Mercurial > hg > mercurial-crew-with-dirclash

annotate mercurial/changegroup.py @ 2568:52ce0d6bc375

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HTTPS: fix python2.3, persistent connections, don't explode if SSL is not available The urllib2 differences between python 2.3 and 2.4 are hidden by using keepalive.py, which also gives us support for persistent connections. Support for HTTPS is enabled only if there's a HTTPSHandler class in urllib2. It's not possible to have separate classes as handlers for HTTP and HTTPS: to support persistent HTTPS connections, we need a class that inherits from both keepalive.HTTPHandler and urllib2.HTTPSHandler. If we try to pass (an instance of) this class and (an instance of) the httphandler class to urllib2.build_opener, this function ends up getting confused, since both classes are subclasses of the HTTPHandler default handler, and raises an exception.
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
date Thu, 06 Jul 2006 03:14:55 -0300
parents fe1689273f84
children 025f68f22ae2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1981
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1 """
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2 changegroup.py - Mercurial changegroup manipulation functions
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4 Copyright 2006 Matt Mackall <mpm@selenic.com>
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5
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6 This software may be used and distributed according to the terms
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7 of the GNU General Public License, incorporated herein by reference.
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8 """
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802e8a029d99 Added missing gettext import to changegroup.py.
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9 from i18n import gettext as _
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10 from demandload import *
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fe1689273f84 use demandload more.
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11 demandload(globals(), "struct util")
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13 def getchunk(source):
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14 """get a chunk from a changegroup"""
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15 d = source.read(4)
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16 if not d:
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17 return ""
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18 l = struct.unpack(">l", d)[0]
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19 if l <= 4:
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20 return ""
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21 d = source.read(l - 4)
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22 if len(d) < l - 4:
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23 raise util.Abort(_("premature EOF reading chunk"
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24 " (got %d bytes, expected %d)")
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25 % (len(d), l - 4))
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26 return d
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27
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28 def chunkiter(source):
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29 """iterate through the chunks in source"""
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30 while 1:
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31 c = getchunk(source)
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32 if not c:
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33 break
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34 yield c
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35
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36 def genchunk(data):
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37 """build a changegroup chunk"""
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38 header = struct.pack(">l", len(data)+ 4)
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39 return "%s%s" % (header, data)
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40
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41 def closechunk():
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42 return struct.pack(">l", 0)
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43