Raise hacking to latest 2.0.0 release

We were capped at a very old version of hacking. Hacking itself caps the
various linters it uses to remain consistent, so our pep8 job was not
checking quite a bit that current versions have added.

This raises that limit to the latest to get up to the level of other
projects and addresses the errors the updated linters uncovered.

Change-Id: I89a9d73fbd59606a649e26077acebc5c42873d67
Co-authored-by: Sean McGinnis <sean.mcginnis@gmail.com>

glance/api/v1/upload_utils.py

@@ -242,7 +242,7 @@ def upload_data_to_store(req, image_meta, image_data, store, notifier):
                                                request=req,
                                                content_type='text/plain')
 
-    except exception.ImageSizeLimitExceeded as e:
+    except exception.ImageSizeLimitExceeded:
         msg = (_("Denying attempt to upload image larger than %d bytes.")
                % CONF.image_size_cap)
         LOG.warn(msg)
@@ -273,7 +273,7 @@ def upload_data_to_store(req, image_meta, image_data, store, notifier):
             LOG.exception(msg)
             safe_kill(req, image_id, 'saving')
 
-    except (ValueError, IOError) as e:
+    except (ValueError, IOError):
         msg = _("Client disconnected before sending all data to backend")
         LOG.warn(msg)
         safe_kill(req, image_id, 'saving')
@@ -281,7 +281,7 @@ def upload_data_to_store(req, image_meta, image_data, store, notifier):
                                        content_type="text/plain",
                                        request=req)
 
-    except Exception as e:
+    except Exception:
         msg = _("Failed to upload image %s") % image_id
         LOG.exception(msg)
         safe_kill(req, image_id, 'saving')

glance/api/v2/image_data.py

@@ -234,7 +234,7 @@ class ImageDataController(object):
             LOG.exception(msg)
             raise webob.exc.HTTPConflict(explanation=e.msg, request=req)
 
-        except exception.Forbidden as e:
+        except exception.Forbidden:
             msg = ("Not allowed to upload image data for image %s" %
                    image_id)
             LOG.debug(msg)
@@ -283,16 +283,16 @@ class ImageDataController(object):
             self._delete(image_repo, image)
             raise webob.exc.HTTPBadRequest(explanation=msg)
 
-        except webob.exc.HTTPGone as e:
+        except webob.exc.HTTPGone:
             with excutils.save_and_reraise_exception():
                 LOG.error(_LE("Failed to upload image data due to HTTP error"))
 
-        except webob.exc.HTTPError as e:
+        except webob.exc.HTTPError:
             with excutils.save_and_reraise_exception():
                 LOG.error(_LE("Failed to upload image data due to HTTP error"))
                 self._restore(image_repo, image)
 
-        except Exception as e:
+        except Exception:
             with excutils.save_and_reraise_exception():
                 LOG.error(_LE("Failed to upload image data due to "
                               "internal error"))
@@ -346,7 +346,7 @@ class ImageDataController(object):
                 staging_store.add(
                     image_id, utils.LimitingReader(
                         utils.CooperativeReader(data), CONF.image_size_cap), 0)
-            except glance_store.Duplicate as e:
+            except glance_store.Duplicate:
                 msg = _("The image %s has data on staging") % image_id
                 raise webob.exc.HTTPConflict(explanation=msg)
 
@@ -390,7 +390,7 @@ class ImageDataController(object):
             LOG.debug(msg)
             raise webob.exc.HTTPConflict(explanation=e.msg, request=req)
 
-        except Exception as e:
+        except Exception:
             with excutils.save_and_reraise_exception():
                 LOG.exception(_LE("Failed to stage image data due to "
                                   "internal error"))

glance/api/v2/images.py

@@ -183,10 +183,8 @@ class ImagesController(object):
 
         if (import_method == 'web-download' and
                 not utils.validate_import_uri(uri)):
-                LOG.debug("URI for web-download does not pass filtering: %s",
-                          uri)
-                msg = (_("URI for web-download does not pass filtering: %s") %
-                       uri)
+            LOG.debug("URI for web-download does not pass filtering: %s", uri)
+            msg = (_("URI for web-download does not pass filtering: %s") % uri)
             raise webob.exc.HTTPBadRequest(explanation=msg)
 
