#!/bin/bash

#

# verify_doPackages.sh -- This function verifies required packages

# your workstation needs in order to run the centos-art command

# correctly. If there are missing packages, the `centos-art.sh' script

# asks you to confirm their installation. When installing packages,

# the `centos-art.sh' script uses the yum application in order to

# achieve the task.

#

# Copyright (C) 2009-2010 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 verify_doPackages {

    local PACKAGES=''

    local PACKAGES_THIRD_REGEX=''

    local -a PACKAGES_MISSING

    local PACKAGES_COUNT=0

    # Define required packages needed by centos-art.sh script.

    PACKAGES="bash inkscape ImageMagick netpbm netpbm-progs

        syslinux gimp coreutils texinfo info tetex-latex tetex-fonts

        tetex-doc tetex-xdvi tetex-dvips gettext texi2html"

    # Define, from required packages, packages being from third

    # parties (i.e., packages not included in CentOS [base]

    # repository.).

    PACKAGES_THIRD_REGEX="(inkscape|blender)"

    verify_doPackageCheck

    verify_doPackageReport

    verify_doPackageInstall

    # At this point we need to recheck installed packages in order to

    # be sure the user decided not to continue when there are still

    # missing packages to be install.  For example this may happen

    # when we try to install third party packages and there is no

    # third party repository availabe to get those packages from.

    verify_doPackages

}