dfd8808526
The methodology used to generate this CL is documented in https://crbug.com/1098010#c95. No-Try: true No-Presubmit: true Bug: 1098010 Change-Id: I3a8a7b150e7bd64690534727150646081df50439 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3900697 Reviewed-by: Mark Mentovai <mark@chromium.org> Auto-Submit: Avi Drissman <avi@chromium.org> Owners-Override: Avi Drissman <avi@chromium.org> Commit-Queue: Avi Drissman <avi@chromium.org> Cr-Commit-Position: refs/heads/main@{#1047644}
72 lines
2.4 KiB
Python
Executable File
72 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright 2021 The Chromium Authors
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Applies cpplint build/header_guard recommendations.
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Reads cpplint build/header_guard recommendations from stdin and applies them.
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Run cpplint for a single header:
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cpplint.py --filter=-,+build/header_guard foo.h 2>&1 | grep build/header_guard
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Run cpplint for all headers in dir foo in parallel:
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find foo -name '*.h' | \
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xargs parallel cpplint.py --filter=-,+build/header_guard -- 2>&1 | \
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grep build/header_guard
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"""
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import sys
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IFNDEF_MSG = ' #ifndef header guard has wrong style, please use'
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ENDIF_MSG_START = ' #endif line should be "'
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ENDIF_MSG_END = '" [build/header_guard] [5]'
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NO_GUARD_MSG = ' No #ifndef header guard found, suggested CPP variable is'
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def process_cpplint_recommendations(cpplint_data):
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root = sys.argv[1] if len(sys.argv) > 1 else ''
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root = "_".join(root.upper().strip(r'[/]+').split('/'))+"_"
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for entry in cpplint_data:
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entry = entry.split(':')
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header = entry[0]
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line = entry[1]
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index = int(line) - 1
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msg = entry[2].rstrip()
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if msg == IFNDEF_MSG:
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assert len(entry) == 4
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with open(header, 'rb') as f:
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content = f.readlines()
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if not content[index + 1].startswith(b'#define '):
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raise Exception('Missing #define: %s:%d' % (header, index + 2))
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guard = entry[3].split(' ')[1]
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guard = guard.replace(root, '') if len(root) > 1 else guard
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content[index] = ('#ifndef %s\n' % guard).encode('utf-8')
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# Since cpplint does not print messages for the #define line, just
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# blindly overwrite the #define that was here.
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content[index + 1] = ('#define %s\n' % guard).encode('utf-8')
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elif msg.startswith(ENDIF_MSG_START):
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assert len(entry) == 3
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assert msg.endswith(ENDIF_MSG_END)
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with open(header, 'rb') as f:
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content = f.readlines()
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endif = msg[len(ENDIF_MSG_START):-len(ENDIF_MSG_END)]
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endif = endif.replace(root, '') if len(root) > 1 else endif
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content[index] = ('%s\n' % endif).encode('utf-8')
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elif msg == NO_GUARD_MSG:
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assert index == -1
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continue
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else:
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raise Exception('Unknown cpplint message: %s for %s:%s' %
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(msg, header, line))
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with open(header, 'wb') as f:
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f.writelines(content)
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if __name__ == '__main__':
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process_cpplint_recommendations(sys.stdin)
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