From 92fd97c9a209d4b8f9bc0920d9d08128bfc13951 Mon Sep 17 00:00:00 2001
From: Kabbone <tobias@opel-online.de>
Date: Sun, 26 Apr 2026 10:26:22 +0200
Subject: [PATCH] add nix fmt pre-commit hook

---
 modules/shell/git.nix | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/modules/shell/git.nix b/modules/shell/git.nix
index c5b1c86..8331f4b 100644
--- a/modules/shell/git.nix
+++ b/modules/shell/git.nix
@@ -1,19 +1,29 @@
 #
 # Git
 #
-{ lib, user, ... }:
-
 {
+  lib,
+  pkgs,
+  user,
+  ...
+}: {
   programs = {
     git = {
       enable = true;
+      hooks.pre-commit = pkgs.writeShellScript "pre-commit" ''
+        nix fmt .
+        git diff --exit-code || {
+          echo "Formatter changed files — review with 'git diff', then re-stage and commit."
+          exit 1
+        }
+      '';
       settings = {
-      	user.name = "Kabbone";
-      	user.email = "tobias@opel-online.de";
+        user.name = "Kabbone";
+        user.email = "tobias@opel-online.de";
       };
       lfs = {
-      	enable = true;
-	skipSmudge = true;
+        enable = true;
+        skipSmudge = true;
       };
       signing = {
         format = "ssh";