#!/bin/bash

#

# cli_unsetFunctions.sh -- This function unsets funtionalities from

# `centos-art.sh' script execution evironment.

#

# Copyright (C) 2009, 2010, 2011 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.

#

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

# $Id$

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

function cli_unsetFunctions {

    # Define source location where function files are placed in.

    local LOCATION=$1

    # Define suffix used to retrive function files.

    local SUFFIX=$2

    # Verify suffix value used to retrive function files. Assuming no

    # suffix value is passed as second argument to this function, use

    # the function name value (FUNCNAM) as default value.

    if [[ $SUFFIX == '' ]];then

        SUFFIX=$FUNCNAM

    fi

    # Define list of backend-specific functionalities. This is the

    # list of function definitions previously exported by

    # `cli_exportFunctions'.  Be sure to limit the list to function

    # names that start with the suffix specified only.

    local FUNCDEF=''

    local FUNCDEFS=$(declare -F | gawk '{ print $3 }' | egrep "^${SUFFIX}")

    # Unset function names from current execution environment.

    for FUNCDEF in $FUNCDEFS;do

        unset -f $FUNCDEF

    done

}