contrib/dumprevlog

osx: wire up genosxversion script

The only version strings that are changed are the ones baked into the
.pkg - hg's self-reported version string doesn't change, so users will
still see our mostly-pip-compatible version strings.

For reference, the part of our versioning setup that's not PEP440
compatible is the RC releases - those should be .rc0 insted of
-rc. It's too late to change that for the 4.3 cycle, so I'll worry
about fixing that during the 4.4 cycle.

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

from __future__ import absolute_import, print_function

import sys
from mercurial import (
    node,
    revlog,
    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-")