Make the appendfile class inline-data index friendly
The appendfile class needs a few changes to make it work with interleaved
index files. It needs to support the tell() method, opening in a+ mode,
and it needs to delay the checkinlinesize call until after the
append file is written.
Given that open(file, "a+") doesn't always seek to the end of the file,
this adds seek operations to appendfile that understand whence args
# 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
req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
f = urllib2.urlopen(req)
return f.read()