Add openstack client stack snapshot list

Based from the existing heat command:
   heat snapshot-list

Change-Id: I9966641e200343bf19518487f8084d94008ac84d
Blueprint: heat-support-python-openstackclient

heatclient/osc/v1/snapshot.py

@@ -0,0 +1,58 @@
+#   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.
+#
+
+"""Orchestration v1 Stack Snapshot implementations"""
+
+import logging
+
+from cliff import lister
+from openstackclient.common import exceptions as exc
+from openstackclient.common import utils
+
+from heatclient import exc as heat_exc
+from openstackclient.i18n import _
+
+
+class ListSnapshot(lister.Lister):
+    """List stack snapshots"""
+
+    log = logging.getLogger(__name__ + ".ListSnapshot")
+
+    def get_parser(self, prog_name):
+        parser = super(ListSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            'stack',
+            metavar='<stack>',
+            help=_('Name or ID of stack containing the snapshots')
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)' % parsed_args)
+        heat_client = self.app.client_manager.orchestration
+        return self._list_snapshot(heat_client, parsed_args)
+
+    def _list_snapshot(self, heat_client, parsed_args):
+        fields = {'stack_id': parsed_args.stack}
+        try:
+            snapshots = heat_client.stacks.snapshot_list(**fields)
+        except heat_exc.HTTPNotFound:
+            raise exc.CommandError(_('Stack not found: %s') %
+                                   parsed_args.stack)
+
+        columns = ['id', 'name', 'status', 'status_reason', 'creation_time']
+        return (
+            columns,
+            (utils.get_dict_properties(s, columns)
+             for s in snapshots['snapshots'])
+        )

heatclient/tests/unit/osc/v1/test_snapshot.py

@@ -0,0 +1,54 @@
+#   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.
+#
+
+import mock
+
+from openstackclient.common import exceptions as exc
+
+from heatclient import exc as heat_exc
+from heatclient.osc.v1 import snapshot
+from heatclient.tests.unit.osc.v1 import fakes as orchestration_fakes
+
+
+class TestStack(orchestration_fakes.TestOrchestrationv1):
+    def setUp(self):
+        super(TestStack, self).setUp()
+        self.mock_client = self.app.client_manager.orchestration
+        self.stack_client = self.app.client_manager.orchestration.stacks
+
+
+class TestListSnapshot(TestStack):
+    def setUp(self):
+        super(TestListSnapshot, self).setUp()
+        self.cmd = snapshot.ListSnapshot(self.app, None)
+        self.stack_client.snapshot_list = mock.Mock(
+            return_value={'snapshots': []}
+        )
+
+    def test_snapshot_list(self):
+        arglist = ['my_stack']
+        parsed_args = self.check_parser(self.cmd, arglist, [])
+        self.cmd.take_action(parsed_args)
+        self.stack_client.snapshot_list.assert_called_with(
+            stack_id='my_stack')
+
+    def test_snapshot_list_error(self):
+        self.stack_client.snapshot_list.side_effect = heat_exc.HTTPNotFound()
+        arglist = ['my_stack']
+        parsed_args = self.check_parser(self.cmd, arglist, [])
+        error = self.assertRaises(
+            exc.CommandError,
+            self.cmd.take_action,
+            parsed_args)
+        self.assertEqual('Stack not found: my_stack',
+                         str(error))

setup.cfg

@@ -34,6 +34,7 @@ openstack.orchestration.v1 =
     stack_list = heatclient.osc.v1.stack:ListStack
     stack_create = heatclient.osc.v1.stack:CreateStack
     stack_update = heatclient.osc.v1.stack:UpdateStack
+    stack_snapshot_list = heatclient.osc.v1.snapshot:ListSnapshot
 
 
 [global]