mercurial/node.py
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
Wed, 26 Sep 2007 01:58:45 -0300
changeset 5338 f87685355c9c
parent 4995 e45fc5d03798
permissions -rw-r--r--
revlog: fix revlogio.packentry corner case We want to store version information about the revlog in the first entry of its index. The code in packentry was using some heuristics to detect whether this was the first entry, but these heuristics could fail in some cases (e.g. rev 0 was empty; rev 1 descends directly from the nullid and is stored as a delta). We now give the revision number to packentry to avoid heuristics.
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"""
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node.py - basic nodeid manipulation for mercurial
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Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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This software may be used and distributed according to the terms
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of the GNU General Public License, incorporated herein by reference.
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"""
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import binascii
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nullrev = -1
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nullid = "\0" * 20
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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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def short(node):
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    return hex(node[:6])