refactoring

lib/default.nix

@@ -1,6 +1,6 @@
 inputs:
 let
-  inherit (inputs) nixpkgs self zig2nix;
+  inherit (inputs) nixpkgs self;
   lib = nixpkgs.lib.extend (import ./extended.nix);
 
   inherit (builtins)

lib/extended.nix

@@ -1,5 +1,6 @@
 final: prev:
 let
+  inherit (builtins) listToAttrs substring;
   inherit (final)
     concatStringsSep
     hasSuffix
@@ -8,9 +9,8 @@ let
     mkOption
     types
     ;
-  inherit (builtins) listToAttrs substring;
 in
-rec {
+let
   enabled = {
     enable = true;
   };
@@ -37,13 +37,13 @@ rec {
       }) attrs
     );
 
-  isNixFile = path: hasSuffix ".nix" path;
   mkIfIn = name: list: prev.mkIf (builtins.elem name list);
 
   mkOizysModule = config: attr: content: {
     options.oizys.${attr}.enable = mkEnableOption "enable ${attr} support";
     config = mkIf config.oizys.${attr}.enable content;
   };
+
   mkDefaultOizysModule = config: attr: content: {
     options.oizys.${attr}.enable = mkOption {
       default = true;
@@ -61,4 +61,19 @@ rec {
       (substring 4 2 longDate)
       (substring 6 2 longDate)
     ]);
+  isNixFile = path: hasSuffix ".nix" path;
+
+in
+{
+  inherit
+    enabled
+    disabled
+    enableAttrs
+    disableAttrs
+    mkOizysModule
+    mkDefaultOizysModule
+    mkDate
+    isNixFile
+    mkIfIn
+    ;
 }

modules/languages/default.nix

@@ -1,18 +1,20 @@
 { lib, ... }:
 let
-  inherit (builtins) filter;
   inherit (lib)
-    isNixFile
     mkOption
     types
+    isNixFile
     literalExpression
     mdDoc
     ;
   inherit (lib.filesystem) listFilesRecursive;
+  inherit (builtins) filter;
+
+  listNixFilesRecursive =
+    dir: filter (f: (f != ./default.nix) && (isNixFile f)) (listFilesRecursive dir);
 in
 {
-  imports = filter (f: (f != ./default.nix) && (isNixFile f)) (listFilesRecursive ./.);
-
+  imports = listNixFilesRecursive ./.;
   options.oizys.languages = mkOption {
     type = with types; (listOf str);
     description = mdDoc ''