From 0bc707ad3482844000ec2de86f02c5e5ae862514 Mon Sep 17 00:00:00 2001
From: Chris Hennes <chennes@pioneerlibrarysystem.org>
Date: Thu, 30 Oct 2025 08:58:39 -0500
Subject: [PATCH] CI: Silence expected error message for shallow repo

---
 src/Tools/SubWCRev.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Tools/SubWCRev.py b/src/Tools/SubWCRev.py
index 3e75e8efee..45088371fb 100644
--- a/src/Tools/SubWCRev.py
+++ b/src/Tools/SubWCRev.py
@@ -305,7 +305,8 @@ class GitControl(VersionControl):
         referencerevision = 14555
 
         result = None
-        countallfh = os.popen("git rev-list --count %s..HEAD" % referencecommit)
+        null_device = "nul" if os.name == "nt" else "/dev/null"
+        countallfh = os.popen(f"git rev-list --count {referencecommit}..HEAD 2>{null_device}")
         countallstr = countallfh.read().strip()
         if countallfh.close() is not None:  # reference commit not present, use the date
             date_object = datetime.datetime.strptime(self.date, "%Y/%m/%d %H:%M:%S")