From d52a839cf26893f812dec6a9d8e6a40147cf5029 Mon Sep 17 00:00:00 2001
From: Oliver <oliver.henry.walters@gmail.com>
Date: Tue, 4 Jul 2023 21:57:23 +1000
Subject: [PATCH] Handle case where git head is detached (#5161)

- branch information does not exist in this case
- Fixes https://github.com/inventree/InvenTree/issues/5133
---
 InvenTree/InvenTree/version.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/InvenTree/InvenTree/version.py b/InvenTree/InvenTree/version.py
index fdb8e5b907..72e2551b66 100644
--- a/InvenTree/InvenTree/version.py
+++ b/InvenTree/InvenTree/version.py
@@ -162,8 +162,11 @@ def inventreeBranch():
     if main_commit is None:
         return None
 
-    branch = main_repo.refs.follow(b'HEAD')[0][1].decode()
-    return branch.removeprefix('refs/heads/')
+    try:
+        branch = main_repo.refs.follow(b'HEAD')[0][1].decode()
+        return branch.removeprefix('refs/heads/')
+    except IndexError:
+        return None  # pragma: no cover
 
 
 def inventreeTarget():