view mercurial/httprangereader.py @ 2163:278f9b13c39a

SunOS fix: Replaced $PWD with `pwd` under certain conditioins $PWD isn't up to date, observed on SunOS 5.8
author Sascha Wilde <wilde@sha-bang.de>
date Sun, 30 Apr 2006 19:29:57 +0200
parents 12e11413ca19
children 345bac2bc4ec
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# 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(object):
    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 - 1
        req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
        f = urllib2.urlopen(req)
        data = f.read()
        if bytes:
            data = data[:bytes]
        return data