build-and-deploy-pages.yml

name: Build and deploy GitHub Pages

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Setup Ruby
        uses: ruby/setup-ruby@v1
        with:
          bundler-cache: true

      - name: Build site
        run: |
          bundle exec jekyll build

      - name: Upload GH Pages Artifact
        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
        uses: actions/upload-pages-artifact@v2
        with:
          path: ./_site

  deploy:
    runs-on: ubuntu-latest
    if: ${{ github.repository == 'py-why/py-why.github.io' && github.event_name == 'push' && github.ref == 'refs/heads/main' }}
    needs: build

    # Grant GITHUB_TOKEN the permissions required to make a Pages deployment
    permissions:
      pages: write      # to deploy to Pages
      id-token: write   # to verify the deployment originates from an appropriate source

    # Deploy to the github-pages environment
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}

    steps:
      - name: Deploy
        uses: actions/deploy-pages@v3