name: "Build Nixpkgs manual"

on:
  pull_request_target:
    paths:
      - 'doc/**'

jobs:
  nixpkgs:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: cachix/install-nix-action@v11
      - uses: cachix/cachix-action@v6
        with:
          name: nixpkgs-ci
          signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
      - name: Building Nixpkgs manual
        run: nix-build pkgs/top-level/release.nix -A manual