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706 lines
25 KiB
Python
706 lines
25 KiB
Python
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2015 Matt Martz <matt@sivel.net>
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# Copyright (C) 2015 Rackspace US, Inc.
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#
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# This program 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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# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import print_function
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import abc
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import argparse
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import ast
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import os
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import re
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import sys
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from distutils.version import StrictVersion
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from fnmatch import fnmatch
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from ansible import __version__ as ansible_version
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from ansible.executor.module_common import REPLACER_WINDOWS
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from ansible.plugins import module_loader
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from ansible.utils.module_docs import BLACKLIST_MODULES, get_docstring
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from module_args import get_argument_spec
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from schema import doc_schema, option_schema
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from utils import CaptureStd
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import yaml
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import yaml.reader
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BLACKLIST_DIRS = frozenset(('.git', 'test', '.github', '.idea'))
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INDENT_REGEX = re.compile(r'([\t]*)')
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TYPE_REGEX = re.compile(r'.*(if|or)(\s+.*|\s+)(?<!_)(?<!str\()type\(.*')
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BLACKLIST_IMPORTS = {
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'requests': {
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'new_only': True,
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'msg': ('requests import found, should use '
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'ansible.module_utils.urls instead')
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},
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'boto(?:\.|$)': {
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'new_only': True,
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'msg': ('boto import found, new modules should use boto3')
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},
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}
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class Validator(object):
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"""Validator instances are intended to be run on a single object. if you
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are scanning multiple objects for problems, you'll want to have a separate
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Validator for each one."""
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__metaclass__ = abc.ABCMeta
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def __init__(self):
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self.reset()
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def reset(self):
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"""Reset the test results"""
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self.errors = []
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self.warnings = []
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self.traces = []
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self.warning_traces = []
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@abc.abstractproperty
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def object_name(self):
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"""Name of the object we validated"""
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pass
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@abc.abstractproperty
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def object_path(self):
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"""Path of the object we validated"""
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pass
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@abc.abstractmethod
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def validate(self, reset=True):
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"""Run this method to generate the test results"""
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if reset:
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self.reset()
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def report(self, warnings=False):
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"""Print out the test results"""
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if self.errors or (warnings and self.warnings):
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print('=' * 76)
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print(self.object_path)
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print('=' * 76)
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ret = []
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traces = self.traces[:]
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if warnings and self.warnings:
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traces.extend(self.warning_traces)
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for trace in traces:
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print('TRACE:')
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print('\n '.join((' %s' % trace).splitlines()))
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for error in self.errors:
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print('ERROR: %s' % error)
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ret.append(1)
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if warnings:
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for warning in self.warnings:
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print('WARNING: %s' % warning)
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# ret.append(1) # Don't incrememt exit status for warnings
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if self.errors or (warnings and self.warnings):
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print()
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return len(ret)
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class ModuleValidator(Validator):
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BLACKLIST_PATTERNS = ('.git*', '*.pyc', '*.pyo', '.*', '*.md', '*.txt')
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BLACKLIST_FILES = frozenset(('.git', '.gitignore', '.travis.yml',
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'shippable.yml',
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'.gitattributes', '.gitmodules', 'COPYING',
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'__init__.py', 'VERSION', 'test-docs.sh'))
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BLACKLIST = BLACKLIST_FILES.union(BLACKLIST_MODULES)
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PS_DOC_BLACKLIST = frozenset((
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'async_status.ps1',
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'slurp.ps1',
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'setup.ps1'
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))
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def __init__(self, path, analyze_arg_spec=False):
