| #!/usr/bin/env python2.7 |
| # Copyright 2020 The Fuchsia Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import argparse |
| import fileinput |
| import os |
| import re |
| import sys |
| |
| |
| def main(): |
| parser = argparse.ArgumentParser( |
| description='Insert blank lines between target deps in build files') |
| parser.add_argument('--file', |
| help='path to the BUILD.gn file', |
| required=True) |
| parser.add_argument('--target', |
| help='name of the target to process', |
| required=True) |
| args = parser.parse_args() |
| |
| if os.path.basename(args.file) != 'BUILD.gn': |
| print('Err, %s is not a build file!' % args.file) |
| return 1 |
| |
| in_target = True |
| bracket_count = 0 |
| for line in fileinput.FileInput(args.file, inplace=True): |
| match = re.match('^\s*([a-z][a-z_]*[a-z])\("([^"]+)"\)\s?{$', line) |
| if match: |
| if match.group(2) == args.target: |
| in_target = True |
| bracket_count = 1 |
| sys.stdout.write(line) |
| continue |
| if not in_target: |
| sys.stdout.write(line) |
| continue |
| bracket_count += line.count('{') |
| bracket_count -= line.count('}') |
| if bracket_count <= 0: |
| in_target = False |
| bracket_count = 0 |
| if in_target: |
| match = re.match('^\s*"[^"]+",\s*$', line) |
| if match: |
| sys.stdout.write('#------------------\n') |
| sys.stdout.write(line) |
| sys.stdout.write('#------------------\n') |
| continue |
| sys.stdout.write(line) |
| |
| return 0 |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |
