view tests/failfilemerge.py @ 45693:64a9423450ef

automation: support running against Python 3.9

We just added CPython 3.9.0 to the automation environment. Let's
support actions targeting it.

One side-effect of this change is that we'll produce Windows wheels
for Python 3.9 by default. This is desirable.

Differential Revision: https://phab.mercurial-scm.org/D9189

# extension to emulate interrupting filemerge._filemerge

from __future__ import absolute_import

from mercurial import (
    error,
    extensions,
    filemerge,
)


def failfilemerge(
    filemergefn, premerge, repo, wctx, mynode, orig, fcd, fco, fca, labels=None
):
    raise error.Abort(b"^C")
    return filemergefn(premerge, repo, mynode, orig, fcd, fco, fca, labels)


def extsetup(ui):
    extensions.wrapfunction(filemerge, '_filemerge', failfilemerge)