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super(ModuleValidator, self).__init__()
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self.path = path
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self.basename = os.path.basename(self.path)
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self.name, _ = os.path.splitext(self.basename)
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self.analyze_arg_spec = analyze_arg_spec
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self._python_module_override = False
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with open(path) as f:
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self.text = f.read()
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self.length = len(self.text.splitlines())
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try:
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self.ast = ast.parse(self.text)
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except:
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self.ast = None
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@property
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def object_name(self):
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return self.basename
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@property
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def object_path(self):
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return self.path
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def _python_module(self):
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if self.path.endswith('.py') or self._python_module_override:
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return True
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return False
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def _powershell_module(self):
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if self.path.endswith('.ps1'):
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return True
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return False
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def _just_docs(self):
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try:
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for child in self.ast.body:
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if not isinstance(child, ast.Assign):
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return False
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return True
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except AttributeError:
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return False
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def _is_new_module(self):
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if self.name.startswith("_") and not os.path.islink(self.name):
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# This is a deprecated module, so look up the *old* name
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return not module_loader.has_plugin(self.name[1:])
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else:
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return not module_loader.has_plugin(self.name)
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def _check_interpreter(self, powershell=False):
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if powershell:
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if not self.text.startswith('#!powershell\n'):
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self.errors.append('Interpreter line is not "#!powershell"')
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return
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if not self.text.startswith('#!/usr/bin/python'):
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self.errors.append('Interpreter line is not "#!/usr/bin/python"')
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def _check_type_instead_of_isinstance(self, powershell=False):
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if powershell:
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return
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for line_no, line in enumerate(self.text.splitlines()):
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typekeyword = TYPE_REGEX.match(line)
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if typekeyword:
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self.errors.append('Type comparison using type() found on line %d. Use isinstance() instead' % (line_no + 1))
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def _check_for_sys_exit(self):
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if 'sys.exit(' in self.text:
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self.errors.append('sys.exit() call found. Should be '
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'exit_json/fail_json')
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def _check_for_gpl3_header(self):
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if ('GNU General Public License' not in self.text and
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'version 3' not in self.text):
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self.errors.append('GPLv3 license header not found')
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def _check_for_tabs(self):
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for line_no, line in enumerate(self.text.splitlines()):
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indent = INDENT_REGEX.search(line)
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if indent and '\t' in line:
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index = line.index('\t')
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self.errors.append('indentation contains tabs. line %d '
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'column %d' % (line_no + 1, index))
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def _find_blacklist_imports(self):
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for child in self.ast.body:
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names = []
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if isinstance(child, ast.Import):
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names.extend(child.names)
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elif isinstance(child, ast.TryExcept):
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bodies = child.body
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for handler in child.handlers:
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bodies.extend(handler.body)
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for grandchild in bodies:
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if isinstance(grandchild, ast.Import):
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names.extend(grandchild.names)
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for name in names:
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for blacklist_import, options in BLACKLIST_IMPORTS.items():
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if re.search(blacklist_import, name.name):
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msg = options['msg']
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new_only = options['new_only']
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if self._is_new_module() and new_only:
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self.errors.append(msg)
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elif not new_only:
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self.errors.append(msg)
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def _find_module_utils(self, main):
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linenos = []
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found_basic = False
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for child in self.ast.body:
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if isinstance(child, (ast.Import, ast.ImportFrom)):
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names = []
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try:
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names.append(child.module)
