freeipa/make-lint
Petr Viktorin 61c4ecccc1 Run pylint on tests
Drop support for pylint < 1.0

Enable ignoring unknown attributes on modules (both nose and pytest
use advanced techniques, support for which only made it to pylint
recently)

Fix some bugs revealed by pylint

Do minor refactoring or add pylint:disable directives where the
linter complains.

Reviewed-By: Tomas Babej <tbabej@redhat.com>
2015-01-14 11:40:28 +01:00

269 lines
9.3 KiB
Python
Executable File

#!/usr/bin/python2
#
# Authors:
# Jakub Hrozek <jhrozek@redhat.com>
# Jan Cholasta <jcholast@redhat.com>
#
# Copyright (C) 2011 Red Hat
# see file 'COPYING' for use and warranty information
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
import os
import sys
from optparse import OptionParser
from fnmatch import fnmatch, fnmatchcase
try:
from pylint import checkers
from pylint.lint import PyLinter
from pylint.checkers.typecheck import TypeChecker
from astroid import Class, Instance, Module, InferenceError
from pylint.reporters.text import TextReporter
except ImportError:
print >> sys.stderr, "To use {0}, please install pylint.".format(sys.argv[0])
sys.exit(32)
# File names to ignore when searching for python source files
IGNORE_FILES = ('.*', '*~', '*.in', '*.pyc', '*.pyo')
IGNORE_PATHS = (
'build', 'rpmbuild', 'dist', 'install/po/test_i18n.py', 'lite-server.py')
class IPATypeChecker(TypeChecker):
NAMESPACE_ATTRS = ['Command', 'Object', 'Method', 'Backend', 'Updater',
'Advice']
LOGGING_ATTRS = ['log', 'debug', 'info', 'warning', 'error', 'exception',
'critical']
# 'class or module': ['generated', 'properties']
ignore = {
# Python standard library & 3rd party classes
'krbV.Principal': ['name'],
'socket._socketobject': ['sendall'],
# should be 'subprocess.Popen'
'.Popen': ['stdin', 'stdout', 'stderr', 'pid', 'returncode', 'poll',
'wait', 'communicate'],
'urlparse.ResultMixin': ['scheme', 'netloc', 'path', 'query',
'fragment', 'username', 'password', 'hostname', 'port'],
'urlparse.ParseResult': ['params'],
'pytest': ['fixture', 'raises', 'skip', 'yield_fixture', 'mark'],
'nose.tools': ['assert_equal', 'assert_raises'],
'datetime.tzinfo': ['houroffset', 'minoffset', 'utcoffset', 'dst'],
# IPA classes
'ipalib.base.NameSpace': ['add', 'mod', 'del', 'show', 'find'],
'ipalib.cli.Collector': ['__options'],
'ipalib.config.Env': ['*'],
'ipalib.krb_utils.KRB5_CCache': LOGGING_ATTRS,
'ipalib.parameters.Param': ['cli_name', 'cli_short_name', 'label',
'default', 'doc', 'required', 'multivalue', 'primary_key',
'normalizer', 'default_from', 'autofill', 'query', 'attribute',
'include', 'exclude', 'flags', 'hint', 'alwaysask', 'sortorder',
'csv', 'option_group'],
'ipalib.parameters.Bool': ['truths', 'falsehoods'],
'ipalib.parameters.Data': ['minlength', 'maxlength', 'length',
'pattern', 'pattern_errmsg'],
'ipalib.parameters.Str': ['noextrawhitespace'],
'ipalib.parameters.Password': ['confirm'],
'ipalib.parameters.File': ['stdin_if_missing'],
'ipalib.plugins.dns.DNSRecord': ['validatedns', 'normalizedns'],
'ipalib.parameters.Enum': ['values'],
'ipalib.parameters.Number': ['minvalue', 'maxvalue'],
'ipalib.parameters.Decimal': ['precision', 'exponential',
'numberclass'],
'ipalib.parameters.DNSNameParam': ['only_absolute', 'only_relative'],
'ipalib.plugable.API': NAMESPACE_ATTRS + LOGGING_ATTRS,
'ipalib.plugable.Plugin': ['api', 'env'] + NAMESPACE_ATTRS +
LOGGING_ATTRS,
'ipalib.session.AuthManager': LOGGING_ATTRS,
'ipalib.session.SessionAuthManager': LOGGING_ATTRS,
'ipalib.session.SessionManager': LOGGING_ATTRS,
'ipaserver.install.ldapupdate.LDAPUpdate': LOGGING_ATTRS,
'ipaserver.rpcserver.KerberosSession': ['api'] + LOGGING_ATTRS,
'ipatests.test_integration.base.IntegrationTest': [
'domain', 'master', 'replicas', 'clients', 'ad_domains']
}
def _related_classes(self, klass):
yield klass
for base in klass.ancestors():
yield base
def _class_full_name(self, klass):
return klass.root().name + '.' + klass.name
