From 799273bf13dfbd3c108f1b8659b78e970cfe6f43 Mon Sep 17 00:00:00 2001
From: Silvan Mosberger <silvan.mosberger@tweag.io>
Date: Tue, 11 Feb 2025 20:47:52 +0100
Subject: [PATCH] ci/eval/compare: Ignore null packages

CI can fail to evaluate if a package is null:
https://github.com/NixOS/nixpkgs/actions/runs/13209876145/job/36881335314?pr=380228
---
 ci/eval/compare/maintainers.nix | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/ci/eval/compare/maintainers.nix b/ci/eval/compare/maintainers.nix
index 64025c066f965..69748a629cffd 100644
--- a/ci/eval/compare/maintainers.nix
+++ b/ci/eval/compare/maintainers.nix
@@ -24,8 +24,11 @@ let
     pkg:
     if (lib.attrsets.hasAttrByPath pkg.path pkgs) then
       (
-        if (builtins.tryEval (lib.attrsets.attrByPath pkg.path null pkgs)).success then
-          true
+        let
+          value = lib.attrsets.attrByPath pkg.path null pkgs;
+        in
+        if (builtins.tryEval value).success then
+          if value != null then true else builtins.trace "${pkg.name} exists but is null" false
         else
           builtins.trace "Failed to access ${pkg.name} even though it exists" false
       )