tac/.github/workflows/preview.yml at main · openmainframeproject/tac · GitHub

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name: Jekyll PR Previews

on:
  pull_request:

permissions:
  contents: read
  pages: write
  id-token: write
  pull-requests: write

jobs:
  build:
    runs-on: ubuntu-latest
    outputs:
      pr_path: ${{ steps.setpath.outputs.pr_path }}

    steps:
      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Setup Ruby
        uses: ruby/setup-ruby@97ecb7b512899eb71ab1bf2310a624c6f1589ac6 # v1.308.0
        with:
          ruby-version: "3.2"
          bundler-cache: true

      # Determine output folder: main → root, PR → /pr-<number>/
      - name: Determine output path
        id: setpath
        run: |
          echo "pr_path=pr-${{ github.event.pull_request.number }}" >> $GITHUB_OUTPUT

      # Build Jekyll
      - name: Build Jekyll
        run: |
          DEST="./_site/${{ steps.setpath.outputs.pr_path }}"
          mkdir -p "$DEST"
          bundle exec jekyll build --destination "$DEST" --trace --baseurl "/pr-${{ github.event.pull_request.number }}/"

      # Upload the artifact for deployment
      - name: Upload Pages Artifact
        uses: actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9 # v5.0.0
        with:
          path: _site

  deploy:
    runs-on: ubuntu-latest
    needs: build

    # Deploy for both PRs and main
    steps:
      - name: Deploy to GitHub Pages
        id: deploy
        uses: actions/deploy-pages@cd2ce8fcbc39b97be8ca5fce6e763baed58fa128 # v5.0.0

      # Comment PR preview URL
      - name: Comment PR Preview URL
        uses: peter-evans/create-or-update-comment@e8674b075228eee787fea43ef493e45ece1004c9 # v5.0.0
        with:
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            🔍 **Unique Jekyll PR Preview Ready**

            Preview URL:
            **https://${{ github.repository_owner }}.github.io/${{ github.event.repository.name }}/pr-${{ github.event.pull_request.number }}/**