From 75f40a150c9d1aa9869cd5de817e25129a92f78b Mon Sep 17 00:00:00 2001
From: Wolfgang Walther <walther@technowledgy.de>
Date: Thu, 7 Aug 2025 16:39:04 +0200
Subject: [PATCH] ci/eval: use sane defaults

Using these defaults makes it possible to just run `nix-build ci -A
eval.singleSystem` without passing additional arguments and get a sane
result back. Especially helpful when testing or debugging.

A `chunkSize` of 5000 is conservative to be able to run on systems with
less memory as well. Run-time is not impacted by that, as recent
benchmarks show.
---
 ci/eval/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ci/eval/default.nix b/ci/eval/default.nix
index 9887afd5e107..2b7f59ae6b43 100644
--- a/ci/eval/default.nix
+++ b/ci/eval/default.nix
@@ -72,11 +72,11 @@ let
       # The system to evaluate.
       # Note that this is intentionally not called `system`,
       # because `--argstr system` would only be passed to the ci/default.nix file!
-      evalSystem,
+      evalSystem ? builtins.currentSystem,
       # The path to the `paths.json` file from `attrpathsSuperset`
       attrpathFile ? "${attrpathsSuperset { inherit evalSystem; }}/paths.json",
       # The number of attributes per chunk, see ./README.md for more info.
-      chunkSize,
+      chunkSize ? 5000,
       checkMeta ? true,
 
       # Don't try to eval packages marked as broken.