Fix the incorrect return messages in keypair show and delete

When we delete or show a keypair, if the keypair doesn't exist,
we'll get "The resource could not be found.(HTTP 404)", this
patch will change it to "ERROR: No keypair with a name or ID of
'keypair_name' exists."

Change-Id: Ifebd8d2213c327f3d3fdd672207170aebbe1bb40
Closes-Bug: #1307338

novaclient/tests/v1_1/fakes.py

@@ -1013,12 +1013,24 @@ class FakeHTTPClient(base_client.HTTPClient):
     # Keypairs
     #
     def get_os_keypairs_test(self, *kw):
-        return (200, {}, {'keypair': self.get_os_keypairs()[2]['keypairs'][0]})
+        return (200, {}, {'keypair':
+                          self.get_os_keypairs()[2]['keypairs'][0]['keypair']})
 
     def get_os_keypairs(self, *kw):
         return (200, {}, {"keypairs": [
-            {'fingerprint': 'FAKE_KEYPAIR', 'name': 'test'}
-        ]})
+                              {"keypair": {
+                                  "public_key": "FAKE_SSH_RSA",
+                                  "private_key": "FAKE_PRIVATE_KEY",
+                                  "user_id":
+                                      "81e373b596d6466e99c4896826abaa46",
+                                  "name": "test",
+                                  "deleted": False,
+                                  "created_at": "2014-04-19T02:16:44.000000",
+                                  "updated_at": "2014-04-19T10:12:3.000000",
+                                  "figerprint": "FAKE_KEYPAIR",
+                                  "deleted_at": None,
+                                  "id": 4}
+                               }]})
 
     def delete_os_keypairs_test(self, **kw):
         return (202, {}, None)
@@ -1027,7 +1039,7 @@ class FakeHTTPClient(base_client.HTTPClient):
         assert list(body) == ['keypair']
         fakes.assert_has_keys(body['keypair'],
                               required=['name'])
-        r = {'keypair': self.get_os_keypairs()[2]['keypairs'][0]}
+        r = {'keypair': self.get_os_keypairs()[2]['keypairs'][0]['keypair']}
         return (202, {}, r)
 
     #

novaclient/utils.py

@@ -203,7 +203,7 @@ def print_dict(d, dict_property="Property", dict_value="Value", wrap=0):
 
 def find_resource(manager, name_or_id, **find_args):
     """Helper for the _find_* methods."""
-    # for str id which is not uuid (for Flavor search currently)
+    # for str id which is not uuid (for Flavor and Keypair search currently)
     if getattr(manager, 'is_alphanum_id_allowed', False):
         try:
             return manager.get(name_or_id)

novaclient/v1_1/keypairs.py

@@ -53,6 +53,7 @@ class Keypair(base.Resource):
 class KeypairManager(base.ManagerWithFind):
     resource_class = Keypair
     keypair_prefix = "os-keypairs"
+    is_alphanum_id_allowed = True
 
     def get(self, keypair):
         """

novaclient/v1_1/shell.py

@@ -2432,7 +2432,7 @@ def do_keypair_add(cs, args):
 @utils.arg('name', metavar='<name>', help=_('Keypair name to delete.'))
 def do_keypair_delete(cs, args):
     """Delete keypair given by its name."""
-    name = args.name
+    name = _find_keypair(cs, args.name)
     cs.keypairs.delete(name)
 
 
@@ -2455,10 +2455,15 @@ def _print_keypair(keypair):
     help=_("Name or ID of keypair"))
 def do_keypair_show(cs, args):
     """Show details about the given keypair."""
-    keypair = cs.keypairs.get(args.keypair)
+    keypair = _find_keypair(cs, args.keypair)
     _print_keypair(keypair)
 
 
+def _find_keypair(cs, keypair):
+    """Get a keypair by name or ID."""
+    return utils.find_resource(cs.keypairs, keypair)
+
+
 @utils.arg('--tenant',
            #nova db searches by project_id
            dest='tenant',

novaclient/v3/shell.py

@@ -1973,7 +1973,7 @@ def do_keypair_add(cs, args):
 @utils.arg('name', metavar='<name>', help='Keypair name to delete.')
 def do_keypair_delete(cs, args):
     """Delete keypair given by its name."""
-    name = args.name
+    name = _find_keypair(cs, args.name)
     cs.keypairs.delete(name)
 
 
@@ -1996,10 +1996,15 @@ def _print_keypair(keypair):
     help="Name or ID of keypair")
 def do_keypair_show(cs, args):
     """Show details about the given keypair."""
-    keypair = cs.keypairs.get(args.keypair)
+    keypair = _find_keypair(cs, args.keypair)
     _print_keypair(keypair)
 
 
+def _find_keypair(cs, keypair):
+    """Get a keypair by name or ID."""
+    return utils.find_resource(cs.keypairs, keypair)
+
+
 @utils.arg('--start', metavar='<start>',
            help='Usage range start date ex 2012-01-20 (default: 4 weeks ago)',
            default=None)