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if child.module.endswith('.basic'):
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found_basic = True
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except AttributeError:
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pass
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names.extend([n.name for n in child.names])
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if [n for n in names if n.startswith('ansible.module_utils')]:
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linenos.append(child.lineno)
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for name in child.names:
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if (isinstance(name, ast.alias) and
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name.name == 'basic'):
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found_basic = True
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if not linenos:
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self.errors.append('Did not find a module_utils import')
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elif not found_basic:
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self.warnings.append('Did not find "ansible.module_utils.basic" '
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'import')
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return linenos
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def _find_main_call(self):
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lineno = False
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if_bodies = []
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for child in self.ast.body:
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if isinstance(child, ast.If):
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try:
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if child.test.left.id == '__name__':
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if_bodies.extend(child.body)
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except AttributeError:
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pass
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bodies = self.ast.body
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bodies.extend(if_bodies)
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for child in bodies:
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if isinstance(child, ast.Expr):
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if isinstance(child.value, ast.Call):
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if (isinstance(child.value.func, ast.Name) and
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child.value.func.id == 'main'):
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lineno = child.lineno
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if lineno < self.length - 1:
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self.errors.append('Call to main() not the last '
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'line')
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if not lineno:
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self.errors.append('Did not find a call to main')
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return lineno or 0
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def _find_has_import(self):
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for child in self.ast.body:
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found_try_except_import = False
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found_has = False
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if isinstance(child, ast.TryExcept):
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bodies = child.body
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for handler in child.handlers:
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bodies.extend(handler.body)
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for grandchild in bodies:
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if isinstance(grandchild, ast.Import):
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found_try_except_import = True
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if isinstance(grandchild, ast.Assign):
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for target in grandchild.targets:
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if target.id.lower().startswith('has_'):
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found_has = True
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if found_try_except_import and not found_has:
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self.warnings.append('Found Try/Except block without HAS_ '
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'assginment')
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def _find_ps_replacers(self):
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if 'WANT_JSON' not in self.text:
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self.errors.append('WANT_JSON not found in module')
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if REPLACER_WINDOWS not in self.text:
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self.errors.append('"%s" not found in module' % REPLACER_WINDOWS)
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def _find_ps_docs_py_file(self):
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if self.object_name in self.PS_DOC_BLACKLIST:
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return
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py_path = self.path.replace('.ps1', '.py')
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if not os.path.isfile(py_path):
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self.errors.append('Missing python documentation file')
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def _get_docs(self):
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docs = {
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'DOCUMENTATION': {
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'value': None,
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'lineno': 0
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},
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'EXAMPLES': {
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'value': None,
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'lineno': 0
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},
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'RETURN': {
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'value': None,
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'lineno': 0
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}
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}
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for child in self.ast.body:
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if isinstance(child, ast.Assign):
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for grandchild in child.targets:
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if grandchild.id == 'DOCUMENTATION':
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docs['DOCUMENTATION']['value'] = child.value.s
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docs['DOCUMENTATION']['lineno'] = child.lineno
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elif grandchild.id == 'EXAMPLES':
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docs['EXAMPLES']['value'] = child.value.s[1:]
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docs['EXAMPLES']['lineno'] = child.lineno
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elif grandchild.id == 'RETURN':
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docs['RETURN']['value'] = child.value.s
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docs['RETURN']['lineno'] = child.lineno
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return docs
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def _validate_docs_schema(self, doc):
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errors = []
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try:
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doc_schema(doc)
