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merge: disallow merge abort in case of an unfinished operation (issue6160)...
merge: disallow merge abort in case of an unfinished operation (issue6160) This patch disallows `hg merge --abort` in case an operation of higher precedence i.e unshelve, rebase, histedit are in unfinished states. This is done so as to avoid partial abort of these operations in case merge abort is called at an interrupted step. The patch adds a `cmdutil.getunfinishedstate` function which checks for operations under progress and returns a `statecheck` object for it. Differential Revision: https://phab.mercurial-scm.org/D6607

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converters.py
24 lines | 531 B | text/x-python | PythonLexer
"""
Commonly useful converters.
"""
from __future__ import absolute_import, division, print_function
def optional(converter):
"""
A converter that allows an attribute to be optional. An optional attribute
is one which can be set to ``None``.
:param callable converter: the converter that is used for non-``None``
values.
.. versionadded:: 17.1.0
"""
def optional_converter(val):
if val is None:
return None
return converter(val)
return optional_converter