build-pr.yml

name: Build PR

# read-only repo token
# no access to secrets

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

jobs:
  build:
    runs-on: ubuntu-latest

    env:
      PR: ${{ github.event.number }}
      HUGO_VERSION: 0.111.3

    steps:
      - name: Install Hugo CLI
        run: |
          wget -O ${{ runner.temp }}/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb \
          && sudo dpkg -i ${{ runner.temp }}/hugo.deb

      - name: Install Dart Sass Embedded
        run: sudo snap install dart-sass-embedded

      - name: Checkout
        uses: actions/checkout@v3
        with:
          submodules: recursive

      - name: Setup Pages
        id: pages
        uses: actions/configure-pages@v3

      - name: Install Node.js dependencies
        run: '[[ -f package-lock.json || -f npm-shrinkwrap.json ]] && npm ci || true'

      - name: Build with Hugo
        env:
          # For maximum backward compatibility with Hugo modules
          HUGO_ENVIRONMENT: production
          HUGO_ENV: production
        run: |
          hugo \
            --minify \
            --baseURL "${{ steps.pages.outputs.base_url }}/pr-preview/pr-${{ env.PR }}/"

      - name: Adding PR metadata
        run: echo "${{ env.PR }}" > public/pull-request.info

      - uses: actions/upload-artifact@v2
        with:
          name: pr
          path: public/