33d0721c21
- Classic charms: sync charm-helpers. - Classic ceph based charms: also sync charms.ceph - Reactive charms: trigger a rebuild Change-Id: If2862938c3cd8b868c8b541016a8d9fe5ea861b0
100 lines
3.5 KiB
Python
100 lines
3.5 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.
|
|
|
|
# Bootstrap charm-helpers, installing its dependencies if necessary using
|
|
# only standard libraries.
|
|
from __future__ import print_function
|
|
from __future__ import absolute_import
|
|
|
|
import functools
|
|
import inspect
|
|
import subprocess
|
|
import sys
|
|
|
|
try:
|
|
import six # NOQA:F401
|
|
except ImportError:
|
|
if sys.version_info.major == 2:
|
|
subprocess.check_call(['apt-get', 'install', '-y', 'python-six'])
|
|
else:
|
|
subprocess.check_call(['apt-get', 'install', '-y', 'python3-six'])
|
|
import six # NOQA:F401
|
|
|
|
try:
|
|
import yaml # NOQA:F401
|
|
except ImportError:
|
|
if sys.version_info.major == 2:
|
|
subprocess.check_call(['apt-get', 'install', '-y', 'python-yaml'])
|
|
else:
|
|
subprocess.check_call(['apt-get', 'install', '-y', 'python3-yaml'])
|
|
import yaml # NOQA:F401
|
|
|
|
|
|
# Holds a list of mapping of mangled function names that have been deprecated
|
|
# using the @deprecate decorator below. This is so that the warning is only
|
|
# printed once for each usage of the function.
|
|
__deprecated_functions = {}
|
|
|
|
|
|
def deprecate(warning, date=None, log=None):
|
|
"""Add a deprecation warning the first time the function is used.
|
|
|
|
The date which is a string in semi-ISO8660 format indicates the year-month
|
|
that the function is officially going to be removed.
|
|
|
|
usage:
|
|
|
|
@deprecate('use core/fetch/add_source() instead', '2017-04')
|
|
def contributed_add_source_thing(...):
|
|
...
|
|
|
|
And it then prints to the log ONCE that the function is deprecated.
|
|
The reason for passing the logging function (log) is so that hookenv.log
|
|
can be used for a charm if needed.
|
|
|
|
:param warning: String to indicate what is to be used instead.
|
|
:param date: Optional string in YYYY-MM format to indicate when the
|
|
function will definitely (probably) be removed.
|
|
:param log: The log function to call in order to log. If None, logs to
|
|
stdout
|
|
"""
|
|
def wrap(f):
|
|
|
|
@functools.wraps(f)
|
|
def wrapped_f(*args, **kwargs):
|
|
try:
|
|
module = inspect.getmodule(f)
|
|
file = inspect.getsourcefile(f)
|
|
lines = inspect.getsourcelines(f)
|
|
f_name = "{}-{}-{}..{}-{}".format(
|
|
module.__name__, file, lines[0], lines[-1], f.__name__)
|
|
except (IOError, TypeError):
|
|
# assume it was local, so just use the name of the function
|
|
f_name = f.__name__
|
|
if f_name not in __deprecated_functions:
|
|
__deprecated_functions[f_name] = True
|
|
s = "DEPRECATION WARNING: Function {} is being removed".format(
|
|
f.__name__)
|
|
if date:
|
|
s = "{} on/around {}".format(s, date)
|
|
if warning:
|
|
s = "{} : {}".format(s, warning)
|
|
if log:
|
|
log(s)
|
|
else:
|
|
print(s)
|
|
return f(*args, **kwargs)
|
|
return wrapped_f
|
|
return wrap
|