#! /bin/sh
# preinst script for vzctl
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <new-preinst> `install'
#        * <new-preinst> `install' <old-version>
#        * <new-preinst> `upgrade' <old-version>
#        * <old-preinst> `abort-upgrade' <new-version>
#
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package

case "$1" in
    install|upgrade)
    
	# older version installed a symbolic link, we need to remove
	# that - else dpkg does not install the new version
	if [ -L "/etc/network/if-up.d/vzifup-post" ]; then
	    rm -f "/etc/network/if-up.d/vzifup-post"
	fi

	# move old config out of the way - newer version
	# use a symlink to /etc/pve/openvz
	if [ ! -L "/etc/vz/conf" ]; then
	    rmdir "/etc/vz/conf" || true # try to remove empty dir
	    if [ -e "/etc/vz/conf" ]; then 
		if [ -e "/etc/vz/conf.org" ]; then
		    echo "unable to backup existing configuration"
		    exit 1
		fi
		mv /etc/vz/conf /etc/vz/conf.org
	    fi
	fi

	# compability mode /var/lib/vz -> /vz
	# ln -sT /var/lib/vz vz 2>/dev/null || true
	# echo "Add a link from /var/lib/vz to /vz/"
    ;;
    abort-upgrade)
    ;;
    *)
        echo "preinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0