From 629b2650d0b1abfe7a95843a963da27c53822079 Mon Sep 17 00:00:00 2001
From: Jochen Sprickerhof <git@jochen.sprickerhof.de>
Date: Mon, 6 Feb 2023 16:30:15 +0100
Subject: [PATCH] makebuildserver: make sure config is a dict

yaml.safe_load returns None for an empty file.
---
 makebuildserver | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/makebuildserver b/makebuildserver
index e7c006f1..5d181b53 100755
--- a/makebuildserver
+++ b/makebuildserver
@@ -84,6 +84,9 @@ if not os.path.exists(configfile):
     shutil.copy('examples/Vagrantfile.yaml', configfile)
 with open(configfile) as fp:
     config = yaml.safe_load(fp)
+    if not isinstance(config, dict):
+        logging.info("config is empty or not a dict, using default.")
+        config = {}
 with open('buildserver/Vagrantfile') as fp:
     m = re.search(r"""\.vm\.box\s*=\s*["'](.*)["']""", fp.read())
     if not m: