Alex Kavanagh 9c12812735 Switch the charm to support py3
Some major changes:
* the charm has been rebased (from a Python perspective) to be rooted in
  the charm directory.  This is a single root.
* Imports have been changed so that the don't add lots of imports to the
  namespace of the module doing the import.
* The code that used to run at module import time has been made lazy
  such that it only has to run if the relevant functions are called.
  This includes restart_on_change parameters, the harden function and
  the parameters to the guard_map.  Appropriate changes will be
  submitted to charm-helpers.
* Several tests had to be re-written as (incorrect) mocking meant that
  text fixtures didn't actually match what the code was doing.  Thus,
  the tests were meaningless.
* This has had a net positive impact on the unit tests wrt to importing
  modules and mocking.

Change-Id: Id07d9d1caaa9b29453a63c2e49ba831071e9457f
2018-10-18 15:43:03 +01:00

38 lines
1.4 KiB
Python

# Copyright 2014-2015 Canonical Limited.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from . import cmdline
from charmhelpers.core import unitdata
@cmdline.subcommand_builder('unitdata', description="Store and retrieve data")
def unitdata_cmd(subparser):
nested = subparser.add_subparsers()
get_cmd = nested.add_parser('get', help='Retrieve data')
get_cmd.add_argument('key', help='Key to retrieve the value of')
get_cmd.set_defaults(action='get', value=None)
set_cmd = nested.add_parser('set', help='Store data')
set_cmd.add_argument('key', help='Key to set')
set_cmd.add_argument('value', help='Value to store')
set_cmd.set_defaults(action='set')
def _unitdata_cmd(action, key, value):
if action == 'get':
return unitdata.kv().get(key)
elif action == 'set':
unitdata.kv().set(key, value)
unitdata.kv().flush()
return ''
return _unitdata_cmd