From ec5681f0f1e6df237c6b5e650317d52183bc19b7 Mon Sep 17 00:00:00 2001
From: Johannes Truschnigg <johannes@truschnigg.info>
Date: Sat, 27 Apr 2019 18:13:44 +0200
Subject: [PATCH] Do not install SysV init-scripts on systemd-enabled hosts

Also, hint at example service unit files if systemd is detected. Thanks
to @mika for spotting a bug in the original iteration of this patch.
---
 utils/install_server.sh | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/utils/install_server.sh b/utils/install_server.sh
index 8e5753bc6..efda7da1c 100755
--- a/utils/install_server.sh
+++ b/utils/install_server.sh
@@ -73,6 +73,16 @@ if [ "$(id -u)" -ne 0 ] ; then
 	exit 1
 fi
 
+#bail if this system is managed by systemd
+_pid_1_exe="$(readlink -f /proc/1/exe)"
+if [ "${_pid_1_exe##*/}" = systemd ]
+then
+	echo "This systems seems to use systemd."
+	echo "Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!"
+	exit 1
+fi
+unset _pid_1_exe
+
 if ! echo $REDIS_PORT | egrep -q '^[0-9]+$' ; then
 	_MANUAL_EXECUTION=true
 	#Read the redis port