Added assertions

lib/option-warnings.nix

@@ -1,31 +1,33 @@
 { lib, ... }:
 with lib;
 
-rec {
+{
+  # This should be used instead of mkRemovedOptionModule, when the option still works,
+  #   but is just deprecated and should be changed now and for the future
   mkDeprecatedOption =
     { option # an array of the path to the option
     , alternative ? null
     , message ? null
     , visible ? false
-    , ...
     }:
     { options, ... }:
     let
       fromOpt = getAttrFromPath option options;
-      fullMessage = "The option `${showOption option}` has been deprecated." +
+      fullMessage = "The option `${showOption option}` has been deprecated, but might still work." +
         (optionalString (alternative != null) " You may want to use `${showOption alternative}` instead.") +
         (optionalString (message != null) " Message: ${message}");
     in
     {
-      options = setAttrByPath option
-        (mkOption {
-          inherit visible;
-          description = fullMessage;
-        });
       config = mkIf (fromOpt.isDefined) {
         warnings = [
           ("Nixvim: ${fullMessage}")
         ];
       };
     };
+
+  # For removed options, we can just use nixpkgs mkRemovedOptionModule, which is already in lib
+  mkRemovedOption = mkRemovedOptionModule;
+
+  # For renamed options, we can also use the function from nixpkgs
+  mkRenamedOption = mkRenamedOptionModule; # use the function from nixpkgs
 }

modules/warnings.nix

@@ -8,5 +8,10 @@ with lib;
       visible = false;
       default = [];
     };
+    assertions = mkOption {
+      type = types.listOf types.attrs; # Not sure what the correct type is here
+      visible = false;
+      default = [];
+    };
   };
 }

wrappers/darwin.nix

@@ -11,13 +11,19 @@ in
     programs.nixvim = mkOption {
       type = types.submodule ((modules pkgs) ++ [{
         options.enable = mkEnableOption "nixvim";
-	config.wrapRc = mkForce true;
+        config.wrapRc = mkForce true;
       }]);
     };
     nixvim.helpers = shared.helpers;
   };
 
-  config = mkIf cfg.enable {
-    environment.systemPackages = [ cfg.finalPackage ];
-  };
+  config = mkIf cfg.enable mkMerge [
+    {
+      environment.systemPackages = [ cfg.finalPackage ];
+    }
+    {
+      warnings = cfg.warnings;
+      assertions = cfg.assertions;
+    }
+  ];
 }

wrappers/hm.nix

@@ -24,6 +24,7 @@ in
       })
       ({
         warnings = cfg.warnings;
+        assertions = cfg.assertions;
       })
     ]);
 }

wrappers/nixos.nix

@@ -25,6 +25,7 @@ in
       })
       ({
         warnings = cfg.warnings;
+        assertions = cfg.assertions;
       })
     ]);
 }