epm-simulate

#!/bin/sh
#
# Copyright (C) 2012  Etersoft
# Copyright (C) 2012  Vitaly Lipatov <lav@etersoft.ru>
#
# 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.
#

load_helper epm-install

epm_simulate()
{
    local CMD
    [ -z "$pkg_filenames" ] && echo "Skip empty list" && return 2

    local filenames="$(echo $pkg_filenames | filter_out_installed_packages)"

    [ -z "$filenames" ] && echo "All packages are already installed" && return 2

    case $PMTYPE in
    	apt-rpm|apt-dpkg)
    		CMD="apt-get --simulate install"
    		;;
    	yum-rpm)
    		CMD="yum provides"
    		;;
    	urpm-rpm)
    		CMD="urpmi --test --auto"
    		;;
    	zypper-rpm)
    		CMD="zypper --non-interactive install --dry-run"
    		;;
    	emerge)
    		echo "FIXME: Skip with emerge"
    		return ;;
    	pacman)
    		showcmd $SUDO pacman -v -S $filenames
    		echo no | $SUDO pacman -v -S $filenames
    		return ;;
    	slackpkg)
    		docmd slackpkg -batch=on -default_answer=yes download
    		;;
    	*)
    		fatal "Do not known simulate command for $PMTYPE"
    		;;
    esac

    sudocmd $CMD $filenames
}