From 56992b8c945d497a623fe693847c91235be1ae02 Mon Sep 17 00:00:00 2001
From: sefidel <contact@sefidel.net>
Date: Tue, 28 Dec 2021 01:11:25 +0900
Subject: initial commit

---
 nixos/modules/nix.nix | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 nixos/modules/nix.nix

(limited to 'nixos/modules/nix.nix')

diff --git a/nixos/modules/nix.nix b/nixos/modules/nix.nix
new file mode 100644
index 0000000..04fafac
--- /dev/null
+++ b/nixos/modules/nix.nix
@@ -0,0 +1,34 @@
+{ config, lib, ... }:
+
+let
+  allowed = config.nix.allowedUnfree;
+in
+{
+  options.nix = {
+    experimentalFeatures = lib.mkOption {
+      type = lib.types.separatedString " ";
+      default = "";
+      description = ''
+        Enables experimental features
+      '';
+    };
+
+    allowedUnfree = lib.mkOption {
+      type = lib.types.listOf lib.types.string;
+      default = [ ];
+      description = ''
+        Allows for  unfree packages by their name.
+      '';
+    };
+  };
+
+  config = lib.mkMerge [
+    (lib.mkIf (config.nix.experimentalFeatures != "") { nix.extraOptions = "experimental-features = ${config.nix.experimentalFeatures}"; })
+    (lib.mkIf (allowed != [ ]) { nixpkgs.config.allowUnfreePredicate = (pkg: __elem (lib.getName pkg) allowed); })
+    { nix.autoOptimiseStore = lib.mkDefault true; }
+    {
+      nix.gc.automatic = lib.mkDefault true;
+      nix.gc.options = lib.mkDefault "--delete-older-than 10d";
+    }
+  ];
+}
-- 
cgit 1.4.1