Mercurial > public > mercurial-scm > hg
comparison mercurial/rewriteutil.py @ 35243:490df753894d
rewriteutil: add a precheck function to check if revs can be rewritten
The precheck function is intended to be used before we start rewritting
changesets.
Differential Revision: https://phab.mercurial-scm.org/D1503
| author | Pulkit Goyal <7895pulkit@gmail.com> |
|---|---|
| date | Fri, 24 Nov 2017 03:44:50 +0530 |
| parents | 27d5c2d2db2b |
| children | 8c6329fa6038 |
comparison
equal
deleted
inserted
replaced
| 35242:27d5c2d2db2b | 35243:490df753894d |
|---|---|
| 5 # This software may be used and distributed according to the terms of the | 5 # This software may be used and distributed according to the terms of the |
| 6 # GNU General Public License version 2 or any later version. | 6 # GNU General Public License version 2 or any later version. |
| 7 | 7 |
| 8 from __future__ import absolute_import | 8 from __future__ import absolute_import |
| 9 | 9 |
| 10 from .i18n import _ | |
| 11 | |
| 10 from . import ( | 12 from . import ( |
| 13 error, | |
| 14 node, | |
| 11 obsolete, | 15 obsolete, |
| 12 revset, | 16 revset, |
| 13 ) | 17 ) |
| 18 | |
| 19 def precheck(repo, revs, action='rewrite'): | |
| 20 """check if revs can be rewritten | |
| 21 action is used to control the error message. | |
| 22 | |
| 23 Make sure this function is called after taking the lock. | |
| 24 """ | |
| 25 if node.nullrev in revs: | |
| 26 msg = _("cannot %s null changeset") % (action) | |
| 27 hint = _("no changeset checked out") | |
| 28 raise error.Abort(msg, hint=hint) | |
| 29 | |
| 30 publicrevs = repo.revs('%ld and public()', revs) | |
| 31 if len(repo[None].parents()) > 1: | |
| 32 raise error.Abort(_("cannot %s while merging") % action) | |
| 33 | |
| 34 if publicrevs: | |
| 35 msg = _("cannot %s public changesets") % (action) | |
| 36 hint = _("see 'hg help phases' for details") | |
| 37 raise error.Abort(msg, hint=hint) | |
| 38 | |
| 39 newunstable = disallowednewunstable(repo, revs) | |
| 40 if newunstable: | |
| 41 raise error.Abort(_("cannot %s changeset with children") % action) | |
| 14 | 42 |
| 15 def disallowednewunstable(repo, revs): | 43 def disallowednewunstable(repo, revs): |
| 16 """Checks whether editing the revs will create new unstable changesets and | 44 """Checks whether editing the revs will create new unstable changesets and |
| 17 are we allowed to create them. | 45 are we allowed to create them. |
| 18 | 46 |