feat(fonts): granular preload

[florian-lefebvre]

---
import { Font } from 'astro:assets'
---

<Font cssVariable='--font-test' preload={[{ weight: 400 }]} />

Preview release

npm i https://pkg.pr.new/astro@13826

Changes

• Requested on the Stage 3 RFC
• Until now you only had the ability to preload all or nothing for a given family
• With this PR, it's now possible to filter based on weight and optionally style

Testing

• Added unit test for renderFontWeight
• Updated the orchestrate unit tests to verify we collect the weight/style preload data
• Tested manually
• Updated the fixture test to check filtering works

Docs

• Changeset
• Docs: TODO, waiting for feedback on naming first and data
• RFC: TODO, waiting for feedback on naming first and data

[changeset-bot]

🦋 Changeset detected

Latest commit: 5e01c12

The changes in this PR will be included in the next version bump.

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[codspeed-hq]

CodSpeed Performance Report

Merging #13826 will not alter performance

_{Comparing feat/fonts-granular-preload (5e01c12) with main (866285a)}

Summary

✅ 6 untouched benchmarks

[pkg-pr-new]

astro

npm i https://pkg.pr.new/astro@13826

@astrojs/cloudflare

npm i https://pkg.pr.new/@astrojs/cloudflare@13826

@astrojs/netlify

npm i https://pkg.pr.new/@astrojs/netlify@13826

@astrojs/node

npm i https://pkg.pr.new/@astrojs/node@13826

@astrojs/vercel

npm i https://pkg.pr.new/@astrojs/vercel@13826

commit: 5e01c12

[jonasgeiler]

Seems to be working perfectly for me! Thanks a lot for working on this!