Remove deprecated MigrationManager.list cell_name kwarg

The cell_name kwarg was deprecated in Pike:

I54468682d5391668a513e708e26bc3c165c95ca1

And the CLI option was removed earlier in Queens (not yet
released):

I5d11eda2a6b35de98f0484492f597a87df882013

But that change forgot about the python API binding code
so this change removes that as well and updates the release
note.

Change-Id: I0cf808eaf7df80e221b412d2374b81fd402bd037
Closes-Bug: #1668743

4 files changed, 9 insertions, 27 deletions

diff --git a/novaclient/tests/unit/v2/test_migrations.py b/novaclient/tests/unit/v2/test_migrations.py
index 408909cd..4054012f 100644
--- a/novaclient/tests/unit/v2/test_migrations.py
+++ b/novaclient/tests/unit/v2/test_migrations.py
@@ -10,8 +10,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
-
 from novaclient import api_versions
 from novaclient.tests.unit import utils
 from novaclient.tests.unit.v2 import fakes
@@ -40,33 +38,23 @@ class MigrationsTest(utils.TestCase):
             self.assertIsInstance(m, migrations.Migration)
             self.assertEqual(m.migration_type, 'live-migration')
 
-    @mock.patch('novaclient.v2.migrations.warnings.warn')
-    def test_list_migrations_with_cell_name(self, mock_warn):
-        ml = self.cs.migrations.list(cell_name="abc")
-        self.assert_request_id(ml, fakes.FAKE_REQUEST_ID_LIST)
-        self.cs.assert_called('GET', '/os-migrations?cell_name=abc')
-        for m in ml:
-            self.assertIsInstance(m, migrations.Migration)
-        self.assertTrue(mock_warn.called)
-
     def test_list_migrations_with_filters(self):
-        ml = self.cs.migrations.list('host1', 'finished', 'child1')
+        ml = self.cs.migrations.list('host1', 'finished')
         self.assert_request_id(ml, fakes.FAKE_REQUEST_ID_LIST)
 
         self.cs.assert_called(
             'GET',
-            '/os-migrations?cell_name=child1&host=host1&status=finished')
+            '/os-migrations?host=host1&status=finished')
         for m in ml:
             self.assertIsInstance(m, migrations.Migration)
 
     def test_list_migrations_with_instance_uuid_filter(self):
-        ml = self.cs.migrations.list('host1', 'finished', 'child1',
-                                     'instance_id_456')
+        ml = self.cs.migrations.list('host1', 'finished', 'instance_id_456')
         self.assert_request_id(ml, fakes.FAKE_REQUEST_ID_LIST)
 
         self.cs.assert_called(
             'GET',
-            ('/os-migrations?cell_name=child1&host=host1&'
+            ('/os-migrations?host=host1&'
              'instance_uuid=instance_id_456&status=finished'))
         self.assertEqual(1, len(ml))
         self.assertEqual('instance_id_456', ml[0].instance_uuid)
diff --git a/novaclient/v2/migrations.py b/novaclient/v2/migrations.py
index d1562b71..10e8f37f 100644
--- a/novaclient/v2/migrations.py
+++ b/novaclient/v2/migrations.py
@@ -15,9 +15,6 @@ migration interface
 """
 
 from novaclient import base
-from novaclient.i18n import _
-
-import warnings
 
 
 class Migration(base.Resource):
@@ -28,23 +25,17 @@ class Migration(base.Resource):
 class MigrationManager(base.ManagerWithFind):
     resource_class = Migration
 
-    def list(self, host=None, status=None, cell_name=None, instance_uuid=None):
+    def list(self, host=None, status=None, instance_uuid=None):
         """
         Get a list of migrations.
         :param host: (optional) filter migrations by host name.
         :param status: (optional) filter migrations by status.
-        :param cell_name: (optional) filter migrations for a cell.
         """
         opts = {}
         if host:
             opts['host'] = host
         if status:
             opts['status'] = status
-        if cell_name:
-            warnings.warn(_("Argument 'cell_name' is "
-                            "deprecated since Pike, and will "
-                            "be removed in a future release."))
-            opts['cell_name'] = cell_name
         if instance_uuid:
             opts['instance_uuid'] = instance_uuid
 
diff --git a/novaclient/v2/shell.py b/novaclient/v2/shell.py
index 7976adf8..d7dba3e2 100644
--- a/novaclient/v2/shell.py
+++ b/novaclient/v2/shell.py
@@ -5212,6 +5212,6 @@ def _print_migrations(cs, migrations):
     help=_('Fetch migrations for the given status.'))
 def do_migration_list(cs, args):
     """Print a list of migrations."""
-    migrations = cs.migrations.list(args.host, args.status, None,
+    migrations = cs.migrations.list(args.host, args.status,
                                     instance_uuid=args.instance_uuid)
     _print_migrations(cs, migrations)
diff --git a/releasenotes/notes/remove-deprecated-option-in-9.0.0-bc76629d28f1d4c4.yaml b/releasenotes/notes/remove-deprecated-option-in-9.0.0-bc76629d28f1d4c4.yaml
index 89d5afab..a98272c8 100644
--- a/releasenotes/notes/remove-deprecated-option-in-9.0.0-bc76629d28f1d4c4.yaml
+++ b/releasenotes/notes/remove-deprecated-option-in-9.0.0-bc76629d28f1d4c4.yaml
@@ -6,3 +6,6 @@ upgrade:
     - ``--tenant`` (from ``flavor access list``)
     - ``--cell_name`` (from ``migration list``)
     - ``--volume-service-name`` (global option)
+
+    As a result, the ``novaclient.v2.migrations.MigrationManager.list``
+    python API binding method no longer takes a ``cell_name`` kwarg.