mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-16 10:00:39 +00:00
91 lines
3.0 KiB
Python
91 lines
3.0 KiB
Python
|
"""
|
||
|
|
A module that implements tooling to enable easy warnings about deprecations.
|
||
|
|
"""
|
||
|
|
from __future__ import absolute_import
|
||
|
|
|
||
|
|
import logging
|
||
|
|
import warnings
|
||
|
|
|
||
|
|
from pip._vendor.packaging.version import parse
|
||
|
|
|
||
|
|
from pip import __version__ as current_version
|
||
|
|
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
|
||
|
|
|
||
|
|
if MYPY_CHECK_RUNNING:
|
||
|
|
from typing import Any, Optional # noqa: F401
|
||
|
|
|
||
|
|
|
||
|
|
class PipDeprecationWarning(Warning):
|
||
|
|
pass
|
||
|
|
|
||
|
|
|
||
|
|
_original_showwarning = None # type: Any
|
||
|
|
|
||
|
|
|
||
|
|
# Warnings <-> Logging Integration
|
||
|
|
def _showwarning(message, category, filename, lineno, file=None, line=None):
|
||
|
|
if file is not None:
|
||
|
|
if _original_showwarning is not None:
|
||
|
|
_original_showwarning(
|
||
|
|
message, category, filename, lineno, file, line,
|
||
|
|
)
|
||
|
|
elif issubclass(category, PipDeprecationWarning):
|
||
|
|
# We use a specially named logger which will handle all of the
|
||
|
|
# deprecation messages for pip.
|
||
|
|
logger = logging.getLogger("pip._internal.deprecations")
|
||
|
|
logger.warning(message)
|
||
|
|
else:
|
||
|
|
_original_showwarning(
|
||
|
|
message, category, filename, lineno, file, line,
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def install_warning_logger():
|
||
|
|
# type: () -> None
|
||
|
|
# Enable our Deprecation Warnings
|
||
|
|
warnings.simplefilter("default", PipDeprecationWarning, append=True)
|
||
|
|
|
||
|
|
global _original_showwarning
|
||
|
|
|
||
|
|
if _original_showwarning is None:
|
||
|
|
_original_showwarning = warnings.showwarning
|
||
|
|
warnings.showwarning = _showwarning
|
||
|
|
|
||
|
|
|
||
|
|
def deprecated(reason, replacement, gone_in, issue=None):
|
||
|
|
# type: (str, Optional[str], Optional[str], Optional[int]) -> None
|
||
|
|
"""Helper to deprecate existing functionality.
|
||
|
|
|
||
|
|
reason:
|
||
|
|
Textual reason shown to the user about why this functionality has
|
||
|
|
been deprecated.
|
||
|
|
replacement:
|
||
|
|
Textual suggestion shown to the user about what alternative
|
||
|
|
functionality they can use.
|
||
|
|
gone_in:
|
||
|
|
The version of pip does this functionality should get removed in.
|
||
|
|
Raises errors if pip's current version is greater than or equal to
|
||
|
|
this.
|
||
|
|
issue:
|
||
|
|
Issue number on the tracker that would serve as a useful place for
|
||
|
|
users to find related discussion and provide feedback.
|
||
|
|
|
||
|
|
Always pass replacement, gone_in and issue as keyword arguments for clarity
|
||
|
|
at the call site.
|
||
|
|
"""
|
||
|
|
|
||
|
|
# Construct a nice message.
|
||
|
|
# This is purposely eagerly formatted as we want it to appear as if someone
|
||
|
|
# typed this entire message out.
|
||
|
|
message = "DEPRECATION: " + reason
|
||
|
|
if replacement is not None:
|
||
|
|
message += " A possible replacement is {}.".format(replacement)
|
||
|
|
if issue is not None:
|
||
|
|
url = "https://github.com/pypa/pip/issues/" + str(issue)
|
||
|
|
message += " You can find discussion regarding this at {}.".format(url)
|
||
|
|
|
||
|
|
# Raise as an error if it has to be removed.
|
||
|
|
if gone_in is not None and parse(current_version) >= parse(gone_in):
|
||
|
|
raise PipDeprecationWarning(message)
|
||
|
|
warnings.warn(message, category=PipDeprecationWarning, stacklevel=2)
|