Make set/unset commands in network return normally when nothing specified

set/unset commands should ends up normally instead of raising
an exception when nothing is specified to modify. The main
reason is: When nothing is specified, the command sets/unsets
nothing, which is a normal behavior, and ends up normally.
No API call fails. No error happens.

This patch also adds a releasenote for both network, and volume
commands that fix patch has been merged.

Change-Id: I78c348066078decd350417a431f3b8bea8fcf9ef
Partial-bug: #1588588

12 files changed, 50 insertions, 38 deletions

diff --git a/openstackclient/network/v2/address_scope.py b/openstackclient/network/v2/address_scope.py
index dbc6865f..2e6cc30b 100644
--- a/openstackclient/network/v2/address_scope.py
+++ b/openstackclient/network/v2/address_scope.py
@@ -200,9 +200,6 @@ class SetAddressScope(command.Command):
             attrs['shared'] = True
         if parsed_args.no_share:
             attrs['shared'] = False
-        if attrs == {}:
-            msg = _("Nothing specified to be set.")
-            raise exceptions.CommandError(msg)
         client.update_address_scope(obj, **attrs)
 
 
diff --git a/openstackclient/network/v2/network.py b/openstackclient/network/v2/network.py
index bf01e2ec..87e65dad 100644
--- a/openstackclient/network/v2/network.py
+++ b/openstackclient/network/v2/network.py
@@ -14,7 +14,6 @@
 """Network action implementations"""
 
 from openstackclient.common import command
-from openstackclient.common import exceptions
 from openstackclient.common import utils
 from openstackclient.i18n import _
 from openstackclient.identity import common as identity_common
@@ -434,10 +433,6 @@ class SetNetwork(command.Command):
         obj = client.find_network(parsed_args.network, ignore_missing=False)
 
         attrs = _get_attrs(self.app.client_manager, parsed_args)
-        if attrs == {}:
-            msg = _("Nothing specified to be set")
-            raise exceptions.CommandError(msg)
-
         client.update_network(obj, **attrs)
 
 
diff --git a/openstackclient/network/v2/port.py b/openstackclient/network/v2/port.py
index 7ef3964b..b117897a 100644
--- a/openstackclient/network/v2/port.py
+++ b/openstackclient/network/v2/port.py
@@ -426,9 +426,6 @@ class SetPort(command.Command):
         elif parsed_args.no_fixed_ip:
             attrs['fixed_ips'] = []
 
-        if attrs == {}:
-            msg = _("Nothing specified to be set")
-            raise exceptions.CommandError(msg)
         client.update_port(obj, **attrs)
 
 
diff --git a/openstackclient/network/v2/router.py b/openstackclient/network/v2/router.py
index a2f0df1d..25487149 100644
--- a/openstackclient/network/v2/router.py
+++ b/openstackclient/network/v2/router.py
@@ -18,7 +18,6 @@ import json
 import logging
 
 from openstackclient.common import command
-from openstackclient.common import exceptions
 from openstackclient.common import parseractions
 from openstackclient.common import utils
 from openstackclient.i18n import _
@@ -426,10 +425,6 @@ class SetRouter(command.Command):
                 route['nexthop'] = route.pop('gateway')
             attrs['routes'] = obj.routes + parsed_args.routes
 
-        if attrs == {}:
-            msg = _("Nothing specified to be set")
-            raise exceptions.CommandError(msg)
-
         client.update_router(obj, **attrs)
 
 
diff --git a/openstackclient/network/v2/subnet.py b/openstackclient/network/v2/subnet.py
index e7e1be99..8e378c7e 100644
--- a/openstackclient/network/v2/subnet.py
+++ b/openstackclient/network/v2/subnet.py
@@ -373,9 +373,6 @@ class SetSubnet(command.Command):
         obj = client.find_subnet(parsed_args.subnet, ignore_missing=False)
         attrs = _get_attrs(self.app.client_manager, parsed_args,
                            is_create=False)
-        if not attrs:
-            msg = "Nothing specified to be set"
-            raise exceptions.CommandError(msg)
         if 'dns_nameservers' in attrs:
             attrs['dns_nameservers'] += obj.dns_nameservers
         if 'host_routes' in attrs:
diff --git a/openstackclient/network/v2/subnet_pool.py b/openstackclient/network/v2/subnet_pool.py
index a1a94426..17f1e97d 100644
--- a/openstackclient/network/v2/subnet_pool.py
+++ b/openstackclient/network/v2/subnet_pool.py
@@ -14,7 +14,6 @@
 """Subnet pool action implementations"""
 
 from openstackclient.common import command
-from openstackclient.common import exceptions
 from openstackclient.common import parseractions
 from openstackclient.common import utils
 from openstackclient.i18n import _
@@ -286,9 +285,6 @@ class SetSubnetPool(command.Command):
                                       ignore_missing=False)
 
         attrs = _get_attrs(self.app.client_manager, parsed_args)
-        if attrs == {}:
-            msg = _("Nothing specified to be set")
-            raise exceptions.CommandError(msg)
 
         # Existing prefixes must be a subset of the new prefixes.
         if 'prefixes' in attrs:
diff --git a/openstackclient/tests/network/v2/test_address_scope.py b/openstackclient/tests/network/v2/test_address_scope.py
index b4f4fa88..d02f01ca 100644
--- a/openstackclient/tests/network/v2/test_address_scope.py
+++ b/openstackclient/tests/network/v2/test_address_scope.py
@@ -313,8 +313,12 @@ class TestSetAddressScope(TestAddressScope):
         ]
 
