contrib/dumprevlog

log: add a status template

It appears that git users like having a --name-status option on `git
log`. There exist at least three questions on StackOverflow on how to
do this for hg. The desired output is not difficult to build with
templates, and since this is something that svn users might also want,
it seems desirable to have this as another standard template.

This mimics the output of `hg status` and adds it to the log output.
It also follows status's convention of displaying copies with a -C
option. Brief example:

    $ hg log -T status -C
    changeset:   24883:7d1b9b7ac9fd
    bookmark:    statustemplate
    tag:         tip
    parent:      24864:c560d8c68791
    user:        Jordi Gutiérrez Hermoso <[e-mail]>
    date:        Wed Apr 22 14:05:04 2015 -0400
    summary:     log: add a status template
    files:
    A added
    A copied
      original
    M modified
    R removed

Of course, everything is also coloured correctly, and there are tests
to prove it.

#!/usr/bin/env python
# Dump revlogs as raw data stream
# $ find .hg/store/ -name "*.i" | xargs dumprevlog > repo.dump

import sys
from mercurial import revlog, node, util

for fp in (sys.stdin, sys.stdout, sys.stderr):
    util.setbinary(fp)

for f in sys.argv[1:]:
    binopen = lambda fn: open(fn, 'rb')
    r = revlog.revlog(binopen, f)
    print "file:", f
    for i in r:
        n = r.node(i)
        p = r.parents(n)
        d = r.revision(n)
        print "node:", node.hex(n)
        print "linkrev:", r.linkrev(i)
        print "parents:", node.hex(p[0]), node.hex(p[1])
        print "length:", len(d)
        print "-start-"
        print d
        print "-end-"