view contrib/dumprevlog @ 35562:6580cf751418

debug: add a 'debugdownload' command

This command resolve and fetch and URL through the Mercurial logic. Mercurial
logic add various headers (including authentication) while resolving an URL so
the commands helps with building the same request Mercurial would be doing.

A new test file is created because we'll add more logic regarding Mercurial
download logic and it will grow to a reasonable size.

#!/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-")