def sync_members(self, group_name, members, dry_run=False):
"""Add or remove users from the specified group as necessary so that
the group contains ``members`` (a list or uwnetids). When
``dry_run`` is True, log the necessary actions but don't
modify the group. The group is created if it does not already
exist.
"""
desired_members = set(members)
try:
current_members = set(self.get_members(group_name))
except MissingResourceError:
self.reset()
current_members = set()
log.warning('creating group {}'.format(group_name))
if not dry_run:
self.create_group(group_name)
log.info('{} current members'.format(len(current_members)))
log.debug('current members: {}'.format(current_members))
to_add, to_delete = reconcile(current_members, desired_members)
if to_add:
log.info('[+] {}: {}'.format(group_name, ','.join(to_add)))
if not dry_run:
self.add_members(group_name, sorted(to_add))
if to_delete:
log.info('[-] {}: {}'.format(group_name, ','.join(to_delete)))
if not dry_run:
self.delete_members(group_name, sorted(to_delete))
def test05(self):
to_add, to_remove = reconcile(current={'b', 'd'},
desired={'a', 'b', 'c'})
self.assertSetEqual(to_add, {'a', 'c'})
self.assertSetEqual(to_remove, {'d'})
def test01(self):
to_add, to_remove = reconcile(current=set(), desired=set())
self.assertSetEqual(to_add, set())
self.assertSetEqual(to_remove, set())