From be945bc9e76d97e513319a00b6e8813d77b05543 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20P=C3=A9ters?= <fpeters@entrouvert.com>
Date: Sat, 14 Aug 2021 20:44:14 +0200
Subject: [PATCH] prometheus: don't run exim tests if exim is not installed
 (#56145)

---
 prometheus-entrouvert-exporter/prometheus-system-exporter.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/prometheus-entrouvert-exporter/prometheus-system-exporter.py b/prometheus-entrouvert-exporter/prometheus-system-exporter.py
index a5a282f..4498481 100755
--- a/prometheus-entrouvert-exporter/prometheus-system-exporter.py
+++ b/prometheus-entrouvert-exporter/prometheus-system-exporter.py
@@ -74,6 +74,8 @@ def etckeeper(ctn):
 
 
 def exim(ctn):
+    if not os.path.exists('/usr/sbin/exim'):
+        return
     with open('/var/log/exim4/mainlog', 'rb') as fh:
         for line in fh.readlines():
             if b" ** " in line and not (