import {joinPaths, parseUrl} from '../utils.js'; const {useServiceWorker, assetUrlPrefix, appVer, assetVersionEncoded} = window.config; const cachePrefix = 'static-cache-v'; // actual version is set in the service worker script const workerUrl = `${joinPaths(assetUrlPrefix, 'serviceworker.js')}?v=${assetVersionEncoded}`; async function unregisterAll() { for (const registration of await navigator.serviceWorker.getRegistrations()) { if (registration.active) await registration.unregister(); } } async function unregisterOtherWorkers() { for (const registration of await navigator.serviceWorker.getRegistrations()) { const scriptPath = parseUrl(registration.active?.scriptURL || '').pathname; const workerPath = parseUrl(workerUrl).pathname; if (scriptPath !== workerPath) await registration.unregister(); } } async function invalidateCache() { for (const key of await caches.keys()) { if (key.startsWith(cachePrefix)) caches.delete(key); } } async function checkCacheValidity() { const cacheKey = appVer; const storedCacheKey = localStorage.getItem('staticCacheKey'); // invalidate cache if it belongs to a different gitea version if (cacheKey && storedCacheKey !== cacheKey) { await invalidateCache(); localStorage.setItem('staticCacheKey', cacheKey); } } export default async function initServiceWorker() { if (!('serviceWorker' in navigator)) return; if (useServiceWorker) { // unregister all service workers where scriptURL does not match the current one await unregisterOtherWorkers(); try { // the spec strictly requires it to be same-origin so the AssetUrlPrefix should contain AppSubUrl await checkCacheValidity(); await navigator.serviceWorker.register(workerUrl); } catch (err) { console.error(err); await invalidateCache(); await unregisterAll(); } } else { await invalidateCache(); await unregisterAll(); } }