merge: pass commitinfo to applyupdates() and get it stored in mergestate
This patch passes the commitinfo calulcated in manifestmerge() to applyupdates()
so that it can be read there and stored in mergestate. On commit, we can read
mergestate for such information and act accordingly.
This patch also makes ACTION_GET_OTHER_AND_STORE not required anymore. Next
patch will remove the messy code surrounding it.
Differential Revision: https://phab.mercurial-scm.org/D8743
# rewriteutil.py - utility functions for rewriting changesets
#
# Copyright 2017 Octobus <contact@octobus.net>
#
# 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,
node,
obsolete,
revset,
)
def precheck(repo, revs, action=b'rewrite'):
"""check if revs can be rewritten
action is used to control the error message.
Make sure this function is called after taking the lock.
"""
if node.nullrev in revs:
msg = _(b"cannot %s null changeset") % action
hint = _(b"no changeset checked out")
raise error.Abort(msg, hint=hint)
if len(repo[None].parents()) > 1:
raise error.Abort(_(b"cannot %s while merging") % action)
publicrevs = repo.revs(b'%ld and public()', revs)
if publicrevs:
msg = _(b"cannot %s public changesets") % action
hint = _(b"see 'hg help phases' for details")
raise error.Abort(msg, hint=hint)
newunstable = disallowednewunstable(repo, revs)
if newunstable:
raise error.Abort(_(b"cannot %s changeset with children") % action)
def disallowednewunstable(repo, revs):
"""Checks whether editing the revs will create new unstable changesets and
are we allowed to create them.
To allow new unstable changesets, set the config:
`experimental.evolution.allowunstable=True`
"""
allowunstable = obsolete.isenabled(repo, obsolete.allowunstableopt)
if allowunstable:
return revset.baseset()
return repo.revs(b"(%ld::) - %ld", revs, revs)
def skip_empty_successor(ui, command):
empty_successor = ui.config(b'rewrite', b'empty-successor')
if empty_successor == b'skip':
return True
elif empty_successor == b'keep':
return False
else:
raise error.ConfigError(
_(
b"%s doesn't know how to handle config "
b"rewrite.empty-successor=%s (only 'skip' and 'keep' are "
b"supported)"
)
% (command, empty_successor)
)