         try:
@@ -506,7 +504,7 @@ class ImagesController(object):
         except (glance_store.Forbidden, exception.Forbidden) as e:
             LOG.debug("User not permitted to delete image '%s'", image_id)
             raise webob.exc.HTTPForbidden(explanation=e.msg)
-        except (glance_store.NotFound, exception.NotFound) as e:
+        except (glance_store.NotFound, exception.NotFound):
             msg = (_("Failed to find image %(image_id)s to delete") %
                    {'image_id': image_id})
             LOG.warn(msg)
@@ -1176,8 +1174,8 @@ class ResponseSerializer(wsgi.JSONResponseSerializer):
                 locations = _get_image_locations(image)
                 if locations:
                     # Choose best location configured strategy
-                    l = location_strategy.choose_best_location(locations)
-                    image_view['direct_url'] = l['url']
+                    loc = location_strategy.choose_best_location(locations)
+                    image_view['direct_url'] = loc['url']
                 else:
                     LOG.debug("The 'locations' list of image %s is empty, "
                               "not including 'direct_url' in response",

glance/api/v2/metadef_resource_types.py

@@ -128,7 +128,7 @@ class ResourceTypeController(object):
             LOG.debug("User not permitted to delete metadata resource type "
                       "'%s' within '%s' namespace", resource_type, namespace)
             raise webob.exc.HTTPForbidden(explanation=e.msg)
-        except exception.NotFound as e:
+        except exception.NotFound:
             msg = (_("Failed to find resource type %(resourcetype)s to "
                      "delete") % {'resourcetype': resource_type})
             LOG.error(msg)

glance/cmd/cache_manage.py

@@ -524,5 +524,6 @@ def main():
     except (RuntimeError, NotImplementedError) as e:
         sys.exit("ERROR: %s" % e)
 
+
 if __name__ == '__main__':
     main()

glance/cmd/replicator.py

@@ -757,7 +757,7 @@ def main():
         config.parse_args()
     except RuntimeError as e:
         sys.exit("ERROR: %s" % encodeutils.exception_to_unicode(e))
-    except SystemExit as e:
+    except SystemExit:
         sys.exit("Please specify one command")
 
     # Setup logging

glance/common/swift_store_utils.py

@@ -136,7 +136,7 @@ class SwiftParams(object):
                 reference['user'] = CONFIG.get(ref, 'user')
                 reference['key'] = CONFIG.get(ref, 'key')
                 account_params[ref] = reference
-            except (ValueError, SyntaxError, configparser.NoOptionError) as e:
+            except (ValueError, SyntaxError, configparser.NoOptionError):
                 LOG.exception(_LE("Invalid format of swift store config "
                                   "cfg"))
         return account_params

glance/common/timeutils.py

@@ -76,6 +76,7 @@ def iso8601_from_timestamp(timestamp, microsecond=False):
     """Returns an iso8601 formatted date from timestamp."""
     return isotime(datetime.datetime.utcfromtimestamp(timestamp), microsecond)
 
+
 utcnow.override_time = None
 
 

glance/common/wsgi.py

@@ -970,7 +970,7 @@ class APIMapper(routes.Mapper):
     """
 
     def routematch(self, url=None, environ=None):
-        if url is "":
+        if url == "":
             result = self._match("", environ)
             return result[0], result[1]
         return routes.Mapper.routematch(self, url, environ)

glance/common/wsgi_app.py

@@ -19,6 +19,7 @@ import osprofiler.initializer
 
 from glance.common import config
 from glance.common import store_utils
+from glance.i18n import _
 from glance import notifier
 
 CONF = cfg.CONF

glance/db/simple/api.py

@@ -1056,8 +1056,11 @@ def _sort_tasks(tasks, sort_key, sort_dir):
     reverse = False
     if tasks and not (sort_key in tasks[0]):
         raise exception.InvalidSortKey()
-    keyfn = lambda x: (x[sort_key] if x[sort_key] is not None else '',
+
+    def keyfn(x):
+        return (x[sort_key] if x[sort_key] is not None else '',
                 x['created_at'], x['id'])
+
     reverse = sort_dir == 'desc'
     tasks.sort(key=keyfn, reverse=reverse)
     return tasks

glance/db/sqlalchemy/alembic_migrations/env.py

@@ -82,6 +82,7 @@ def run_migrations_online():
         with context.begin_transaction():
             context.run_migrations()
 
+
 if context.is_offline_mode():
     run_migrations_offline()
 else:

glance/db/sqlalchemy/metadef_api/namespace.py

@@ -182,7 +182,7 @@ def _get_all_by_resource_types(context, session, filters, marker=None,
     for name, namespace_id in db_recs:
         namespace_id_list.append(namespace_id)
 
-    if len(namespace_id_list) is 0:
+    if len(namespace_id_list) == 0:
         return []
 
     filters2 = filters

glance/db/sqlalchemy/migrate_repo/schema.py

@@ -26,32 +26,40 @@ from glance.i18n import _LI
 LOG = logging.getLogger(__name__)
 
