#!/usr/bin/env python3
# Copyright 2017 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Runs resource_sizes.py on two apks and outputs the diff."""
import argparse
import json
import logging
import os
import subprocess
import sys
from pylib.constants import host_paths
with host_paths.SysPath(host_paths.BUILD_UTIL_PATH):
from lib.common import perf_tests_results_helper
with host_paths.SysPath(host_paths.TRACING_PATH):
from tracing.value import convert_chart_json # pylint: disable=import-error
_ANDROID_DIR = os.path.dirname(os.path.abspath(__file__))
with host_paths.SysPath(os.path.join(_ANDROID_DIR, 'gyp')):
from util import build_utils # pylint: disable=import-error
_BASE_CHART = {
'format_version': '0.1',
'benchmark_name': 'resource_sizes_diff',
'benchmark_description': 'APK resource size diff information',
'trace_rerun_options': [],
'charts': {},
}
_CHARTJSON_FILENAME = 'results-chart.json'
_HISTOGRAMS_FILENAME = 'perf_results.json'
def DiffResults(chartjson, base_results, diff_results):
"""Reports the diff between the two given results.
Args:
chartjson: A dictionary that chartjson results will be placed in, or None
to only print results.
base_results: The chartjson-formatted size results of the base APK.
diff_results: The chartjson-formatted size results of the diff APK.
"""
for graph_title, graph in base_results['charts'].items():
for trace_title, trace in graph.items():
perf_tests_results_helper.ReportPerfResult(
chartjson, graph_title, trace_title,
diff_results['charts'][graph_title][trace_title]['value']
- trace['value'],
trace['units'], trace['improvement_direction'],
trace['important'])
def AddIntermediateResults(chartjson, base_results, diff_results):
"""Copies the intermediate size results into the output chartjson.
Args:
chartjson: A dictionary that chartjson results will be placed in.
base_results: The chartjson-formatted size results of the base APK.
diff_results: The chartjson-formatted size results of the diff APK.
"""
for graph_title, graph in base_results['charts'].items():
for trace_title, trace in graph.items():
perf_tests_results_helper.ReportPerfResult(
chartjson, graph_title + '_base_apk', trace_title,
trace['value'], trace['units'], trace['improvement_direction'],
trace['important'])
# Both base_results and diff_results should have the same charts/traces, but
# loop over them separately in case they don't
for graph_title, graph in diff_results['charts'].items():
for trace_title, trace in graph.items():
perf_tests_results_helper.ReportPerfResult(
chartjson, graph_title + '_diff_apk', trace_title,
trace['value'], trace['units'], trace['improvement_direction'],
trace['important'])
def _CreateArgparser():
def chromium_path(arg):
if arg.startswith('//'):
return os.path.join(host_paths.DIR_SOURCE_ROOT, arg[2:])
return arg
argparser = argparse.ArgumentParser(
description='Diff resource sizes of two APKs. Arguments not listed here '
'will be passed on to both invocations of resource_sizes.py.')
argparser.add_argument('--chromium-output-directory-base',
dest='out_dir_base',
type=chromium_path,
help='Location of the build artifacts for the base '
'APK, i.e. what the size increase/decrease will '
'be measured from.')
argparser.add_argument('--chromium-output-directory-diff',
dest='out_dir_diff',
type=chromium_path,
help='Location of the build artifacts for the diff '
'APK.')
argparser.add_argument('--chartjson',
action='store_true',
help='DEPRECATED. Use --output-format=chartjson '
'instead.')
argparser.add_argument('--output-format',
choices=['chartjson', 'histograms'],
help='Output the results to a file in the given '
'format instead of printing the results.')
argparser.add_argument('--include-intermediate-results',
action='store_true',
help='Include the results from the resource_sizes.py '
'runs in the chartjson output.')
argparser.add_argument('--output-dir',
default='.',
type=chromium_path,
help='Directory to save chartjson to.')
argparser.add_argument('--base-apk',
required=True,
type=chromium_path,
help='Path to the base APK, i.e. what the size '
'increase/decrease will be measured from.')
argparser.add_argument('--diff-apk',
required=True,
type=chromium_path,
help='Path to the diff APK, i.e. the APK whose size '
'increase/decrease will be measured against the '
'base APK.')
return argparser
def main():
args, unknown_args = _CreateArgparser().parse_known_args()
# TODO(bsheedy): Remove this once all uses of --chartjson are removed.
if args.chartjson:
args.output_format = 'chartjson'
chartjson = _BASE_CHART.copy() if args.output_format else None
with build_utils.TempDir() as base_dir, build_utils.TempDir() as diff_dir:
# Run resource_sizes.py on the two APKs
resource_sizes_path = os.path.join(_ANDROID_DIR, 'resource_sizes.py')
shared_args = (['python', resource_sizes_path, '--output-format=chartjson']
+ unknown_args)
base_args = shared_args + ['--output-dir', base_dir, args.base_apk]
if args.out_dir_base:
base_args += ['--chromium-output-directory', args.out_dir_base]
try:
subprocess.check_output(base_args, stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
print(e.output)
raise
diff_args = shared_args + ['--output-dir', diff_dir, args.diff_apk]
if args.out_dir_diff:
diff_args += ['--chromium-output-directory', args.out_dir_diff]
try:
subprocess.check_output(diff_args, stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
print(e.output)
raise
# Combine the separate results
with open(os.path.join(base_dir, _CHARTJSON_FILENAME)) as base_file:
base_results = json.load(base_file)
with open(os.path.join(diff_dir, _CHARTJSON_FILENAME)) as diff_file:
diff_results = json.load(diff_file)
DiffResults(chartjson, base_results, diff_results)
if args.include_intermediate_results:
AddIntermediateResults(chartjson, base_results, diff_results)
if args.output_format:
chartjson_path = os.path.join(os.path.abspath(args.output_dir),
_CHARTJSON_FILENAME)
logging.critical('Dumping diff chartjson to %s', chartjson_path)
with open(chartjson_path, 'w') as outfile:
json.dump(chartjson, outfile)
if args.output_format == 'histograms':
histogram_result = convert_chart_json.ConvertChartJson(chartjson_path)
if histogram_result.returncode != 0:
logging.error('chartjson conversion failed with error: %s',
histogram_result.stdout)
return 1
histogram_path = os.path.join(os.path.abspath(args.output_dir),
'perf_results.json')
logging.critical('Dumping diff histograms to %s', histogram_path)
with open(histogram_path, 'w') as json_file:
json_file.write(histogram_result.stdout)
return 0
if __name__ == '__main__':
sys.exit(main())
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