sidedatacopies: only store an entry if it has values
This will make for a shorter storage and help use to write faster code in simple
case. This change already provided a speed boost for copy tracing.
For example here is combined time of running copies tracing on a 6989 pairs of
revision on the pypy repos:
before: 771s
after: 631s - 18%
This also has a very positive impact on changelog size. For example here are the
number for the `00changelog.d` file of pypy.
before:
30449712 Bytes
after:
24973718 Bytes - 18%
This give an overall quite acceptable overhead for storing copies into the
changelog:
filelog-only:
23370586
sidedata:
24973718 Bytes + 7%
Differential Revision: https://phab.mercurial-scm.org/D7068
# mergeutil.py - help for merge processing in mercurial
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
from .i18n import _
from . import error
def checkunresolved(ms):
if list(ms.unresolved()):
raise error.Abort(
_(b"unresolved merge conflicts (see 'hg help resolve')")
)
if ms.mdstate() != b's' or list(ms.driverresolved()):
raise error.Abort(
_(b'driver-resolved merge conflicts'),
hint=_(b'run "hg resolve --all" to resolve'),
)