From 390835e96adf042dafa0df26012d8c16fecd2ec7 Mon Sep 17 00:00:00 2001
From: Maniack Crudelis <maniackcrudelis@users.noreply.github.com>
Date: Mon, 24 Jul 2017 02:50:48 +0200
Subject: [PATCH] [fix] Logrotate append (#328)

* [fix] Logrotate append
* Typo fix by JimboJoe
---
 data/helpers.d/backend | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/data/helpers.d/backend b/data/helpers.d/backend
index dbb739aaf..edd8ad7f4 100644
--- a/data/helpers.d/backend
+++ b/data/helpers.d/backend
@@ -1,16 +1,26 @@
 # Use logrotate to manage the logfile
 #
-# usage: ynh_use_logrotate [logfile]
+# usage: ynh_use_logrotate [logfile] [--non-append]
 # | arg: logfile - absolute path of logfile
+# | option: --non-append - Replace the config file instead of appending this new config.
 #
 # If no argument provided, a standard directory will be use. /var/log/${app}
 # You can provide a path with the directory only or with the logfile.
 # /parentdir/logdir/
 # /parentdir/logdir/logfile.log
 #
-# It's possible to use this helper several times, each config will added to same logrotate config file.
+# It's possible to use this helper several times, each config will be added to the same logrotate config file.
+# Unless you use the option --non-append
 ynh_use_logrotate () {
-	if [ "$#" -gt 0 ]; then
+	local customtee="tee -a"
+	if [ $# -gt 0 ] && [ "$1" == "--non-append" ]; then
+		customtee="tee"
+		# Destroy this argument for the next command.
+		shift
+	elif [ $# -gt 1 ] && [ "$2" == "--non-append" ]; then
+		customtee="tee"
+	fi
+	if [ $# -gt 0 ]; then
 		if [ "$(echo ${1##*.})" == "log" ]; then	# Keep only the extension to check if it's a logfile
 			logfile=$1	# In this case, focus logrotate on the logfile
 		else
@@ -40,7 +50,7 @@ $logfile {
 }
 EOF
 	sudo mkdir -p $(dirname "$logfile")	# Create the log directory, if not exist
-	cat ${app}-logrotate | sudo tee -a /etc/logrotate.d/$app > /dev/null	# Append this config to the others for this app. If a config file already exist
+	cat ${app}-logrotate | sudo $customtee /etc/logrotate.d/$app > /dev/null	# Append this config to the existing config file, or replace the whole config file (depending on $customtee)
 }
 
 # Remove the app's logrotate config.