From 6da3474203fc2ff5981f6c73f7ad02fa81138166 Mon Sep 17 00:00:00 2001
From: Toni <matzeton@googlemail.com>
Date: Sun, 28 May 2023 12:45:44 +0200
Subject: Improved helper scripts. (#1986)

* added additional (more restrictive) checks

Signed-off-by: lns <matzeton@googlemail.com>
---
 utils/mergeipaddrlist.py | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'utils/mergeipaddrlist.py')

diff --git a/utils/mergeipaddrlist.py b/utils/mergeipaddrlist.py
index 36dfba43f..cef9b4660 100755
--- a/utils/mergeipaddrlist.py
+++ b/utils/mergeipaddrlist.py
@@ -16,5 +16,11 @@ ipFile = open(sys.argv[1])
 ipAddresses = list(ipFile.readlines())
 ipAddresses = sorted(ipAddresses)
 cidrs = netaddr.cidr_merge(ipAddresses)
+
+lines = 0
 for cidr in cidrs:
+    lines += 1
     print(cidr)
+
+if lines == 0:
+    sys.stderr.write(f'{sys.argv[0]}: file {sys.argv[1]} is empty\n')
-- 
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