#!/bin/bash

#

# cli_getRepoTLDir.sh -- This function returns the repository top

# level absolute path. The repository top level absolute path can be

# either ${CLI_WRKCOPY}/trunk, ${CLI_WRKCOPY}/branches, or

# ${CLI_WRKCOPY}/tags.

#

# Copyright (C) 2009, 2010, 2011 The CentOS Project

#

# 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.

#

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

# $Id$

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

function cli_getRepoTLDir {

    # Define short options.

    local ARGSS='r'

    # Define long options.

    local ARGSL='relative'

    # Initialize arguments with an empty value and set it as local

    # variable to this function scope.

    local ARGUMENTS=''

    # Initialize path pattern and replacement.

    local PATTERN=''

    local REPLACE=''

    # Redefine ARGUMENTS variable using current positional parameters. 

    cli_parseArgumentsReDef "$@"

    # Redefine ARGUMENTS variable using getopt output.

    cli_parseArguments

    # Redefine positional parameters using ARGUMENTS variable.

    eval set -- "$ARGUMENTS"

    # Define the location we want to apply verifications to.

    local LOCATION=$(echo $@ | sed -r 's!^.*--[[:space:]](.+)$!\1!')

    # Verify location passed as non-option argument. If no location is

    # passed as non-option argument to this function, then set the

    # trunk directory structure as default location.

    if [[ $LOCATION =~ '--$' ]];then

        LOCATION=${CLI_WRKCOPY}/trunk

    fi

    # Verify location where the working copy should be stored in the

    # workstations. Whatever the location provided be, it should refer

    # to one of the top level directories inside the working copy of

    # CentOS Artwork Repository which, in turn, should be sotred in

    # the `artwork' directory immediatly under your home directory.

    if [[ ! $LOCATION =~ "^${CLI_WRKCOPY}/(trunk|branches|tags)" ]];then

        cli_printMessage "`eval_gettext "The location \\\"\\\$LOCATION\\\" is not valid."`" --as-error-line

    fi

    # Look for options passed through positional parameters.

    while true;do

        case "$1" in

            -r|--relative )

                PATTERN="^${CLI_WRKCOPY}/(trunk|branches|tags)/.+$"

                REPLACE='\1'

                shift 2

                break

                ;;

            -- )

                PATTERN="^(${CLI_WRKCOPY}/(trunk|branches|tags))/.+$"

                REPLACE='\1'

                shift 1

                break

                ;;

        esac

    done

    # Print out top level directory.

    echo $LOCATION | sed -r "s!${PATTERN}!${REPLACE}!g"

}