Timmy
7e11154302
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Quality gates / quality (pull_request) Successful in 1m43s
51 lines
1.6 KiB
JavaScript
51 lines
1.6 KiB
JavaScript
const ROOT = new URL(self.registration.scope).pathname;
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const appPath = path => `${ROOT}${String(path).replace(/^\/+/, '')}`;
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const CACHE_NAMESPACE = `timmy-shell:${ROOT}:`;
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const CACHE = `${CACHE_NAMESPACE}v5`;
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const ASSETS = [
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'',
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'index.html',
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'styles.css',
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'app.js',
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'src/domain.js',
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'src/analysis.js',
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'manifest.webmanifest',
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'assets/timmy.svg',
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'assets/icon-192.svg',
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'assets/icon-512.svg',
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].map(appPath);
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self.addEventListener('install', event => event.waitUntil(
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caches.open(CACHE).then(cache => cache.addAll(ASSETS)).then(() => self.skipWaiting()),
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));
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self.addEventListener('activate', event => event.waitUntil(
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caches.keys()
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.then(keys => Promise.all(keys.filter(key =>
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(key.startsWith(CACHE_NAMESPACE) && key !== CACHE)
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|| (ROOT === '/' && key === 'timmy-shell-v4')
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).map(key => caches.delete(key))))
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.then(() => self.clients.claim()),
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));
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self.addEventListener('fetch', event => {
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if (event.request.method !== 'GET') return;
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const pathname = new URL(event.request.url).pathname;
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if (!pathname.startsWith(ROOT)) return;
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if (pathname.startsWith(appPath('api/'))) {
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event.respondWith(fetch(event.request));
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return;
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}
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event.respondWith(
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fetch(event.request)
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.then(response => {
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if (!/\bno-store\b/i.test(response.headers.get('cache-control') || '')) {
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const copy = response.clone();
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caches.open(CACHE).then(cache => cache.put(event.request, copy));
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}
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return response;
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})
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.catch(() => caches.open(CACHE).then(async cache =>
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(await cache.match(event.request)) || cache.match(appPath('index.html'))
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)),
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);
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});
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