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#!/usr/bin/env 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.
"""This module fetches and prints the dependencies given a benchmark."""
import os
import sys
from core import path_util
path_util.AddCatapultBaseToPath()
from catapult_base import cloud_storage
path_util.AddTelemetryToPath()
from telemetry import benchmark_runner
from chrome_telemetry_build import chromium_config
def _FetchDependenciesIfNeeded(story_set):
""" Download files needed by a user story set. """
# Download files in serving_dirs.
serving_dirs = story_set.serving_dirs
for directory in serving_dirs:
cloud_storage.GetFilesInDirectoryIfChanged(directory, story_set.bucket)
# Download WPR files.
if any(not story.is_local for story in story_set):
story_set.wpr_archive_info.DownloadArchivesIfNeeded()
def _EnumerateDependencies(story_set):
"""Enumerates paths of files needed by a user story set."""
deps = set()
# Enumerate WPRs
for story in story_set:
deps.add(story_set.WprFilePathForStory(story))
# Enumerate files in serving_dirs
for directory in story_set.serving_dirs:
if not os.path.isdir(directory):
raise ValueError('Must provide a valid directory.')
# Don't allow the root directory to be a serving_dir.
if directory == os.path.abspath(os.sep):
raise ValueError('Trying to serve root directory from HTTP server.')
for dirpath, _, filenames in os.walk(directory):
for filename in filenames:
path_name, extension = os.path.splitext(
os.path.join(dirpath, filename))
if extension == '.sha1':
deps.add(path_name)
# Return relative paths.
prefix_len = len(os.path.realpath(path_util.GetChromiumSrcDir())) + 1
return [dep[prefix_len:] for dep in deps if dep]
def _show_usage():
print ('Usage: %s benchmark_name\n'
'Fetch the dependencies of benchmark_name.' % sys.argv[0])
def main(output=sys.stdout):
config = chromium_config.ChromiumConfig(
top_level_dir=path_util.GetPerfDir(),
benchmark_dirs=[os.path.join(path_util.GetPerfDir(), 'benchmarks')])
name = sys.argv[1]
benchmark = benchmark_runner.GetBenchmarkByName(name, config)
if not benchmark:
raise ValueError('No such benchmark: %s' % name)
# Download files according to specified benchmark.
story_set = benchmark().CreateStorySet(None)
_FetchDependenciesIfNeeded(story_set)
# Print files downloaded.
deps = _EnumerateDependencies(story_set)
for dep in deps:
print >> output, dep
if __name__ == '__main__':
if len(sys.argv) != 2 or sys.argv[1][0] == '-':
_show_usage()
else:
main()
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