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# -*- coding: utf-8 -*-
#
# subprocess wrapper
#
# Copyright 2014-2022 Michael Buesch <m@bues.ch>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from __future__ import division, absolute_import, print_function, unicode_literals
#from awlsim.common.cython_support cimport * #@cy
from awlsim.common.compat import *
__all__ = [
"findExecutable",
"PopenWrapper",
]
import os
import os.path # Required for Micropython
import signal
if not isIronPython and not isMicroPython:
import subprocess
def findExecutable(executable):
if executable:
try:
import shutil
return shutil.which(executable)
except ImportError:
pass
try:
import distutils.spawn
return distutils.spawn.find_executable(executable)
except ImportError:
pass
if executable.startswith(os.path.sep):
if (os.access(executable, os.X_OK) and
not os.path.isdir(executable)):
return executable
else:
path = os.getenv("PATH", "")
for p in path.split(";" if osIsWindows else ":"):
fullpath = os.path.join(p, executable)
if (os.access(fullpath, os.X_OK) and
not os.path.isdir(fullpath)):
return fullpath
return None
class PopenWrapper(object):
def __init__(self, argv, env, stdio=False, hideWindow=False):
if isMicroPython:
pid = os.fork()
if not pid: # child
os.execvpe(argv[0], argv, env)
else: # parent
self.__pid = pid
elif isIronPython:
self.__pid = os.spawnve(os.P_NOWAIT,
argv[0], argv, dict(env))
else:
if osIsWindows and hideWindow:
startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags = subprocess.STARTF_USESHOWWINDOW
startupinfo.wShowWindow = subprocess.SW_HIDE
else:
startupinfo = None
self.__proc = subprocess.Popen(
argv,
env=dict(env),
shell=False,
stdin=subprocess.PIPE if stdio else None,
stdout=subprocess.PIPE if stdio else None,
stderr=subprocess.PIPE if stdio else None,
startupinfo=startupinfo
)
def terminate(self):
if isIronPython or isMicroPython:
try:
os.kill(self.__pid, signal.SIGTERM)
except ValueError:
pass
else:
self.__proc.terminate()
def wait(self):
if isIronPython or isMicroPython:
pass#TODO
else:
self.__proc.wait()
def poll(self):
if isIronPython or isMicroPython:
raise NotImplementedError()
return self.__proc.poll()
def communicate(self, input = None):
if isIronPython or isMicroPython:
raise NotImplementedError()
return self.__proc.communicate(input)
@property
def stdin(self):
if isIronPython or isMicroPython:
raise NotImplementedError()
return self.__proc.stdin
@property
def stdout(self):
if isIronPython or isMicroPython:
raise NotImplementedError()
return self.__proc.stdout
@property
def stderr(self):
if isIronPython or isMicroPython:
raise NotImplementedError()
return self.__proc.stderr
@property
def returncode(self):
if isIronPython or isMicroPython:
raise NotImplementedError()
return self.__proc.returncode
|
