mobile-nixos/lib/release-tools.nix

{
  # This should *never* rely on lib or pkgs.
  all-devices =
    builtins.filter
    (d: builtins.pathExists (../. + "/devices/${d}/default.nix"))
    (builtins.attrNames (builtins.readDir ../devices))
  ;

  # These can rely freely on lib, avoir depending on pkgs.
  withPkgs = pkgs:
    let
      inherit (pkgs) lib;
    in
    rec {
      specialConfig = {name, buildingForSystem, system, config ? {}}: {
        special = true;
        inherit name;
        config = lib.mkMerge [
          config
          {
            mobile.device.info = {};
            mobile.system.type = "none";
            mobile.hardware.soc = {
              x86_64-linux = "generic-x86_64";
              aarch64-linux = "generic-aarch64";
              armv7l-linux = "generic-armv7l";
            }.${buildingForSystem};
            nixpkgs.localSystem = knownSystems.${system};
          }
        ];
      };

      # Shortcuts from a simple system name to the structure required for
      # localSystem and crossSystem
      knownSystems = {
        x86_64-linux  = lib.systems.examples.gnu64;
        aarch64-linux = lib.systems.examples.aarch64-multiplatform;
        armv7l-linux  = lib.systems.examples.armv7l-hf-multiplatform;
      };

      # Given a device compatible with `default.nix`, eval.
      evalFor = evalWithConfiguration {};
      evalWithConfiguration = additionalConfiguration: device:
        import ../. { inherit device additionalConfiguration; }
      ;
    };
}