dotfiles/nixos/modules/efi-grub.nix

# SPDX-FileCopyrightText: 2022 Richard Brežák <richard@brezak.sk>
#
# SPDX-License-Identifier: LGPL-3.0-or-later
{
  config,
  lib,
  ...
}:
with lib; let
  cfg = config.magic_rb.grub;
in {
  options.magic_rb.grub = with lib; {
    enable = mkEnableOption "GRUB preconfigured for my setup style";
    efi = mkOption {
      type = types.submodule {
        options.enable = mkEnableOption "EFI support";
      };
      default = {};
    };

    devices = mkOption {
      description = "GRUB devices for legacy";
      default = [];
      type = with types; listOf string;
    };
  };

  config = {
    boot.loader = mkIf cfg.enable {
      systemd-boot.enable = false;
      efi.canTouchEfiVariables = cfg.efi.enable;
      efi.efiSysMountPoint = "/boot/EFI";

      grub = {
        enable = true;
        efiSupport = cfg.efi.enable;
        version = 2;
        devices =
          if cfg.efi.enable
          then ["nodev"]
          else cfg.devices;
      };
    };
  };
}