Mercurial > hg
annotate mercurial/help/multirevs.txt @ 23324:69f86b937035
cmdserver: protect pipe server streams against corruption caused by direct io
Because pipe-mode server uses stdio as IPC channel, other modules should not
touch stdio directly and use ui instead. However, this strategy is brittle
because several Python functions read and write stdio implicitly.
print 'hello' # should use ui.write()
# => ch = 'h', size = 1701604463 'ello', data = '\n'
This patch adds protection for such mistakes. Both stdio files and low-level
file descriptors are redirected to /dev/null while command server uses them.
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sat, 15 Nov 2014 13:50:43 +0900 |
parents | f91e5630ce7e |
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1 When Mercurial accepts more than one revision, they may be specified |
cad36e496640
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Martin Geisler <mg@lazybytes.net>
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2 individually, or provided as a topologically continuous range, |
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3 separated by the ":" character. |
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4 |
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5 The syntax of range notation is [BEGIN]:[END], where BEGIN and END are |
cad36e496640
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Martin Geisler <mg@lazybytes.net>
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6 revision identifiers. Both BEGIN and END are optional. If BEGIN is not |
cad36e496640
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Martin Geisler <mg@lazybytes.net>
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7 specified, it defaults to revision number 0. If END is not specified, |
cad36e496640
help: un-indent help topics
Martin Geisler <mg@lazybytes.net>
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8 it defaults to the tip. The range ":" thus means "all revisions". |
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9 |
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10 If BEGIN is greater than END, revisions are treated in reverse order. |
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11 |
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Martin Geisler <mg@lazybytes.net>
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12 A range acts as a closed interval. This means that a range of 3:5 |
cad36e496640
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Martin Geisler <mg@lazybytes.net>
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13 gives 3, 4 and 5. Similarly, a range of 9:6 gives 9, 8, 7, and 6. |