Mercurial > hg
annotate mercurial/txnutil.py @ 37838:3fe1c9263024
log: consume --stat/patch options at constructor of changesetprinter
The variable name, self.diffopts, was confusing. Let's split it to two
booleans.
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sun, 29 Apr 2018 15:52:01 +0900 |
parents | 206532700213 |
children | 2372284d9457 |
rev | line source |
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31050
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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 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 ( |
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13 encoding, |
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14 ) |
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15 |
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16 def mayhavepending(root): |
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17 '''return whether 'root' may have pending changes, which are |
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18 visible to this process. |
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19 ''' |
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20 return root == encoding.environ.get('HG_PENDING') |
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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('%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) |