contrib/undumprevlog
author Martin Geisler <mg@lazybytes.net>
Tue, 07 Jul 2009 23:54:30 +0200
changeset 9051 f8e25885d975
parent 6466 9c426da6b03b
child 13970 d13913355390
permissions -rw-r--r--
commands: wrapped docstrings at 78 characters We have always had a left margin of 4 characters -- probably just because that's how docstrings for top-level functions turn out by default, but it also looks nice in the built-in help. The docstrings were wrapped at 70 characters, which is the default for Emacs. However, this gives a right margin of 10 characters in a standard 80 character terminal. I've now wrapped the relevant docstrings at 78 characters, effectively killing the right margin. The asymmetric margins looked a bit odd and some of the text looked cramped with a right margin, so Dirkjan and I felt that it was best to remove it entirely. The two character gap was kept to have some space between the border of the terminal -- it will also make diffs involving the docstrings fit in a 80 character line.

#!/usr/bin/env python
# Undump a dump from dumprevlog
# $ hg init
# $ undumprevlog < repo.dump

import sys
from mercurial import revlog, node, util, transaction

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

opener = util.opener('.', False)
tr = transaction.transaction(sys.stderr.write, opener, "undump.journal")
while 1:
    l = sys.stdin.readline()
    if not l:
        break
    if l.startswith("file:"):
        f = l[6:-1]
        r = revlog.revlog(opener, f)
        print f
    elif l.startswith("node:"):
        n = node.bin(l[6:-1])
    elif l.startswith("linkrev:"):
        lr = int(l[9:-1])
    elif l.startswith("parents:"):
        p = l[9:-1].split()
        p1 = node.bin(p[0])
        p2 = node.bin(p[1])
    elif l.startswith("length:"):
        length = int(l[8:-1])
        sys.stdin.readline() # start marker
        d = sys.stdin.read(length)
        sys.stdin.readline() # end marker
        r.addrevision(d, tr, lr, p1, p2)

tr.close()