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[PATCH] Using monotone-viz/git-viz with mercurial

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[PATCH] Using monotone-viz/git-viz with mercurial

From: Vincent Danjean <[e-mail]>

  monotone-viz is a small GTK+ application that visualizes monotone
ancestry graphs. Its home page is:
http://oandrieu.nerim.net/monotone-viz/
  As monotone and git are similar, the author adapted the 0.9 version to
display git ancestry graphs and call it git-viz. I cannot see any link
from the homepage, but looking in the archive of git ML, it can be found
here:
http://oandrieu.nerim.net/monotone-viz/git-viz-0.1.tar.gz

  I few days ago, I adapted it so that it works with the last versions
of git/cogito. Patches and package are available here:
http://dept-info.labri.fr/~danjean/deb.html#git-viz

  Today, I patched hgit so that it respects the output of git-diff-tree,
I added git-{diff-tree,cat-file,rev-list,rev-tree} that call hgit (2
lines scripts), and added the script 'hg-viz'.
  hg-viz create a .git directory and store the SHA1 of the tip in
.git/HEAD and then call my git-viz.
  All these modifications are in the attached patch.

  I try it in the mercurial repository. After applying the patch, you
just have to add the contrib directory in your PATH and call hg-viz.
  An example of what we can see is on my web page (probably not for a
long time) : http://dept-info.labri.fr/~danjean/temp/hg-viz.png

  Vincent

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#!/usr/bin/env python
import sys, os
from mercurial import hg

f = sys.argv[1]

r1 = hg.revlog(open, f + ".i", f + ".d")
r2 = hg.revlog(open, f + ".i2", f + ".d2")

tr = hg.transaction(open, "journal")

for i in xrange(r1.count()):
    n = r1.node(i)
    p1, p2 = r1.parents(n)
    l = r1.linkrev(n)
    t = r1.revision(n)
    n2 = r2.addrevision(t, tr, l, p1, p2)
tr.close()

os.rename(f + ".i", f + ".i.old")
os.rename(f + ".d", f + ".d.old")
os.rename(f + ".i2", f + ".i")
os.rename(f + ".d2", f + ".d")