Mercurial > hg
annotate mercurial/txnutil.py @ 49649:df5d3b0d6472
typing: add missing signature for mercurial.cext.parsers.parse_index2()
Flagged by pytype 2022.11.18 when the cext stubs are made visible to it. There
are very likely other signatures that are missing, but this is enough to keep it
happy for now.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Wed, 23 Nov 2022 15:50:20 -0500 |
parents | 2e726c934fcd |
children | f4733654f144 |
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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) |