mirror of https://github.com/jkjoy/sunpeiwen.git
39 lines
1.5 KiB
JavaScript
39 lines
1.5 KiB
JavaScript
/*
|
|
Copyright 2018 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 '../_version.js';
|
|
const SUBSTRING_TO_FIND = '-precache-';
|
|
/**
|
|
* Cleans up incompatible precaches that were created by older versions of
|
|
* Workbox, by a service worker registered under the current scope.
|
|
*
|
|
* This is meant to be called as part of the `activate` event.
|
|
*
|
|
* This should be safe to use as long as you don't include `substringToFind`
|
|
* (defaulting to `-precache-`) in your non-precache cache names.
|
|
*
|
|
* @param {string} currentPrecacheName The cache name currently in use for
|
|
* precaching. This cache won't be deleted.
|
|
* @param {string} [substringToFind='-precache-'] Cache names which include this
|
|
* substring will be deleted (excluding `currentPrecacheName`).
|
|
* @return {Array<string>} A list of all the cache names that were deleted.
|
|
*
|
|
* @private
|
|
* @memberof workbox-precaching
|
|
*/
|
|
const deleteOutdatedCaches = async (currentPrecacheName, substringToFind = SUBSTRING_TO_FIND) => {
|
|
const cacheNames = await self.caches.keys();
|
|
const cacheNamesToDelete = cacheNames.filter((cacheName) => {
|
|
return (cacheName.includes(substringToFind) &&
|
|
cacheName.includes(self.registration.scope) &&
|
|
cacheName !== currentPrecacheName);
|
|
});
|
|
await Promise.all(cacheNamesToDelete.map((cacheName) => self.caches.delete(cacheName)));
|
|
return cacheNamesToDelete;
|
|
};
|
|
export { deleteOutdatedCaches };
|