view tests/crashgetbundler.py @ 42478:561cd02c58ff

cat: don't prefetch files unless the output requires it

It's a waste to cache lfs blobs when cat'ing the raw data at best, but a hassle
debugging when the blob is missing.  I'm not sure if there are other commands
that have '{data}' for output, and if there's a general way to prefetch on that
keyword.

It's interesting that the verbose output seems to leak into the JSON output, but
that seems like an existing bug.

from __future__ import absolute_import

from mercurial.i18n import _
from mercurial import (
        changegroup,
        error,
        extensions
    )

def abort(orig, *args, **kwargs):
    raise error.Abort(_('this is an exercise'))

def uisetup(ui):
    extensions.wrapfunction(changegroup, 'getbundler', abort)