned up ` +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);
        }
      }
    }));
  });
};