mercurial/httprangereader.py
author Matt Mackall <mpm@selenic.com>
Fri, 08 Jul 2005 00:07:54 -0800
changeset 651 08b65d66f3e7
parent 372 4b0f562c61f4
child 1559 59b3639df0a9
permissions -rw-r--r--
Fix an odd revlog bug -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Fix an odd revlog bug If revlog had a cached -empty- revision, as opposed to no cached version, it could get confused. This cropped up in verify on a particular repo. manifest hash: 90ccf122087f6bbcb4322cb9d9bb8124610ba886 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQFCzjRaywK+sNU5EO8RAgVEAKCv3WBJt1rBOX0UlTDXFPygPIru+gCfTZxJ CEz1lYny1gkQ+haGY26QdBs= =C/K5 -----END PGP SIGNATURE-----

# httprangereader.py - just what it says
#
# Copyright 2005 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.

import byterange, urllib2

class httprangereader:
    def __init__(self, url):
        self.url = url
        self.pos = 0
    def seek(self, pos):
        self.pos = pos
    def read(self, bytes=None):
        opener = urllib2.build_opener(byterange.HTTPRangeHandler())
        urllib2.install_opener(opener)
        req = urllib2.Request(self.url)
        end = ''
        if bytes: end = self.pos + bytes
        req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
        f = urllib2.urlopen(req)
        return f.read()