#!/bin/bash

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

#

#   prepare_setDirStructure.sh -- This function standardizes the

#   relation between source and target directory structures inside the

#   repository.

#

#   This function takes two arguments. The first is the source

#   directory and the second is the target directory where you wan to

#   reproduce the source directory structure.  In order for this to

#   work, all source directory structures provided to this function

#   must have one level of directories more than its related target

#   directory.  The purpose of this level is content categorization.

#   For example, consider the following path:

#

#       ----------++++++++++++++++++++++++

#       ${SOURCE}/${CATEGORY}/${COMPONENT}

#       ----------++++++++++++++++++++++++

#       +++++++++++++++++++++++++++++------------

#       ${TARGET}/${NAME}/${VERSION}/${COMPONENT}

#       +++++++++++++++++++++++++++++------------

#

#   So we end with the following path:

#

#       ${TARGET}/${CATEGORY}/${COMPONENT}

# 

#   In this path, ${CATEGORY} makes reference to a categorization

#   directory used to describe source components related to target

#   components. However, in the target side, such ${CATEGORY}

#   directory is not needed and should be removed from it in order to

#   get the final target path, which is:  

#

#       ${TARGET}/${COMPONENT}

#

#   ${CATEGORY} is always a one-level directory, but ${COMPONENT}

#   might have several levels deep inside.

#

# Copyright (C) 2009-2013 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.

#

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

function prepare_setDirStructure {

    # Define absolute path to design models' directory structure. This

    # directory contains the directory structure you want to verify

    # inside target path.

    local SOURCE_DIRECTORY=$(tcar_checkRepoDirSource "${1}")

    # Verify existence source path, just to be sure it was passed and

    # it is a valid directory.

    tcar_checkFiles ${SOURCE_DIR} -d

    # Define absolute path to directory inside the repository where

    # you want to replicate the source path directory structure.

    local TARGET_DIRECTORY=$(tcar_checkRepoDirSource "${2}")

    # NOTE: It is possible that target path doesn't exist. So verify

    # the relation between target and source path. If there is a

    # source path for the target, create an empty directory as target,

    # using the related source directory as reference.

    # Define list of directories inside source path.

    local DIRECTORIES=$(tcar_getFilesList ${SOURCE_DIRECTORY} \

        --pattern='.+/[[:alpha:]]+$' --type='d')

    # Iterate through directories inside source path and verify

    # whether or not they exist in the target path. If they don't

    # exist create them.

    for DIRECTORY in ${DIRECTORIES};do

        local DIRECTORY_BASENAME=$(echo ${DIRECTORY} \

            | sed -r "s,${SOURCE_DIRECTORY}/,,")

        if [[ ${DIRECTORY} == ${DIRECTORY_BASENAME} ]];then

            continue

        fi

        local DIRECTORY_TARGET=${TARGET_DIRECTORY}/${DIRECTORY_BASENAME}

        if [[ ! -d ${DIRECTORY_TARGET} ]];then

            mkdir -p ${DIRECTORY_TARGET}

        fi

    done

}