source: trunk/debathena/config/cluster-login-config/debian/debathena-cluster-login-config.preinst @ 25292

#!/bin/sh
# preinst script for debathena-cluster-login-config
#
# 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

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 }")"
    # ' # <-- emacs is confused about quoting
    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 $CONFFILE ..."
        mv -f "$CONFFILE" "$CONFFILE".dpkg-del
    fi
}

case "$1" in
    install|upgrade)
        if dpkg --compare-versions "$2" lt 1.24~; then
            rm_conffile debathena-cluster-login-config "/etc/event.d/ttymsg"
            rm_conffile debathena-cluster-login-config "/etc/init/ttymsg.conf"
        fi

        if dpkg --compare-versions "$2" lt 1.36.2~; then
            rm_conffile debathena-cluster-login-config /etc/apt/sources.list.d/debathena-backports.list
            rm_conffile debathena-cluster-login-config /etc/apt/preferences.d/debathena-libstdcplusplus.pref
        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.

#DEBHELPER#

exit 0