#!/bin/sh

set -e

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 \"\\\\' $CONFFILE's/.* //p\"`"
        if [ "$md5sum" != "$old_md5sum" ]; then
            echo "Obsolete conffile $CONFFILE has been modified by you."
            echo "Saving as $CONFFILE.dpkg-old ..."
            mv -f "$CONFFILE" "$CONFFILE".dpkg-old
        else
            echo "Removing obsolete conffile $CONFFILE ..."
            rm -f "$CONFFILE"
        fi
    fi
}
# Prepare to move a conffile without triggering a dpkg question.  From
# http://wiki.debian.org/DpkgConffileHandling
prep_mv_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
        rm -f "$CONFFILE"
    fi
}

case "$1" in
install)
    ;;
upgrade)

    # Remove leftover directory from LTSP5 configuration
    if dpkg --compare-versions "$2" le "2.11.16" ; then
        rm -rf /etc/ltspfs
    fi

    # Move .keytab files from /etc/debian-edu/host-keytabs to
    # /var/lib/debian-edu/host-keytabs before dpkg-maintscript-helper moves
    # the /etc/debian-edu/host-keytabs dir and replaces it by a symlink...
    # We have to move the .keytab files manually, because they are not owned
    # by debian-edu-config.
    if dpkg --compare-versions "$2" le "2.12.17"; then
        if [ -d /etc/debian-edu/host-keytabs ] && \
           [ ! -h /etc/debian-edu/host-keytabs ] && \
           find /etc/debian-edu/host-keytabs/* 1>/dev/null 2>/dev/null; then
            mkdir -p /var/lib/debian-edu/host-keytabs/
            mv /etc/debian-edu/host-keytabs/*.keytab /var/lib/debian-edu/host-keytabs/
        fi
    fi

    ;;
esac

#DEBHELPER#