From 5ba9c03e23bb31d77a80c96cf49126432b427b42 Mon Sep 17 00:00:00 2001
From: Timotej Lazar <timotej.lazar@fri.uni-lj.si>
Date: Mon, 26 Jun 2023 10:15:03 +0200
Subject: [PATCH] =?UTF-8?q?Don=E2=80=99t=20print=20empty=20element=20lists?=
 =?UTF-8?q?=20in=20nftables?=
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Because nft chokes on them.
---
 web/system.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/system.py b/web/system.py
index 455b913..2411f10 100644
--- a/web/system.py
+++ b/web/system.py
@@ -81,7 +81,7 @@ def save_config():
                     return f'''\
 set {name} {{
     type {"ipv6_addr" if name.endswith('/6') else "ipv4_addr"}; flags interval
-    elements = {{ {', '.join(ips)} }}
+    {"" if ips else "# "}elements = {{ {", ".join(ips)} }}
 }}'''
                 for name, ips in ipsets.items():
                     print(format_set(name, ips), file=f)