Mercurial > hg
annotate mercurial/rewriteutil.py @ 43679:7cf332318f62
encoding: make getcols() raise exception explicitly
This helps pytype.
File "mercurial/encoding.py", line 329, in getcols: bad option in return
type [bad-return-type]
Expected: bytes
Actually returned: None
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sat, 16 Nov 2019 15:43:21 +0900 |
parents | 687b865b95ad |
children | a391d0710f22 |
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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 |
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20 def precheck(repo, revs, action=b'rewrite'): |
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21 """check if revs can be rewritten |
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22 action is used to control the error message. |
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23 |
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24 Make sure this function is called after taking the lock. |
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25 """ |
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26 if node.nullrev in revs: |
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27 msg = _(b"cannot %s null changeset") % action |
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28 hint = _(b"no changeset checked out") |
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29 raise error.Abort(msg, hint=hint) |
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30 |
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31 if len(repo[None].parents()) > 1: |
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32 raise error.Abort(_(b"cannot %s while merging") % action) |
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33 |
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34 publicrevs = repo.revs(b'%ld and public()', revs) |
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35 if publicrevs: |
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36 msg = _(b"cannot %s public changesets") % action |
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37 hint = _(b"see 'hg help phases' for details") |
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38 raise error.Abort(msg, hint=hint) |
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39 |
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40 newunstable = disallowednewunstable(repo, revs) |
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41 if newunstable: |
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42 raise error.Abort(_(b"cannot %s changeset with children") % action) |
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43 |
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44 |
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45 def disallowednewunstable(repo, revs): |
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46 """Checks whether editing the revs will create new unstable changesets and |
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47 are we allowed to create them. |
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48 |
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49 To allow new unstable changesets, set the config: |
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50 `experimental.evolution.allowunstable=True` |
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51 """ |
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52 allowunstable = obsolete.isenabled(repo, obsolete.allowunstableopt) |
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53 if allowunstable: |
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54 return revset.baseset() |
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55 return repo.revs(b"(%ld::) - %ld", revs, revs) |