mirror of
https://github.com/SickGear/SickGear.git
synced 2024-12-01 08:53:37 +00:00
143 lines
4.3 KiB
Python
143 lines
4.3 KiB
Python
# util/deprecations.py
|
|
# Copyright (C) 2005-2014 the SQLAlchemy authors and contributors <see AUTHORS file>
|
|
#
|
|
# This module is part of SQLAlchemy and is released under
|
|
# the MIT License: http://www.opensource.org/licenses/mit-license.php
|
|
|
|
"""Helpers related to deprecation of functions, methods, classes, other
|
|
functionality."""
|
|
|
|
from .. import exc
|
|
import warnings
|
|
import re
|
|
from .langhelpers import decorator
|
|
|
|
|
|
def warn_deprecated(msg, stacklevel=3):
|
|
warnings.warn(msg, exc.SADeprecationWarning, stacklevel=stacklevel)
|
|
|
|
|
|
def warn_pending_deprecation(msg, stacklevel=3):
|
|
warnings.warn(msg, exc.SAPendingDeprecationWarning, stacklevel=stacklevel)
|
|
|
|
|
|
def deprecated(version, message=None, add_deprecation_to_docstring=True):
|
|
"""Decorates a function and issues a deprecation warning on use.
|
|
|
|
:param message:
|
|
If provided, issue message in the warning. A sensible default
|
|
is used if not provided.
|
|
|
|
:param add_deprecation_to_docstring:
|
|
Default True. If False, the wrapped function's __doc__ is left
|
|
as-is. If True, the 'message' is prepended to the docs if
|
|
provided, or sensible default if message is omitted.
|
|
|
|
"""
|
|
|
|
if add_deprecation_to_docstring:
|
|
header = ".. deprecated:: %s %s" % \
|
|
(version, (message or ''))
|
|
else:
|
|
header = None
|
|
|
|
if message is None:
|
|
message = "Call to deprecated function %(func)s"
|
|
|
|
def decorate(fn):
|
|
return _decorate_with_warning(
|
|
fn, exc.SADeprecationWarning,
|
|
message % dict(func=fn.__name__), header)
|
|
return decorate
|
|
|
|
|
|
def pending_deprecation(version, message=None,
|
|
add_deprecation_to_docstring=True):
|
|
"""Decorates a function and issues a pending deprecation warning on use.
|
|
|
|
:param version:
|
|
An approximate future version at which point the pending deprecation
|
|
will become deprecated. Not used in messaging.
|
|
|
|
:param message:
|
|
If provided, issue message in the warning. A sensible default
|
|
is used if not provided.
|
|
|
|
:param add_deprecation_to_docstring:
|
|
Default True. If False, the wrapped function's __doc__ is left
|
|
as-is. If True, the 'message' is prepended to the docs if
|
|
provided, or sensible default if message is omitted.
|
|
"""
|
|
|
|
if add_deprecation_to_docstring:
|
|
header = ".. deprecated:: %s (pending) %s" % \
|
|
(version, (message or ''))
|
|
else:
|
|
header = None
|
|
|
|
if message is None:
|
|
message = "Call to deprecated function %(func)s"
|
|
|
|
def decorate(fn):
|
|
return _decorate_with_warning(
|
|
fn, exc.SAPendingDeprecationWarning,
|
|
message % dict(func=fn.__name__), header)
|
|
return decorate
|
|
|
|
|
|
def _sanitize_restructured_text(text):
|
|
def repl(m):
|
|
type_, name = m.group(1, 2)
|
|
if type_ in ("func", "meth"):
|
|
name += "()"
|
|
return name
|
|
return re.sub(r'\:(\w+)\:`~?\.?(.+?)`', repl, text)
|
|
|
|
|
|
def _decorate_with_warning(func, wtype, message, docstring_header=None):
|
|
"""Wrap a function with a warnings.warn and augmented docstring."""
|
|
|
|
message = _sanitize_restructured_text(message)
|
|
|
|
@decorator
|
|
def warned(fn, *args, **kwargs):
|
|
warnings.warn(wtype(message), stacklevel=3)
|
|
return fn(*args, **kwargs)
|
|
|
|
doc = func.__doc__ is not None and func.__doc__ or ''
|
|
if docstring_header is not None:
|
|
docstring_header %= dict(func=func.__name__)
|
|
|
|
doc = inject_docstring_text(doc, docstring_header, 1)
|
|
|
|
decorated = warned(func)
|
|
decorated.__doc__ = doc
|
|
return decorated
|
|
|
|
import textwrap
|
|
|
|
def _dedent_docstring(text):
|
|
split_text = text.split("\n", 1)
|
|
if len(split_text) == 1:
|
|
return text
|
|
else:
|
|
firstline, remaining = split_text
|
|
if not firstline.startswith(" "):
|
|
return firstline + "\n" + textwrap.dedent(remaining)
|
|
else:
|
|
return textwrap.dedent(text)
|
|
|
|
def inject_docstring_text(doctext, injecttext, pos):
|
|
doctext = _dedent_docstring(doctext or "")
|
|
lines = doctext.split('\n')
|
|
injectlines = textwrap.dedent(injecttext).split("\n")
|
|
if injectlines[0]:
|
|
injectlines.insert(0, "")
|
|
|
|
blanks = [num for num, line in enumerate(lines) if not line.strip()]
|
|
blanks.insert(0, 0)
|
|
|
|
inject_pos = blanks[min(pos, len(blanks) - 1)]
|
|
|
|
lines = lines[0:inject_pos] + injectlines + lines[inject_pos:]
|
|
return "\n".join(lines)
|