275 lines
12 KiB
Python
275 lines
12 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import argparse
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import re
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import six
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import sys
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from heat.common.i18n import _
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from heat.engine import constraints
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from heat.engine import resources
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from heat.engine import support
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class HeatCustomGuidelines(object):
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_RULES = ['resource_descriptions', 'trailing_spaces']
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def __init__(self, exclude):
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self.error_count = 0
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self.resources_classes = []
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global_env = resources.global_env()
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for resource_type in global_env.get_types():
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cls = global_env.get_class(resource_type)
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# Skip resources, which defined as template resource in environment
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if cls.__module__ == 'heat.engine.resources.template_resource':
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continue
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if (lambda module: True
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if [path for path in exclude if path in module]
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else False)(cls.__module__.replace('.', '/')):
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continue
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self.resources_classes.append(cls)
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def run_check(self):
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print(_('Heat custom guidelines check started.'))
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for rule in self._RULES:
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getattr(self, 'check_%s' % rule)()
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if self.error_count > 0:
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print(_('Heat custom guidelines check failed - '
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'found %s errors.') % self.error_count)
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sys.exit(1)
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else:
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print(_('Heat custom guidelines check succeeded.'))
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def check_resource_descriptions(self):
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for cls in self.resources_classes:
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# check resource's description
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self._check_resource_description(cls)
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# check properties' descriptions
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self._check_resource_schemas(cls, cls.properties_schema,
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'property')
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# check attributes' descriptions
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self._check_resource_schemas(cls, cls.attributes_schema,
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'attribute')
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# check methods descriptions
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self._check_resource_methods(cls)
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def _check_resource_description(self, resource):
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description = resource.__doc__
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if resource.support_status.status not in (support.SUPPORTED,
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support.UNSUPPORTED):
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return
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kwargs = {'path': resource.__module__, 'details': resource.__name__}
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if not description:
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kwargs.update({'message': _("Resource description missing, "
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"should add resource description "
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"about resource's purpose")})
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self.print_guideline_error(**kwargs)
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return
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doclines = [key.strip() for key in description.split('\n')]
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if len(doclines) == 1 or (len(doclines) == 2 and doclines[-1] == ''):
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kwargs.update({'message': _("Resource description missing, "
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"should add resource description "
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"about resource's purpose")})
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self.print_guideline_error(**kwargs)
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return
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self._check_description_summary(doclines[0], kwargs, 'resource')
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self._check_description_details(doclines, kwargs, 'resource')
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def _check_resource_schemas(self, resource, schema, schema_name,
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error_path=None):
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for key, value in six.iteritems(schema):
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if error_path is None:
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error_path = [resource.__name__, key]
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else:
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error_path.append(key)
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# need to check sub-schema of current schema, if exists
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if (hasattr(value, 'schema') and
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getattr(value, 'schema') is not None):
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self._check_resource_schemas(resource, value.schema,
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schema_name, error_path)
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description = value.description
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kwargs = {'path': resource.__module__, 'details': error_path}
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if description is None:
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if (value.support_status.status == support.SUPPORTED and
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not isinstance(value.schema,
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constraints.AnyIndexDict) and
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not isinstance(schema, constraints.AnyIndexDict)):
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kwargs.update({'message': _("%s description "
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"missing, need to add "
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"description about property's "
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"purpose") % schema_name})
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self.print_guideline_error(**kwargs)
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error_path.pop()
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continue
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self._check_description_summary(description, kwargs, schema_name)
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error_path.pop()
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def _check_resource_methods(self, resource):
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for method in six.itervalues(resource.__dict__):
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# need to skip non-functions attributes
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if not callable(method):
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continue
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description = method.__doc__
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if not description:
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continue
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if method.__name__.startswith('__'):
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continue
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doclines = [key.strip() for key in description.split('\n')]
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kwargs = {'path': resource.__module__,
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'details': [resource.__name__, method.__name__]}
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self._check_description_summary(doclines[0], kwargs, 'method')
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if len(doclines) == 2:
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kwargs.update({'message': _('Method description summary '
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'should be in one line')})
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self.print_guideline_error(**kwargs)
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continue
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if len(doclines) > 1:
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self._check_description_details(doclines, kwargs, 'method')
