ci: improve actions workflows

[luc122c]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

GitHub Actions announced the parallel keyword yesterday — syntactic sugar that groups independent steps to run concurrently within a single job, then waits for all of them before continuing. See the workflow syntax docs for the full reference.

Workflow	Job	Parallelised steps
ci.yml	tests-checks	pnpm typecheck + pnpm vitest run test/unit + pnpm vitest run test/minimal + pnpm vitest run test/vite
ci.yml	tests-rollup	pnpm vitest run test/examples + pnpm vitest run test/presets
ci.yml	tests-rolldown	pnpm vitest run test/examples + pnpm vitest run test/presets
npm-publish.yml	publish	pnpm lint + pnpm typecheck + pnpm test:rolldown

I've also scoped the nightly publish job to only run in this repo, not forks.

Related:

• chore: improve actions #2 nuxt/.github#42
• ci: use parallel keyword for concurrent workflow steps nuxt/nuxt#35448

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[vercel]

@luc122c is attempting to deploy a commit to the Nitro Team on Vercel.

A member of the Team first needs to authorize it.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 28687d12-1686-4bf8-835d-f16d6d67c46e

📥 Commits

Reviewing files that changed from the base of the PR and between 83acc44 and 58335f8.

📒 Files selected for processing (2)

• .github/workflows/ci.yml
• .github/workflows/npm-publish.yml

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📝 Walkthrough

Walkthrough

CI workflows now run selected typecheck and vitest commands in parallel, the nightly publish job is limited to push events on main in nitrojs/nitro, and the npm publish workflow runs lint, typecheck, and rolldown tests in parallel.

Changes

Workflow updates

Layer / File(s)	Summary
Parallel test jobs .github/workflows/ci.yml	tests-checks, tests-rollup, and tests-rolldown move their typecheck and vitest commands into parallel blocks.
Nightly publish gate .github/workflows/ci.yml	publish-nitro-nightly now requires a push to refs/heads/main in nitrojs/nitro.
npm publish parallel checks .github/workflows/npm-publish.yml	pnpm lint, pnpm typecheck, and pnpm test:rolldown now run in a parallel group before publish.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• nitrojs/nitro#4278: Updates the same publish-nitro-nightly trigger condition in .github/workflows/ci.yml.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title follows conventional commits and accurately reflects the workflow optimization changes.
Description check	✅ Passed	The description clearly matches the CI workflow changes and the nightly publish restriction.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/nitro@4388

commit: 58335f8