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# Copyright 2013: Mirantis Inc.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# yardstick comment: this is a modified copy of rally/rally/common/utils.py
import os
import sys
from oslo_utils import importutils
import yardstick
# Decorator for cli-args
def cliargs(*args, **kwargs):
def _decorator(func):
func.__dict__.setdefault('arguments', []).insert(0, (args, kwargs))
return func
return _decorator
def itersubclasses(cls, _seen=None):
"""Generator over all subclasses of a given class in depth first order."""
if not isinstance(cls, type):
raise TypeError("itersubclasses must be called with "
"new-style classes, not %.100r" % cls)
_seen = _seen or set()
try:
subs = cls.__subclasses__()
except TypeError: # fails only when cls is type
subs = cls.__subclasses__(cls)
for sub in subs:
if sub not in _seen:
_seen.add(sub)
yield sub
for sub in itersubclasses(sub, _seen):
yield sub
def try_append_module(name, modules):
if name not in modules:
modules[name] = importutils.import_module(name)
def import_modules_from_package(package):
"""Import modules from package and append into sys.modules
:param: package - Full package name. For example: rally.deploy.engines
"""
path = [os.path.dirname(yardstick.__file__), ".."] + package.split(".")
path = os.path.join(*path)
for root, dirs, files in os.walk(path):
for filename in files:
if filename.startswith("__") or not filename.endswith(".py"):
continue
new_package = ".".join(root.split(os.sep)).split("....")[1]
module_name = "%s.%s" % (new_package, filename[:-3])
try_append_module(module_name, sys.modules)
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