view tests/failfilemerge.py @ 44710:eca82eb9d777

revset: implement a simple 'foo#generations' expression

The result of this expression is equivalent to 'foo#g[:]': all reachable
ancestors and descendants of a revset foo.

While not very useful functionality on its own, its implementation can be
tested and revset.relations dict can be easily used by extensions to add other
non-subscript relations.

Differential Revision: https://phab.mercurial-scm.org/D8394

# 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("^C")
    return filemergefn(premerge, repo, mynode, orig, fcd, fco, fca, labels)


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