# Reference: https://github.com/ryoppippi/dotfiles/blob/main/.github/workflows/nix-build.yaml
name: Check NixOS configurations
description: Build every NixOS configuration and the Registry tests
runs:
  using: composite
  steps:
    - name: Build every NixOS configuration
      shell: bash
      run: |
        set -euo pipefail

        mapfile -t hosts < <(
          nix eval --raw .#nixosConfigurations \
            --apply 'configs: builtins.concatStringsSep "\n" (builtins.attrNames configs)'
        )

        installables=(.#checks.x86_64-linux.registry)
        for host in "${hosts[@]}"; do
          installables+=(".#nixosConfigurations.${host}.config.system.build.toplevel")
        done

        nix build \
          --keep-going \
          --no-link \
          --print-build-logs \
          --show-trace \
          "${installables[@]}"