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#!/bin/sh
#
# Copyright (c) 2019, Texas Instruments Incorporated
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# *  Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# *  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.
#
# *  Neither the name of Texas Instruments Incorporated 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.
#

head=`git rev-parse --verify --short HEAD 2>/dev/null`;

if [ ! -z $head ]; then

	tag=`git tag --points-at HEAD | grep PROCESSOR_SDK | head -1`
	if [ -z $tag ]; then
		tag=`git tag --points-at HEAD | head -1`
	fi

	if [ -z $tag ]; then
		version='g'$head
	else
		version=$tag
	fi

else
	version='noversion' 
fi

# Truncate so that .version_string is less than 32 bytes
# ... 24 = 32 - len("Version ")
version=`echo $version | cut -c -24`

if [ $version != 'noversion' ]; then
	echo -n '	.string	"Version '$version'"' > version_file.h  
else
	if [ ! -e version_file.h ]; then
		echo -n '	.string	"Version NONE"' > version_file.h
	fi
fi

exit 0;