moonraker: add useGpiod

nixos/modules/services/misc/moonraker.nix

@@ -1,8 +1,8 @@
 { config, lib, options, pkgs, ... }:
 with lib;
 let
-  pkg = pkgs.moonraker;
   cfg = config.services.moonraker;
+  pkg = cfg.package;
   opt = options.services.moonraker;
   format = pkgs.formats.ini {
     # https://github.com/NixOS/nixpkgs/pull/121613#issuecomment-885241996
@@ -18,6 +18,14 @@ in {
     services.moonraker = {
       enable = mkEnableOption (lib.mdDoc "Moonraker, an API web server for Klipper");
 
+      package = mkOption {
+        type = with types; nullOr package;
+        default = pkgs.moonraker;
+        defaultText = literalExpression "pkgs.moonraker";
+        example = literalExpression "pkgs.moonraker.override { useGpiod = true; }";
+        description = lib.mdDoc "Moonraker package to use";
+      };
+
       klipperSocket = mkOption {
         type = types.path;
         default = config.services.klipper.apiSocket;

pkgs/servers/moonraker/default.nix

@@ -1,23 +1,26 @@
-{ lib, stdenvNoCC, fetchFromGitHub, python3, makeWrapper, unstableGitUpdater, nixosTests }:
+{ lib, stdenvNoCC, fetchFromGitHub, python3, makeWrapper, unstableGitUpdater, nixosTests, useGpiod ? false }:
 
 let
-  pythonEnv = python3.withPackages (packages: with packages; [
-    tornado
-    pyserial-asyncio
-    pillow
-    lmdb
-    streaming-form-data
-    distro
-    inotify-simple
-    libnacl
-    paho-mqtt
-    pycurl
-    zeroconf
-    preprocess-cancellation
-    jinja2
-    dbus-next
-    apprise
-  ]);
+  pythonEnv = python3.withPackages (packages:
+    with packages; [
+      tornado
+      pyserial-asyncio
+      pillow
+      lmdb
+      streaming-form-data
+      distro
+      inotify-simple
+      libnacl
+      paho-mqtt
+      pycurl
+      zeroconf
+      preprocess-cancellation
+      jinja2
+      dbus-next
+      apprise
+    ]
+    ++ (lib.optionals useGpiod [ libgpiod ])
+  );
 in stdenvNoCC.mkDerivation rec {
   pname = "moonraker";
   version = "unstable-2022-11-18";