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72 lines
2.3 KiB
Python
72 lines
2.3 KiB
Python
"""
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Copyright (c) 2018, Arm Limited
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SPDX-License-Identifier: Apache-2.0
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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UNIT TEST UTILITIES
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"""
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import platform
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import subprocess
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import logging
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import sys
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def is_tool(name):
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"""
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Test if tool is found in PATH
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@param name: executable name
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@return: true if tool found, false otherwise
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"""
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cmd = "where" if platform.system() == "Windows" else "which"
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try:
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subprocess.check_output([cmd, name], stderr=subprocess.STDOUT)
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return True
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except subprocess.CalledProcessError:
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return False
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def execute_program(args, error_msg="An error occurred!", success_msg=None):
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"""
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Execute program in a subprocess with given arguments
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@param args: program and its arguments in a list
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@param success_msg: message to show in case of success
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@param error_msg: message to show in case of failure
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"""
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try:
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process = subprocess.Popen(args,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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# Output is stripped to remove newline character. logging adds its own
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# so we avoid double newlines.
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# Because the process can terminate before the loop has read all lines,
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# we read the output remnant just in case. Otherwise we lose it.
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while process.poll() is None:
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logging.info(process.stdout.readline().decode('utf8').rstrip('\n'))
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logging.info(process.stdout.read().decode('utf8').rstrip('\n'))
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retcode = process.wait()
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if retcode:
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raise subprocess.CalledProcessError(retcode, args)
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elif success_msg:
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logging.info(success_msg)
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except subprocess.CalledProcessError as error:
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logging.error(error_msg)
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sys.exit(error.returncode)
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