name: Pages

on:
  push:
    branches: [main]
    paths:
      - "site/**"
      - ".github/workflows/pages.yml"
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: pages
  cancel-in-progress: false

jobs:
  build:
    name: Build site
    # GitHub only: the Gitea origin also runs .github/workflows but has no Pages; deploy skips with this job.
    if: github.server_url == 'https://github.com'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
      - uses: actions/configure-pages@v6
      - name: Stage site without source notes
        run: rsync -a --exclude='*.md' site/ _site/
      - uses: actions/upload-pages-artifact@v5
        with:
          path: _site/

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