Mercurial > hg
annotate mercurial/txnutil.py @ 49710:30ac702a7488
path: pass `path` to `peer` in `hg summary`
We directly use the `path` object to build the `peer` object.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 01 Dec 2022 02:11:21 +0100 |
parents | 2e726c934fcd |
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rev | line source |
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txnutil: factor out the logic to read file in according to HG_PENDING
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
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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 |
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9 from . import encoding |
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10 |
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11 |
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12 def mayhavepending(root): |
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13 """return whether 'root' may have pending changes, which are |
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14 visible to this process. |
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15 """ |
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16 return root == encoding.environ.get(b'HG_PENDING') |
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17 |
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18 |
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19 def trypending(root, vfs, filename, **kwargs): |
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20 """Open file to be read according to HG_PENDING environment variable |
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21 |
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22 This opens '.pending' of specified 'filename' only when HG_PENDING |
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23 is equal to 'root'. |
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24 |
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25 This returns '(fp, is_pending_opened)' tuple. |
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26 """ |
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27 if mayhavepending(root): |
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28 try: |
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29 return (vfs(b'%s.pending' % filename, **kwargs), True) |
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30 except FileNotFoundError: |
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31 pass |
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32 return (vfs(filename, **kwargs), False) |