Mercurial > hg
view mercurial/rewriteutil.py @ 35485:1721ce06100a
hgweb: display fate of obsolete changesets
Operations that obsolete changesets store enough metadata to explain what
happened after the fact. One way to get that metadata is showsuccsandmarkers
function, which returns a list of successors of a particular changeset and
appropriate obsolescence markers.
Templates have a set of experimental functions that have names starting with
obsfate. This patch uses some of these functions to interpret output of
succsandmarkers() and produce human-friendly messages that describe what
happened to an obsolete changeset, e.g. "pruned" or "rewritten as
6:3de5eca88c00".
In commonentry(), succsandmarkers property is made callable so it's only
executed on demand; this saves time when changeset is not obsolete, and also in
e.g. /shortlog view, where there are a lot of changesets, but we don't need to
show each and every one in detail.
In spartan theme, succsandmarkers is used instead of the simple "obsolete:
yes", in other themes a new line is added to /rev page.
author | Anton Shestakov <av6@dwimlabs.net> |
---|---|
date | Tue, 21 Nov 2017 17:03:41 +0800 |
parents | 490df753894d |
children | 8c6329fa6038 |
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# 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='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 = _("cannot %s null changeset") % (action) hint = _("no changeset checked out") raise error.Abort(msg, hint=hint) publicrevs = repo.revs('%ld and public()', revs) if len(repo[None].parents()) > 1: raise error.Abort(_("cannot %s while merging") % action) if publicrevs: msg = _("cannot %s public changesets") % (action) hint = _("see 'hg help phases' for details") raise error.Abort(msg, hint=hint) newunstable = disallowednewunstable(repo, revs) if newunstable: raise error.Abort(_("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("(%ld::) - %ld", revs, revs)