| #!/usr/bin/env python3.8 |
| # 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 os |
| import re |
| import sys |
| |
| |
| def trim_comments_and_redundant_whitespace(source): |
| normalized = '' |
| for line in source.splitlines(): |
| # remove comments |
| line = re.sub(r'//.*$', '', line) |
| |
| # collapse spaces |
| line = re.sub(r'\s+', ' ', line.strip()) |
| |
| if line: |
| normalized += line + '\n' |
| |
| return normalized |
| |
| |
| def main(): |
| parser = argparse.ArgumentParser( |
| 'Merges FIDL files to a single normalized output.') |
| parser.add_argument('--out', help='Path to the output file', required=True) |
| parser.add_argument('--files', help='List of library sources', nargs='+') |
| args = parser.parse_args() |
| |
| with open(args.out, 'w') as out_file: |
| for f in args.files: |
| with open(f, 'r') as in_file: |
| contents = str(in_file.read()) |
| normalized = trim_comments_and_redundant_whitespace(contents) |
| out_file.write(normalized) |
| |
| return 0 |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |