#!/bin/bash

#

# prepare_doPackageCheck.sh -- This function receives a list of

# packages and verifies if they are currently installed in your

# system. Third party package verification is also done here.

#

# Copyright (C) 2009-2011 Alain Reguera Delgado

# 

# This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307

# USA.

# 

# ----------------------------------------------------------------------

# $Id$

# ----------------------------------------------------------------------

function prepare_doPackageCheck {

    local PACKAGE=''

    # Check package manager command existance.

    cli_checkFiles '/bin/rpm' 'x'

    for PACKAGE in $PACKAGES;do

        # Query your system's RPM database.

        rpm -q --queryformat "%{NAME}\n" $PACKAGE --quiet

        # Define missing packages.

        if [[ $? -ne 0 ]];then

            PACKAGES_MISSING[$PACKAGES_COUNT]=$PACKAGE

        fi

        # Increase package counter.

        PACKAGES_COUNT=$(($PACKAGES_COUNT + 1))

    done

    # In there is no missing package, end script execution with a

    # descriptive output.

    if [[ ${#PACKAGES_MISSING[*]} -eq 0 ]];then

        cli_printMessage "`gettext "The required packages are already installed."`"

        cli_printMessage "$(caller)" 'AsToKnowMoreLine'

    fi

}