view mercurial/node.py @ 29134:8d5584d8345b

graphmod: partial edge styling

Allow for a style to only apply to the last N lines (for positive N) or
everything but the first N lines (for negative N) of the section along the
current node. This allows for more subtle grandparent styling.

So from the default:

  $ hg log -G ...
  o    Lorem ipsum dolor sit
  :\   amet, consectetur
  : :  adipiscing elit, sed
  : :  do eiusmod tempor
  : :
  o :  incididunt ut labore
  | :  et dolore magna
  | :  aliqua. Ut enim ad
  | :  minim veniam, quis
  |/
  o  nostrud exercitation
  :  ullamco laboris nisi
  :  ut aliquip ex ea
  :  commodo consequat.
  :
  o  Duis aute irure dolor
  |  in reprehenderit in
  ~  voluptate velit esse
     cillum dolore eu

to

  $ hg log -G --config "experimental.graphstyle.grandparent=2." ...
  o    Lorem ipsum dolor sit
  |\   amet, consectetur
  | |  adipiscing elit, sed
  . .  do eiusmod tempor
  . .
  o |  incididunt ut labore
  | |  et dolore magna
  | |  aliqua. Ut enim ad
  | |  minim veniam, quis
  |/
  o  nostrud exercitation
  |  ullamco laboris nisi
  |  ut aliquip ex ea
  .  commodo consequat.
  .
  o  Duis aute irure dolor
  |  in reprehenderit in
  ~  voluptate velit esse
     cillum dolore eu

or

  $ hg log -G --config "experimental.graphstyle.grandparent=1:" ...
  o    Lorem ipsum dolor sit
  |\   amet, consectetur
  | |  adipiscing elit, sed
  | |  do eiusmod tempor
  : :
  o |  incididunt ut labore
  | |  et dolore magna
  | |  aliqua. Ut enim ad
  | |  minim veniam, quis
  |/
  o  nostrud exercitation
  |  ullamco laboris nisi
  |  ut aliquip ex ea
  |  commodo consequat.
  :
  o  Duis aute irure dolor
  |  in reprehenderit in
  ~  voluptate velit esse
     cillum dolore eu

or

  $ hg log -G --config "experimental.graphstyle.grandparent=-2!" ...
  o    Lorem ipsum dolor sit
  |\   amet, consectetur
  ! !  adipiscing elit, sed
  ! !  do eiusmod tempor
  ! !
  o |  incididunt ut labore
  | |  et dolore magna
  | |  aliqua. Ut enim ad
  | |  minim veniam, quis
  |/
  o  nostrud exercitation
  |  ullamco laboris nisi
  !  ut aliquip ex ea
  !  commodo consequat.
  !
  o  Duis aute irure dolor
  |  in reprehenderit in
  ~  voluptate velit esse
     cillum dolore eu

# 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.

from __future__ import absolute_import

import binascii

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

nullrev = -1
nullid = b"\0" * 20
nullhex = hex(nullid)

# pseudo identifiers for working directory
# (they are experimental, so don't add too many dependencies on them)
wdirrev = 0x7fffffff
wdirid = b"\xff" * 20

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