#! /bin/sh
############################################################################
# Reconfigure
#
#   Copyright (C) 2008 Gregory Nutt. All rights reserved.
#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the
#    distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
#    used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################

function show_usage ()
{
    echo "USAGE:"
    echo "  ./Configure [--debug] [--help] <config-file>"
    echo "OPTIONS:"
    echo "  --debug"
    echo "      Prints what script is doing"
    echo "  --help"
    echo "      Prints this information"
    exit 1
}

# Process command line arguments
#
DEBUG=
CONFIGFILE=
while [ $# -gt 0 ] ; do
   case "$1" in
       --debug )
	   DEBUG=$1
	   ;;
       --help )
	   show_usage
	   exit 1
	   ;;
       * )
	   CONFIGFILE=$1
	   ;;
   esac
   shift
done

if [ -z "${CONFIGFILE}" ]; then
    echo "<config-file> not specified"
    show_usage
    exit 1
fi

if [ ! -x "${CONFIGFILE}" ]; then
    echo "Executable <config-file>=\"${CONFIGFILE}\" does not exist"
    show_usage
    exit 1
fi

if [ ! -x Configure ]; then
    echo "./Configure script does not exist"
    exit 1
fi

cp -f ${CONFIGFILE} .config || \
    { echo "Copy of ${CONFIGFILE} .config failed" ; exit 1 ; }

./Configure --regen $DEBUG