From 2272117b407f14abea1bf91e12ffcd39a39cc20f Mon Sep 17 00:00:00 2001
From: "Dr. Jens Harbott" <harbott@osism.tech>
Date: Tue, 3 May 2022 20:52:09 +0200
Subject: [PATCH] Avoid infinite loop in find_zuul_yaml()

Currently there will be an infinite loop when no zuul config can be
found. Terminate the loop when we reach the filesystem root.

Signed-off-by: Dr. Jens Harbott <harbott@osism.tech>
Change-Id: I074f23eeac82531024cd1af0eeb7c502555eacd7
---
 zuul_sphinx/zuul.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zuul_sphinx/zuul.py b/zuul_sphinx/zuul.py
index f578884..bb669be 100644
--- a/zuul_sphinx/zuul.py
+++ b/zuul_sphinx/zuul.py
@@ -79,7 +79,7 @@ class ZuulDirective(Directive):
 
     def find_zuul_yaml(self):
         root = self.state.document.settings.env.relfn2path('.')[1]
-        while root:
+        while root and root != '/':
             for fn in ['zuul.yaml', '.zuul.yaml', 'zuul.d', '.zuul.d']:
                 path = os.path.join(root, fn)
                 if os.path.exists(path):