From d207fa609121341fe214b70b24fd4b12ae1e8737 Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Fri, 30 Jun 2023 02:13:09 +0200
Subject: default.nix: Use nixpkgs.rev if it is set

This increases the odds of automatically setting system.nixpkgsRevision,
which makes the links in the manual nice.
---
 default.nix | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'default.nix')

diff --git a/default.nix b/default.nix
index 9787e51..11c686b 100644
--- a/default.nix
+++ b/default.nix
@@ -10,10 +10,15 @@ let
 
   eval = evalConfig {
     inherit system;
-    modules = [ configuration ];
+    modules = [ configuration nixpkgsRevisionModule ];
     inputs = { inherit nixpkgs; };
   };
 
+  nixpkgsRevisionModule =
+    if nixpkgs?rev && lib.isString nixpkgs.rev
+    then { system.nixpkgsRevision = nixpkgs.rev; }
+    else { };
+
   # The source code of this repo needed by the [un]installers.
   nix-darwin = lib.cleanSource (
     lib.cleanSourceWith {
-- 
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