#!/bin/sh

# This file is part of CMake-codecov.
#
# Copyright 2015-2017 RWTH Aachen University, Federal Republic of Germany
# 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 the University of California, Berkeley nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#     * Neither the name of the copyright holder 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 HOLDER 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.
#
# Written by Alexander Haase, alexander.haase@rwth-aachen.de
#

if [ -z "$LLVM_COV_BIN" ]
then
	echo "LLVM_COV_BIN not set!" >& 2
	exit 1
fi


# Get LLVM version to find out.
LLVM_VERSION=$($LLVM_COV_BIN -version | grep -i "LLVM version" \
	| sed "s/^\([A-Za-z ]*\)\([0-9]\).\([0-9]\).*$/\2.\3/g")

if [ "$1" = "-v" ]
then
	echo "llvm-cov-wrapper $LLVM_VERSION"
	exit 0
fi


if [ -n "$LLVM_VERSION" ]
then
	MAJOR=$(echo $LLVM_VERSION | cut -d'.' -f1)
	MINOR=$(echo $LLVM_VERSION | cut -d'.' -f2)

	if [ $MAJOR -eq 3 ] && [ $MINOR -le 4 ]
	then
		if [ -f "$1" ]
		then
			filename=$(basename "$1")
			extension="${filename##*.}"

			case "$extension" in
				"gcno") exec $LLVM_COV_BIN --gcno="$1" ;;
				"gcda") exec $LLVM_COV_BIN --gcda="$1" ;;
			esac
		fi
	fi

	if [ $MAJOR -eq 3 ] && [ $MINOR -le 5 ]
	then
		exec $LLVM_COV_BIN $@
	fi
fi

exec $LLVM_COV_BIN gcov $@
