+ # Update resources
+ if not charmstore_entity:
+ charmstore_entity = await charmstore.entity(charm_url,
+ channel=channel)
+ store_resources = charmstore_entity['Meta']['resources']
+
+ request_data = [client.Entity(self.tag)]
+ response = await resources_facade.ListResources(request_data)
+ existing_resources = {
+ resource.name: resource
+ for resource in response.results[0].resources
+ }
+
+ resources_to_update = [
+ resource for resource in store_resources
+ if resource['Name'] not in existing_resources or
+ existing_resources[resource['Name']].origin != 'upload'
+ ]
+
+ if resources_to_update:
+ request_data = [
+ client.CharmResource(
+ description=resource.get('Description'),
+ fingerprint=resource['Fingerprint'],
+ name=resource['Name'],
+ path=resource['Path'],
+ revision=resource['Revision'],
+ size=resource['Size'],
+ type_=resource['Type'],
+ origin='store',
+ ) for resource in resources_to_update
+ ]
+ response = await resources_facade.AddPendingResources(
+ self.tag,
+ charm_url,
+ request_data
+ )
+ pending_ids = response.pending_ids
+ resource_ids = {
+ resource['Name']: id
+ for resource, id in zip(resources_to_update, pending_ids)
+ }
+ else:
+ resource_ids = None
+
+ # Update application