pages.yml

name: Deploy demo site to Pages

# The demo pages load dist/retro.min.css, and dist/ is gitignored — so serving
# the branch directly (the previous "deploy from branch" setup) published the
# HTML with no CSS or JS behind it. This builds first and deploys the result,
# so the live site always matches src/ without committing build output.
on:
  push:
    branches: [main]
  workflow_dispatch:

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

# Let an in-flight deploy finish rather than cancelling it mid-publish.
concurrency:
  group: pages
  cancel-in-progress: false

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5

      - uses: actions/setup-node@v5
        with:
          node-version: '22'

      - name: Install dependencies
        run: npm ci

      - name: Build CSS and JS
        run: npm run build

      - name: Verify the site has its assets
        run: |
          for f in dist/retro.min.css dist/retro.js index.html documentation.html; do
            test -s "$f" || { echo "missing or empty: $f"; exit 1; }
          done
          echo "ok — dist/ built and demo pages present"

      - uses: actions/configure-pages@v6

      - uses: actions/upload-pages-artifact@v5
        with:
          path: .

  deploy:
    needs: build
    runs-on: ubuntu-latest
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    steps:
      - id: deployment
        uses: actions/deploy-pages@v5