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1# Copyright 2018 The Chromium Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5
6"""Writes a Perf-formated json file with stats about the given web file."""
7
8
9from __future__ import print_function
10import json
11import os
12import subprocess
13import sys
14
15
16def main():
17  input_file = sys.argv[1]
18  out_dir = sys.argv[2]
19  keystr = sys.argv[3]
20  propstr = sys.argv[4]
21  total_size_bytes_key = sys.argv[5]
22  magic_seperator = sys.argv[6]
23
24  results = {
25    'key': { },
26    'results': { }
27  }
28
29  props = propstr.split(' ')
30  for i in range(0, len(props), 2):
31    results[props[i]] = props[i+1]
32
33  keys = keystr.split(' ')
34  for i in range(0, len(keys), 2):
35    results['key'][keys[i]] = keys[i+1]
36
37  r = {
38    total_size_bytes_key: os.path.getsize(input_file)
39  }
40
41  # Make a copy to avoid destroying the hardlinked file.
42  # Swarming hardlinks in the builds from isolated cache.
43  temp_file = input_file + '_tmp'
44  subprocess.check_call(['cp', input_file, temp_file])
45  subprocess.check_call(['gzip', temp_file])
46
47  r['gzip_size_bytes'] = os.path.getsize(temp_file + '.gz')
48
49  name = os.path.basename(input_file)
50
51  print(magic_seperator)
52  results['results'][name] = {
53    # We need this top level layer 'config'/slice
54    # Other analysis methods (e.g. libskia) might have
55    # slices for data on the 'code' section, etc.
56    'default' : r,
57  }
58
59  # Make debugging easier
60  print(json.dumps(results, indent=2))
61
62  with open(os.path.join(out_dir, name+'.json'), 'w') as output:
63    output.write(json.dumps(results, indent=2))
64
65
66if __name__ == '__main__':
67  main()
68