rust-status: add function for sequential traversal of the working directory
This change also introduces helper structs to make things clearer.
Differential Revision: https://phab.mercurial-scm.org/D7928
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# no unicode literals
from __future__ import absolute_import, division, print_function
import sys
from . import compat
"""Module to deal with filename encoding on the local system, as returned by
Watchman."""
if compat.PYTHON3:
default_local_errors = "surrogateescape"
def get_local_encoding():
if sys.platform == "win32":
# Watchman always returns UTF-8 encoded strings on Windows.
return "utf-8"
# On the Python 3 versions we support, sys.getfilesystemencoding never
# returns None.
return sys.getfilesystemencoding()
else:
# Python 2 doesn't support surrogateescape, so use 'strict' by
# default. Users can register a custom surrogateescape error handler and use
# that if they so desire.
default_local_errors = "strict"
def get_local_encoding():
if sys.platform == "win32":
# Watchman always returns UTF-8 encoded strings on Windows.
return "utf-8"
fsencoding = sys.getfilesystemencoding()
if fsencoding is None:
# This is very unlikely to happen, but if it does, just use UTF-8
fsencoding = "utf-8"
return fsencoding
def encode_local(s):
return s.encode(get_local_encoding(), default_local_errors)
def decode_local(bs):
return bs.decode(get_local_encoding(), default_local_errors)