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 |
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10 from .i18n import _ |
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11 |
10 from . import ( |
12 from . import ( |
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13 error, |
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14 node, |
11 obsolete, |
15 obsolete, |
12 revset, |
16 revset, |
13 ) |
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) |
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 |