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def check_trailing_spaces(self):
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for cls in self.resources_classes:
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cls_file = open(cls.__module__.replace('.', '/') + '.py')
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lines = [line.strip() for line in cls_file.readlines()]
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idx = 0
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kwargs = {'path': cls.__module__}
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while idx < len(lines):
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if ('properties_schema' in lines[idx] or
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'attributes_schema' in lines[idx]):
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level = len(re.findall('(\{|\()', lines[idx]))
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level -= len(re.findall('(\}|\))', lines[idx]))
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idx += 1
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while level != 0:
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level += len(re.findall('(\{|\()', lines[idx]))
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level -= len(re.findall('(\}|\))', lines[idx]))
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if re.search("^((\'|\") )", lines[idx]):
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kwargs.update(
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{'details': 'line %s' % idx,
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'message': _('Trailing whitespace should '
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'be on previous line'),
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'snippet': lines[idx]})
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self.print_guideline_error(**kwargs)
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elif (re.search("(\S(\'|\"))$", lines[idx - 1]) and
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re.search("^((\'|\")\S)", lines[idx])):
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kwargs.update(
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{'details': 'line %s' % (idx - 1),
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'message': _('Omitted whitespace at the '
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'end of the line'),
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'snippet': lines[idx - 1]})
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self.print_guideline_error(**kwargs)
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idx += 1
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idx += 1
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def _check_description_summary(self, description, error_kwargs,
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error_key):
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if re.search("^[a-z]", description):
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error_kwargs.update(
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{'message': _('%s description summary should start '
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'with uppercase letter') % error_key.title(),
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'snippet': description})
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self.print_guideline_error(**error_kwargs)
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if not description.endswith('.'):
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error_kwargs.update(
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{'message': _('%s description summary omitted '
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'terminator at the end') % error_key.title(),
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'snippet': description})
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self.print_guideline_error(**error_kwargs)
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if re.search("\s{2,}", description):
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error_kwargs.update(
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{'message': _('%s description contains double or more '
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'whitespaces') % error_key.title(),
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'snippet': description})
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self.print_guideline_error(**error_kwargs)
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def _check_description_details(self, doclines, error_kwargs,
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error_key):
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if re.search("\S", doclines[1]):
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error_kwargs.update(
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{'message': _('%s description summary and '
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'main resource description should be '
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'separated by blank line') % error_key.title(),
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'snippet': doclines[0]})
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self.print_guideline_error(**error_kwargs)
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if re.search("^[a-z]", doclines[2]):
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error_kwargs.update(
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{'message': _('%s description should start '
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'with with uppercase '
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'letter') % error_key.title(),
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'snippet': doclines[2]})
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self.print_guideline_error(**error_kwargs)
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if doclines[-1] != '':
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error_kwargs.update(
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{'message': _('%s description multistring '
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'should have singly closing quotes at '
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'the next line') % error_key.title(),
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'snippet': doclines[-1]})
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self.print_guideline_error(**error_kwargs)
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params = False
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for line in doclines[1:]:
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if re.search("\s{2,}", line):
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error_kwargs.update(
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{'message': _('%s description '
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'contains double or more '
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'whitespaces') % error_key.title(),
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'snippet': line})
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self.print_guideline_error(**error_kwargs)
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if re.search("^(:param|:type|:returns|:rtype|:raises)",
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line):
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params = True
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if not params and not doclines[-2].endswith('.'):
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error_kwargs.update(
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{'message': _('%s description omitted '
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'terminator at the end') % error_key.title(),
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'snippet': doclines[-2]})
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self.print_guideline_error(**error_kwargs)
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def print_guideline_error(self, path, details, message, snippet=None):
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if isinstance(details, list):
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details = '.'.join(details)
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msg = _('ERROR (in %(path)s: %(details)s): %(message)s') % {
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'message': message,
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'path': path.replace('.', '/'),
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'details': details
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}
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if snippet is not None:
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msg = _('%(msg)s\n (Error snippet): %(snippet)s') % {
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'msg': msg,
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'snippet': '%s...' % snippet[:79]
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}
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print(msg)
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self.error_count += 1
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def parse_args():
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parser = argparse.ArgumentParser()
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parser.add_argument('--exclude', '-e', metavar='<FOLDER>',
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nargs='+',
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help=_('Exclude specified paths from checking.'))
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return parser.parse_args()
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if __name__ == '__main__':
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args = parse_args()
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guidelines = HeatCustomGuidelines(args.exclude or [])
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guidelines.run_check()
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