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
-        self.assertRaises(exceptions.CommandError, self.cmd.take_action,
-                          parsed_args)
+        result = self.cmd.take_action(parsed_args)
+
+        attrs = {}
+        self.network.update_address_scope.assert_called_with(
+            self._address_scope, **attrs)
+        self.assertIsNone(result)
 
     def test_set_name_and_share(self):
         arglist = [
diff --git a/openstackclient/tests/network/v2/test_network.py b/openstackclient/tests/network/v2/test_network.py
index ba810f16..509259a8 100644
--- a/openstackclient/tests/network/v2/test_network.py
+++ b/openstackclient/tests/network/v2/test_network.py
@@ -609,8 +609,12 @@ class TestSetNetwork(TestNetwork):
         verifylist = [('network', self._network.name), ]
 
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
-        self.assertRaises(exceptions.CommandError, self.cmd.take_action,
-                          parsed_args)
+        result = self.cmd.take_action(parsed_args)
+
+        attrs = {}
+        self.network.update_network.assert_called_once_with(
+            self._network, **attrs)
+        self.assertIsNone(result)
 
 
 class TestShowNetwork(TestNetwork):
diff --git a/openstackclient/tests/network/v2/test_port.py b/openstackclient/tests/network/v2/test_port.py
index dd98a637..628a5d52 100644
--- a/openstackclient/tests/network/v2/test_port.py
+++ b/openstackclient/tests/network/v2/test_port.py
@@ -426,6 +426,21 @@ class TestSetPort(TestPort):
         self.network.update_port.assert_called_once_with(self._port, **attrs)
         self.assertIsNone(result)
 
+    def test_set_nothing(self):
+        arglist = [
+            self._port.name,
+        ]
+        verifylist = [
+            ('port', self._port.name),
+        ]
+
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+        result = self.cmd.take_action(parsed_args)
+
+        attrs = {}
+        self.network.update_port.assert_called_once_with(self._port, **attrs)
+        self.assertIsNone(result)
+
 
 class TestShowPort(TestPort):
 
diff --git a/openstackclient/tests/network/v2/test_router.py b/openstackclient/tests/network/v2/test_router.py
index 99b41d2d..b25381ef 100644
--- a/openstackclient/tests/network/v2/test_router.py
+++ b/openstackclient/tests/network/v2/test_router.py
@@ -13,7 +13,6 @@
 
 import mock
 
-from openstackclient.common import exceptions
 from openstackclient.common import utils as osc_utils
 from openstackclient.network.v2 import router
 from openstackclient.tests.network.v2 import fakes as network_fakes
@@ -568,12 +567,20 @@ class TestSetRouter(TestRouter):
                           self.cmd, arglist, verifylist)
 
     def test_set_nothing(self):
-        arglist = [self._router.name, ]
-        verifylist = [('router', self._router.name), ]
+        arglist = [
+            self._router.name,
+        ]
+        verifylist = [
+            ('router', self._router.name),
+        ]
 
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
-        self.assertRaises(exceptions.CommandError, self.cmd.take_action,
-                          parsed_args)
+        result = self.cmd.take_action(parsed_args)
+
+        attrs = {}
+        self.network.update_router.assert_called_once_with(
+            self._router, **attrs)
+        self.assertIsNone(result)
 
 
 class TestShowRouter(TestRouter):
diff --git a/openstackclient/tests/network/v2/test_subnet.py b/openstackclient/tests/network/v2/test_subnet.py
index 22c288f9..25684d63 100644
--- a/openstackclient/tests/network/v2/test_subnet.py
+++ b/openstackclient/tests/network/v2/test_subnet.py
@@ -14,7 +14,6 @@
 import copy
 import mock
 
-from openstackclient.common import exceptions
 from openstackclient.common import utils
 from openstackclient.network.v2 import subnet as subnet_v2
 from openstackclient.tests import fakes
@@ -549,8 +548,11 @@ class TestSetSubnet(TestSubnet):
         verifylist = [('subnet', self._subnet.name)]
 
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
-        self.assertRaises(exceptions.CommandError, self.cmd.take_action,
-                          parsed_args)
+        result = self.cmd.take_action(parsed_args)
+
+        attrs = {}
+        self.network.update_subnet.assert_called_with(self._subnet, **attrs)
+        self.assertIsNone(result)
 
     def test_append_options(self):
         _testsubnet = network_fakes.FakeSubnet.create_one_subnet(
diff --git a/openstackclient/tests/network/v2/test_subnet_pool.py b/openstackclient/tests/network/v2/test_subnet_pool.py
index de12c9e9..f7bb5895 100644
--- a/openstackclient/tests/network/v2/test_subnet_pool.py
+++ b/openstackclient/tests/network/v2/test_subnet_pool.py
@@ -15,7 +15,6 @@ import argparse
 import copy
 import mock
 
-from openstackclient.common import exceptions
 from openstackclient.common import utils
 from openstackclient.network.v2 import subnet_pool
 from openstackclient.tests import fakes
@@ -443,10 +442,14 @@ class TestSetSubnetPool(TestSubnetPool):
     def test_set_nothing(self):
         arglist = [self._subnet_pool.name, ]
         verifylist = [('subnet_pool', self._subnet_pool.name), ]
+
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+        result = self.cmd.take_action(parsed_args)
 
-        self.assertRaises(exceptions.CommandError, self.cmd.take_action,
-                          parsed_args)
+        attrs = {}
+        self.network.update_subnet_pool.assert_called_once_with(
+            self._subnet_pool, **attrs)
+        self.assertIsNone(result)
 
     def test_set_len_negative(self):
         arglist = [