website-cd.yml

name: Website Continuous Deployment

on:
  push:
    branches:
      - main
  pull_request: {}

concurrency:
  # Group concurrency on workflow, then:
  # - Is merge run? Group `push` events
  # - Is pull request? Group `pull_request` events
  group:
    ${{ github.workflow }}-${{ github.event_name == 'push' && github.base_ref ||
    github.head_ref }}
  # Run merge runs in sequence. Cancel in progress pull request runs.
  cancel-in-progress: ${{ github.event_name != 'push' }}

env:
  NODE_OPTIONS: --max-old-space-size=6144
  WEBSITE_PACKAGE_NAME: website
  WEBSITE_PACKAGE_PATH: ./build

jobs:
  build:
    name: Build and verify website
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3
      - name: Set up Node.js
        uses: actions/setup-node@v3
        with:
          # cache: yarn
          node-version-file: .nvmrc
      - name: Install package dependencies
        run: yarn install --immutable

      - name: Build website
        run: yarn build

      - name: Scan for broken links
        run: yarn dlx start-server-and-test serve 3000 'yarn broken-link-checker | (! grep ─BROKEN─)'

      - name: Upload website package
        uses: actions/upload-artifact@v3
        with:
          name: ${{ env.WEBSITE_PACKAGE_NAME }}
          path: ${{ env.WEBSITE_PACKAGE_PATH }}
          if-no-files-found: error

  deploy:
    name: Deploy website to GitHub Pages
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    needs:
      - build
    runs-on: ubuntu-latest

    steps:
      # Necessary for JamesIves/github-pages-deploy-action
      - uses: actions/checkout@v3

      - name: Download website package
        uses: actions/download-artifact@v3
        with:
          name: ${{ env.WEBSITE_PACKAGE_NAME }}
          path: ${{ env.WEBSITE_PACKAGE_PATH }}

      - name: Deploy website to GitHub Pages
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ${{ env.WEBSITE_PACKAGE_PATH }}