annotate mercurial/httprangereader.py @ 6398:0e91ef0b52e7

Add a test for svn tags conversion
author Patrick Mezard <pmezard@gmail.com>
date Sat, 29 Mar 2008 17:15:43 +0100
parents 345bac2bc4ec
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
372
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
1 # httprangereader.py - just what it says
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
2 #
2859
345bac2bc4ec update copyrights.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2161
diff changeset
3 # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
372
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
4 #
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
5 # This software may be used and distributed according to the terms
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
6 # of the GNU General Public License, incorporated herein by reference.
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
7
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
8 import byterange, urllib2
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
9
1559
59b3639df0a9 Convert all classes to new-style classes by deriving them from object.
Eric Hopper <hopper@omnifarious.org>
parents: 372
diff changeset
10 class httprangereader(object):
372
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
11 def __init__(self, url):
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
12 self.url = url
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
13 self.pos = 0
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
14 def seek(self, pos):
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
15 self.pos = pos
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
16 def read(self, bytes=None):
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
17 opener = urllib2.build_opener(byterange.HTTPRangeHandler())
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
18 urllib2.install_opener(opener)
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
19 req = urllib2.Request(self.url)
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
20 end = ''
2138
f5046cab9e2e Fix revlog-ng interaction with old-http.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 1559
diff changeset
21 if bytes:
f5046cab9e2e Fix revlog-ng interaction with old-http.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 1559
diff changeset
22 end = self.pos + bytes - 1
372
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
23 req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
4b0f562c61f4 Move httprangereader into its own file
mpm@selenic.com
parents:
diff changeset
24 f = urllib2.urlopen(req)
2161
12e11413ca19 Fix just introduced possible old-http bug
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2138
diff changeset
25 data = f.read()
12e11413ca19 Fix just introduced possible old-http bug
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2138
diff changeset
26 if bytes:
12e11413ca19 Fix just introduced possible old-http bug
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2138
diff changeset
27 data = data[:bytes]
12e11413ca19 Fix just introduced possible old-http bug
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2138
diff changeset
28 return data