#!/bin/sh
# preinst script for scalpel
#
# 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


# Remove a no-longer used conffile
rm_conffile() {
    PKGNAME="$1"
    CONFFILE="$2"

    if [ -e "$CONFFILE" ]; then
        md5sum="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
        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
    fi
}

LASTVERSION=0.4.1

case "$1" in
install|upgrade)
    if dpkg --compare-versions "$2" le "$LASTVERSION"; then
        rm_conffile openssh-blacklist "/etc/ssh/blacklist.RSA-2048"
        rm_conffile openssh-blacklist "/etc/ssh/blacklist.DSA-1024"
    fi
    ;;
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.



exit 0
