#!/bin/sh
#
# Copyright (c) Authors: http://www.armbian.com/authors
#
# This file is licensed under the terms of the GNU General Public
# License version 2. This program is licensed "as is" without any
# warranty of any kind, whether express or implied.
#
# truncate, save and clean logs if they get over 75% of the /var/log size
# working only when armbian-ramlog is enabled

treshold=75 # %

[ -f /etc/default/armbian-ramlog ] && . /etc/default/armbian-ramlog

[ "$ENABLED" != true ] && exit 0

logusage=$(df /var/log/ --output=pcent | tail -1 |cut -d "%" -f 1)
if [ $logusage -ge $treshold ]; then
		# write to SD
                /usr/lib/armbian/armbian-ramlog write >/dev/null 2>&1
                # rotate logs on "disk"
                chown root.root -R /var/log.hdd
                /usr/sbin/logrotate --force /etc/logrotate.conf
		# truncate
	        /usr/bin/find /var/log -name '*.log' -or -name '*.xz' -or -name 'lastlog' -or -name 'messages' -or -name 'debug' -or -name 'syslog' | xargs truncate --size 0
		/usr/bin/find /var/log -name 'btmp' -or -name 'wtmp' -or -name 'faillog' | xargs truncate --size 0
		# remove
		/usr/bin/find /var/log -name '*.[0-9]' -or -name '*.gz' | xargs rm >/dev/null 2>&1

fi