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#!/usr/bin/env bash
#
# Copyright (c) 2018-2020 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 for duplicate includes.
# Guard against accidental introduction of new Boost dependencies.
# Check includes: Check for duplicate includes. Enforce bracket syntax includes.
export LC_ALL=C
IGNORE_REGEXP="/(leveldb|secp256k1|minisketch|univalue|crc32c)/"
# cd to root folder of git repo for git ls-files to work properly
cd "$(dirname $0)/../.." || exit 1
filter_suffix() {
git ls-files | grep -E "^src/.*\.${1}"'$' | grep -Ev "${IGNORE_REGEXP}"
}
EXIT_CODE=0
for HEADER_FILE in $(filter_suffix h); do
DUPLICATE_INCLUDES_IN_HEADER_FILE=$(grep -E "^#include " < "${HEADER_FILE}" | sort | uniq -d)
if [[ ${DUPLICATE_INCLUDES_IN_HEADER_FILE} != "" ]]; then
echo "Duplicate include(s) in ${HEADER_FILE}:"
echo "${DUPLICATE_INCLUDES_IN_HEADER_FILE}"
echo
EXIT_CODE=1
fi
done
for CPP_FILE in $(filter_suffix cpp); do
DUPLICATE_INCLUDES_IN_CPP_FILE=$(grep -E "^#include " < "${CPP_FILE}" | sort | uniq -d)
if [[ ${DUPLICATE_INCLUDES_IN_CPP_FILE} != "" ]]; then
echo "Duplicate include(s) in ${CPP_FILE}:"
echo "${DUPLICATE_INCLUDES_IN_CPP_FILE}"
echo
EXIT_CODE=1
fi
done
INCLUDED_CPP_FILES=$(git grep -E "^#include [<\"][^>\"]+\.cpp[>\"]" -- "*.cpp" "*.h")
if [[ ${INCLUDED_CPP_FILES} != "" ]]; then
echo "The following files #include .cpp files:"
echo "${INCLUDED_CPP_FILES}"
echo
EXIT_CODE=1
fi
EXPECTED_BOOST_INCLUDES=(
boost/algorithm/string.hpp
boost/algorithm/string/classification.hpp
boost/algorithm/string/replace.hpp
boost/algorithm/string/split.hpp
boost/date_time/posix_time/posix_time.hpp
boost/filesystem.hpp
boost/filesystem/fstream.hpp
boost/multi_index/hashed_index.hpp
boost/multi_index/ordered_index.hpp
boost/multi_index/sequenced_index.hpp
boost/multi_index_container.hpp
boost/process.hpp
boost/signals2/connection.hpp
boost/signals2/optional_last_value.hpp
boost/signals2/signal.hpp
boost/test/unit_test.hpp
)
for BOOST_INCLUDE in $(git grep '^#include <boost/' -- "*.cpp" "*.h" | cut -f2 -d: | cut -f2 -d'<' | cut -f1 -d'>' | sort -u); do
IS_EXPECTED_INCLUDE=0
for EXPECTED_BOOST_INCLUDE in "${EXPECTED_BOOST_INCLUDES[@]}"; do
if [[ "${BOOST_INCLUDE}" == "${EXPECTED_BOOST_INCLUDE}" ]]; then
IS_EXPECTED_INCLUDE=1
break
fi
done
if [[ ${IS_EXPECTED_INCLUDE} == 0 ]]; then
EXIT_CODE=1
echo "A new Boost dependency in the form of \"${BOOST_INCLUDE}\" appears to have been introduced:"
git grep "${BOOST_INCLUDE}" -- "*.cpp" "*.h"
echo
fi
done
for EXPECTED_BOOST_INCLUDE in "${EXPECTED_BOOST_INCLUDES[@]}"; do
if ! git grep -q "^#include <${EXPECTED_BOOST_INCLUDE}>" -- "*.cpp" "*.h"; then
echo "Good job! The Boost dependency \"${EXPECTED_BOOST_INCLUDE}\" is no longer used."
echo "Please remove it from EXPECTED_BOOST_INCLUDES in $0"
echo "to make sure this dependency is not accidentally reintroduced."
echo
EXIT_CODE=1
fi
done
QUOTE_SYNTAX_INCLUDES=$(git grep '^#include "' -- "*.cpp" "*.h" | grep -Ev "${IGNORE_REGEXP}")
if [[ ${QUOTE_SYNTAX_INCLUDES} != "" ]]; then
echo "Please use bracket syntax includes (\"#include <foo.h>\") instead of quote syntax includes:"
echo "${QUOTE_SYNTAX_INCLUDES}"
echo
EXIT_CODE=1
fi
exit ${EXIT_CODE}
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