author | Thomas Arendsen Hein <thomas@intevation.de> |
Thu, 01 Jun 2006 18:36:32 +0200 | |
changeset 2361 | d3adb454c5a9 |
parent 1997 | 802e8a029d99 |
child 2470 | fe1689273f84 |
permissions | -rw-r--r-- |
1981
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make incoming work via ssh (issue139); move chunk code into separate module.
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parents:
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""" |
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changegroup.py - Mercurial changegroup manipulation functions |
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Copyright 2006 Matt Mackall <mpm@selenic.com> |
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This software may be used and distributed according to the terms |
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of the GNU General Public License, incorporated herein by reference. |
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""" |
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import struct |
1997
802e8a029d99
Added missing gettext import to changegroup.py.
Thomas Arendsen Hein <thomas@intevation.de>
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from i18n import gettext as _ |
1981
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from demandload import * |
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demandload(globals(), "util") |
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def getchunk(source): |
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"""get a chunk from a changegroup""" |
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d = source.read(4) |
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if not d: |
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return "" |
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l = struct.unpack(">l", d)[0] |
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if l <= 4: |
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return "" |
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d = source.read(l - 4) |
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if len(d) < l - 4: |
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raise util.Abort(_("premature EOF reading chunk" |
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" (got %d bytes, expected %d)") |
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% (len(d), l - 4)) |
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return d |
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def chunkiter(source): |
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"""iterate through the chunks in source""" |
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while 1: |
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c = getchunk(source) |
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if not c: |
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break |
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yield c |
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def genchunk(data): |
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"""build a changegroup chunk""" |
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header = struct.pack(">l", len(data)+ 4) |
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return "%s%s" % (header, data) |
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def closechunk(): |
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return struct.pack(">l", 0) |
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