 
-String = lambda length: sqlalchemy.types.String(
+def String(length):
+    return sqlalchemy.types.String(
         length=length, convert_unicode=False,
         unicode_error=None, _warn_on_bytestring=False)
 
 
-Text = lambda: sqlalchemy.types.Text(
+def Text():
+    return sqlalchemy.types.Text(
         length=None, convert_unicode=False,
         unicode_error=None, _warn_on_bytestring=False)
 
 
-Boolean = lambda: sqlalchemy.types.Boolean(create_constraint=True, name=None)
+def Boolean():
+    return sqlalchemy.types.Boolean(create_constraint=True, name=None)
 
 
-DateTime = lambda: sqlalchemy.types.DateTime(timezone=False)
+def DateTime():
+    return sqlalchemy.types.DateTime(timezone=False)
 
 
-Integer = lambda: sqlalchemy.types.Integer()
+def Integer():
+    return sqlalchemy.types.Integer()
 
 
-BigInteger = lambda: sqlalchemy.types.BigInteger()
+def BigInteger():
+    return sqlalchemy.types.BigInteger()
 
 
-PickleType = lambda: sqlalchemy.types.PickleType()
+def PickleType():
+    return sqlalchemy.types.PickleType()
 
 
-Numeric = lambda: sqlalchemy.types.Numeric()
+def Numeric():
+    return sqlalchemy.types.Numeric()
 
 
 def from_migration_import(module_name, fromlist):

glance/db/sqlalchemy/migrate_repo/versions/003_add_disk_format.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from sqlalchemy import *  # noqa
+from sqlalchemy import Column, MetaData, Table, and_, select
 
 from glance.db.sqlalchemy.migrate_repo.schema import (
     Boolean, DateTime, Integer, String, Text, from_migration_import)  # noqa

glance/db/sqlalchemy/migrate_repo/versions/004_add_checksum.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from sqlalchemy import *  # noqa
+from sqlalchemy import Column, MetaData, Table
 
 from glance.db.sqlalchemy.migrate_repo.schema import (
     Boolean, DateTime, Integer, String, Text, from_migration_import)  # noqa

glance/db/sqlalchemy/migrate_repo/versions/005_size_big_integer.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from sqlalchemy import *  # noqa
+from sqlalchemy import Column, MetaData, Table
 
 from glance.db.sqlalchemy.migrate_repo.schema import (
     Boolean, DateTime, BigInteger, Integer, String,

glance/db/sqlalchemy/migrate_repo/versions/006_key_to_name.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from sqlalchemy import *  # noqa
+from sqlalchemy import Index, MetaData
 
 from glance.db.sqlalchemy.migrate_repo.schema import from_migration_import
 

glance/db/sqlalchemy/migrate_repo/versions/007_add_owner.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from sqlalchemy import *  # noqa
+from sqlalchemy import Column, MetaData, Table
 
 from glance.db.sqlalchemy.migrate_repo.schema import (
     Boolean, DateTime, BigInteger, Integer, String,

glance/db/sqlalchemy/migrate_repo/versions/008_add_image_members_table.py

@@ -13,7 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from sqlalchemy import *  # noqa
+from sqlalchemy import Column, ForeignKey, Index, MetaData, Table
+from sqlalchemy import UniqueConstraint
 
 from glance.db.sqlalchemy.migrate_repo.schema import (
     Boolean, DateTime, Integer, String, create_tables,

glance/db/sqlalchemy/migrate_repo/versions/009_add_mindisk_and_minram.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from sqlalchemy import *  # noqa
+from sqlalchemy import Column, MetaData, Table
 
 from glance.db.sqlalchemy.migrate_repo.schema import (
     Boolean, DateTime, Integer, String, Text)  # noqa

glance/db/sqlalchemy/migrate_repo/versions/010_default_update_at.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from sqlalchemy import *  # noqa
+from sqlalchemy import MetaData
 
 from glance.db.sqlalchemy.migrate_repo.schema import from_migration_import
 

glance/i18n.py

@@ -13,14 +13,28 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from oslo_i18n import *  # noqa
+import oslo_i18n as i18n
 
-_translators = TranslatorFactory(domain='glance')
+DOMAIN = 'glance'
+
+_translators = i18n.TranslatorFactory(domain=DOMAIN)
 
 # The primary translation function using the well-known name "_"
 _ = _translators.primary
 
 
+def enable_lazy(enable=True):
+    return i18n.enable_lazy(enable)
+
+
+def translate(value, user_locale=None):
+    return i18n.translate(value, user_locale)
+
+
+def get_available_languages(domain=DOMAIN):
+    return i18n.get_available_languages(domain)
+
+
 # i18n log translation functions are deprecated. While removing the invocations
 # requires a lot of reviewing effort, we decide to make it as no-op functions.
 def _LI(msg):

glance/tests/functional/db/base.py

@@ -1383,7 +1383,9 @@ class DriverTests(object):
             return
 
         def _assertMemberListMatch(list1, list2):
-            _simple = lambda x: set([(o['member'], o['image_id']) for o in x])
+            def _simple(x):
+                return set([(o['member'], o['image_id']) for o in x])
+
             self.assertEqual(_simple(list1), _simple(list2))
 
