Merge "Add an optional parameter --append"

glanceclient/v2/metadefs.py

@@ -490,9 +490,8 @@ class TagController(object):
         """Create the list of tags.
 
         :param namespace: Name of a namespace to which the Tags belong.
-        :param kwargs: list of tags.
+        :param kwargs: list of tags, optional parameter append.
         """
-
         tag_names = kwargs.pop('tags', [])
         md_tag_list = []
 
@@ -502,11 +501,15 @@ class TagController(object):
             except (warlock.InvalidOperation) as e:
                 raise TypeError(encodeutils.exception_to_unicode(e))
         tags = {'tags': md_tag_list}
+        headers = {}
 
         url = '/v2/metadefs/namespaces/%(namespace)s/tags' % {
-            'namespace': namespace}
+              'namespace': namespace}
 
-        resp, body = self.http_client.post(url, data=tags)
+        append = kwargs.pop('append', False)
+        if append:
+            headers['X-Openstack-Append'] = True
+        resp, body = self.http_client.post(url, headers=headers, data=tags)
         body.pop('self', None)
         for tag in body['tags']:
             yield self.model(tag), resp

glanceclient/v2/shell.py

@@ -1396,10 +1396,12 @@ def do_md_tag_create(gc, args):
 @utils.arg('--delim', metavar='<DELIM>', required=False,
            help=_('The delimiter used to separate the names'
                   ' (if none is provided then the default is a comma).'))
+@utils.arg('--append', default=False, action='store_true', required=False,
+           help=_('Append the new tags to the existing ones instead of'
+                  'overwriting them'))
 def do_md_tag_create_multiple(gc, args):
     """Create new metadata definitions tags inside a namespace."""
     delim = args.delim or ','
-
     tags = []
     names_list = args.names.split(delim)
     for name in names_list:
@@ -1411,7 +1413,7 @@ def do_md_tag_create_multiple(gc, args):
         utils.exit('Please supply at least one tag name. For example: '
                    '--names Tag1')
 
-    fields = {'tags': tags}
+    fields = {'tags': tags, 'append': args.append}
     new_tags = gc.metadefs_tag.create_multiple(args.namespace, **fields)
     columns = ['name']
     column_settings = {