name: Check NixOS configurations

on:
  pull_request:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  eval-hosts:
    runs-on: ubuntu-latest
    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@v19

      - name: Evaluate all NixOS hosts
        run: |
          set -euo pipefail
          for host in nixos docker kuma server nix-cache nix-minimal; do
            echo "Evaluating ${host}"
            nix --extra-experimental-features 'nix-command flakes' eval \
              ".#nixosConfigurations.${host}.config.system.build.toplevel.drvPath" --raw
          done