old_contents: # (c) 2012, 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/>.
  
  class Group(object):
      ''' a group of ansible hosts '''
  
      __slots__ = [ 'name', 'hosts', 'vars', 'child_groups', 'parent_groups', 'depth' ]
  
      def __init__(self, name=None):
  
          self.depth = 0
          self.name = name
          self.hosts = []
          self.vars = {}
          self.child_groups = []
          self.parent_groups = []
          if self.name is None:
              raise Exception("group name is required")
  
      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)
              group.depth = max([self.depth+1, group.depth])
              group.parent_groups.append(self)
  
      def add_host(self, host):
  
          self.hosts.append(host)
          host.add_group(self)
  
      def set_variable(self, key, value):
  
          self.vars[key] = value
  
      def get_hosts(self):
  
          hosts = []
          for kid in self.child_groups:
              kid_hosts = kid.get_hosts()
              for kk in kid_hosts:
                 if kk not in hosts:
                     hosts.append(kk)
          for mine in self.hosts:
              if mine not in hosts:
                  hosts.append(mine)
          return hosts
  
      def get_variables(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()
  
  
new_contents: # (c) 2012, 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/>.
  
  class Group(object):
      ''' a group of ansible hosts '''
  
      __slots__ = [ 'name', 'hosts', 'vars', 'child_groups', 'parent_groups', 'depth' ]
  
      def __init__(self, name=None):
  
          self.depth = 0
          self.name = name
          self.hosts = []
          self.vars = {}
          self.child_groups = []
          self.parent_groups = []
          if self.name is None:
              raise Exception("group name is required")
  
      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)
              group.depth = max([self.depth+1, group.depth])
              group.parent_groups.append(self)
  
      def add_host(self, host):
  
          self.hosts.append(host)
          host.add_group(self)
  
      def set_variable(self, key, value):
  
          self.vars[key] = value
  
      def get_hosts(self):
  
          hosts = []
          for kid in self.child_groups:
              kid_hosts = kid.get_hosts()
              for kk in kid_hosts:
                  if kk not in hosts:
                      hosts.append(kk)
          for mine in self.hosts:
              if mine not in hosts:
                  hosts.append(mine)
          return hosts
  
      def get_variables(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()
  
  
subject: Fix indentation depth.