Support to list software configs

As API has supported to list software configs, client should support
too.

Closes-Bug: #1464248
Change-Id: I977b960f0e2f0e754a603c01122eb41f0ea9dbf5

heatclient/tests/unit/test_software_configs.py

@@ -47,6 +47,17 @@ class SoftwareConfigManagerTest(testtools.TestCase):
         super(SoftwareConfigManagerTest, self).setUp()
         self.manager = software_configs.SoftwareConfigManager(mock.MagicMock())
 
+    def test_list(self):
+        config_id = 'bca6871d-86c0-4aff-b792-58a1f6947b57'
+        self.manager.client.json_request.return_value = (
+            {},
+            {'software_configs': []})
+        result = self.manager.list(limit=1, marker=config_id)
+        self.assertEqual([], result)
+        call_args = self.manager.client.get.call_args
+        self.assertEqual(
+            ('/software_configs?limit=1&marker=%s' % config_id,), *call_args)
+
     @mock.patch.object(utils, 'get_response_body')
     def test_get(self, mock_body):
         config_id = 'bca6871d-86c0-4aff-b792-58a1f6947b57'

heatclient/v1/shell.py

@@ -1216,6 +1216,22 @@ def do_config_create(hc, args):
     print(jsonutils.dumps(sc.to_dict(), indent=2))
 
 
+@utils.arg('-l', '--limit', metavar='<LIMIT>',
+           help=_('Limit the number of configs returned.'))
+@utils.arg('-m', '--marker', metavar='<ID>',
+           help=_('Return configs that appear after the given config ID.'))
+def do_config_list(hc, args):
+    '''List software configs.'''
+    kwargs = {}
+    if args.limit:
+        kwargs['limit'] = args.limit
+    if args.marker:
+        kwargs['marker'] = args.marker
+    scs = hc.software_configs.list(**kwargs)
+    fields = ['id', 'name', 'group', 'creation_time']
+    utils.print_list(scs, fields, sortby_index=None)
+
+
 @utils.arg('id', metavar='<ID>',
            help=_('ID of the config.'))
 @utils.arg('-c', '--config-only', default=False, action="store_true",

heatclient/v1/software_configs.py

@@ -10,6 +10,9 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import six
+from six.moves.urllib import parse
+
 from heatclient.common import utils
 from heatclient.openstack.common.apiclient import base
 
@@ -28,6 +31,26 @@ class SoftwareConfig(base.Resource):
 class SoftwareConfigManager(base.BaseManager):
     resource_class = SoftwareConfig
 
+    def list(self, **kwargs):
+        """Get a list of software configs.
+        :rtype: list of :class:`SoftwareConfig`
+        """
+        qparams = {}
+
+        for opt, val in six.iteritems(kwargs):
+            if val:
+                qparams[opt] = val
+
+        # Transform the dict to a sequence of two-element tuples in fixed
+        # order, then the encoded string will be consistent in Python 2&3.
+        if qparams:
+            new_qparams = sorted(qparams.items(), key=lambda x: x[0])
+            query_string = "?%s" % parse.urlencode(new_qparams)
+        else:
+            query_string = ""
+        url = '/software_configs%s' % query_string
+        return self._list(url, "software_configs")
+
     def get(self, config_id):
         """Get the details for a specific software config.