#!/bin/sh -e

rm_conffile() {
    local PKGNAME="$1"
    local CONFFILE="$2"

    [ -e "$CONFFILE" ] || return 0

    local md5sum="$(md5sum $CONFFILE | sed -e 's/ .*//')"
    local old_md5sum="$(dpkg-query -W -f='${Conffiles}' $PKGNAME | \
            sed -n -e "\' $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
    if [ "$md5sum" != "$old_md5sum" ]; then
        echo "Obsolete conffile $CONFFILE has been modified by you."
        echo "Saving as $CONFFILE.dpkg-bak ..."
        mv -f "$CONFFILE" "$CONFFILE".dpkg-bak
    else
        echo "Removing obsolete conffile $CONFFILE ..."
        rm -f "$CONFFILE"
    fi
}


if [ "$1" = "install" -o "$1" = "upgrade" ]; then
	# Move the old config files before dpkg checks them.
	if [ -d /etc/X11/xdg/xfce4 ]; then
		mkdir -p /etc/xdg/xfce4 || true
		mv /etc/X11/xdg/xfce4/* /etc/xdg/xfce4 || true
		rmdir /etc/X11/xdg/xfce4 || true
	fi

	if dpkg --compare-versions "$2" lt-nl "4.6.2-1ubuntu2"; then
	    rm_conffile xfce4-utils /etc/xdg/autostart/xfconf-migration-4.6.desktop
	fi
fi

#DEBHELPER#

exit 0
