| #!/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()) |