#!/bin/bash

#

# cli_checkOptionValue.sh -- This function provides input validation

# for the option value (OPTIONVAL) variable.

#

# 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 cli_checkOptionValue {

    # Check option value before making an absolute path from it. 

    if [[ $OPTIONVAL =~ '(\.\.(/)?)' ]];then

        cli_printMessage "`gettext "The path provided can't be processed."`"

        cli_printMessage "$(caller)" "AsToKnowMoreLine"

    fi

    if [[ ! $OPTIONVAL =~ '^[A-Za-z0-9\./-]+$' ]];then

        cli_printMessage "`gettext "The path provided can't be processed."`"

        cli_printMessage "$(caller)" "AsToKnowMoreLine"

    fi

    # Re-define option value to match the correct absolute path. As we

    # are removing /home/centos/artwork/ from all centos-art.sh output

    # (in order to save space), we need to be sure that all strings

    # begining with trunk/..., branches/..., and tags/... use the

    # correct absolute path. That is, you can refer trunk's entries

    # using both /home/centos/artwork/trunk/... or just trunk/..., the

    # /home/centos/artwork/ part is automatically added here. 

    if [[ $OPTIONVAL =~ '^(trunk|branches|tags)' ]];then

        OPTIONVAL=/home/centos/artwork/$OPTIONVAL

    fi

    # Build absolute path from option value. It is required for the

    # option value to point a valid directory. Otherwise leave a

    # message and quit script execution.

    if [[ -d $OPTIONVAL ]];then

        # Add directory to the top of the directory stack.

        pushd "$OPTIONVAL" > /dev/null

        # Re-define option value using absolute path.

        OPTIONVAL=$(pwd)

        # Remove directory from the directory stack.

        popd > /dev/null

    else

        cli_printMessage "`gettext "The path provided is not a valid directory."`"

        cli_printMessage "$(caller)" "AsToKnowMoreLine"

    fi

}