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annotate mercurial/rewriteutil.py @ 36884:ece242db5000

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hgweb: use templater on requestcontext instance After this commit, all @webcommand function no longer use their "tmpl" argument. Instead, they use the templater attached to the requestcontext. This is the same exact object. So there should be no difference in behavior. Differential Revision: https://phab.mercurial-scm.org/D2800
author Gregory Szorc <gregory.szorc@gmail.com>
date Sat, 10 Mar 2018 20:38:28 -0800
parents 490df753894d
children 8c6329fa6038
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # rewriteutil.py - utility functions for rewriting changesets
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2 #
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3 # Copyright 2017 Octobus <contact@octobus.net>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from __future__ import absolute_import
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9
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10 from .i18n import _
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11
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12 from . import (
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13 error,
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14 node,
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15 obsolete,
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16 revset,
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17 )
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18
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19 def precheck(repo, revs, action='rewrite'):
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20 """check if revs can be rewritten
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21 action is used to control the error message.
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22
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23 Make sure this function is called after taking the lock.
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24 """
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25 if node.nullrev in revs:
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26 msg = _("cannot %s null changeset") % (action)
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27 hint = _("no changeset checked out")
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28 raise error.Abort(msg, hint=hint)
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29
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30 publicrevs = repo.revs('%ld and public()', revs)
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31 if len(repo[None].parents()) > 1:
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32 raise error.Abort(_("cannot %s while merging") % action)
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33
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34 if publicrevs:
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35 msg = _("cannot %s public changesets") % (action)
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36 hint = _("see 'hg help phases' for details")
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37 raise error.Abort(msg, hint=hint)
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38
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39 newunstable = disallowednewunstable(repo, revs)
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40 if newunstable:
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41 raise error.Abort(_("cannot %s changeset with children") % action)
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42
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43 def disallowednewunstable(repo, revs):
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44 """Checks whether editing the revs will create new unstable changesets and
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45 are we allowed to create them.
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46
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47 To allow new unstable changesets, set the config:
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48 `experimental.evolution.allowunstable=True`
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49 """
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50 allowunstable = obsolete.isenabled(repo, obsolete.allowunstableopt)
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51 if allowunstable:
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52 return revset.baseset()
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53 return repo.revs("(%ld::) - %ld", revs, revs)