60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
|
|
|
|
# Copyright 2014 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/>.
|
|
|
|
"""Make sure open() has an encoding set."""
|
|
|
|
from pylint.interfaces import IAstroidChecker
|
|
from pylint.checkers import BaseChecker
|
|
from pylint.checkers import utils
|
|
|
|
|
|
class OpenEncodingChecker(BaseChecker):
|
|
|
|
"""Checker to check open() has an encoding set."""
|
|
|
|
__implements__ = IAstroidChecker
|
|
name = 'open-encoding'
|
|
|
|
msgs = {
|
|
'W9400': ('open() called without encoding', 'open-without-encoding',
|
|
None),
|
|
}
|
|
|
|
@utils.check_messages('open-without-encoding')
|
|
def visit_callfunc(self, node):
|
|
"""Visit a CallFunc node."""
|
|
if hasattr(node, 'func'):
|
|
infer = utils.safe_infer(node.func)
|
|
if infer and infer.root().name == '_io':
|
|
if getattr(node.func, 'name', None) in ('open', 'file'):
|
|
self._check_open_encoding(node)
|
|
|
|
def _check_open_encoding(self, node):
|
|
"""Check that an open() call always has an encoding set."""
|
|
try:
|
|
_encoding = utils.get_argument_from_call(node, position=3,
|
|
keyword='encoding')
|
|
except utils.NoSuchArgumentError:
|
|
self.add_message('open-without-encoding', node=node)
|
|
|
|
|
|
def register(linter):
|
|
"""Register this checker."""
|
|
linter.register_checker(OpenEncodingChecker(linter))
|