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#!/usr/bin/env bash
#
# Copyright (c) 2018 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
#
# Check include guards.
export LC_ALL=C
HEADER_ID_PREFIX="BITCOIN_"
HEADER_ID_SUFFIX="_H"
REGEXP_EXCLUDE_FILES_WITH_PREFIX="src/(crypto/ctaes/|leveldb/|secp256k1/|test/fuzz/FuzzedDataProvider.h|tinyformat.h|univalue/)"
EXIT_CODE=0
for HEADER_FILE in $(git ls-files -- "*.h" | grep -vE "^${REGEXP_EXCLUDE_FILES_WITH_PREFIX}")
do
HEADER_ID_BASE=$(cut -f2- -d/ <<< "${HEADER_FILE}" | sed "s/\.h$//g" | tr / _ | tr "[:lower:]" "[:upper:]")
HEADER_ID="${HEADER_ID_PREFIX}${HEADER_ID_BASE}${HEADER_ID_SUFFIX}"
if [[ $(grep -cE "^#(ifndef|define) ${HEADER_ID}" "${HEADER_FILE}") != 2 ]]; then
echo "${HEADER_FILE} seems to be missing the expected include guard:"
echo " #ifndef ${HEADER_ID}"
echo " #define ${HEADER_ID}"
echo " ..."
echo " #endif // ${HEADER_ID}"
echo
EXIT_CODE=1
fi
done
exit ${EXIT_CODE}
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