def _find_ignored_attrs(self, owner):
attrs = []
for klass in self._related_classes(owner):
name = self._class_full_name(klass)
if name in self.ignore:
attrs += self.ignore[name]
return attrs
def visit_getattr(self, node):
try:
inferred = list(node.expr.infer())
except InferenceError:
inferred = []
for owner in inferred:
if isinstance(owner, Module):
if node.attrname in self.ignore.get(owner.name, ()):
return
elif isinstance(owner, Class) or type(owner) is Instance:
ignored = self._find_ignored_attrs(owner)
for pattern in ignored:
if fnmatchcase(node.attrname, pattern):
return
super(IPATypeChecker, self).visit_getattr(node)
class IPALinter(PyLinter):
ignore = (TypeChecker,)
def __init__(self):
super(IPALinter, self).__init__()
self.missing = set()
def register_checker(self, checker):
if type(checker) in self.ignore:
return
super(IPALinter, self).register_checker(checker)
def add_message(self, msg_id, line=None, node=None, args=None):
if line is None and node is not None:
line = node.fromlineno
# Record missing packages
if msg_id == 'F0401' and self.is_message_enabled(msg_id, line):
self.missing.add(args)
super(IPALinter, self).add_message(msg_id, line, node, args)
def find_files(path, basepath):
entries = os.listdir(path)
# If this directory is a python package, look no further
if '__init__.py' in entries:
return [path]
result = []
for filename in entries:
filepath = os.path.join(path, filename)
for pattern in IGNORE_FILES:
if fnmatch(filename, pattern):
filename = None
break
if filename is None:
continue
for pattern in IGNORE_PATHS:
patpath = os.path.join(basepath, pattern).replace(os.sep, '/')
if filepath == patpath:
filename = None
break
if filename is None:
continue
if os.path.islink(filepath):
continue
# Recurse into subdirectories
if os.path.isdir(filepath):
result += find_files(filepath, basepath)
continue
# Add all *.py files
if filename.endswith('.py'):
result.append(filepath)
continue
# Add any other files beginning with a shebang and having
# the word "python" on the first line
file = open(filepath, 'r')
line = file.readline(128)
file.close()
if line[:2] == '#!' and line.find('python') >= 0:
result.append(filepath)
return result
def main():
optparser = OptionParser()
optparser.add_option('--no-fail', help='report success even if errors were found',
dest='fail', default=True, action='store_false')
optparser.add_option('--enable-noerror', help='enable warnings and other non-error messages',
dest='errors_only', default=True, action='store_false')
options, args = optparser.parse_args()
cwd = os.getcwd()
if len(args) == 0:
files = find_files(cwd, cwd)
else:
files = args
for filename in files:
dirname = os.path.dirname(filename)
if dirname not in sys.path:
sys.path.insert(0, dirname)
linter = IPALinter()
checkers.initialize(linter)
linter.register_checker(IPATypeChecker(linter))
if options.errors_only:
linter.disable_noerror_messages()
linter.enable('F')
linter.set_reporter(TextReporter())
linter.set_option('msg-template',
'{path}:{line}: [{msg_id}({symbol}), {obj}] {msg})')
linter.set_option('reports', False)
linter.set_option('persistent', False)
linter.check(files)
if linter.msg_status != 0:
print >> sys.stderr, """
===============================================================================
Errors were found during the static code check.
"""
if len(linter.missing) > 0:
print >> sys.stderr, "There are some missing imports:"
for mod in sorted(linter.missing):
print >> sys.stderr, " " + mod
print >> sys.stderr, """
Please make sure all of the required and optional (python-krbV, python-rhsm)
python packages are installed.
"""
print >> sys.stderr, """\
If you are certain that any of the reported errors are false positives, please
mark them in the source code according to the pylint documentation.
===============================================================================
"""
if options.fail:
return linter.msg_status
else:
return 0
if __name__ == "__main__":
sys.exit(main())