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##############################################################################
# Copyright (c) 2015 Huawei Technologies Co.,Ltd and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import copy
import os
from oslo_serialization import jsonutils
from yardstick.common import process
class Yardstick(object):
"""Create and represent separate yardstick installation.
Usage:
yardstick = yardstick()
output = yardstick("runner list")
"""
def __init__(self):
self._args = ["yardstick"]
self.env = copy.deepcopy(os.environ)
def __call__(self, cmd, getjson=False):
"""Call yardstick in the shell
:param cmd: Yardstick command.
:param getjson: If the output is a JSON object, it's deserialized.
:return Command output string.
"""
if not isinstance(cmd, list):
cmd = cmd.split(" ")
cmd = self._args + cmd
output = process.execute(cmd=cmd)
if getjson:
return jsonutils.loads(output)
return output
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