Every <wa-icon> was fetched from ka-f.fontawesome.com at runtime —
confirmed from `performance.getEntriesByType('resource')`, 36 requests
— so offline the app had no icons at all. `setBasePath()` does not
affect the icon resolver; only the component autoloader reads it.
Overriding Web Awesome's `default` icon library fixes all 165 call
sites without changing one of them. Cross-origin requests at startup:
22 -> 0.
Three things about it are load-bearing. The set is Font Awesome Free
(CC BY 4.0, vendored with its licence by `scripts/fetch-icons.mjs`)
because the kit CDN serves Pro, which cannot be redistributed. The
names are a committed list rather than anything derived, because
twenty call sites compute their icon name from state and no static
pass can enumerate them. And a name that is not bundled is reported at
runtime to `window.__yjIconMisses` and drawn as a fallback, since a
missing icon used to be impossible — the CDN having had everything.
74 lines
2.3 KiB
JavaScript
74 lines
2.3 KiB
JavaScript
/*
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* Which icons does this app actually use?
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*
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* A static grep cannot answer that: twenty call sites pass a computed
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* name (`this.favCtrl.iconName`, `jobIcon(job)`, `TONE_ICONS[tone]`),
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* and the answer depends on state. So ask the running app instead —
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* before the icons are bundled, every one of them is a request to
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* ka-f.fontawesome.com, which makes the CDN request log an exact
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* inventory of what has to be vendored.
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*
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* This is a one-shot development tool, not part of any build. It is
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* kept because the list it produces will go stale the first time a
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* component grows a new state, and rerunning it is the cheapest way to
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* find out. `frontend/src/icons/manifest.ts` is the committed answer.
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*
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* Usage: make dev-headless SEED=default, then
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* node frontend/scripts/icon-sweep.mjs
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*/
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import { chromium } from '../../e2e/node_modules/@playwright/test/index.mjs';
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const URL_BASE = process.env.YJ_URL ?? 'http://localhost:34115';
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const VIEWS = [
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'home', 'tracks', 'albums', 'artists', 'genres', 'playlists',
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'explore', 'autotag', 'downloads', 'jobs', 'settings',
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];
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const found = new Set();
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const browser = await chromium.launch();
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const page = await browser.newPage({ viewport: { width: 1440, height: 900 } });
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page.on('request', (req) => {
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const m = /fontawesome\.com\/.*\/svgs\/([^/]+)\/([^/?]+)\.svg/.exec(req.url());
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if (m) found.add(`${m[1]}/${m[2]}`);
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});
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await page.goto(URL_BASE, { waitUntil: 'load' });
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await page.waitForTimeout(3000);
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for (const view of VIEWS) {
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await page.evaluate((v) => document.dispatchEvent(
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new CustomEvent('navigate', { detail: { view: v } }),
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), view);
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await page.waitForTimeout(1500);
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}
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// Also collect what is in the DOM but may have been served from the
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// icon module's own cache rather than re-requested.
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const inDom = await page.evaluate(() => {
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const names = new Set();
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const walk = (root) => {
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for (const el of root.querySelectorAll('*')) {
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if (el.tagName === 'WA-ICON' && el.getAttribute('name')) {
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names.add(el.getAttribute('name'));
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}
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if (el.shadowRoot) walk(el.shadowRoot);
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}
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};
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walk(document);
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return [...names];
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});
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await browser.close();
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for (const n of inDom) {
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if (![...found].some((f) => f.endsWith('/' + n))) found.add(`?/${n}`);
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}
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console.log([...found].sort().join('\n'));
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console.log(`\n${found.size} icons`);
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