Merge pull request #1130 from pi-hole/new/logrotate

Use logrotate for pihole.log

advanced/Scripts/piholeLogFlush.sh

@@ -11,5 +11,10 @@
 # (at your option) any later version.
 
 echo -n "::: Flushing /var/log/pihole.log ..."
-echo " " > /var/log/pihole.log
+# Test if logrotate is available on this system
+if command -v /usr/sbin/logrotate &> /dev/null; then
+  /usr/sbin/logrotate --force /etc/.pihole/advanced/logrotate
+else
+  echo " " > /var/log/pihole.log
+fi
 echo "... done!"

advanced/logrotate

@@ -0,0 +1,9 @@
+/var/log/pihole.log {
+	daily
+	copytruncate
+	rotate 5
+	compress
+	delaycompress
+	notifempty
+	nomail
+}

advanced/pihole.cron

@@ -23,4 +23,7 @@
 
 # Pi-hole: Flush the log daily at 00:00 so it doesn't get out of control
 #          Stats will be viewable in the Web interface thanks to the cron job above
+#          The flush script will use logrotate if available
 00 00   * * *   root    PATH="$PATH:/usr/local/bin/" pihole flush
+
+@reboot root /usr/sbin/logrotate /etc/.pihole/advanced/logrotate