build-and-deploy.yml

name: Build Jekyll site
on:
 push:
   branches: ["main"]
permissions:
  contents: read
  pages: write
  id-token: write
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with: 
          fetch-depth: 0
      - name: Setup Ruby
        uses: ruby/setup-ruby@v1
        with:
          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
          cache-version: 0
      - name: Setup Pages
        id: pages
        uses: actions/configure-pages@v4
      - name: Build with Jekyll
        # Outputs to the './_site' directory by default
        run: bundle exec jekyll build --baseurl "${{ steps.pages.outputs.base_path }}"
        env:
          JEKYLL_ENV: production
      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
  deploy:
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}