#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
#
"""Cross-platform utilities for creating subprocesses.
For internal use only; no backwards-compatibility guarantees.
"""
# pytype: skip-file
from __future__ import absolute_import
import platform
import subprocess
import traceback
from typing import TYPE_CHECKING
# On Windows, we need to use shell=True when creating subprocesses for binary
# paths to be resolved correctly.
force_shell = platform.system() == 'Windows'
# We mimic the interface of the standard Python subprocess module.
PIPE = subprocess.PIPE
STDOUT = subprocess.STDOUT
CalledProcessError = subprocess.CalledProcessError
if TYPE_CHECKING:
call = subprocess.call
check_call = subprocess.check_call
check_output = subprocess.check_output
Popen = subprocess.Popen
else:
[docs] def call(*args, **kwargs):
if force_shell:
kwargs['shell'] = True
try:
out = subprocess.call(*args, **kwargs)
except OSError:
raise RuntimeError("Executable {} not found".format(args[0]))
except subprocess.CalledProcessError as error:
if isinstance(args, tuple) and (args[0][2] == "pip"):
raise RuntimeError( \
"Full traceback: {}\n Pip install failed for package: {} \
\n Output from execution of subprocess: {}" \
.format(traceback.format_exc(), args[0][6], error. output))
else:
raise RuntimeError("Full trace: {}\
\n Output of the failed child process: {} " \
.format(traceback.format_exc(), error.output))
return out
[docs] def check_call(*args, **kwargs):
if force_shell:
kwargs['shell'] = True
try:
out = subprocess.check_call(*args, **kwargs)
except OSError:
raise RuntimeError("Executable {} not found".format(args[0]))
except subprocess.CalledProcessError as error:
if isinstance(args, tuple) and (args[0][2] == "pip"):
raise RuntimeError( \
"Full traceback: {} \n Pip install failed for package: {} \
\n Output from execution of subprocess: {}" \
.format(traceback.format_exc(), args[0][6], error.output))
else:
raise RuntimeError("Full trace: {} \
\n Output of the failed child process: {}" \
.format(traceback.format_exc(), error.output))
return out
[docs] def check_output(*args, **kwargs):
if force_shell:
kwargs['shell'] = True
try:
out = subprocess.check_output(*args, **kwargs)
except OSError:
raise RuntimeError("Executable {} not found".format(args[0]))
except subprocess.CalledProcessError as error:
if isinstance(args, tuple) and (args[0][2] == "pip"):
raise RuntimeError( \
"Full traceback: {} \n Pip install failed for package: {} \
\n Output from execution of subprocess: {}" \
.format(traceback.format_exc(), args[0][6], error.output))
else:
raise RuntimeError("Full trace: {}, \
output of the failed child process {} "\
.format(traceback.format_exc(), error.output))
return out
[docs] def Popen(*args, **kwargs):
if force_shell:
kwargs['shell'] = True
return subprocess.Popen(*args, **kwargs)