Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/changegroup.py @ 3519:5c57a5a17963
Hide deprecated flags in help unless verbose
author | Matt Mackall <mpm@selenic.com> |
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date | Wed, 25 Oct 2006 17:38:17 -0500 |
parents | fe1689273f84 |
children | 025f68f22ae2 |
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1981
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make incoming work via ssh (issue139); move chunk code into separate module.
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1 """ |
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2 changegroup.py - Mercurial changegroup manipulation functions |
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3 |
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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 """ |
1997
802e8a029d99
Added missing gettext import to changegroup.py.
Thomas Arendsen Hein <thomas@intevation.de>
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1981
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9 from i18n import gettext as _ |
1981
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10 from demandload import * |
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use demandload more.
Vadim Gelfer <vadim.gelfer@gmail.com>
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1997
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11 demandload(globals(), "struct util") |
1981
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12 |
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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 |