#!/bin/bash

######################################################################

#

#   tcar - The CentOS Artwork Repository automation tool.

#   Copyright © 2014 The CentOS Artwork SIG

#

#   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., 675 Mass Ave, Cambridge, MA 02139, USA.

#

#   Alain Reguera Delgado <al@centos.org.cu>

#   39 Street No. 4426 Cienfuegos, Cuba.

#

######################################################################

# Use getopt to process arguments passed to tcar.sh script.  This

# function works with the following three environment variables:

#

#   ARGSS

#       Stores getopt short arguments definition.

#

#   ARGSL

#       Stores getopt long arguments definition.

#

#   TCAR_MODULE_ARGUMENT

#       Stores arguments passed to functions or command-line interface

#       depending the context it is defined.

#

# These three variables are not defined in this function but the

# function environment you want to provide option parsing for, through

# getopt command. Using local definition for these three variables let

# you to nest option parsing inside different function-environment

# levels.

function tcar_setModuleArguments {

    # Verify presence of either short or long options in the

    # environment. There is not anything to do here if they both are

    # empty.

    if [[ -z ${ARGSS} && -z ${ARGSL} ]];then

        return

    fi

    # Redefine positional parameters using TCAR_MODULE_ARGUMENT variable.

    eval set -- "${TCAR_MODULE_ARGUMENT}"

    # Process positional parameters using getopt's option validation.

    TCAR_MODULE_ARGUMENT=$(getopt -o "${ARGSS}" -l "${ARGSL}" \

        -n "${TCAR_SCRIPT_NAME} (${TCAR_MODULE_NAME})" -- "${@}")

    # Verify getopt's exit status and finish the script execution with

    # an error message, if it failed.

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

        tcar_printMessage "`gettext "The argument verification failed."`" --as-error-line

    fi

}