lib/deprecation: add processRenameOptions

Supports a function that can be used to specify the destination path for
a list of options.

Author: khaneliman

lib/deprecation.nix

@@ -46,6 +46,21 @@ rec {
         '';
     };
 
+  processRenameOptions =
+    options: oldPath: newPath:
+    (map (
+      option:
+      let
+        result =
+          let
+            optionPath = lib.toList option;
+            optionPathSnakeCase = map lib.nixvim.toSnakeCase optionPath;
+          in
+          lib.mkRenamedOptionModule (oldPath ++ optionPath) (newPath ++ optionPathSnakeCase);
+      in
+      result
+    ) options);
+
   # A clone of types.coercedTo, but it prints a warning when oldType is used.
   transitionType =
     oldType: coerceFn: newType:

lib/helpers.nix

@@ -38,7 +38,12 @@ let
       byteCompileLuaDrv
       ;
 
-    inherit (helpers.deprecation) getOptionRecursive mkDeprecatedSubOptionModule transitionType;
+    inherit (helpers.deprecation)
+      getOptionRecursive
+      mkDeprecatedSubOptionModule
+      processRenameOptions
+      transitionType
+      ;
 
     inherit (helpers.options)
       defaultNullOpts