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101 lines
2.8 KiB
101 lines
2.8 KiB
#!/usr/bin/env python3
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#
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# Copyright (c) 2018-2022 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""
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Check include guards.
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"""
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import re
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import sys
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from subprocess import check_output
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from typing import List
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HEADER_ID_PREFIX = 'BITCOIN_'
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HEADER_ID_SUFFIX = '_H'
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EXCLUDE_FILES_WITH_PREFIX = ['contrib/devtools/bitcoin-tidy',
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'src/crypto/ctaes',
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'src/leveldb',
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'src/crc32c',
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'src/secp256k1',
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'src/minisketch',
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'src/tinyformat.h',
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'src/bench/nanobench.h',
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'src/test/fuzz/FuzzedDataProvider.h']
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def _get_header_file_lst() -> List[str]:
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""" Helper function to get a list of header filepaths to be
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checked for include guards.
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"""
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git_cmd_lst = ['git', 'ls-files', '--', '*.h']
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header_file_lst = check_output(
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git_cmd_lst).decode('utf-8').splitlines()
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header_file_lst = [hf for hf in header_file_lst
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if not any(ef in hf for ef
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in EXCLUDE_FILES_WITH_PREFIX)]
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return header_file_lst
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def _get_header_id(header_file: str) -> str:
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""" Helper function to get the header id from a header file
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string.
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eg: 'src/wallet/walletdb.h' -> 'BITCOIN_WALLET_WALLETDB_H'
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Args:
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header_file: Filepath to header file.
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Returns:
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The header id.
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"""
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header_id_base = header_file.split('/')[1:]
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header_id_base = '_'.join(header_id_base)
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header_id_base = header_id_base.replace('.h', '').replace('-', '_')
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header_id_base = header_id_base.upper()
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header_id = f'{HEADER_ID_PREFIX}{header_id_base}{HEADER_ID_SUFFIX}'
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return header_id
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def main():
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exit_code = 0
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header_file_lst = _get_header_file_lst()
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for header_file in header_file_lst:
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header_id = _get_header_id(header_file)
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regex_pattern = f'^#(ifndef|define|endif //) {header_id}'
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with open(header_file, 'r', encoding='utf-8') as f:
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header_file_contents = f.readlines()
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count = 0
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for header_file_contents_string in header_file_contents:
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include_guard_lst = re.findall(
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regex_pattern, header_file_contents_string)
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count += len(include_guard_lst)
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if count != 3:
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print(f'{header_file} seems to be missing the expected '
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'include guard:')
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print(f' #ifndef {header_id}')
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print(f' #define {header_id}')
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print(' ...')
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print(f' #endif // {header_id}\n')
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exit_code = 1
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sys.exit(exit_code)
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if __name__ == '__main__':
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main()
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