blob: fd674c099e1f88bebbcd1ccc0f1489833e9f24f0 [file] [log] [blame]
#!/usr/bin/env python
# Copyright (C) 2017 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import re
import sys
def fix_guards(fpath, checkonly):
with open(fpath, 'rb') as f:
lines = [l.strip('\n') for l in f.readlines()]
res = []
guard = re.sub(r'[^a-zA-Z0-9_-]', '_', fpath.upper()) + '_'
replacements = 0
endif_line_idx = -1
for line_idx in xrange(len(lines) - 1, -1, -1):
if lines[line_idx].startswith('#endif'):
endif_line_idx = line_idx
break
assert endif_line_idx > 0, fpath
line_idx = 0
for line in lines:
if replacements == 0 and line.startswith('#ifndef '):
line = '#ifndef ' + guard
replacements = 1
elif replacements == 1 and line.startswith('#define '):
line = '#define ' + guard
replacements = 2
elif line_idx == endif_line_idx and replacements == 2:
assert(line.startswith('#endif'))
line = '#endif // ' + guard
res.append(line)
line_idx += 1
if res == lines:
return 0
if checkonly:
print >>sys.stderr, 'Wrong #include guards in %s' % fpath
return 1
with open(fpath, 'w') as f:
f.write('\n'.join(res) + '\n')
return 1
def main():
checkonly = '--check-only' in sys.argv
num_files_changed = 0
for topdir in ('src', 'include', 'test'):
for root, dirs, files in os.walk(topdir):
for name in files:
if not name.endswith('.h'):
continue
fpath = os.path.join(root, name)
num_files_changed += fix_guards(fpath, checkonly)
if checkonly:
return 0 if num_files_changed == 0 else 1
else:
print '%d files changed' % num_files_changed
if __name__ == '__main__':
sys.exit(main())