Fix --limit option in image list sub-command

Client site fix of --limit option.

This bugfix makes client "image list" command working again with
"--limit" option. This option was ignored and even if user specified it,
still list of all available images was returned.

Story: 2004314
Change-Id: I30a78d65a644c9b7d23706a6637ce77bca2c2386
Depends-On: https://review.openstack.org/#/c/634776/

openstackclient/image/v2/image.py

@@ -630,6 +630,9 @@ class ListImage(command.Lister):
 
         # List of image data received
         data = []
+        limit = None
+        if 'limit' in kwargs:
+            limit = kwargs['limit']
         if 'marker' in kwargs:
             data = image_client.api.image_list(**kwargs)
         else:
@@ -642,6 +645,8 @@ class ListImage(command.Lister):
                 data.extend(page)
                 # Set the marker to the id of the last item we received
                 marker = page[-1]['id']
+                if limit:
+                    break
 
         if parsed_args.property:
             for attr, value in parsed_args.property.items():

openstackclient/tests/unit/image/v2/test_image.py

@@ -744,21 +744,22 @@ class TestImageList(TestImage):
         self.assertEqual(self.datalist, tuple(data))
 
     def test_image_list_limit_option(self):
+        ret_limit = 1
         arglist = [
-            '--limit', str(1),
+            '--limit', str(ret_limit),
         ]
         verifylist = [
-            ('limit', 1),
+            ('limit', ret_limit),
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
         columns, data = self.cmd.take_action(parsed_args)
         self.api_mock.image_list.assert_called_with(
-            limit=1, marker=self._image.id
+            limit=ret_limit, marker=None
         )
 
         self.assertEqual(self.columns, columns)
-        self.assertEqual(len(self.datalist), len(tuple(data)))
+        self.assertEqual(ret_limit, len(tuple(data)))
 
     @mock.patch('osc_lib.utils.find_resource')
     def test_image_list_marker_option(self, fr_mock):

releasenotes/notes/bug-27882-402ced7ffe930058.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    The ``--limit`` option of the ``image list`` command was previously ignored.
+    [Bug `https://storyboard.openstack.org/#!/story/2004314`]