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#!/usr/bin/env python3
#
# Copyright (c) 2018-2022 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.
import os
import re
import sys
from subprocess import check_output, CalledProcessError
from lint_ignore_dirs import SHARED_EXCLUDED_SUBTREES
EXCLUDED_DIRS = ["contrib/devtools/bitcoin-tidy/",
] + SHARED_EXCLUDED_SUBTREES
EXPECTED_BOOST_INCLUDES = ["boost/date_time/posix_time/posix_time.hpp",
"boost/multi_index/detail/hash_index_iterator.hpp",
"boost/multi_index/hashed_index.hpp",
"boost/multi_index/identity.hpp",
"boost/multi_index/indexed_by.hpp",
"boost/multi_index/ordered_index.hpp",
"boost/multi_index/sequenced_index.hpp",
"boost/multi_index/tag.hpp",
"boost/multi_index_container.hpp",
"boost/operators.hpp",
"boost/process.hpp",
"boost/signals2/connection.hpp",
"boost/signals2/optional_last_value.hpp",
"boost/signals2/signal.hpp",
"boost/test/included/unit_test.hpp",
"boost/test/unit_test.hpp",
"boost/tuple/tuple.hpp",
]
def get_toplevel():
return check_output(["git", "rev-parse", "--show-toplevel"], text=True, encoding="utf8").rstrip("\n")
def list_files_by_suffix(suffixes):
exclude_args = [":(exclude)" + dir for dir in EXCLUDED_DIRS]
files_list = check_output(["git", "ls-files", "src"] + exclude_args, text=True, encoding="utf8").splitlines()
return [file for file in files_list if file.endswith(suffixes)]
def find_duplicate_includes(include_list):
tempset = set()
duplicates = set()
for inclusion in include_list:
if inclusion in tempset:
duplicates.add(inclusion)
else:
tempset.add(inclusion)
return duplicates
def find_included_cpps():
included_cpps = list()
try:
included_cpps = check_output(["git", "grep", "-E", r"^#include [<\"][^>\"]+\.cpp[>\"]", "--", "*.cpp", "*.h"], text=True, encoding="utf8").splitlines()
except CalledProcessError as e:
if e.returncode > 1:
raise e
return included_cpps
def find_extra_boosts():
included_boosts = list()
filtered_included_boost_set = set()
exclusion_set = set()
try:
included_boosts = check_output(["git", "grep", "-E", r"^#include <boost/", "--", "*.cpp", "*.h"], text=True, encoding="utf8").splitlines()
except CalledProcessError as e:
if e.returncode > 1:
raise e
for boost in included_boosts:
filtered_included_boost_set.add(re.findall(r'(?<=\<).+?(?=\>)', boost)[0])
for expected_boost in EXPECTED_BOOST_INCLUDES:
for boost in filtered_included_boost_set:
if expected_boost in boost:
exclusion_set.add(boost)
extra_boosts = set(filtered_included_boost_set.difference(exclusion_set))
return extra_boosts
def find_quote_syntax_inclusions():
exclude_args = [":(exclude)" + dir for dir in EXCLUDED_DIRS]
quote_syntax_inclusions = list()
try:
quote_syntax_inclusions = check_output(["git", "grep", r"^#include \"", "--", "*.cpp", "*.h"] + exclude_args, text=True, encoding="utf8").splitlines()
except CalledProcessError as e:
if e.returncode > 1:
raise e
return quote_syntax_inclusions
def main():
exit_code = 0
os.chdir(get_toplevel())
# Check for duplicate includes
for filename in list_files_by_suffix((".cpp", ".h")):
with open(filename, "r", encoding="utf8") as file:
include_list = [line.rstrip("\n") for line in file if re.match(r"^#include", line)]
duplicates = find_duplicate_includes(include_list)
if duplicates:
print(f"Duplicate include(s) in {filename}:")
for duplicate in duplicates:
print(duplicate)
print("")
exit_code = 1
# Check if code includes .cpp-files
included_cpps = find_included_cpps()
if included_cpps:
print("The following files #include .cpp files:")
for included_cpp in included_cpps:
print(included_cpp)
print("")
exit_code = 1
# Guard against accidental introduction of new Boost dependencies
extra_boosts = find_extra_boosts()
if extra_boosts:
for boost in extra_boosts:
print(f"A new Boost dependency in the form of \"{boost}\" appears to have been introduced:")
print(check_output(["git", "grep", boost, "--", "*.cpp", "*.h"], text=True, encoding="utf8"))
exit_code = 1
# Check if Boost dependencies are no longer used
for expected_boost in EXPECTED_BOOST_INCLUDES:
try:
check_output(["git", "grep", "-q", r"^#include <%s>" % expected_boost, "--", "*.cpp", "*.h"], text=True, encoding="utf8")
except CalledProcessError as e:
if e.returncode > 1:
raise e
else:
print(f"Good job! The Boost dependency \"{expected_boost}\" is no longer used. "
"Please remove it from EXPECTED_BOOST_INCLUDES in test/lint/lint-includes.py "
"to make sure this dependency is not accidentally reintroduced.\n")
exit_code = 1
# Enforce bracket syntax includes
quote_syntax_inclusions = find_quote_syntax_inclusions()
if quote_syntax_inclusions:
print("Please use bracket syntax includes (\"#include <foo.h>\") instead of quote syntax includes:")
for quote_syntax_inclusion in quote_syntax_inclusions:
print(quote_syntax_inclusion)
exit_code = 1
sys.exit(exit_code)
if __name__ == "__main__":
main()
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