view hg @ 44650:5f9c917e3b50

phabricator: teach `getoldnodedrevmap()` to handle folded reviews The tricky part here is reasoning through all of the possible predecessor scenarios. In the typical case of submitting a folded range and then resubmitting it (also folded), filtering the list of commits for the diff stored on Phabricator through the local predecessor list for each single node will result in the typical 1:1 mapping to the old node. There are edge cases like using `hg fold` within the range prior to resubmitting, that will result in mapping to multiple old nodes. In that case, the first direct predecessor is needed for the base of the diff, and the last direct predecessor is needed for the head of the diff in order to make sure that the entire range is included in the diff content. And none of this matters for commits in the middle of the range, as they are never used. Fortunately the only crucial thing here is the `drev` number for each node. For these complicated cases where there are multiple old nodes, simply ignore them all. This will cause `createdifferentialrevision()` to generate a new diff (within the same Differential), and avoids complicating the code. Differential Revision: https://phab.mercurial-scm.org/D8311
author Matt Harbison <matt_harbison@yahoo.com>
date Mon, 16 Mar 2020 13:36:12 -0400
parents 99e231afc29c
children c102b704edb5
line wrap: on
line source

#!/usr/bin/env python
#
# mercurial - scalable distributed SCM
#
# 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

import os
import sys

libdir = '@LIBDIR@'

if libdir != '@' 'LIBDIR' '@':
    if not os.path.isabs(libdir):
        libdir = os.path.join(
            os.path.dirname(os.path.realpath(__file__)), libdir
        )
        libdir = os.path.abspath(libdir)
    sys.path.insert(0, libdir)

from hgdemandimport import tracing

with tracing.log('hg script'):
    # enable importing on demand to reduce startup time
    try:
        if sys.version_info[0] < 3 or sys.version_info >= (3, 6):
            import hgdemandimport

            hgdemandimport.enable()
    except ImportError:
        sys.stderr.write(
            "abort: couldn't find mercurial libraries in [%s]\n"
            % ' '.join(sys.path)
        )
        sys.stderr.write("(check your install and PYTHONPATH)\n")
        sys.exit(-1)

    from mercurial import dispatch

    dispatch.run()