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159fe07e6d
Reviewed By: quark-zju Differential Revision: D42183497 fbshipit-source-id: 069fe3dd1a319dd428ed0ebc1e5a6ee8c0e228cc
52 lines
1.2 KiB
Python
52 lines
1.2 KiB
Python
# Portions Copyright (c) Meta Platforms, Inc. and affiliates.
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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.
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# node.py - basic nodeid manipulation for mercurial
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#
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# Copyright 2005, 2006 Olivia Mackall <olivia@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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bhex = binascii.hexlify
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bbin = binascii.unhexlify
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def bin(node):
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try:
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return bbin(node)
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except binascii.Error as e:
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raise TypeError(e)
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hex = bytes.hex
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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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# Phony node value to stand-in for new files in some uses of
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# manifests.
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newnodeid = b"!" * 20
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addednodeid = (b"0" * 15) + b"added"
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modifiednodeid = (b"0" * 12) + b"modified"
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wdirnodes = {newnodeid, addednodeid, modifiednodeid}
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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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wdirhex = hex(wdirid)
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def short(node):
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return hex(node[:6])
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