chore: read the Svelte config via @sveltejs/load-config

[Nic-Polumeyv]

packages/package/src/config.js has its own resolveConfig + find-plugin loader, with import_peer and resolve_peer copied alongside it. It resolves under 'build', so reading the config runs the full sync.all and needs src/app.html, and it makes vite mandatory even for a library that only has a svelte.config.js.

Use @sveltejs/load-config instead. It resolves under 'serve' and falls back to svelte.config.js when the Vite config has no Svelte plugin.

[pkg-svelte-dev]

Install the latest version of @sveltejs/kit from 2f4098f:

pnpm add https://pkg.svelte.dev/@sveltejs/kit/c/2f4098f61d07e1235c73e30dd501ac0a58e74992

Open in pkg.svelte.dev: https://pkg.svelte.dev/repos/kit/pr/17039

[changeset-bot]

🦋 Changeset detected

Latest commit: 2f4098f

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

This PR includes changesets to release 1 package

Name	Type
@sveltejs/package	Patch

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

[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-kit-17039-svelte.vercel.app/

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: QUIET

Plan: Advanced

Run ID: 5c9884d6-a925-4802-a9cf-a999d1326690

📥 Commits

Reviewing files that changed from the base of the PR and between ee2f55b and 2f4098f.

⛔ Files ignored due to path filters (1)

• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml

📒 Files selected for processing (4)

• .changeset/package-load-config.md
• packages/package/package.json
• packages/package/src/config.js
• packages/package/test/fixtures/svelte-kit/src/app.html

🔗 Linked repositories identified

CodeRabbit considers these linked repositories for cross-repo context during reviews:

• sveltejs/vite-plugin-svelte (manual)
• vitejs/vite (manual)
• sveltejs/svelte (manual)

💤 Files with no reviewable changes (1)

• packages/package/test/fixtures/svelte-kit/src/app.html

Included review availability: Your plan provides up to 10 included reviews per hour; 7 remain after this review.

---

📝 Walkthrough

Walkthrough

@sveltejs/package now uses @sveltejs/load-config to load Svelte configuration from the current working directory. Loader errors are thrown, and an empty configuration is returned when no configuration is found. The previous Vite production configuration loading and SvelteKit plugin lookup were removed. The package now declares the loader as a runtime dependency and includes a Changesets patch release entry.

Merge Risk: ⚪ Minimal · up to 2f409

@sveltejs/package now loads Svelte configuration through @sveltejs/load-config, supports projects with only svelte.config.js, and no concrete current-head merge-blocking risk remains.

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title uses the required chore: prefix and accurately describes the change to read the Svelte configuration via @sveltejs/load-config.
Backward Compatibility Impact Disclosure	✅ Passed	No breaking public interface is introduced. config.js retains both exported functions, and the package exports map is unchanged. The supported configuration fields in types.d.ts remain unchanged…

---

_{Comment @coderabbitai help to get the list of available commands.}