beremiz

fix problem when Beremiz is running without matiec installed

2017-08-25, Andrey Skvortsov
492e2cd6157e
fix problem when Beremiz is running without matiec installed

set matiec settings only once on first use of ProjectController class and give
user-friendly message on compilation about missing matiec
installation.


Traceback (most recent call last):
File "Beremiz.py", line 197, in
beremiz.Start()
File "Beremiz.py", line 192, in Start
self.CreateApplication()
File "Beremiz.py", line 130, in CreateApplication
self.BackgroundInitialization()
File "Beremiz.py", line 137, in BackgroundInitialization
self.ImportModules()
File "Beremiz.py", line 176, in ImportModules
import BeremizIDE
File
"BeremizIDE.py", line 76, in
from ProjectController import ProjectController, GetAddMenuItems,
MATIEC_ERROR_MODEL, ITEM_CONFNODE
File
"ProjectController.py", line 177, in
iec2c_cfg = Iec2CSettings()
File
"ProjectController.py", line 101, in __init__
self.ieclib_c_path = self.findLibCPath()
File
"ProjectController.py", line 135, in findLibCPath
os.path.join(self.ieclib_path, "C"),
File "/usr/lib/python2.7/posixpath.py", line 70, in join
elif path == '' or path.endswith('/'):
AttributeError: 'NoneType' object has no attribute 'endswith'
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
# See COPYING file for copyrights details.
#
# 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.
import os
import sys
import time
import wx
import subprocess
import ctypes
from threading import Timer, Lock, Thread, Semaphore
if os.name == 'posix':
from signal import SIGTERM, SIGKILL
class outputThread(Thread):
"""
Thread is used to print the output of a command to the stdout
"""
def __init__(self, Proc, fd, callback=None, endcallback=None):
Thread.__init__(self)
self.killed = False
self.finished = False
self.retval = None
self.Proc = Proc
self.callback = callback
self.endcallback = endcallback
self.fd = fd
def run(self):
outchunk = None
self.retval = None
while self.retval is None and not self.killed:
if self.endcallback:
self.retval = self.Proc.poll()
else:
self.retval = self.Proc.returncode
outchunk = self.fd.readline()
if self.callback:
self.callback(outchunk)
while outchunk != '' and not self.killed:
outchunk = self.fd.readline()
if self.callback:
self.callback(outchunk)
if self.endcallback:
try:
err = self.Proc.wait()
except Exception:
err = self.retval
self.finished = True
self.endcallback(self.Proc.pid, err)
class ProcessLogger:
def __init__(self, logger, Command, finish_callback=None,
no_stdout=False, no_stderr=False, no_gui=True,
timeout=None, outlimit=None, errlimit=None,
endlog=None, keyword=None, kill_it=False, cwd=None,
encoding=None):
self.logger = logger
if not isinstance(Command, list):
self.Command_str = Command
self.Command = []
for i, word in enumerate(Command.replace("'", '"').split('"')):
if i % 2 == 0:
word = word.strip()
if len(word) > 0:
self.Command.extend(word.split())
else:
self.Command.append(word)
else:
self.Command = Command
self.Command_str = subprocess.list2cmdline(self.Command)
fsencoding = sys.getfilesystemencoding()
if encoding is None:
encoding = fsencoding
self.Command = [self.Command[0].encode(fsencoding)]+map(
lambda x: x.encode(encoding), self.Command[1:])
self.finish_callback = finish_callback
self.no_stdout = no_stdout
self.no_stderr = no_stderr
self.startupinfo = None
self.errlen = 0
self.outlen = 0
self.errlimit = errlimit
self.outlimit = outlimit
self.exitcode = None
self.outdata = []
self.errdata = []
self.keyword = keyword
self.kill_it = kill_it
self.startsem = Semaphore(0)
self.finishsem = Semaphore(0)
self.endlock = Lock()
popenargs = {
"cwd": os.getcwd() if cwd is None else cwd,
"stdin": subprocess.PIPE,
"stdout": subprocess.PIPE,
"stderr": subprocess.PIPE
}
if no_gui and wx.Platform == '__WXMSW__':
self.startupinfo = subprocess.STARTUPINFO()
self.startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
popenargs["startupinfo"] = self.startupinfo
elif wx.Platform == '__WXGTK__':
popenargs["shell"] = False
if timeout:
self.timeout = Timer(timeout, self.endlog)
self.timeout.start()
else:
self.timeout = None
self.Proc = subprocess.Popen(self.Command, **popenargs)
self.outt = outputThread(
self.Proc,
self.Proc.stdout,
self.output,
self.finish)
self.outt.start()
self.errt = outputThread(
self.Proc,
self.Proc.stderr,
self.errors)
self.errt.start()
self.startsem.release()
def output(self, v):
self.outdata.append(v)
self.outlen += 1
if not self.no_stdout:
self.logger.write(v)
if (self.keyword and v.find(self.keyword) != -1) or (self.outlimit and self.outlen > self.outlimit):
self.endlog()
def errors(self, v):
self.errdata.append(v)
self.errlen += 1
if not self.no_stderr:
self.logger.write_warning(v)
if self.errlimit and self.errlen > self.errlimit:
self.endlog()
def log_the_end(self, ecode, pid):
self.logger.write(self.Command_str + "\n")
self.logger.write_warning(_("exited with status {a1} (pid {a2})\n").format(a1=str(ecode), a2=str(pid)))
def finish(self, pid, ecode):
# avoid running function before start is finished
self.startsem.acquire()
if self.timeout:
self.timeout.cancel()
self.exitcode = ecode
if self.exitcode != 0:
self.log_the_end(ecode, pid)
if self.finish_callback is not None:
self.finish_callback(self, ecode, pid)
self.errt.join()
self.finishsem.release()
def kill(self, gently=True):
# avoid running kill before start is finished
self.startsem.acquire()
self.startsem.release()
self.outt.killed = True
self.errt.killed = True
if wx.Platform == '__WXMSW__':
PROCESS_TERMINATE = 1
handle = ctypes.windll.kernel32.OpenProcess(PROCESS_TERMINATE, False, self.Proc.pid)
ctypes.windll.kernel32.TerminateProcess(handle, -1)
ctypes.windll.kernel32.CloseHandle(handle)
else:
if gently:
sig = SIGTERM
else:
sig = SIGKILL
try:
os.kill(self.Proc.pid, sig)
except Exception:
pass
self.outt.join()
self.errt.join()
def endlog(self):
if self.endlock.acquire(False):
if not self.outt.finished and self.kill_it:
self.kill()
self.finishsem.release()
def spin(self):
self.finishsem.acquire()
return [self.exitcode, "".join(self.outdata), "".join(self.errdata)]