#!/bin/bash

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

#

#   centos-art.sh -- The CentOS artwork repository automation tool.

#

#   Written by:

#   * Alain Reguera Delgado <al@centos.org.cu>, 2009-2013

#

# Copyright (C) 2009-2013 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.

#

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

# Verify absolute path to the working directory. This information is

# critical for centos-art.sh script to work.

if [[ ! ${TCAR_BASEDIR} ]] || [[ -z ${TCAR_BASEDIR} ]] \

    || [[ ! -d ${TCAR_BASEDIR} ]];then

    printf "Enter repository's absolute path: "

    read TCAR_BASEDIR

    declare -xr TCAR_BASEDIR=$(printf ${TCAR_BASEDIR} \

        | sed -r -e 's,/+,/,g' -e 's,/+$,,')

fi

# Define automation scripts base directory. We need to define it here

# in order to reach the configuration file. All other environment

# variable definitions must be declared inside the configuration file.

if [[ -d ${TCAR_BASEDIR} ]];then

    declare -xr TCAR_SCRIPT_BASEDIR=${TCAR_BASEDIR}/Automation

else

    exit 1

fi

# Initialize default configuration values.

if [[ -d ${TCAR_SCRIPT_BASEDIR} ]];then

    . ${TCAR_SCRIPT_BASEDIR}/centos-art.conf.sh

else

    exit 1

fi

# Initialize user-specific configuration values. Users can use this

# file to customize the way centos-art.sh script behaves.

if [[ -f ${TCAR_USER_CONFIG} ]];then

    . ${TCAR_USER_CONFIG}

fi

# Export script's environment functions.

for SCRIPT_FILE in $(ls ${TCAR_SCRIPT_BASEDIR}/Scripts/*.sh);do

    if [[ -x ${SCRIPT_FILE} ]];then

        . ${SCRIPT_FILE}

        export -f $(grep '^function ' ${SCRIPT_FILE} | cut -d' ' -f2)

    else

        echo "${SCRIPT_FILE} `gettext "has not execution rights."`"

        exit 1

    fi

done

# Trap signals in order to terminate the script execution correctly

# (e.g., removing all temporal files before leaving).  Trapping the

# exit signal seems to be enough by now, since it is always present as

# part of the script execution flow. Each time the centos-art.sh

# script is executed it will inevitably end with an EXIT signal at

# some point of its execution, even if it is interrupted in the middle

# of its execution (e.g., through `Ctrl+C').

trap tcar_terminateScriptExecution 0

# Retrieve module's name using the first argument of centos-art.sh

# script as reference.

if [[ ! ${1} =~ '^-' ]];then

    TCAR_MODULE_NAME="${1}"; shift 1

else

    TCAR_MODULE_NAME=""

fi

# Initialize centos-art.sh script specific options. The way

# centos-art.sh script retrieve its options isn't as sophisticated

# (e.g., it doesn't provide valid-option verifications) as it is

# provided by getopt command. We cannot use getopt here because it is

# already used when loading module-specific options. Using more than

# one invocation of getopt in the same script is not possible (e.g.,

# one of the invocations may enter in conflict with the other one when

# different option definitions are expected in the command-line.)

while true; do

    # Store non-option arguments passed to centos-art.sh script.

    if [[ ! ${1} =~ '^-' ]];then

        TCAR_SCRIPT_ARGUMENT="${1} ${TCAR_SCRIPT_ARGUMENT}"

        shift 1

        if [[ $# -gt 0 ]];then

            continue

        else

            break

        fi

    fi

    case "${1}" in

        --help* )

            if [[ -z ${TCAR_MODULE_NAME} ]];then

                # Print centos-art.sh script's help. Consider that the

                # --help option can receive an argument by using the

                # equal sign (e.g.,

                # --help=tcar_setModuleEnvironment.sh).  However, it

                # is not possible to use spaces instead of equal sign

                # because that would confuse other options from being

                # parsed.

                tcar_printHelp "${1}"

                exit 0

            else

                # Store the argument for further processing inside the

                # module environment that will be executed later.

                TCAR_MODULE_ARGUMENT="-g ${1} ${TCAR_MODULE_ARGUMENT}"

                shift 1

            fi

            ;;

        --version )

            # Print centos-art.sh script's version.

            if [[ -z ${TCAR_MODULE_NAME} ]];then

                tcar_printVersion

                exit 0

            else

                TCAR_MODULE_ARGUMENT="-g ${1} ${TCAR_MODULE_ARGUMENT}"

                shift 1

            fi

            ;;

        --quiet )

            TCAR_FLAG_QUIET='true'

            shift 1

            ;;

        --yes )

            TCAR_FLAG_YES='true'

            shift 1

            ;;

        --debug )

            TCAR_FLAG_DEBUG='true'

            shift 1

            ;;

        * ) 

            # Store module-specific option arguments. This is, all

            # arguments not considered part of centos-art.sh script

            # itself. The module-specific option arguments are passed,

            # later, to getopt for option processing, inside the

            # module-specific environments.

            TCAR_MODULE_ARGUMENT="-g ${1} ${TCAR_MODULE_ARGUMENT}"

            shift 1

            if [[ $# -gt 0 ]];then

                continue

            else

                break

            fi

            ;;

    esac

done

# Initiate module-specific environment.

tcar_setModuleEnvironment -m "${TCAR_MODULE_NAME}" ${TCAR_MODULE_ARGUMENT} ${TCAR_SCRIPT_ARGUMENT}

# At this point everything has been done without errors. So, exit

# centos-art.sh script successfully.

exit 0