Mercurial > hg
annotate mercurial/txnutil.py @ 45670:a8fb29b05f92
salvaged: properly deal with salvaged file during copy tracing
When salvaged files are encountered, the removal have been reverted and we
should keep the rename information from the other side.
The conditional was starting to be quite hairy, so we spell it out in multiple
elif case for readability.
This fixes the associated test cases introduced a while back. The changeset centric copy tracing is now (known) bug free.
Differential Revision: https://phab.mercurial-scm.org/D9130
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 16 Sep 2020 21:00:02 +0200 |
parents | 687b865b95ad |
children | 89a2afe31e82 |
rev | line source |
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1 # txnutil.py - transaction related utilities |
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2 # |
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3 # Copyright FUJIWARA Katsunori <foozy@lares.dti.ne.jp> and others |
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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 import errno |
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11 |
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12 from . import encoding |
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13 |
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14 |
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15 def mayhavepending(root): |
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16 '''return whether 'root' may have pending changes, which are |
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17 visible to this process. |
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18 ''' |
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19 return root == encoding.environ.get(b'HG_PENDING') |
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20 |
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21 |
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22 def trypending(root, vfs, filename, **kwargs): |
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23 '''Open file to be read according to HG_PENDING environment variable |
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24 |
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25 This opens '.pending' of specified 'filename' only when HG_PENDING |
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26 is equal to 'root'. |
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27 |
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28 This returns '(fp, is_pending_opened)' tuple. |
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29 ''' |
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30 if mayhavepending(root): |
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31 try: |
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32 return (vfs(b'%s.pending' % filename, **kwargs), True) |
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33 except IOError as inst: |
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34 if inst.errno != errno.ENOENT: |
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35 raise |
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36 return (vfs(filename, **kwargs), False) |