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Instantiate inventory plugins only once for efficiency reasons.

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This commit is contained in:
Michael DeHaan 2013-04-20 09:59:40 -04:00
parent 817b0cdc80
commit 5a8dff5bce
1 changed files with 7 additions and 2 deletions
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9
lib/ansible/inventory/__init__.py
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@ -37,7 +37,8 @@ class Inventory(object):
"""
__slots__ = [ 'host_list', 'groups', '_restriction', '_also_restriction', '_subset',
'parser', '_vars_per_host', '_vars_per_group', '_hosts_cache', '_groups_list']
'parser', '_vars_per_host', '_vars_per_group', '_hosts_cache', '_groups_list',
'_vars_plugins']
def __init__(self, host_list=C.DEFAULT_HOST_LIST):
@ -97,6 +98,9 @@ class Inventory(object):
else:
raise errors.AnsibleError("Unable to find an inventory file, specify one with -i ?")
self._vars_plugins = [ x for x in utils.plugins.vars_loader.all(self) ]
def _match(self, str, pattern_str):
if pattern_str.startswith('~'):
return re.search(pattern_str[1:], str)
@ -277,7 +281,8 @@ class Inventory(object):
raise errors.AnsibleError("host not found: %s" % hostname)
vars = {}
for updated in map(lambda x: x.run(host), utils.plugins.vars_loader.all(self)):
vars_results = [ plugin.run(host) for plugin in self._vars_plugins ]
for updated in vars_results:
if updated is not None:
vars.update(updated)