         # NOTE(flaper87): Update auth token, otherwise

glance/tests/functional/v2/test_metadef_resourcetypes.py

@@ -122,7 +122,7 @@ class ResourceTypeController(object):
                 raise exception.NotFound()
         except exception.Forbidden as e:
             raise webob.exc.HTTPForbidden(explanation=e.msg)
-        except exception.NotFound as e:
+        except exception.NotFound:
             msg = (_("Failed to find resource type %(resourcetype)s to "
                      "delete") % {'resourcetype': resource_type})
             LOG.error(msg)

glance/tests/unit/common/test_wsgi.py

@@ -394,9 +394,9 @@ class ResourceTest(test_utils.BaseTestCase):
 
     def test_response_headers_encoded(self):
         # prepare environment
-        for_openstack_comrades =  \
-            u'\u0417\u0430 \u043e\u043f\u0435\u043d\u0441\u0442\u0435\u043a, ' \
-            u'\u0442\u043e\u0432\u0430\u0440\u0438\u0449\u0438'
+        for_openstack_comrades = (
+            u'\u0417\u0430 \u043e\u043f\u0435\u043d\u0441\u0442\u0435\u043a, '
+            u'\u0442\u043e\u0432\u0430\u0440\u0438\u0449\u0438')
 
         class FakeController(object):
             def index(self, shirt, pants=None):

glance/tests/unit/test_db.py

@@ -61,6 +61,7 @@ class TestDbUtilities(test_utils.BaseTestCase):
         import_module.assert_called_once_with('glance.db.sqlalchemy.api')
         api.configure.assert_called_once_with()
 
+
 UUID1 = 'c80a1a6c-bd1f-41c5-90ee-81afedb1d58d'
 UUID2 = 'a85abd86-55b3-4d5b-b0b4-5d0a6e6042fc'
 UUID3 = '971ec09a-8067-4bc8-a91f-ae3557f1c4c7'

glance/tests/unit/test_scrubber.py

@@ -178,12 +178,11 @@ class ImagePager(object):
             page_size = image_count
         self.image_batches = []
         start = 0
-        l = len(images)
-        while start < l:
+        while start < image_count:
             self.image_batches.append(images[start: start + page_size])
             start += page_size
-            if (l - start) < page_size:
-                page_size = l - start
+            if (image_count - start) < page_size:
+                page_size = image_count - start
 
     def __call__(self):
         if len(self.image_batches) == 0:

glance/tests/unit/v2/test_tasks_resource.py

@@ -84,6 +84,7 @@ def _domain_fixture(task_id, **kwargs):
     task = glance.domain.Task(**task_properties)
     return task
 
+
 CONF = cfg.CONF
 CONF.import_opt('task_time_to_live', 'glance.common.config', group='task')
 

lower-constraints.txt

@@ -36,7 +36,7 @@ gitdb2==2.0.3
 GitPython==2.1.8
 glance-store==1.0.0
 greenlet==0.4.13
-hacking==0.12.0
+hacking==2.0.0
 httplib2==0.9.1
 idna==2.6
 imagesize==1.0.0

test-requirements.txt

@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 
 # Hacking already pins down pep8, pyflakes and flake8
-hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
+hacking>=2.0.0 # Apache-2.0
 
 # For translations processing
 Babel!=2.4.0,>=2.3.4 # BSD

tox.ini

@@ -121,11 +121,14 @@ ignore-path = .venv,.git,.tox,*glance/locale*,*lib/python*,glance.egg*,api-ref/b
 
 [flake8]
 # TODO(dmllr): Analyze or fix the warnings blacklisted below
+# E402  module level import not at top of file
 # E711  comparison to None should be 'if cond is not None:'
 # E712  comparison to True should be 'if cond is True:' or 'if cond:'
 # H404  multi line docstring should start with a summary
 # H405  multi line docstring summary not separated with an empty line
-ignore = E711,E712,H404,H405
+# W503  line break before binary operator - conflicting guidance
+# W504  line break after binary operator - conflicting guidance
+ignore = E402,E711,E712,H404,H405,W503,W504
 exclude = .venv,.git,.tox,dist,doc,etc,*glance/locale*,*lib/python*,*egg,build
 
 [hacking]