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except Exception as e:
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errors.extend(e.errors)
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options = doc.get('options', {})
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for key, option in (options or {}).iteritems():
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try:
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option_schema(option)
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except Exception as e:
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for error in e.errors:
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error.path[:0] = ['options', key]
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errors.extend(e.errors)
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for error in errors:
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path = [str(p) for p in error.path]
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self.errors.append('DOCUMENTATION.%s: %s' %
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('.'.join(path), error.error_message))
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def _validate_docs(self):
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doc_info = self._get_docs()
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try:
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doc = yaml.safe_load(doc_info['DOCUMENTATION']['value'])
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except yaml.MarkedYAMLError as e:
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doc = None
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# This offsets the error line number to where the
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# DOCUMENTATION starts so we can just go to that line in the
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# module
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e.problem_mark.line += (
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doc_info['DOCUMENTATION']['lineno'] - 1
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)
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e.problem_mark.name = '%s.DOCUMENTATION' % self.name
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self.traces.append(e)
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self.errors.append('DOCUMENTATION is not valid YAML. Line %d '
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'column %d' %
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(e.problem_mark.line + 1,
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e.problem_mark.column + 1))
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except yaml.reader.ReaderError as e:
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self.traces.append(e)
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self.errors.append('DOCUMENTATION is not valid YAML. Character 0x%x at position %d.' %
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(e.character, e.position))
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except yaml.YAMLError as e:
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self.traces.append(e)
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self.errors.append('DOCUMENTATION is not valid YAML: %s: %s' % (type(e), e))
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except AttributeError:
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self.errors.append('No DOCUMENTATION provided')
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else:
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with CaptureStd():
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try:
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get_docstring(self.path, verbose=True)
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except AssertionError:
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fragment = doc['extends_documentation_fragment']
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self.errors.append('DOCUMENTATION fragment missing: %s' %
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fragment)
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except Exception as e:
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self.traces.append(e)
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self.errors.append('Unknown DOCUMENTATION error, see '
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'TRACE')
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self._validate_docs_schema(doc)
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self._check_version_added(doc)
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self._check_for_new_args(doc)
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if not bool(doc_info['EXAMPLES']['value']):
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self.errors.append('No EXAMPLES provided')
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if not bool(doc_info['RETURN']['value']):
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if self._is_new_module():
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self.errors.append('No RETURN documentation provided')
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else:
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self.warnings.append('No RETURN provided')
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else:
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try:
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yaml.safe_load(doc_info['RETURN']['value'])
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except yaml.MarkedYAMLError as e:
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e.problem_mark.line += (
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doc_info['RETURN']['lineno'] - 1
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)
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e.problem_mark.name = '%s.RETURN' % self.name
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self.errors.append('RETURN is not valid YAML. Line %d '
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'column %d' %
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(e.problem_mark.line + 1,
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e.problem_mark.column + 1))
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self.traces.append(e)
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except yaml.reader.ReaderError as e:
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self.traces.append(e)
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self.errors.append('RETURN is not valid YAML. Character 0x%x at position %d.' %
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(e.character, e.position))
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except yaml.YAMLError as e:
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self.traces.append(e)
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self.errors.append('RETURN is not valid YAML: %s: %s' % (type(e), e))
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def _check_version_added(self, doc):
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if not self._is_new_module():
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return
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try:
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version_added = StrictVersion(str(doc.get('version_added', '0.0')))
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except ValueError:
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version_added = doc.get('version_added', '0.0')
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self.errors.append('version_added is not a valid version '
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'number: %r' % version_added)
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return
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should_be = '.'.join(ansible_version.split('.')[:2])
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strict_ansible_version = StrictVersion(should_be)
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if (version_added < strict_ansible_version or
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strict_ansible_version < version_added):
