175 lines
4.9 KiB
Python
175 lines
4.9 KiB
Python
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
|
|
#
|
|
# This file is part of Ansible
|
|
#
|
|
# Ansible is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# Ansible is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
|
|
from __future__ import (absolute_import, division, print_function)
|
|
__metaclass__ = type
|
|
|
|
from ansible.errors import AnsibleError
|
|
|
|
class Group:
|
|
''' a group of ansible hosts '''
|
|
|
|
#__slots__ = [ 'name', 'hosts', 'vars', 'child_groups', 'parent_groups', 'depth', '_hosts_cache' ]
|
|
|
|
def __init__(self, name=None):
|
|
|
|
self.depth = 0
|
|
self.name = name
|
|
self.hosts = []
|
|
self.vars = {}
|
|
self.child_groups = []
|
|
self.parent_groups = []
|
|
self._hosts_cache = None
|
|
self.priority = 1
|
|
|
|
#self.clear_hosts_cache()
|
|
#if self.name is None:
|
|
# raise Exception("group name is required")
|
|
|
|
def __repr__(self):
|
|
return self.get_name()
|
|
|
|
def __getstate__(self):
|
|
return self.serialize()
|
|
|
|
def __setstate__(self, data):
|
|
return self.deserialize(data)
|
|
|
|
def serialize(self):
|
|
parent_groups = []
|
|
for parent in self.parent_groups:
|
|
parent_groups.append(parent.serialize())
|
|
|
|
result = dict(
|
|
name=self.name,
|
|
vars=self.vars.copy(),
|
|
parent_groups=parent_groups,
|
|
depth=self.depth,
|
|
)
|
|
|
|
return result
|
|
|
|
def deserialize(self, data):
|
|
self.__init__()
|
|
self.name = data.get('name')
|
|
self.vars = data.get('vars', dict())
|
|
self.depth = data.get('depth', 0)
|
|
|
|
parent_groups = data.get('parent_groups', [])
|
|
for parent_data in parent_groups:
|
|
g = Group()
|
|
g.deserialize(parent_data)
|
|
self.parent_groups.append(g)
|
|
|
|
def get_name(self):
|
|
return self.name
|
|
|
|
def add_child_group(self, group):
|
|
|
|
if self == group:
|
|
raise Exception("can't add group to itself")
|
|
|
|
# don't add if it's already there
|
|
if not group in self.child_groups:
|
|
self.child_groups.append(group)
|
|
|
|
# update the depth of the child
|
|
group.depth = max([self.depth+1, group.depth])
|
|
|
|
# update the depth of the grandchildren
|
|
group._check_children_depth()
|
|
|
|
# now add self to child's parent_groups list, but only if there
|
|
# isn't already a group with the same name
|
|
if not self.name in [g.name for g in group.parent_groups]:
|
|
group.parent_groups.append(self)
|
|
|
|
self.clear_hosts_cache()
|
|
|
|
def _check_children_depth(self):
|
|
|
|
try:
|
|
for group in self.child_groups:
|
|
group.depth = max([self.depth+1, group.depth])
|
|
group._check_children_depth()
|
|
except RuntimeError:
|
|
raise AnsibleError("The group named '%s' has a recursive dependency loop." % self.name)
|
|
|
|
def add_host(self, host):
|
|
|
|
self.hosts.append(host)
|
|
host.add_group(self)
|
|
self.clear_hosts_cache()
|
|
|
|
def set_variable(self, key, value):
|
|
|
|
self.vars[key] = value
|
|
|
|
def clear_hosts_cache(self):
|
|
|
|
self._hosts_cache = None
|
|
for g in self.parent_groups:
|
|
g.clear_hosts_cache()
|
|
|
|
def get_hosts(self):
|
|
|
|
if self._hosts_cache is None:
|
|
self._hosts_cache = self._get_hosts()
|
|
|
|
return self._hosts_cache
|
|
|
|
def _get_hosts(self):
|
|
|
|
hosts = []
|
|
seen = {}
|
|
for kid in self.child_groups:
|
|
kid_hosts = kid.get_hosts()
|
|
for kk in kid_hosts:
|
|
if kk not in seen:
|
|
seen[kk] = 1
|
|
if self.name == 'all' and kk.implicit:
|
|
continue
|
|
hosts.append(kk)
|
|
for mine in self.hosts:
|
|
if mine not in seen:
|
|
seen[mine] = 1
|
|
if self.name == 'all' and mine.implicit:
|
|
continue
|
|
hosts.append(mine)
|
|
return hosts
|
|
|
|
def get_vars(self):
|
|
return self.vars.copy()
|
|
|
|
def _get_ancestors(self):
|
|
|
|
results = {}
|
|
for g in self.parent_groups:
|
|
results[g.name] = g
|
|
results.update(g._get_ancestors())
|
|
return results
|
|
|
|
def get_ancestors(self):
|
|
|
|
return self._get_ancestors().values()
|
|
|
|
def set_priority(self, priority):
|
|
try:
|
|
self.priority = int(priority)
|
|
except TypeError:
|
|
#FIXME: warn about invalid priority
|
|
pass
|
|
|