windows: prevent bytes from being passed to registry APIs
There was a TortoiseHg bug report in this area[1], and from inspection, it looks
like passing `b""` as `valname` would fail to convert to unicode. The
underlying API allows both `""` and `NULL` to return the default value for the
key.
[1] https://foss.heptapod.net/mercurial/tortoisehg/thg/-/issues/5803
from __future__ import absolute_import, division, print_function
__all__ = ["set_run_validators", "get_run_validators"]
_run_validators = True
def set_run_validators(run):
"""
Set whether or not validators are run. By default, they are run.
"""
if not isinstance(run, bool):
raise TypeError("'run' must be bool.")
global _run_validators
_run_validators = run
def get_run_validators():
"""
Return whether or not validators are run.
"""
return _run_validators