trivionomicon/doctrine: have mk-module define config and options as separate modules

doctrine/lib/mk-module.nix

@@ -13,26 +13,29 @@
   namespace ? doctrine.namespace,
   passthru ? {},
 }: let
-  optionsSet = import options (passthru
-    // {
-      inherit config lib pkgs cfg name doctrine;
-    });
+  patchArgs = args: args // passthru // {inherit cfg name doctrine;};
 
-  configSet = import configFiles.${namespace} (passthru
-    // {
-      inherit config lib pkgs doctrine cfg;
-    });
+  optionsSet = args: import options (patchArgs args);
+  configSet = args: import configFiles.${namespace} (patchArgs args);
 
   configFiles = lib.filterAttrs (k: v: v != null) {
     inherit sys hm;
   };
 
   cfg = config.${prefix}.${name};
+  hasConfig = configFiles ? ${namespace};
 in {
-  config =
-    lib.optionalAttrs (configFiles ? ${namespace})
-    (lib.mkIf cfg.enable (lib.mkMerge [
-      configSet
+  imports = [
+    (args @ {
+      config,
+      modulesPath ? null,
+      lib,
+      pkgs,
+      ...
+    }:
+      lib.optionalAttrs hasConfig {
+        config = lib.mkIf cfg.enable (lib.mkMerge [
+          (configSet args)
           {
             assertions =
               map (dependency: {
@@ -41,11 +44,25 @@ in {
               })
               requires;
           }
-    ]));
+        ]);
+      })
 
+    (args @ {
+      config,
+      modulesPath ? null,
+      lib,
+      pkgs,
+      ...
+    }: let
+      hasOptions = options != null && optionsForArgs ? ${namespace};
+      optionsForArgs = optionsSet args;
+    in
+      lib.optionalAttrs (hasOptions || hasConfig) {
         options.${prefix}.${name} =
-    lib.optionalAttrs (options != null && optionsSet ? ${namespace}) optionsSet.${namespace}
+          lib.optionalAttrs hasOptions optionsForArgs.${namespace}
           // {
             enable = lib.mkEnableOption name;
           };
+      })
+  ];
 }