fix pre-commit hook

.githooks/pre-commit

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+nix fmt .
+git diff --exit-code || {
+  echo "Formatter changed files — review with 'git diff', then re-stage and commit."
+  exit 1
+}

modules/shell/git.nix

@@ -10,13 +10,12 @@
   programs = {
     git = {
       enable = true;
-      hooks.pre-commit = pkgs.writeShellScript "pre-commit" ''
+      includes = [
-        nix fmt .
+        {
-        git diff --exit-code || {
+          condition = "gitdir:~/.setup/";
-          echo "Formatter changed files — review with 'git diff', then re-stage and commit."
+          contents.core.hooksPath = "~/.setup/.githooks";
-          exit 1
         }
-      '';
+      ];
       settings = {
         user.name = "Kabbone";
         user.email = "tobias@opel-online.de";