name: Deploy Documentation

on:
  workflow_dispatch:
  push:
    branches: [main]
    paths:
      # This workflow
      - ./.github/workflows/deploy.yml
      # Docs generation code
      - ./docs/**
      # Module options
      - ./options.nix
      # Nix files
      - ./flake.lock
      - ./flake.nix

jobs:
  build-website:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - uses: DeterminateSystems/nix-installer-action@v9
    - uses: DeterminateSystems/magic-nix-cache-action@v2
    - name: Build documentation
      run: nix build .#doc --print-build-logs
    - name: Upload artifact
      uses: actions/upload-pages-artifact@v1
      with:
        path: ./result
  deploy:
    needs: build-website
    runs-on: ubuntu-latest
    permissions:
      pages: write
      id-token: write
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v2