Use osc_lib instead of cliff

Base classes of commands are defined in cliff,
but have been encapsulated again in osc-lib for
all plugin clients. So use osc-lib instead of
cliff.

Since osc-lib 1.0.2 has released, it is stable
to use.

Change-Id: I0b9bf1c867be0181d573decadc840a887a784ca9

ironicclient/osc/v1/baremetal_node.py

@@ -18,10 +18,8 @@ import argparse
 import itertools
 import logging
 
-from cliff import command
-from cliff import lister
-from cliff import show
 from openstackclient.common import utils as oscutils
+from osc_lib.command import command
 
 from ironicclient.common.i18n import _
 from ironicclient.common import utils
@@ -105,7 +103,7 @@ class CleanBaremetalNode(ProvisionStateBaremetalNode):
             cleansteps=clean_steps)
 
 
-class CreateBaremetalNode(show.ShowOne):
+class CreateBaremetalNode(command.ShowOne):
     """Register a new node with the baremetal service"""
 
     log = logging.getLogger(__name__ + ".CreateBaremetalNode")
@@ -265,7 +263,7 @@ class InspectBaremetalNode(ProvisionStateBaremetalNode):
     PROVISION_STATE = 'inspect'
 
 
-class ListBaremetalNode(lister.Lister):
+class ListBaremetalNode(command.Lister):
     """List baremetal nodes"""
 
     log = logging.getLogger(__name__ + ".ListBaremetalNode")
@@ -656,7 +654,7 @@ class SetBaremetal(SetBaremetalNode):
         return super(SetBaremetal, self).take_action(parsed_args)
 
 
-class ShowBaremetalNode(show.ShowOne):
+class ShowBaremetalNode(command.ShowOne):
     """Show baremetal node details"""
 
     log = logging.getLogger(__name__ + ".ShowBaremetalNode")

ironicclient/osc/v1/baremetal_port.py

@@ -17,14 +17,13 @@
 import itertools
 import logging
 
-from cliff import command
-from cliff import show
+from osc_lib.command import command
 
 from ironicclient.common import utils
 from ironicclient.v1 import resource_fields as res_fields
 
 
-class CreateBaremetalPort(show.ShowOne):
+class CreateBaremetalPort(command.ShowOne):
     """Create a new port"""
 
     log = logging.getLogger(__name__ + ".CreateBaremetalPort")
@@ -104,7 +103,7 @@ class CreateBaremetalPort(show.ShowOne):
         return self.dict2columns(data)
 
 
-class ShowBaremetalPort(show.ShowOne):
+class ShowBaremetalPort(command.ShowOne):
     """Show baremetal port details."""
 
     log = logging.getLogger(__name__ + ".ShowBaremetalPort")

releasenotes/notes/osc-lib-090d62f647b9d58b.yaml

@@ -0,0 +1,4 @@
+---
+upgrade:
+  - osc-lib is a package of common support modules for writing OSC plugins.
+    So use osc-lib instead of cliff.

requirements.txt

@@ -4,9 +4,9 @@
 pbr>=1.6 # Apache-2.0
 appdirs>=1.3.0 # MIT License
 dogpile.cache>=0.6.1 # BSD
-cliff!=1.16.0,!=1.17.0,>=1.15.0 # Apache-2.0
 jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT
 keystoneauth1>=2.10.0 # Apache-2.0
+osc-lib>=1.0.2 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.utils>=3.16.0 # Apache-2.0
 PrettyTable<0.8,>=0.7 # BSD