From 385b9a1b7a1b080283e286383c18db93616aeb01 Mon Sep 17 00:00:00 2001
From: Eric Callahan <arksine.code@gmail.com>
Date: Tue, 7 Feb 2023 11:20:08 -0500
Subject: [PATCH] update_manager:  handle rev-list on tagless repos

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>
---
 moonraker/components/update_manager/git_deploy.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/moonraker/components/update_manager/git_deploy.py b/moonraker/components/update_manager/git_deploy.py
index fa5fbf1..3ee1f06 100644
--- a/moonraker/components/update_manager/git_deploy.py
+++ b/moonraker/components/update_manager/git_deploy.py
@@ -584,6 +584,8 @@ class GitRepo:
         commit = tag = "?"
         try:
             commit = await self.rev_list("--tags --max-count=1")
+            if not commit:
+                return "?", "?"
             tag = await self.describe(f"--tags {commit}")
         except Exception:
             pass