test_format.sh
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	#!/bin/bash
	echo "clang-format - checking Code Formatting..."

	if [[ "${TRAVIS_OS_NAME}" == "linux" ]] && \
	[[ "${TEST_CLANG_FORMAT}" == "yes" ]]; then

	RETURN=0
	CLANG_FORMAT="clang-format-3.9"

	which clang-format-3.9

	if [ ! -f ".clang-format" ]; then
	echo ".clang-format file not found!"
	exit 1
	fi

	FILES=`git diff master --name-only \| grep -E "\.(cc\|cpp\|h)$"`

	for FILE in $FILES; do

	$CLANG_FORMAT $FILE \| cmp $FILE >/dev/null

	if [ $? -ne 0 ]; then
	echo "[!] Clang-Format Found INCORRECT FORMATTING. Please re-format and re-submit. The following file failed: $FILE" >&2
	RETURN=1
	fi

	done

	exit $RETURN
	fi

	exit 0