From 42a7740a37ddcebf106b6c7d3354fdb49e51cf1f Mon Sep 17 00:00:00 2001
From: Thomas Woolford <twoolie@blackhats.net.au>
Date: Tue, 10 May 2022 15:25:58 +0930
Subject: [PATCH] Only try updating setup.cfg if the file exists

sometimes setup.cfg doesn't exist. added a check to make sure it exists before attempting to update it
---
 overrides/default.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/overrides/default.nix b/overrides/default.nix
index 5b6a37a..9c548c7 100644
--- a/overrides/default.nix
+++ b/overrides/default.nix
@@ -1690,7 +1690,10 @@ lib.composeManyExtensions [
         old: {
           # Fixes https://github.com/pytest-dev/pytest/issues/7891
           postPatch = old.postPatch or "" + ''
-            sed -i '/\[metadata\]/aversion = ${old.version}' setup.cfg
+            # sometimes setup.cfg doesn't exist
+            if [ -f setup.cfg ]; then
+              sed -i '/\[metadata\]/aversion = ${old.version}' setup.cfg
+            fi
           '';
         }
       );