pr-release-preview.yml

name: PR Release Preview

on:
  pull_request:
    types: [opened, synchronize, reopened, edited]

jobs:
  release-preview:
    name: Release preview
    runs-on: ubuntu-latest
    permissions:
      contents: read
    steps:
      - uses: actions/checkout@v6
      - uses: ./.github/actions/setup

      - name: Validate PR title
        id: commitlint
        run: |
          if echo "${{ github.event.pull_request.title }}" | npx --no-install commitlint > commitlint.err 2>&1; then
            echo "ok=true" >> "$GITHUB_OUTPUT"
          else
            echo "ok=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Generate release preview comment
        id: preview
        if: always()
        env:
          PR_TITLE: ${{ github.event.pull_request.title }}
          BASE_REF: ${{ github.base_ref }}
          PR_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
          COMMITLINT_OK: ${{ steps.commitlint.outputs.ok == 'true' && '1' || '0' }}
        run: npx ts-node --transpile-only -O '{"module":"commonjs"}' tools/ci/pr-release-preview.ts

      - name: Upload release preview comment
        if: always() && steps.preview.outcome != 'skipped'
        uses: actions/upload-artifact@v7
        with:
          name: release-preview-comment
          path: comment.md
          retention-days: 1

      - name: Enforce valid PR title
        if: steps.commitlint.outputs.ok != 'true'
        run: |
          echo "::error::PR title must follow Conventional Commits (see commitlint output in the PR comment)."
          exit 1

      - name: Enforce release preview succeeded
        if: steps.preview.outcome == 'failure'
        run: exit 1