#!/bin/bash

#

# cli_getRepoName.sh -- This function sets naming convenction. Inside

# CentOS Artowrk Repository, regular files are written in lower case

# and directories are written in lower case but with the first letter

# in upper case. Use this function to sanitate the name of regular

# files and directory components of paths you work with.

#

# Copyright (C) 2009-2011 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., 675 Mass Ave, Cambridge, MA 02139, USA.

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

# $Id$

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

function cli_getRepoName {

    local NAME="$1"

    local TYPE="$2"

    local DIRS=''

    local DIR=''

    local CLEANDIRS=''

    local PREFIXDIR=''

    case $TYPE in

        'f' | 'basename' )

            # Reduce the path passed to use just the non-directory

            # part of it (i.e., the last component in the path; _not_

            # the last "real" directory in the path).

            NAME=$(basename $NAME)

            # Clean value.

            NAME=$(echo $NAME \

                | tr -s ' ' '_' \

                | tr '[:upper:]' '[:lower:]')

            ;;

        'd' | 'dirname' )

            # Reduce path information passed to use just the directory

            # part of it.  Of course, this is applied only if there is

            # a directory part in the path. However, if there is no

            # directory part but there is a non-empty value in the

            # path, assume that value as directory part and clean it

            # up.

            if [[ $NAME =~ '.+/.+' ]];then

                # When path information is reduced, we need to take

                # into account that absolute path may be provided.

                # Absolute paths include directory structures outside

                # the repository directory structure we don't want to

                # sanitate (e.g., /home/, /home/centos/,

                # /home/centos/artwork, /home/centos/artwork/turnk/,

                # trunk/, etc.). In these cases, it is required that

                # those path component remain untouched. So, in the

                # sake of keeping path components, outside repository

                # directory structure untouched, we use the PREFIXDIR

                # variable to temporarly store the prefix directory

                # structure we don't want to sanitate.

                PREFIXDIR=$(echo $NAME \

                    | sed -r "s,^((${HOME}/artwork/)?(trunk|branches|tags)/).+$,\1,")

                # ... and remove it from the path information we do

                # want to sanitate.

                DIRS=$(dirname "$NAME" \

                    | sed -r "s!^${PREFIXDIR}!!" \

                    | tr '/' ' ')

            else

                # At this point, there is not directory part in the

                # information passed, so use the value passed as

                # directory part as such. 

                DIRS=$NAME

            fi

            for DIR in $DIRS;do

                # Sanitate directory component.

                if [[ $DIR =~ '^[a-z]' ]];then

                    DIR=$(echo ${DIR} \

                        | tr -s ' ' '_' \

                        | tr '[:upper:]' '[:lower:]' \

                        | sed -r 's/^([[:alpha:]])/\u\1/')

                fi

                # Rebuild path using sanitated values.

                CLEANDIRS="${CLEANDIRS}/$DIR"

            done

            # Redefine path using sanitated values.

            NAME=$(echo ${CLEANDIRS} | sed -r "s!^/!!")

            # Add prefix directory information to sanitated path

            # information.

            if [[ "$PREFIXDIR" != '' ]];then

                NAME=${PREFIXDIR}${NAME}

            fi

            ;;

        'fd' | 'basename-to-dirname' )

            # Retrive non-directory part.

            NAME=$(cli_getRepoName $NAME 'f')

            # Retrive cleaned directory part from non-directory part.

            NAME=$(cli_getRepoName $NAME 'd')

            ;;

        'df' | 'dirname-to-basename' )

            # Retrive cleaned directory part from non-directory part.

            NAME=$(cli_getRepoName $NAME 'd')

            # Retrive non-directory part.

            NAME=$(cli_getRepoName $NAME 'f')

            ;;

        'dfd' | 'dirname-to-basename-to-dirname' )

            # Retrive cleaned directory part from non-directory part.

            NAME=$(cli_getRepoName $NAME 'd')

            # Retrive non-directory part.

            NAME=$(cli_getRepoName $NAME 'f')

            # Retrive cleaned directory part from non-directory part.

            NAME=$(cli_getRepoName $NAME 'd')

            ;;

    esac

    # Output clean path information.

    echo $NAME

}