Gate-unbreaking combo review

Fix argument precedence hack
  Working around issues in os-client-config <= 1.18.0

  This is ugly because the issues in o-c-c 1.19.1 run even deeper
  than in 1.18.0, so we're going to use 1.19.0 get_one_cloud() that
  is known to work for OSC and fix o-c-c with an axe.

Remove return values for set commands
  'identity provider set' and 'service provider set' were still
  returning their show-like data, this is a fail for set commands
  now, don't know how this ever passed before...

Constraints are ready to be used for tox.ini
  Per email[1] from Andreas, we don't need to hack at install_command
  any longer.

  [1] http://openstack.markmail.org/thread/a4l7tokbotwqvuoh

Co-authorioed-by: Steve Martinelli <s.martinelli@gmail.com>
Depends-On: I49313dc7d4f44ec897de7a375f25b7ed864226f1
Change-Id: I426548376fc7d3cdb36501310dafd8c44d22ae30

openstackclient/shell.py

@@ -25,6 +25,7 @@ from oslo_utils import importutils
 import six
 
 import openstackclient
+from openstackclient.common import client_config as cloud_config
 from openstackclient.common import clientmanager
 from openstackclient.common import commandmanager
 
@@ -127,9 +128,33 @@ class OpenStackShell(shell.OpenStackShell):
     def initialize_app(self, argv):
         super(OpenStackShell, self).initialize_app(argv)
 
-        # For now we need to build our own ClientManager so re-do what
-        # has already been done :(
-        # TODO(dtroyer): remove when osc-lib is fixed
+        # Argument precedence is really broken in multiple places
+        # so we're just going to fix it here until o-c-c and osc-lib
+        # get sorted out.
+        # TODO(dtroyer): remove when os-client-config and osc-lib are fixed
+
+        # First, throw away what has already been done with o-c-c and
+        # use our own.
+        try:
+            cc = cloud_config.OSC_Config(
+                override_defaults={
+                    'interface': None,
+                    'auth_type': self._auth_type,
+                },
+            )
+        except (IOError, OSError) as e:
+            self.log.critical("Could not read clouds.yaml configuration file")
+            self.print_help_if_requested()
+            raise e
+
+        if not self.options.debug:
+            self.options.debug = None
+        self.cloud = cc.get_one_cloud(
+            cloud=self.options.cloud,
+            argparse=self.options,
+        )
+
+        # Then, re-create the client_manager with the correct arguments
         self.client_manager = clientmanager.ClientManager(
             cli_options=self.cloud,
             api_version=self.api_version,