Store transitive inheritance information in glare

Before this patch only local inheritance information was stored in the
'inherits' field in glare. This means, that requesting all the
packages, that inherit from class X would only yield immediate
relatives, rather than all.
This patch adds transitive inheritance information to the same field.

Change-Id: I5096a2dd105dd70ff42b35eebbd850a9b66c9274
Closes-Bug: #1585419

muranoclient/v1/artifact_packages.py

@@ -12,6 +12,8 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import collections
+
 from glanceclient import exc as glance_exc
 import six
 import yaml
@@ -54,6 +56,23 @@ class ArtifactRepo(object):
 
         inherits = self._get_local_inheritance(package.classes)
 
+        # check for global inheritance
+        ancestor_queue = collections.deque(inherits.keys())
+        while ancestor_queue:
+            ancestor_name = ancestor_queue.popleft()
+            child_classes = inherits[ancestor_name]
+
+            ancestors = self.list(class_definitions=ancestor_name)
+            for ancestor in ancestors:
+                # check if ancestor inherits anything
+                ancestor_inherits = \
+                    ancestor.type_specific_properties.get('inherits', {})
+                for name, value in ancestor_inherits.items():
+                    # check if this is the class we actually inherit
+                    if ancestor_name in value:
+                        ancestor_queue.append(name)
+                        inherits[name] = child_classes
+
         package_draft['inherits'] = inherits
 
         keywords = self._keywords_from_display_name(

releasenotes/notes/global-inherits-fix-6da007ec44a774f2.yaml

@@ -0,0 +1,4 @@
+---
+fixes:
+  - Importing a package into glare, now fills 'inherited' field with full
+    inheritance info (previously it only contained immediate parent classes).