mercurial/node.py
author Matt Mackall <mpm@selenic.com>
Fri, 06 May 2016 17:53:06 -0500
branchstable
changeset 29089 222b8170d69e
parent 28585 a3f3fdac8433
child 30360 0298a07f64d9
permissions -rw-r--r--
progress: stop excessive clearing (issue4801) The progress bar was being cleared on every write(), regardless of whether it was currently displayed. This could foul up the display of any writes that didn't include a linebreak. In particular, the win32 mode of the color extension was turning single prompt string writes into two writes, and the resulting clear/write/clear/write pattern was making the prompt invisible. We fix this by insisting that we have shown a progress bar and haven't just cleared it (setting lastprint to 0). Conveniently, the test suite already had instances of duplicate clears.. that are now cleared up.
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# node.py - basic nodeid manipulation for mercurial
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#
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# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import binascii
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# This ugly style has a noticeable effect in manifest parsing
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hex = binascii.hexlify
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bin = binascii.unhexlify
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nullrev = -1
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nullid = b"\0" * 20
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nullhex = hex(nullid)
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# pseudo identifiers for working directory
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# (they are experimental, so don't add too many dependencies on them)
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wdirrev = 0x7fffffff
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wdirid = b"\xff" * 20
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def short(node):
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    return hex(node[:6])