#!/bin/sh
# Copyright (C) 2008 Vladimir V. Kamarzin <vvk@altlinux.org>
#
# Remove all kernels except current
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.

flavour_version_release="$(uname -r | awk -F- '{print $2"-"$3"-"$1"-"$4}')"
old_kernels="$(rpm -qa | fgrep kernel-image | fgrep -v $flavour_version_release | tr '\n' ' ')"

# calculate arguments for apt
for kernel in $old_kernels
do
	apt_args_list="$apt_args_list $(rpm -q --queryformat '%{NAME}#%{EPOCH}:%{VERSION}-%{RELEASE}\n' $kernel \
		| sed -e "s,(none):,,g")"
done

# use sudo(1) if running as unprivileged user
[ "$UID" = "0" ] && SUDO= || SUDO=sudo

$SUDO apt-get remove $apt_args_list
