Fixes a bug related to incorrect reparsing of flags and prevents many extra reparses.

bin/nova-dhcpbridge

@@ -108,6 +108,13 @@ def main():
     interface = os.environ.get('DNSMASQ_INTERFACE', FLAGS.dnsmasq_interface)
     if int(os.environ.get('TESTING', '0')):
         from nova.tests import fake_flags
+
+    #if FLAGS.fake_rabbit:
+    #    LOG.debug(_("leasing ip"))
+    #    network_manager = utils.import_object(FLAGS.network_manager)
+    ##    reload(fake_flags)
+    #    from nova.tests import fake_flags
+
     action = argv[1]
     if action in ['add', 'del', 'old']:
         mac = argv[2]

nova/flags.py

@@ -110,7 +110,7 @@ class FlagValues(gflags.FlagValues):
         return name in self.__dict__['__dirty']
 
     def ClearDirty(self):
-        self.__dict__['__is_dirty'] = []
+        self.__dict__['__dirty'] = []
 
     def WasAlreadyParsed(self):
         return self.__dict__['__was_already_parsed']
@@ -119,11 +119,12 @@ class FlagValues(gflags.FlagValues):
         if '__stored_argv' not in self.__dict__:
             return
         new_flags = FlagValues(self)
-        for k in self.__dict__['__dirty']:
+        for k in self.FlagDict().iterkeys():
             new_flags[k] = gflags.FlagValues.__getitem__(self, k)
 
+        new_flags.Reset()
         new_flags(self.__dict__['__stored_argv'])
-        for k in self.__dict__['__dirty']:
+        for k in new_flags.FlagDict().iterkeys():
             setattr(self, k, getattr(new_flags, k))
         self.ClearDirty()
 

nova/tests/fake_flags.py

@@ -21,24 +21,24 @@ from nova import flags
 FLAGS = flags.FLAGS
 
 flags.DECLARE('volume_driver', 'nova.volume.manager')
-FLAGS.volume_driver = 'nova.volume.driver.FakeISCSIDriver'
-FLAGS.connection_type = 'fake'
-FLAGS.fake_rabbit = True
+FLAGS['volume_driver'].SetDefault('nova.volume.driver.FakeISCSIDriver')
+FLAGS['connection_type'].SetDefault('fake')
+FLAGS['fake_rabbit'].SetDefault(True)
 flags.DECLARE('auth_driver', 'nova.auth.manager')
-FLAGS.auth_driver = 'nova.auth.dbdriver.DbDriver'
+FLAGS['auth_driver'].SetDefault('nova.auth.dbdriver.DbDriver')
 flags.DECLARE('network_size', 'nova.network.manager')
 flags.DECLARE('num_networks', 'nova.network.manager')
 flags.DECLARE('fake_network', 'nova.network.manager')
-FLAGS.network_size = 8
-FLAGS.num_networks = 2
-FLAGS.fake_network = True
-FLAGS.image_service = 'nova.image.local.LocalImageService'
+FLAGS['network_size'].SetDefault(8)
+FLAGS['num_networks'].SetDefault(2)
+FLAGS['fake_network'].SetDefault(True)
+FLAGS['image_service'].SetDefault('nova.image.local.LocalImageService')
 flags.DECLARE('num_shelves', 'nova.volume.driver')
 flags.DECLARE('blades_per_shelf', 'nova.volume.driver')
 flags.DECLARE('iscsi_num_targets', 'nova.volume.driver')
-FLAGS.num_shelves = 2
-FLAGS.blades_per_shelf = 4
-FLAGS.iscsi_num_targets = 8
-FLAGS.verbose = True
-FLAGS.sqlite_db = "tests.sqlite"
-FLAGS.use_ipv6 = True
+FLAGS['num_shelves'].SetDefault(2)
+FLAGS['blades_per_shelf'].SetDefault(4)
+FLAGS['iscsi_num_targets'].SetDefault(8)
+FLAGS['verbose'].SetDefault(True)
+FLAGS['sqlite_db'].SetDefault("tests.sqlite")
+FLAGS['use_ipv6'].SetDefault(True)

nova/tests/real_flags.py

@@ -1,26 +0,0 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
-# Copyright 2010 United States Government as represented by the
-# Administrator of the National Aeronautics and Space Administration.
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-from nova import flags
-
-FLAGS = flags.FLAGS
-
-FLAGS.connection_type = 'libvirt'
-FLAGS.fake_rabbit = False
-FLAGS.fake_network = False
-FLAGS.verbose = False

nova/tests/test_flags.py

@@ -91,6 +91,20 @@ class FlagsTestCase(test.TestCase):
         self.assert_('runtime_answer' in self.global_FLAGS)
         self.assertEqual(self.global_FLAGS.runtime_answer, 60)
 
+    def test_long_vs_short_flags(self):
+        flags.DEFINE_string('duplicate_answer_long', 'val', 'desc',
+                            flag_values=self.global_FLAGS)
+        argv = ['flags_test', '--duplicate_answer=60', 'extra_arg']
+        args = self.global_FLAGS(argv)
+
+        self.assert_('duplicate_answer' not in self.global_FLAGS)
+        self.assert_(self.global_FLAGS.duplicate_answer_long, 60)
+
+        flags.DEFINE_integer('duplicate_answer', 60, 'desc',
+                             flag_values=self.global_FLAGS)
+        self.assertEqual(self.global_FLAGS.duplicate_answer, 60)
+        self.assertEqual(self.global_FLAGS.duplicate_answer_long, 'val')
+
     def test_flag_leak_left(self):
         self.assertEqual(FLAGS.flags_unittest, 'foo')
         FLAGS.flags_unittest = 'bar'