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104 lines (79 loc) · 2.2 KB
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# -*- coding: utf-8 -*-
# config.py
# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under
# the BSD License: https://opensource.org/license/bsd-3-clause/
"""utilities to help provide compatibility with python 3"""
# flake8: noqa
import locale
import os
import sys
from gitdb.utils.encoding import (
force_bytes, # @UnusedImport
force_text, # @UnusedImport
)
# typing --------------------------------------------------------------------
from typing import (
Any,
AnyStr,
Dict,
IO,
Optional,
Tuple,
Type,
Union,
overload,
)
# ---------------------------------------------------------------------------
is_win: bool = os.name == "nt"
is_posix = os.name == "posix"
is_darwin = os.name == "darwin"
defenc = sys.getfilesystemencoding()
@overload
def safe_decode(s: None) -> None:
...
@overload
def safe_decode(s: AnyStr) -> str:
...
def safe_decode(s: Union[AnyStr, None]) -> Optional[str]:
"""Safely decodes a binary string to unicode"""
if isinstance(s, str):
return s
elif isinstance(s, bytes):
return s.decode(defenc, "surrogateescape")
elif s is None:
return None
else:
raise TypeError("Expected bytes or text, but got %r" % (s,))
@overload
def safe_encode(s: None) -> None:
...
@overload
def safe_encode(s: AnyStr) -> bytes:
...
def safe_encode(s: Optional[AnyStr]) -> Optional[bytes]:
"""Safely encodes a binary string to unicode"""
if isinstance(s, str):
return s.encode(defenc)
elif isinstance(s, bytes):
return s
elif s is None:
return None
else:
raise TypeError("Expected bytes or text, but got %r" % (s,))
@overload
def win_encode(s: None) -> None:
...
@overload
def win_encode(s: AnyStr) -> bytes:
...
def win_encode(s: Optional[AnyStr]) -> Optional[bytes]:
"""Encode unicodes for process arguments on Windows."""
if isinstance(s, str):
return s.encode(locale.getpreferredencoding(False))
elif isinstance(s, bytes):
return s
elif s is not None:
raise TypeError("Expected bytes or text, but got %r" % (s,))
return None