1 files changed, 78 insertions, 0 deletions
diff --git a/openstackclient/common/extension.py b/openstackclient/common/extension.py
new file mode 100644
index 00000000..a8b1a6b0
--- /dev/null
+++ b/openstackclient/common/extension.py
@@ -0,0 +1,78 @@
+#   Copyright 2012-2013 OpenStack Foundation
+#
+#   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.
+#
+
+"""Extension action implementations"""
+
+import logging
+
+from cliff import lister
+
+from openstackclient.common import exceptions as exc
+from openstackclient.common import utils
+
+
+class ListExtension(lister.Lister):
+    """List extension command"""
+
+    # TODO(mfisch): add support for volume and compute
+    # when the underlying APIs support it. Add support
+    # for network when it's added to openstackclient.
+
+    log = logging.getLogger(__name__ + '.ListExtension')
+
+    def get_parser(self, prog_name):
+        parser = super(ListExtension, self).get_parser(prog_name)
+        parser.add_argument(
+            '--long',
+            action='store_true',
+            default=False,
+            help='List additional fields in output')
+        parser.add_argument(
+            '--identity',
+            action='store_true',
+            default=False,
+            help='List extensions for the Identity API')
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)' % parsed_args)
+
+        if parsed_args.long:
+            columns = ('Name', 'Namespace', 'Description',
+                       'Alias', 'Updated', 'Links')
+        else:
+            columns = ('Name', 'Alias', 'Description')
+
+        data = []
+
+        # by default we want to show everything, unless the
+        # user specifies one or more of the APIs to show
+        # for now, only identity is supported
+        show_all = (not parsed_args.identity)
+
+        if parsed_args.identity or show_all:
+            identity_client = self.app.client_manager.identity
+            try:
+                data += identity_client.extensions.list()
+            except Exception:
+                raise exc.CommandError(
+                    "Extensions list not supported by"
+                    " identity API")
+
+        return (columns,
+                (utils.get_item_properties(
+                    s, columns,
+                    formatters={},
+                ) for s in data))