mercurial/httprangereader.py
author bos@serpentine.internal.keyresearch.com
Thu, 01 Sep 2005 09:08:21 -0700
changeset 1191 77a0c7528c2f
parent 372 4b0f562c61f4
child 1559 59b3639df0a9
permissions -rw-r--r--
Revert changeset 120aa5fc7ced1bf765b4f025f5a3a138cd87f49e. I inadvertantly used "hg import" on a message I saved, expecting it to do the right thing, but instead it made the commit look like I authored it, and filled the description with the email header. Changeset 737f9b90c571b3991f7e35dc846e7ef38a475cfe contains a guard against "hg import" doing this again.

# 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()