| #! /usr/bin/python |
| # Copyright 2015 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Convert trace output for Chrome. |
| |
| Takes a loading trace from 'analyze.py log_requests' and outputs a zip'd json |
| that can be loaded by chrome's about:tracing.. |
| """ |
| |
| import argparse |
| import gzip |
| import json |
| |
| if __name__ == '__main__': |
| parser = argparse.ArgumentParser() |
| parser.add_argument('input') |
| parser.add_argument('output') |
| args = parser.parse_args() |
| with gzip.GzipFile(args.output, 'w') as output_f, file(args.input) as input_f: |
| events = json.load(input_f)['tracing_track']['events'] |
| json.dump({'traceEvents': events, 'metadata': {}}, output_f) |
