From fc9367a9ec8ce3527291fc3bfc1b12c0260bc676 Mon Sep 17 00:00:00 2001
From: Emily <vcs@emily.moe>
Date: Mon, 10 Feb 2025 19:14:24 +0000
Subject: [PATCH] nix-gc: check for `nix.enable`

This was added to Nixpkgs in eb8b70c020e6693b29634660fa173d7f14f882eb.
---
 modules/services/nix-gc/default.nix | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/modules/services/nix-gc/default.nix b/modules/services/nix-gc/default.nix
index 44278e6..b8d5c4d 100644
--- a/modules/services/nix-gc/default.nix
+++ b/modules/services/nix-gc/default.nix
@@ -56,13 +56,18 @@ in
 
   ###### implementation
 
-  config = mkIf cfg.automatic {
+  config = {
+    assertions = [
+      {
+        assertion = cfg.automatic -> config.nix.enable;
+        message = ''nix.gc.automatic requires nix.enable'';
+      }
+    ];
 
-    launchd.daemons.nix-gc = {
+    launchd.daemons.nix-gc = mkIf cfg.automatic {
       command = "${config.nix.package}/bin/nix-collect-garbage ${cfg.options}";
       serviceConfig.RunAtLoad = false;
       serviceConfig.StartCalendarInterval = cfg.interval;
     };
-
   };
 }