split out flake overrides into a separate module

1 files changed, 17 insertions, 0 deletions

diff --git a/modules/system/flake-overrides.nix b/modules/system/flake-overrides.nix
new file mode 100644
index 0000000..9a6c506
--- /dev/null
+++ b/modules/system/flake-overrides.nix
@@ -0,0 +1,17 @@
+{ lib, inputs, ... }:
+
+with lib;
+
+let
+  inherit (inputs) darwin nixpkgs;
+in
+
+{
+  config = {
+    system.darwinVersionSuffix = ".${darwin.shortRev or "dirty"}";
+    system.darwinRevision = mkIf (darwin ? rev) darwin.rev;
+
+    system.nixpkgsVersionSuffix = ".${substring 0 8 (nixpkgs.lastModifiedDate or nixpkgs.lastModified or "19700101")}.${nixpkgs.shortRev or "dirty"}";
+    system.nixpkgsRevision = mkIf (nixpkgs ? rev) nixpkgs.rev;
+  };
+}