From 4581b6d07f685a88fe447f187e39e8bd8a79eebc Mon Sep 17 00:00:00 2001
From: Alexander Sulfrian <alex@spline.inf.fu-berlin.de>
Date: Mon, 29 Jul 2013 19:06:53 +0200
Subject: add error message if parameters are missing

---
 format-notify | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/format-notify b/format-notify
index d34fe67..0356587 100755
--- a/format-notify
+++ b/format-notify
@@ -19,6 +19,10 @@ def clean_output(status, output):
     return re.sub(r'^[- :]*', '', output)
 
 def main():
+    if len(sys.argv) < 4:
+        print('Usage: %s (PIPE|--test) SERVICE STATUS OUTPUT' % sys.argv[0])
+        sys.exit(1)
+
     file = sys.argv.pop(1)
     service = sys.argv.pop(1)
     status = sys.argv.pop(1)
-- 
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