view mercurial/node.py @ 14671:35c2cc322ba8

scmutil: switch match users to supplying contexts

The most appropriate context is not always clearly defined. The obvious cases:

For working directory commands, we use None
For commands (eg annotate) with single revs, we use that revision

The less obvious cases:

For commands (eg status, diff) with a pair of revs, we use the second revision
For commands that take a range (like log), we use None

# node.py - basic nodeid manipulation for mercurial
#
# Copyright 2005, 2006 Matt Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

import binascii

nullrev = -1
nullid = "\0" * 20

# This ugly style has a noticeable effect in manifest parsing
hex = binascii.hexlify
bin = binascii.unhexlify

def short(node):
    return hex(node[:6])