release(-lib).nix: add nixpkgsArgs parameter

This allows customizing the nixpkgs arguments by the caller. My use case
is creating a personal nixpkgs channel containing some unfree packages.

The default is still to not build unfree packages, so for nixpkgs this
is no functional change.

1 files changed, 3 insertions, 5 deletions

diff --git a/pkgs/top-level/release-lib.nix b/pkgs/top-level/release-lib.nix
index a6e574a7d11..59d571f0bd1 100644
--- a/pkgs/top-level/release-lib.nix
+++ b/pkgs/top-level/release-lib.nix
@@ -1,17 +1,15 @@
 { supportedSystems
 , packageSet ? (import ../..)
 , scrubJobs ? true
+, # Attributes passed to nixpkgs. Don't build packages marked as unfree.
+  nixpkgsArgs ? { config = { allowUnfree = false; inHydra = true; }; }
 }:
 
 with import ../../lib;
 
 rec {
 
-  # Ensure that we don't build packages marked as unfree.
-  allPackages = args: packageSet (args // {
-    config.allowUnfree = false;
-    config.inHydra = true;
-  });
+  allPackages = args: packageSet (args // nixpkgsArgs);
 
   pkgs = pkgsFor "x86_64-linux";