#!/bin/bash
######################################################################
#
#   tcar_checkWorkDirSource.sh -- This function prepares non-option
#   arguments passed through the command-line for further processing.
#   When the argument provided is not an absolute path this function
#   transforms it into an absolute path using the current working
#   directory.
#
#   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.
#
######################################################################

function tcar_checkWorkDirSource {

    local LOCATION=${1}

    # Append the current working directory when the location provided
    # isn't absolute.
    if [[ ! ${LOCATION} =~ '^/' ]];then
        LOCATION=${PWD}/${LOCATION}
    fi

    # Remove both consecutive slashes and trailing slashes from final
    # location.
    echo "${LOCATION}" | sed -r -e 's,/+,/,g' -e 's,/+$,,g'

    # The single slash form doesn't point to repository's root
    # directory anymore. Instead, when a single slash is passed
    # as argument through the command-line, it preserves its regular
    # meaning which is pointing the workstation's file system.

    # The path verification isn't appropriate here because this
    # function is commonly used inside variable assignments and flow
    # control doesn't take place in such situation. In case path
    # verification fails here, the script wouldn't end its execution
    # which contradicts the expected behaviour.

}