Add nix fmt hook

Author: shikanime

modules/hooks.nix

@@ -49,7 +49,7 @@ in
     ++ [ (mkRenamedOptionModule [ "settings" "rome" ] [ "hooks" "biome" "settings" ]) ]
     # Rename the remaining `settings.<name>` to `hooks.<name>.settings`
     ++ map (name: mkRenamedOptionModule [ "settings" name ] [ "hooks" name "settings" ])
-      [ "ansible-lint" "autoflake" "biome" "clippy" "cmake-format" "credo" "deadnix" "denofmt" "denolint" "dune-fmt" "eslint" "flake8" "headache" "hlint" "hpack" "isort" "latexindent" "lychee" "mkdocs-linkcheck" "mypy" "nixfmt" "ormolu" "php-cs-fixer" "phpcbf" "phpcs" "phpstan" "prettier" "psalm" "pylint" "pyright" "pyupgrade" "revive" "statix" ];
+      [ "ansible-lint" "autoflake" "biome" "clippy" "cmake-format" "credo" "deadnix" "denofmt" "denolint" "dune-fmt" "eslint" "flake8" "headache" "hlint" "hpack" "isort" "latexindent" "lychee" "mkdocs-linkcheck" "mypy" "nix" "nixfmt" "ormolu" "php-cs-fixer" "phpcbf" "phpcs" "phpstan" "prettier" "psalm" "pylint" "pyright" "pyupgrade" "revive" "statix" ];
 
   options.hookModule = lib.mkOption {
     type = types.deferredModule;
@@ -845,6 +845,13 @@ in
           };
         };
       };
+      nix = mkOption {
+        description = "nix fmt hook";
+        type = types.submodule {
+          imports = [ hookModule ];
+          options.settings = {};
+        };
+      };
       nixfmt = mkOption {
         description = "Deprecated nixfmt hook";
         visible = false;

nix/tools.nix

@@ -134,6 +134,7 @@ in
     mdl
     mdsh
     nil
+    nix
     nixpkgs-fmt
     ormolu
     pre-commit-hook-ensure-sops