Merge pull request #254 from horriblename/fix-bad-import

Add rename warnings for nvimTree.setupOpts.*

lib/config.nix

@@ -1,6 +1,9 @@
 {lib}: let
   inherit (lib.options) mkOption;
   inherit (lib.types) bool;
+  inherit (lib.modules) mkRenamedOptionModule;
+  inherit (lib.attrsets) mapAttrsToList;
+  inherit (lib.lists) flatten;
 in {
   mkBool = value: description:
     mkOption {
@@ -8,4 +11,55 @@ in {
       default = value;
       inherit description;
     };
+
+  /*
+  Generates a list of mkRenamedOptionModule, from a mapping of the old name to
+  the new name. Nested options can optionally supply a "_name" to indicate its
+  new name.
+
+  # Example
+
+  ```nix
+  batchRenameOptions ["nvimTree"] ["nvimTree" "setupOpts"] {
+      disableNetrw = "disable_netrw";
+      nestedOption = {
+        _name = "nested_option";
+        somethingElse = "something_else";
+      };
+  }
+  ```
+
+  The above code is equivalent to this:
+
+  ```nix
+  [
+    (
+      mkRenamedOptionModule
+        ["nvimTree" "disableNetrw"]
+        ["nvimTree" "setupOpts" "disable_netrw"]
+    )
+    (
+      mkRenamedOptionModule
+        ["nvimTree" "nestedOption" "somethingElse"]
+        ["nvimTree" "setupOpts" "nested_option" "something_else"]
+    )
+  ]
+  ```
+  */
+  batchRenameOptions = oldBasePath: newBasePath: mappings: let
+    genSetupOptRenames = oldSubpath: newSubpath: table:
+      mapAttrsToList (
+        oldName: newNameOrNestedOpts:
+          if builtins.isAttrs newNameOrNestedOpts
+          then
+            genSetupOptRenames (oldSubpath ++ [oldName]) (newSubpath ++ [newNameOrNestedOpts._name or oldName])
+            (builtins.removeAttrs newNameOrNestedOpts ["_name"])
+          else
+            mkRenamedOptionModule
+            (oldBasePath ++ oldSubpath ++ [oldName])
+            (newBasePath ++ newSubpath ++ [newNameOrNestedOpts])
+      )
+      table;
+  in
+    flatten (genSetupOptRenames [] [] mappings);
 }