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# 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.
#TODO(aiolos): Remove the debug logging once the entire Dependency Manager
#system has landed.
import logging
import os
from catapult_base import dependency_manager
from telemetry.core import exceptions
from telemetry.core import util
TELEMETRY_PROJECT_CONFIG = os.path.join(
util.GetTelemetryDir(), 'telemetry', 'internal', 'binary_dependencies.json')
_dependency_manager = None
def NeedsInit():
return not _dependency_manager
def InitDependencyManager(environment_config):
global _dependency_manager
if _dependency_manager:
raise exceptions.InitializationError(
'Trying to re-initialize the binary manager with config %s'
% environment_config)
configs = [dependency_manager.BaseConfig(TELEMETRY_PROJECT_CONFIG)]
if environment_config:
configs.insert(0, dependency_manager.BaseConfig(environment_config))
_dependency_manager = dependency_manager.DependencyManager(configs)
def FetchPath(binary_name, arch, platform):
""" Return a path to the appropriate executable for <binary_name>, downloading
from cloud storage if needed, or None if it cannot be found.
"""
logging.info('Called FetchPath for binary: %s on platform: %s and arch: %s'
% (binary_name, platform, arch))
if _dependency_manager is None:
raise exceptions.InitializationError(
'Called FetchPath with uninitialized binary manager.')
return _dependency_manager.FetchPath(
binary_name, '%s_%s' % (platform, arch), try_support_binaries=True)
def LocalPath(binary_name, arch, platform):
""" Return a local path to the given binary name, or None if an executable
cannot be found. Will not download the executable.
"""
logging.debug('Called LocalPath for binary: %s on platform: %s and arch: '
'%s' % (binary_name, platform, arch))
if _dependency_manager is None:
raise exceptions.InitializationError(
'Called LocalPath with uninitialized binary manager.')
return _dependency_manager.LocalPath(
binary_name, '%s_%s' % (platform, arch), try_support_binaries=True)
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