83 lines
2.8 KiB
Python
83 lines
2.8 KiB
Python
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
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# Copyright 2014-2016 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
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#
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# This file is part of qutebrowser.
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#
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# qutebrowser is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# qutebrowser is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with qutebrowser. If not, see <http://www.gnu.org/licenses/>.
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"""Custom astroid checker for config calls."""
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import sys
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import os
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import os.path
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import astroid
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from pylint import interfaces, checkers
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from pylint.checkers import utils
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sys.path.insert(
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0, os.path.join(os.path.dirname(__file__), os.pardir, os.pardir,
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os.pardir))
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from qutebrowser.config import configdata
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class ConfigChecker(checkers.BaseChecker):
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"""Custom astroid checker for config calls."""
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__implements__ = interfaces.IAstroidChecker
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name = 'config'
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msgs = {
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'E0000': ('"%s -> %s" is no valid config option.', # flake8: disable=S001
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'bad-config-call',
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None),
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}
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priority = -1
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@utils.check_messages('bad-config-call')
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def visit_call(self, node):
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"""Visit a Call node."""
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if hasattr(node, 'func'):
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infer = utils.safe_infer(node.func)
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if infer and infer.root().name == 'qutebrowser.config.config':
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if getattr(node.func, 'attrname', None) in ['get', 'set']:
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self._check_config(node)
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def _check_config(self, node):
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"""Check that the arguments to config.get(...) are valid."""
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try:
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sect_arg = utils.get_argument_from_call(node, position=0,
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keyword='sectname')
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opt_arg = utils.get_argument_from_call(node, position=1,
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keyword='optname')
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except utils.NoSuchArgumentError:
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return
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sect_arg = utils.safe_infer(sect_arg)
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opt_arg = utils.safe_infer(opt_arg)
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if not (isinstance(sect_arg, astroid.Const) and
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isinstance(opt_arg, astroid.Const)):
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return
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try:
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configdata.DATA[sect_arg.value][opt_arg.value]
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except KeyError:
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self.add_message('bad-config-call', node=node,
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args=(sect_arg.value, opt_arg.value))
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def register(linter):
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"""Register this checker."""
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linter.register_checker(ConfigChecker(linter))
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