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self.errors.append('version_added should be %s. Currently %s' %
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(should_be, version_added))
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def _validate_argument_spec(self):
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if not self.analyze_arg_spec:
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return
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spec = get_argument_spec(self.path)
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for arg, data in spec.items():
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if data.get('required') and data.get('default', object) != object:
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self.errors.append('"%s" is marked as required but specifies '
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'a default. Arguments with a default '
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'should not be marked as required' % arg)
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def _check_for_new_args(self, doc):
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if self._is_new_module():
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return
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with CaptureStd():
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try:
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existing = module_loader.find_plugin(self.name, mod_type='.py')
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existing_doc, _, _ = get_docstring(existing, verbose=True)
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existing_options = existing_doc.get('options', {})
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except AssertionError:
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fragment = doc['extends_documentation_fragment']
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self.warnings.append('Pre-existing DOCUMENTATION fragment '
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'missing: %s' % fragment)
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return
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except Exception as e:
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self.warning_traces.append(e)
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self.warnings.append('Unknown pre-existing DOCUMENTATION '
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'error, see TRACE. Submodule refs may '
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'need updated')
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return
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try:
|
|
mod_version_added = StrictVersion(
|
|
str(existing_doc.get('version_added', '0.0'))
|
|
)
|
|
except ValueError:
|
|
mod_version_added = StrictVersion('0.0')
|
|
|
|
options = doc.get('options', {})
|
|
|
|
should_be = '.'.join(ansible_version.split('.')[:2])
|
|
strict_ansible_version = StrictVersion(should_be)
|
|
|
|
for option, details in options.iteritems():
|
|
new = not bool(existing_options.get(option))
|
|
if not new:
|
|
continue
|
|
|
|
try:
|
|
version_added = StrictVersion(
|
|
str(details.get('version_added', '0.0'))
|
|
)
|
|
except ValueError:
|
|
version_added = details.get('version_added', '0.0')
|
|
self.errors.append('version_added for new option (%s) '
|
|
'is not a valid version number: %r' %
|
|
(option, version_added))
|
|
continue
|
|
except:
|
|
# If there is any other exception it should have been caught
|
|
# in schema validation, so we won't duplicate errors by
|
|
# listing it again
|
|
continue
|
|
|
|
if (strict_ansible_version != mod_version_added and
|
|
(version_added < strict_ansible_version or
|
|
strict_ansible_version < version_added)):
|
|
self.errors.append('version_added for new option (%s) should '
|
|
'be %s. Currently %s' %
|
|
(option, should_be, version_added))
|
|
|
|
def validate(self):
|
|
super(ModuleValidator, self).validate()
|
|
|
|
# Blacklists -- these files are not checked
|
|
if not frozenset((self.basename,
|
|
self.name)).isdisjoint(self.BLACKLIST):
|
|
return
|
|
for pat in self.BLACKLIST_PATTERNS:
|
|
if fnmatch(self.basename, pat):
|
|
return
|
|
|
|
# if self._powershell_module():
|
|
# self.warnings.append('Cannot check powershell modules at this '
|
|
# 'time. Skipping')
|
|
# return
|
|
if not self._python_module() and not self._powershell_module():
|
|
self.errors.append('Official Ansible modules must have a .py '
|
|
'extension for python modules or a .ps1 '
|
|
'for powershell modules')
|
|
self._python_module_override = True
|
|
|
|
if self._python_module() and self.ast is None:
|
|
self.errors.append('Python SyntaxError while parsing module')
|
|
try:
|
|
compile(self.text, self.path, 'exec')
|
|
except Exception as e:
|
|
self.traces.append(e)
|
|
return
|
|
|
|
if self._python_module():
|
|
self._validate_docs()
|
|
|
|
if self._python_module() and not self._just_docs():
|
|
self._validate_argument_spec()
|
|
self._check_for_sys_exit()
|
|
self._find_blacklist_imports()
|
|
main = self._find_main_call()
|
|
self._find_module_utils(main)
|
|
self._find_has_import()
|
|
self._check_for_tabs()
|
|
|
|
if self._powershell_module():
|
|
self._find_ps_replacers()
|
|
self._find_ps_docs_py_file()
|
|
|
|
self._check_for_gpl3_header()
|
|
if not self._just_docs():
|
|
self._check_interpreter(powershell=self._powershell_module())
|
|
self._check_type_instead_of_isinstance(powershell=self._powershell_module())
|
|
|
|
|
|
class PythonPackageValidator(Validator):
|
|
BLACKLIST_FILES = frozenset(('__pycache__',))
|
|
|
|
def __init__(self, path):
|
|
super(PythonPackageValidator, self).__init__()
|
|
|
|
self.path = path
|
|
self.basename = os.path.basename(path)
|
|
|
|
@property
|
|
def object_name(self):
|
|
return self.basename
|
|
|
|
@property
|
|
def object_path(self):
|
|
return self.path
|
|
|
|
def validate(self):
|
|
super(PythonPackageValidator, self).validate()
|
|
|
|
if self.basename in self.BLACKLIST_FILES:
|
|
return
|
|
|
|
init_file = os.path.join(self.path, '__init__.py')
|
|
if not os.path.exists(init_file):
|
|
self.errors.append('Ansible module subdirectories must contain an '
|
|
'__init__.py')
|
|
|
|
|
|
def re_compile(value):
|
|
"""
|
|
Argparse expects things to raise TypeError, re.compile raises an re.error
|
|
exception
|
|
|
|
This function is a shorthand to convert the re.error exception to a
|
|
TypeError
|
|
"""
|
|
|
|
try:
|
|
return re.compile(value)
|
|
except re.error as e:
|
|
raise TypeError(e)
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument('modules', nargs='+',
|
|
help='Path to module or module directory')
|
|
parser.add_argument('-w', '--warnings', help='Show warnings',
|
|
action='store_true')
|
|
parser.add_argument('--exclude', help='RegEx exclusion pattern',
|
|
type=re_compile)
|
|
parser.add_argument('--arg-spec', help='Analyze module argument spec',
|
|
action='store_true', default=False)
|
|
args = parser.parse_args()
|
|
|
|
args.modules[:] = [m.rstrip('/') for m in args.modules]
|
|
|
|
exit = []
|
|
|
|
for module in args.modules:
|
|
if os.path.isfile(module):
|
|
path = module
|
|
if args.exclude and args.exclude.search(path):
|
|
sys.exit(0)
|
|
mv = ModuleValidator(path, analyze_arg_spec=args.arg_spec)
|
|
mv.validate()
|
|
exit.append(mv.report(args.warnings))
|
|
|
|
for root, dirs, files in os.walk(module):
|
|
basedir = root[len(module)+1:].split('/', 1)[0]
|
|
if basedir in BLACKLIST_DIRS:
|
|
continue
|
|
for dirname in dirs:
|
|
if root == module and dirname in BLACKLIST_DIRS:
|
|
continue
|
|
path = os.path.join(root, dirname)
|
|
if args.exclude and args.exclude.search(path):
|
|
continue
|
|
pv = PythonPackageValidator(path)
|
|
pv.validate()
|
|
exit.append(pv.report(args.warnings))
|
|
|
|
for filename in files:
|
|
path = os.path.join(root, filename)
|
|
if args.exclude and args.exclude.search(path):
|
|
continue
|
|
mv = ModuleValidator(path, analyze_arg_spec=args.arg_spec)
|
|
mv.validate()
|
|
exit.append(mv.report(args.warnings))
|
|
|
|
sys.exit(sum(exit))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
try:
|
|
main()
|
|
except KeyboardInterrupt:
|
|
pass
|