postfix: add backup/restore at package update.

src/paks/default/uninstall.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+	#!/bin/bash
 ############################################################################
 #                                                                          #
 # This file is part of the IPFire Firewall.                                #

src/paks/postfix/install.sh

@@ -23,10 +23,12 @@
 #
 . /opt/pakfire/lib/functions.sh
 extract_files
+restore_backup ${NAME}
 postalias /etc/aliases
 # Set postfix's hostname
 postconf -e "myhostname=$(hostname -f)"
-/etc/init.d/postfix start
+
+start_service ${NAME}
 
 # Enable autostart for postfix
 ln -sf  ../init.d/postfix /etc/rc.d/rc0.d/K25postfix

src/paks/postfix/uninstall.sh

@@ -22,5 +22,8 @@
 ############################################################################
 #
 . /opt/pakfire/lib/functions.sh
+extract_backup_includes
+stop_service ${NAME}
+make_backup ${NAME}
 remove_files
 rm -rfv /etc/rc.d/rc*.d/*postfix