bridge: T4579: cleanup interface dict (remove empty keys)

(cherry picked from commit 54227591a0eb3c7aa8c896c6ec8b1826ce070ddf)

1 files changed, 9 insertions, 1 deletions

diff --git a/src/conf_mode/interfaces-bridge.py b/src/conf_mode/interfaces-bridge.py
index 9ad39e080..f548a0e75 100755
--- a/src/conf_mode/interfaces-bridge.py
+++ b/src/conf_mode/interfaces-bridge.py
@@ -60,7 +60,7 @@ def get_config(config=None):
         else:
             bridge.update({'member': {'interface_remove': tmp }})
 
-    if dict_search('member.interface', bridge):
+    if dict_search('member.interface', bridge) != None:
         # XXX: T2665: we need a copy of the dict keys for iteration, else we will get:
         # RuntimeError: dictionary changed size during iteration
         for interface in list(bridge['member']['interface']):
@@ -102,6 +102,14 @@ def get_config(config=None):
             if 'enable_vlan' in bridge and tmp:
                 bridge['member']['interface'][interface].update({'has_vlan' : ''})
 
+    # delete empty dictionary keys - no need to run code paths if nothing is there to do
+    if 'member' in bridge:
+        if 'interface' in bridge['member'] and len(bridge['member']['interface']) == 0:
+            del bridge['member']['interface']
+
+        if len(bridge['member']) == 0:
+            del bridge['member']
+
     return bridge
 
 def verify(bridge):