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Implement maintaining object relationship graph

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For each object maintain parent-child relationship graph, i.e. list of
parent objects ('parents' property) and list of children objects ('children'
property).

Objects without parent(s) are objects specified in init manifest.
Objects without children are object of types that do not reuse other types.
This commit is contained in:
Darko Poljak 2021-03-21 18:10:06 +01:00
commit 7a0b697f4c
3 changed files with 43 additions and 0 deletions
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19
cdist/emulator.py
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@ -106,6 +106,7 @@ class Emulator:
self.save_stdin()
self.record_requirements()
self.record_auto_requirements()
self.record_parent_child_relationships()
self.log.trace("Finished %s %s" % (
self.cdist_object.path, self.parameters))
@ -420,3 +421,21 @@ class Emulator:
self.log.debug("Recording autorequirement %s for %s",
current_object.name, parent.name)
parent.autorequire.append(current_object.name)
def record_parent_child_relationships(self):
# __object_name is the name of the object whose type manifest is
# currently executed
__object_name = self.env.get('__object_name', None)
if __object_name:
# The object whose type manifest is currently run
parent = self.cdist_object.object_from_name(__object_name)
# The object currently being defined
current_object = self.cdist_object
if current_object.name not in parent.children:
self.log.debug("Recording child %s for %s",
current_object.name, parent.name)
parent.children.append(current_object.name)
if parent.name not in current_object.parents:
self.log.debug("Recording parent %s for %s",
parent.name, current_object.name)
current_object.parents.append(parent.name)