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Merge pull request #12002 from amenonsen/9437-rebase

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Make get_group run in O(n*log(n)) instead of O(n^2) by using a cache (#9437 rebase)
This commit is contained in:
Brian Coca 2015-08-19 10:22:22 -04:00
commit fd361c7f5d
1 changed files with 9 additions and 4 deletions
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11
lib/ansible/inventory/__init__.py
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@ -67,6 +67,7 @@ class Inventory(object):
self._groups_list = {}
self._pattern_cache = {}
self._vars_plugins = []
self._groups_cache = {}
# to be set by calling set_playbook_basedir by playbook code
self._playbook_basedir = None
@ -394,6 +395,7 @@ class Inventory(object):
if a.name not in groups:
groups[a.name] = [h.name for h in a.get_hosts()]
self._groups_list = groups
self._groups_cache = {}
return self._groups_list
def get_groups(self):
@ -422,10 +424,11 @@ class Inventory(object):
return matching_host
def get_group(self, groupname):
if not self._groups_cache:
for group in self.groups:
if group.name == groupname:
return group
return None
self._groups_cache[group.name] = group
return self._groups_cache.get(groupname)
def get_group_variables(self, groupname, update_cached=False, vault_password=None):
if groupname not in self._vars_per_group or update_cached:
@ -499,6 +502,7 @@ class Inventory(object):
if group.name not in self.groups_list():
self.groups.append(group)
self._groups_list = None # invalidate internal cache
self._groups_cache = {}
else:
raise AnsibleError("group already in inventory: %s" % group.name)
@ -668,6 +672,7 @@ class Inventory(object):
self._vars_per_host = {}
self._vars_per_group = {}
self._groups_list = {}
self._groups_cache = {}
self.groups = []
self.parse_inventory(self.host_list)