name: Build and deploy documentation

on:
  push:
    # Runs on pushes targeting the default branch
    branches: [main]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
permissions:
  contents: read
  pages: write
  id-token: write

# Allow one concurrent deployment
concurrency:
  group: "pages"
  cancel-in-progress: true

jobs:
  deploy:
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    runs-on: ubuntu-latest
    timeout-minutes: 40
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup pages
        uses: actions/configure-pages@v3

      - name: Install nix
        uses: cachix/install-nix-action@v22
        with:
          nix_path: nixpkgs=channel:nixos-unstable

      - name: Configure cachix
        uses: cachix/cachix-action@v13
        with:
          name: nix-community
          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'

      - run: nix build .#docs --show-trace

      - name: Upload artifact
        uses: actions/upload-pages-artifact@v2
        with:
          path: "result/share/doc"

      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v2