mirror of
https://github.com/PyCQA/flake8.git
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130 lines
4.6 KiB
Python
130 lines
4.6 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import absolute_import
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try:
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# The 'demandimport' breaks pyflakes and flake8.plugins.pyflakes
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from mercurial import demandimport
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except ImportError:
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pass
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else:
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demandimport.disable()
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import os
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import pyflakes
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import pyflakes.checker
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from flake8 import utils
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def patch_pyflakes():
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"""Add error codes to Pyflakes messages."""
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codes = dict([line.split()[::-1] for line in (
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'F401 UnusedImport',
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'F402 ImportShadowedByLoopVar',
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'F403 ImportStarUsed',
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'F404 LateFutureImport',
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'F810 Redefined', # XXX Obsolete?
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'F811 RedefinedWhileUnused',
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'F812 RedefinedInListComp',
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'F821 UndefinedName',
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'F822 UndefinedExport',
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'F823 UndefinedLocal',
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'F831 DuplicateArgument',
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'F841 UnusedVariable',
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)])
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for name, obj in vars(pyflakes.messages).items():
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if name[0].isupper() and obj.message:
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obj.flake8_msg = '%s %s' % (codes.get(name, 'F999'), obj.message)
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patch_pyflakes()
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class FlakesChecker(pyflakes.checker.Checker):
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"""Subclass the Pyflakes checker to conform with the flake8 API."""
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name = 'pyflakes'
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version = pyflakes.__version__
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def __init__(self, tree, filename):
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filename = utils.normalize_paths(filename)[0]
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withDoctest = self.withDoctest
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included_by = [include for include in self.include_in_doctest
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if include != '' and filename.startswith(include)]
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if included_by:
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withDoctest = True
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for exclude in self.exclude_from_doctest:
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if exclude != '' and filename.startswith(exclude):
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withDoctest = False
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overlaped_by = [include for include in included_by
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if include.startswith(exclude)]
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if overlaped_by:
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withDoctest = True
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super(FlakesChecker, self).__init__(tree, filename,
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withDoctest=withDoctest)
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@classmethod
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def add_options(cls, parser):
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parser.add_option(
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'--builtins', parse_from_config=True, comma_separated_list=True,
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help="define more built-ins, comma separated",
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)
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parser.add_option(
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'--doctests', default=False, action='store_true',
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parse_from_config=True,
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help="check syntax of the doctests",
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)
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parser.add_option(
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'--include-in-doctest', default='',
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dest='include_in_doctest', parse_from_config=True,
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comma_separated_list=True, normalize_paths=True,
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help='Run doctests only on these files',
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type='string',
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)
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parser.add_option(
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'--exclude-from-doctest', default='',
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dest='exclude_from_doctest', parse_from_config=True,
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comma_separated_list=True, normalize_paths=True,
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help='Skip these files when running doctests',
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type='string',
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)
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@classmethod
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def parse_options(cls, options):
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if options.builtins:
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cls.builtIns = cls.builtIns.union(options.builtins.split(','))
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cls.withDoctest = options.doctests
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included_files = []
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for included_file in options.include_in_doctest:
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if included_file == '':
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continue
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if not included_file.startswith((os.sep, './', '~/')):
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included_files.append('./' + included_file)
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else:
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included_files.append(included_file)
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cls.include_in_doctest = utils.normalize_paths(included_files)
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excluded_files = []
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for excluded_file in options.exclude_from_doctest.split(','):
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if excluded_file == '':
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continue
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if not excluded_file.startswith((os.sep, './', '~/')):
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excluded_files.append('./' + excluded_file)
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else:
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excluded_files.append(excluded_file)
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cls.exclude_from_doctest = utils.normalize_paths(excluded_files)
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inc_exc = set(cls.include_in_doctest).intersection(
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cls.exclude_from_doctest
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)
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if inc_exc:
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raise ValueError('"%s" was specified in both the '
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'include-in-doctest and exclude-from-doctest '
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'options. You are not allowed to specify it in '
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'both for doctesting.' % inc_exc)
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def run(self):
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for m in self.messages:
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col = getattr(m, 'col', 0)
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yield m.lineno, col, (m.flake8_msg % m.message_args), m.__class__
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