auto cleaning of nix store using nix-sweep

2026-03-15 03:35:37 +01:00
parent 44162eb509
commit 82b5c755d6
4 changed files with 78 additions and 1 deletions
@@ -1,10 +1,27 @@
 { config, lib, pkgs, modulesPath, ... }:

+let 
+  keepGenerations = if config.boot.lanzaboote.enable then
+      config.boot.lanzaboote.configurationLimit
+    else if config.boot.loader.systemd-boot.enable then 
+      config.boot.loader.systemd-boot.configurationLimit
+    else null;
+in 
 {
  nix = {
    daemonIOSchedClass = "idle";
    daemonCPUSchedPolicy = "idle";
    settings.trusted-users = [ "root" "user" ];
-    gc.automatic = true;
+  };
+
+  # Clean up nix store from old configurations usinx nix-sweep
+  services.nix-sweep = {
+    enable = true;
+
+    # Automatically determine configuration limit from bootloader
+    keepMax = keepGenerations;
+    keepMin = if keepGenerations != null then keepGenerations else 10;
+
+    gc = true; # Run GC afterwards
  };
 }