From d304353abe21350e545bfa648288d28743bbeb71 Mon Sep 17 00:00:00 2001
From: Ente <ducksource@duckpond.ch>
Date: Mon, 16 Mar 2020 22:12:05 +0100
Subject: [PATCH] Atomic write_file

---
 nixos/modules/config/update-users-groups.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/config/update-users-groups.pl b/nixos/modules/config/update-users-groups.pl
index 15e448b787aaf..68660df06f99d 100644
--- a/nixos/modules/config/update-users-groups.pl
+++ b/nixos/modules/config/update-users-groups.pl
@@ -16,7 +16,7 @@
 
 sub updateFile {
     my ($path, $contents, $perms) = @_;
-    write_file("$path.tmp", { binmode => ':utf8', perms => $perms // 0644 }, $contents);
+    write_file("$path.tmp", { binmode => ':utf8', perms => $perms // 0644, atomic => 1 }, $contents);
     rename("$path.tmp", $path) or die;
 }