nixos/limine: show config.system.nixos.distroName value in menu

Previously the entry section always shows "NixOS".
Now it would show the value configured in config.system.nixos.distroName.

nixos/modules/system/boot/loader/limine/limine-install.py

@@ -492,12 +492,12 @@ def install_bootloader() -> None:
     config_file += option_from_config('term_margin_gradient', ['style', 'graphicalTerminal', 'marginGradient'])
 
     config_file += textwrap.dedent('''
-        # NixOS boot entries start here
+        # @distroName@ boot entries start here
     ''')
 
     for (profile, gens) in profiles:
         group_name = 'default profile' if profile == 'system' else f"profile '{profile}'"
-        config_file += f'/+NixOS {group_name}\n'
+        config_file += f'/+@distroName@ {group_name}\n'
 
         isFirst = True
 
@@ -506,7 +506,7 @@ def install_bootloader() -> None:
             isFirst = False
 
     config_file_path = os.path.join(limine_install_dir, 'limine.conf')
-    config_file += '\n# NixOS boot entries end here\n\n'
+    config_file += '\n# @distroName@ boot entries end here\n\n'
 
     config_file += str(config('extraEntries'))
 

nixos/modules/system/boot/loader/limine/limine.nix

@@ -432,6 +432,7 @@ in
           replacements = {
             python3 = pkgs.python3.withPackages (python-packages: [ python-packages.psutil ]);
             configPath = limineInstallConfig;
+            inherit (config.system.nixos) distroName;
           };
         };
       };

nixos/tests/limine/default.nix

@@ -8,4 +8,5 @@
   secureBoot = runTest ./secure-boot.nix;
   specialisations = runTest ./specialisations.nix;
   uefi = runTest ./uefi.nix;
+  distroName = runTest ./distroName.nix;
 }

nixos/tests/limine/distroName.nix

@@ -0,0 +1,30 @@
+{ pkgs, ... }:
+{
+  name = "distroName";
+  meta = {
+    inherit (pkgs.limine.meta) maintainers;
+  };
+
+  nodes.machine =
+    { ... }:
+    {
+      virtualisation.useBootLoader = true;
+      virtualisation.useEFIBoot = true;
+
+      boot.loader.efi.canTouchEfiVariables = true;
+      boot.loader.limine.enable = true;
+      boot.loader.limine.efiSupport = true;
+      boot.loader.timeout = 0;
+
+      system.nixos.distroName = "BestDistroEver";
+    };
+
+  testScript = /* python */ ''
+    machine.start()
+    with subtest('Machine boots correctly'):
+      machine.wait_for_unit('multi-user.target')
+
+    machine.succeed("grep \"BestDistroEver\" /boot/limine/limine.conf")
+    machine.fail("grep \"NixOS\" /boot/limine/limine.conf")
+  '';
+}