From 44b007c16752d110736a9438d58033951875d75e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Sun, 3 Aug 2025 10:39:12 +0200
Subject: [PATCH] hydra-eval-jobs: unset NIX_PATH

---
 src/script/hydra-eval-jobset | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/script/hydra-eval-jobset b/src/script/hydra-eval-jobset
index 80f5d79c..56aa1c55 100755
--- a/src/script/hydra-eval-jobset
+++ b/src/script/hydra-eval-jobset
@@ -396,9 +396,14 @@ sub evalJobs {
         print STDERR "evaluator: @escaped\n";
     }
 
+    # Unset NIX_PATH for nix-eval-jobs to ensure reproducible evaluations
+    my %env = %ENV;
+    delete $env{'NIX_PATH'};
+
     my $evalProc = IPC::Run::start \@cmd,
             '>', IPC::Run::new_chunker, \my $out,
-            '2>', \my $err;
+            '2>', \my $err,
+            init => sub { %ENV = %env; };
 
     return sub {
         while (1) {