view tests/failfilemerge.py @ 51009:ffb393dd5999

perf: ensure all readlog's reading is done within a `reading` context

We are about to enforce this at the revlog level, so we update the perf code in
advance.

# extension to emulate interrupting filemerge._filemerge


from mercurial import (
    error,
    extensions,
    filemerge,
)


def failfilemerge(*args, **kwargs):
    raise error.Abort(b"^C")


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