volume: Add 'volume transfer request create --(no-)snapshots' option

This closes a gap with cinderclient's 'transfer-create' command.

Change-Id: I7386a7be15c0e3ee87abbcfc2275ba8524c10ff8
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>
Story: 2009054
Task: 42831

1 files changed, 36 insertions, 0 deletions

diff --git a/openstackclient/volume/v2/volume_transfer_request.py b/openstackclient/volume/v2/volume_transfer_request.py
index 2a1ace1f..89199336 100644
--- a/openstackclient/volume/v2/volume_transfer_request.py
+++ b/openstackclient/volume/v2/volume_transfer_request.py
@@ -16,6 +16,7 @@
 
 import logging
 
+from cinderclient import api_versions
 from osc_lib.command import command
 from osc_lib import exceptions
 from osc_lib import utils
@@ -77,6 +78,25 @@ class CreateTransferRequest(command.ShowOne):
             help=_('New transfer request name (default to None)'),
         )
         parser.add_argument(
+            '--snapshots',
+            action='store_true',
+            dest='snapshots',
+            help=_(
+                'Allow transfer volumes without snapshots (default) '
+                '(supported by --os-volume-api-version 3.55 or later)'
+            ),
+            default=None,
+        )
+        parser.add_argument(
+            '--no-snapshots',
+            action='store_false',
+            dest='snapshots',
+            help=_(
+                'Disallow transfer volumes without snapshots '
+                '(supported by --os-volume-api-version 3.55 or later)'
+            ),
+        )
+        parser.add_argument(
             'volume',
             metavar="<volume>",
             help=_('Volume to transfer (name or ID)'),
@@ -85,6 +105,21 @@ class CreateTransferRequest(command.ShowOne):
 
     def take_action(self, parsed_args):
         volume_client = self.app.client_manager.volume
+
+        kwargs = {}
+
+        if parsed_args.snapshots is not None:
+            if volume_client.api_version < api_versions.APIVersion('3.55'):
+                msg = _(
+                    "--os-volume-api-version 3.55 or greater is required to "
+                    "support the '--(no-)snapshots' option"
+                )
+                raise exceptions.CommandError(msg)
+
+            # unfortunately this option is negative so we have to reverse
+            # things
+            kwargs['no_snapshots'] = not parsed_args.snapshots
+
         volume_id = utils.find_resource(
             volume_client.volumes,
             parsed_args.volume,
@@ -92,6 +127,7 @@ class CreateTransferRequest(command.ShowOne):
         volume_transfer_request = volume_client.transfers.create(
             volume_id,
             parsed_args.name,
+            **kwargs,
         )
         volume_transfer_request._info.pop("links", None)