1#!/usr/bin/env python2
2#
3# Copyright 2017 The Chromium OS Authors. All rights reserved.
4# Use of this source code is governed by a BSD-style license that can be
5# found in the LICENSE file.
6#
7# pylint: disable=cros-logging-import
8
9"""Script to help generate json format report from raw data."""
10from __future__ import print_function
11
12import argparse
13import config
14import json
15import logging
16import sys
17
18# Turn the logging level to INFO before importing other autotest
19# code, to avoid having failed import logging messages confuse the
20# test_droid user.
21logging.basicConfig(level=logging.INFO)
22
23
24def _parse_arguments_internal(argv):
25    parser = argparse.ArgumentParser(description='Convert result to JSON'
26                                     'format')
27
28    parser.add_argument(
29        '-b', '--bench', help='Generate JSON format file for which benchmark.')
30
31    parser.add_argument(
32        '-i', '--input', help='Specify the input result file name.')
33
34    parser.add_argument(
35        '-o', '--output', help='Specify the output JSON format result file')
36
37    parser.add_argument(
38        '-p',
39        '--platform',
40        help='Indicate the platform(experiment or device) name '
41        'to be shown in JSON')
42
43    parser.add_argument(
44        '--iterations',
45        type=int,
46        help='How many iterations does the result include.')
47    return parser.parse_args(argv)
48
49# Collect data and generate JSON {} tuple from benchmark result
50def collect_data(infile, bench, it):
51    result_dict = {}
52    with open(infile + str(it)) as fin:
53        if bench not in config.bench_parser_dict:
54            logging.error('Please input the correct benchmark name.')
55            raise ValueError('Wrong benchmark name: %s' % bench)
56        parse = config.bench_parser_dict[bench]
57        result_dict = parse(bench, fin)
58    return result_dict
59
60# If there is no original output file, create a new one and init it.
61def create_outfile(outfile, bench):
62    with open(outfile, 'w') as fout:
63        obj_null = {'data': {bench.lower(): []}, 'platforms': []}
64        json.dump(obj_null, fout)
65
66# Seek the original output file and try to add new result into it.
67def get_outfile(outfile, bench):
68    try:
69        return open(outfile)
70    except IOError:
71        create_outfile(outfile, bench)
72        return open(outfile)
73
74def main(argv):
75    arguments = _parse_arguments_internal(argv)
76
77    bench = arguments.bench
78    infile = arguments.input
79    outfile = arguments.output
80    platform = arguments.platform
81    iteration = arguments.iterations
82
83    result = []
84    for i in xrange(iteration):
85        result += collect_data(infile, bench, i)
86
87    with get_outfile(outfile, bench) as fout:
88        obj = json.load(fout)
89    obj['platforms'].append(platform)
90    obj['data'][bench.lower()].append(result)
91    with open(outfile, 'w') as fout:
92        json.dump(obj, fout)
93
94
95if __name__ == '__main__':
96    main(sys.argv[1:])
97