#!/bin/bash

#

# cli_getRepoName.sh -- This function standardize file and directories

# name convenction inside the working copy of CentOS Artowrk

# Repository. As convenction, 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, 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_getRepoName {

    # Define short options.

    local ARGSS='f,d'

    # Define long options.

    local ARGSL='basename,dirname'

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

    # variable to this function scope.

    local ARGUMENTS=''

    # 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 name we want to apply verifications to.

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

    # Look for options passed through positional parameters.

    while true;do

        case "$1" 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:]')

                shift 1

                ;;

            -d|--dirname )

                local DIR=''

                local DIRS=''

                local CLEANDIRS=''

                local PREFIXDIR=''

                # In order to sanitate each directory in a path, it is

                # required to break off the path string so each

                # component can be worked out individually and later

                # combine them back to create a clean path string.

                # Reduce path information passed to use the directory

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

                # there is a directory part in the path.  Assuming

                # there is no directory part but a non-empty value in

                # the path, use that value as directory part and clean

                # it up.

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

                    # When path information is reduced, we need to

                    # consider that absolute paths contain some

                    # directories outside the working copy directory

                    # structure that shouldn't be sanitated  (e.g.,

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

                    # /home/centos/artwork/turnk, trunk, etc.) 

                    # So, we keep them unchaged for later use.

                    PREFIXDIR=$(echo $NAME \

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

                    # ... and remove them 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

                shift 1

                ;;

            -- )

                shift 1

                break

                ;;

        esac

    done

    # Print out the clean path string.

    echo $NAME

}