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authorThomas Herve <therve@redhat.com>2017-10-03 16:10:29 +0200
committerThomas Herve <therve@redhat.com>2017-10-05 10:56:10 +0200
commit2a8ce0d0656f47331a164163f9e3b302de4d3c88 (patch)
treef0e76c0572ba1ca7e11feacb2553db641519c55b /heatclient/common
parentbfa77b57c682005ec4c5fd28e02042d2130ed703 (diff)
downloadpython-heatclient-2a8ce0d0656f47331a164163f9e3b302de4d3c88.tar.gz
Don't override sections in deep_update
When you comment all the elements in a YAML mapping, you end up with None instead of an empty mapping, which can have bad side effect when handling multiple environemnents. Let's handle that by ignoring the latest None value. Change-Id: I77ffabeb8d4cd2886ef4f41351e42ebe487b5d4b
Diffstat (limited to 'heatclient/common')
-rw-r--r--heatclient/common/template_utils.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/heatclient/common/template_utils.py b/heatclient/common/template_utils.py
index 9e9c85b..b38710b 100644
--- a/heatclient/common/template_utils.py
+++ b/heatclient/common/template_utils.py
@@ -198,6 +198,9 @@ def deep_update(old, new):
if isinstance(v, collections.Mapping):
r = deep_update(old.get(k, {}), v)
old[k] = r
+ elif v is None and isinstance(old.get(k), collections.Mapping):
+ # Don't override empty data, to work around yaml syntax issue
+ pass
else:
old[k] = new[k]
return old