mirror of
https://github.com/dolphin-emu/dolphin.git
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99 lines
3.0 KiB
Python
Executable File
99 lines
3.0 KiB
Python
Executable File
#! /usr/bin/env python
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"""
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check-includes.py <file...>
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Checks if the includes are sorted properly and following the "system headers
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before local headers" rule.
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Ignores what is in #if blocks to avoid false negatives.
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"""
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import re
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import sys
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def exclude_if_blocks(lines):
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'''Removes lines from #if ... #endif blocks.'''
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level = 0
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for l in lines:
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if l.startswith('#if'):
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level += 1
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elif l.startswith('#endif'):
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level -= 1
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elif level == 0:
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yield l
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def filter_includes(lines):
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'''Removes lines that are not #include and keeps only the file part.'''
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for l in lines:
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if l.startswith('#include'):
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if 'NOLINT' not in l:
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yield l.split(' ')[1]
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class IncludeFileSorter(object):
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def __init__(self, path):
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self.path = path
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def __lt__(self, other):
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'''Sorting function for include files.
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* System headers go before local headers (check the first character -
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if it's different, then the one starting with " is the 'larger').
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* Then, iterate on all the path components:
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* If they are equal, try to continue to the next path component.
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* If not, return whether the path component are smaller/larger.
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* Paths with less components should go first, so after iterating, check
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whether one path still has some / in it.
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'''
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a, b = self.path, other.path
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if a[0] != b[0]:
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return False if a[0] == '"' else True
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a, b = a[1:-1].lower(), b[1:-1].lower()
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while '/' in a and '/' in b:
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ca, a = a.split('/', 1)
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cb, b = b.split('/', 1)
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if ca != cb:
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return ca < cb
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if '/' in a:
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return False
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elif '/' in b:
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return True
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else:
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return a < b
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def __eq__(self, other):
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return self.path.lower() == other.path.lower()
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def sort_includes(includes):
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return sorted(includes, key=IncludeFileSorter)
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def show_differences(bad, good):
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bad = [' Current'] + bad
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good = [' Should be'] + good
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longest = max(len(i) for i in bad)
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padded = [i + ' ' * (longest + 4 - len(i)) for i in bad]
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return '\n'.join('%s%s' % t for t in zip(padded, good))
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def check_file(path):
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print('Checking %s' % path)
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try:
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try:
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data = open(path, encoding='utf-8').read()
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except TypeError: # py2
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data = open(path).read().decode('utf-8')
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except UnicodeDecodeError:
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sys.stderr.write('%s: bad UTF-8 data\n' % path)
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return
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lines = (l.strip() for l in data.split('\n'))
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lines = exclude_if_blocks(lines)
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includes = list(filter_includes(lines))
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sorted_includes = sort_includes(includes)
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if includes != sorted_includes:
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sys.stderr.write('%s: includes are incorrect\n' % path)
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sys.stderr.write(show_differences(includes, sorted_includes) + '\n')
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if __name__ == '__main__':
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for path in sys.argv[1:]:
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check_file(path)
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