contrib/dumprevlog

test-convert-cvsnt-mergepoints: ignore differences between CVS 1.11 and 1.12.

- factor out cvsci function (similar to other test-convert-cvs* scripts)
- add filterpath function (also similar to other scripts)
- generally munge the output of CVS
- add lots of output to make it easier to follow when things go wrong

This doesn't make the test pass reliably under CVS 1.11; it just makes
it behave the same as under CVS 1.12, i.e. sometimes it passes and
sometimes it fails.  Failure is more frequent with faster hardware.

#!/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.set_binary(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-"