Add global exception handler

friture/analyzer.py

@@ -25,6 +25,7 @@
 # specifically import from PyQt5.QtGui and QWidgets for startup time improvement :
 from PyQt5.QtWidgets import QMainWindow, QVBoxLayout, QApplication, QSplashScreen
 from PyQt5.QtGui import QPixmap
+import friture.exceptionhandler
 from friture.ui_friture import Ui_MainWindow
 from friture.about import About_Dialog  # About dialog
 from friture.settings import Settings_Dialog  # Setting dialog
@@ -43,7 +44,6 @@
 # (and text painting is costly)
 SLOW_TIMER_PERIOD_MS = 1000
 
-
 class Friture(QMainWindow, ):
 
     def __init__(self, logger):

friture/exceptionhandler.py

@@ -0,0 +1,69 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright (C) 2009 Timothée Lecomte
+
+# This file is part of Friture.
+#
+# Friture is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 3 as published by
+# the Free Software Foundation.
+#
+# Friture 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 Friture.  If not, see <http://www.gnu.org/licenses/>.
+
+import sys
+import os.path
+import time
+import io
+import traceback
+import friture
+from PyQt5 import QtCore
+from PyQt5 import QtWidgets
+
+def excepthook(exception_type, exception_value, traceback_object):
+    # call the standard exception handler to have prints on the console
+    sys.__excepthook__(exception_type, exception_value, traceback_object)
+
+    separator = '-' * 80
+    log_dir = QtCore.QStandardPaths.standardLocations(QtCore.QStandardPaths.AppDataLocation)[0]
+    logFile = os.path.join(log_dir, "friture.log")
+
+    notice = \
+        """An unhandled exception occurred. Please report the problem\n"""\
+        """on GitHub or via email to <%s>.\n"""\
+        """A log has been written to "%s".\n\nError information:\n""" % \
+        ("[email protected]", logFile)
+
+    versionInfo="Friture " + friture.__versionXXXX__
+
+    timeString = time.strftime("%Y-%m-%d, %H:%M:%S")
+
+    tbinfofile = io.StringIO()
+    traceback.print_tb(traceback_object, None, tbinfofile)
+    tbinfofile.seek(0)
+    tbinfo = tbinfofile.read()
+    errmsg = '%s: \n%s' % (str(exception_type), str(exception_value))
+    sections = [separator, timeString, separator, errmsg, separator, tbinfo, separator, versionInfo]
+    msg = '\n'.join(sections)
+
+    try:
+        os.makedirs(log_dir, exist_ok=True)
+        with open(logFile, "w") as f:
+            f.write(msg)
+    except IOError as e:
+        print(e)
+        pass
+
+    errorbox = QtWidgets.QMessageBox()
+    errorbox.setWindowTitle("Friture critical error")
+    errorbox.setText(str(notice)+str(msg))
+    errorbox.setIcon(QtWidgets.QMessageBox.Critical)
+    errorbox.exec_()
+
+sys.excepthook = excepthook