DEBIAN/preinst
#!/bin/sh
case "$1" in
install|upgrade)
# Remove old installation files, if any
rm -rf /usr/share/vk4xmpp/library
rm -rf /usr/share/vk4xmpp/crash
rm -rf /usr/share/vk4xmpp/extensions
rm -rf /usr/share/vk4xmpp/handlers
rm -rf /usr/share/vk4xmpp/locales
rm -rf /usr/share/vk4xmpp/gateway.py
;;
esac