feat(vercel): single entrypoint

[ematipico]

Changes

Closes PLT-2550

This PR refactors the code of the Vercel adapter, and it now exports one single entry point for both static and serverless adapter.

The new code is inside index.ts. The code that differs between the new adapters is conditionally applied using if (buidOutput === "server") all over.

Also, I took the opportunity to make the creation of the config.json a bit more readable with a classic if/else, all those big ternaries were a bit hard to handle.

Testing

The current tests should pass.

I only updated one single test, where Astro was throwing an error for an incorrect configuration.

Docs

withastro/docs#9755

[changeset-bot]

🦋 Changeset detected

Latest commit: dd0ada5

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

This PR includes changesets to release 19 packages

Name	Type
@astrojs/vercel	Minor
@test/astro-vercel-basic	Patch
@test/astro-vercel-image	Patch
@test/vercel-isr	Patch
@test/vercel-max-duration	Patch
@test/vercel-edge-middleware-with-edge-file	Patch
@test/vercel-edge-middleware-without-edge-file	Patch
@test/astro-vercel-no-output	Patch
@test/astro-vercel-prerendered-error-pages	Patch
@test/astro-vercel-redirects-serverless	Patch
@test/astro-vercel-redirects	Patch
@test/vercel-server-islands	Patch
@test/astro-vercel-serverless-prerender	Patch
@test/astro-vercel-serverless-with-dynamic-routes	Patch
@test/astro-vercel-static-assets	Patch
@test/astro-vercel-static	Patch
@test/vercel-streaming	Patch
@test/astro-vercel-with-web-analytics-enabled-output-as-static	Patch
vercel-hosted-astro-project	Patch

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[florian-lefebvre]

Does this require changes in astro add?

[ematipico]

Does this require changes in astro add?

Good call. Yes, it will. I will make a PR

[sarah11918]

Looks good! I was just wondering whether a word like "Replaces" or "combines" might be a be a more user-friendly word re: guiding them towards the changes they'll have to make (e.g. a find/replace)

[bluwy]

The change works for me 👍 We can also do type casting since that's easier if you want, but runtime checks also looks good. I noticed the code already had type casting like here:

adapters/packages/vercel/src/image/shared.ts

Lines 7 to 8 in 16d6883

	// Cast is necessary here because Vercel's types are slightly different from ours regarding allowed protocols. Behavior should be the same, however.
	remotePatterns: (astroImageConfig.remotePatterns as VercelImageConfig['remotePatterns']) ?? [],