Coverage for qutebrowser/utils/error.py : 100%

# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et: 

# Copyright 2015-2018 Florian Bruhin (The Compiler) <mail@qutebrowser.org> 

# 

# This file is part of qutebrowser. 

# 

# qutebrowser 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 3 of the License, or 

# (at your option) any later version. 

# 

# qutebrowser 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 qutebrowser. If not, see <http://www.gnu.org/licenses/>. 

"""Tools related to error printing/displaying.""" 

from PyQt5.QtWidgets import QMessageBox 

from qutebrowser.utils import log, utils 

def _get_name(exc): 

"""Get a suitable exception name as a string.""" 

prefixes = ['qutebrowser', 'builtins'] 

name = utils.qualname(exc.__class__) 

for prefix in prefixes: 

if name.startswith(prefix): 

name = name[len(prefix) + 1:] 

break 

return name 

def handle_fatal_exc(exc, args, title, *, pre_text='', post_text=''): 

"""Handle a fatal "expected" exception by displaying an error box. 

If --no-err-windows is given as argument, the text is logged to the error 

logger instead. 

Args: 

exc: The Exception object being handled. 

args: The argparser namespace. 

title: The title to be used for the error message. 

pre_text: The text to be displayed before the exception text. 

post_text: The text to be displayed after the exception text. 

""" 

if args.no_err_windows: 

lines = [ 

"Handling fatal {} with --no-err-windows!".format(_get_name(exc)), 

"", 

"title: {}".format(title), 

"pre_text: {}".format(pre_text), 

"post_text: {}".format(post_text), 

"exception text: {}".format(str(exc) or 'none'), 

] 

log.misc.exception('\n'.join(lines)) 

else: 

if pre_text: 

msg_text = '{}: {}'.format(pre_text, exc) 

else: 

msg_text = str(exc) 

if post_text: 

msg_text += '\n\n{}'.format(post_text) 

msgbox = QMessageBox(QMessageBox.Critical, title, msg_text) 

msgbox.exec_()