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Diffstat (limited to 'src')
| -rw-r--r-- | src/mailman/testing/flake8.py | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/src/mailman/testing/flake8.py b/src/mailman/testing/flake8.py deleted file mode 100644 index 68bd37761..000000000 --- a/src/mailman/testing/flake8.py +++ /dev/null @@ -1,141 +0,0 @@ -# Copyright (C) 2016 by the Free Software Foundation, Inc. -# -# This file is part of GNU Mailman. -# -# GNU Mailman 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. -# -# GNU Mailman 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 -# GNU Mailman. If not, see <http://www.gnu.org/licenses/>. - -"""Flake8 extensions for Mailman coding style.""" - - -from ast import NodeVisitor -from collections import namedtuple -from enum import Enum - - -class ImportType(Enum): - non_from = 0 - from_import = 1 - - -ImportRecord = namedtuple('ImportRecord', 'itype lineno colno, module, names') - - -NONFROM_FOLLOWS_FROM = 'B401 Non-from import follows from-import' -NONFROM_MULTIPLE_NAMES = 'B402 Multiple names on non-from import' -NONFROM_SHORTER_FOLLOWS = 'B403 Shorter non-from import follows longer' -NONFROM_ALPHA_UNSORTED = ( - 'B404 Same-length non-from imports not sorted alphabetically') -NONFROM_EXTRA_BLANK_LINE = ( - 'B405 Unexpected blank line since last non-from import') -NONFROM_DOTTED_UNSORTED = ( - 'B406 Dotted non-from import not sorted alphabetically') - -FROMIMPORT_MISSING_BLANK_LINE = ( - 'B411 Expected one blank line since last non-from import') -FROMIMPORT_ALPHA_UNSORTED = 'B412 from-import not sorted alphabetically' -FROMIMPORT_MULTIPLE = 'B413 Multiple from-imports of same module' -FROMIMPORT_NAMES_UNSORTED = ( - 'B414 from-imported names are not sorted alphabetically') - - -class ImportVisitor(NodeVisitor): - def __init__(self): - self.imports = [] - - def visit_Import(self, node): - if node.col_offset != 0: - # Ignore nested imports. - return - names = [alias.name for alias in node.names] - self.imports.append( - ImportRecord(ImportType.non_from, node.lineno, node.col_offset, - None, names)) - - def visit_ImportFrom(self, node): - if node.col_offset != 0: - # Ignore nested imports. - return - names = [alias.name for alias in node.names] - self.imports.append( - ImportRecord(ImportType.from_import, node.lineno, node.col_offset, - node.module, names)) - - -class ImportOrder: - name = 'flufl-import-order' - version = '0.1' - - def __init__(self, tree, filename): - self.tree = tree - self.filename = filename - - def _error(self, record, error): - code, space, text = error.partition(' ') - return (record.lineno, record.colno, - '{} {}'.format(code, text), ImportOrder) - - def run(self): - visitor = ImportVisitor() - visitor.visit(self.tree) - last_import = None - for record in visitor.imports: - if last_import is None: - last_import = record - continue - if record.itype is ImportType.non_from: - if len(record.names) != 1: - yield self._error(record, NONFROM_MULTIPLE_NAMES) - if last_import.itype is ImportType.from_import: - yield self._error(record, NONFROM_FOLLOWS_FROM) - # Shorter imports should always precede longer import *except* - # when they are dotted imports and everything but the last - # path component are the same. In that case, they should be - # sorted alphabetically. - last_name = last_import.names[0] - this_name = record.names[0] - if '.' in last_name and '.' in this_name: - last_parts = last_name.split('.') - this_parts = this_name.split('.') - if (last_parts[:-1] == this_parts[:-1] and - last_parts[-1] > this_parts[-1]): - yield self._error(record, NONFROM_DOTTED_UNSORTED) - elif len(last_name) > len(this_name): - yield self._error(record, NONFROM_SHORTER_FOLLOWS) - # It's also possible that the imports are the same length, in - # which case they must be sorted alphabetically. - if (len(last_import.names[0]) == len(record.names[0]) and - last_import.names[0] > record.names[0]): - yield self._error(record, NONFROM_ALPHA_UNSORTED) - if last_import.lineno + 1 != record.lineno: - yield self._error(record, NONFROM_DOTTED_UNSORTED) - else: - assert record.itype is ImportType.from_import - if (last_import.itype is ImportType.non_from and - record.lineno != last_import.lineno + 2): - yield self._error(record, FROMIMPORT_MISSING_BLANK_LINE) - if last_import.itype is ImportType.non_from: - last_import = record - continue - if last_import.module > record.module: - yield self._error(record, FROMIMPORT_ALPHA_UNSORTED) - # All imports from the same module should show up in the same - # multiline import. - if last_import.module == record.module: - yield self._error(record, FROMIMPORT_MULTIPLE) - # Check the sort order of the imported names. - if sorted(record.names) != record.names: - yield self._error(record, FROMIMPORT_NAMES_UNSORTED) - # How to check for no blank lines between from imports? - # Update the last import. - last_import = record |