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1 # Copyright 2009-2010 Gregory P. Ward
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2 # Copyright 2009-2010 Intelerad Medical Systems Incorporated
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3 # Copyright 2010-2011 Fog Creek Software
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4 # Copyright 2010-2011 Unity Technologies
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5 #
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6 # This software may be used and distributed according to the terms of the
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7 # GNU General Public License version 2 or any later version.
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8
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9 '''track large binary files
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10
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11 Large binary files tend to be not very compressible, not very "diffable", and
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12 not at all mergeable. Such files are not handled well by Mercurial\'s storage
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13 format (revlog), which is based on compressed binary deltas. largefiles solves
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14 this problem by adding a centralized client-server layer on top of Mercurial:
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15 largefiles live in a *central store* out on the network somewhere, and you only
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16 fetch the ones that you need when you need them.
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17
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18 largefiles works by maintaining a *standin* in .hglf/ for each largefile. The
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19 standins are small (41 bytes: an SHA-1 hash plus newline) and are tracked by
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20 Mercurial. Largefile revisions are identified by the SHA-1 hash of their
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21 contents, which is written to the standin. largefiles uses that revision ID to
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22 get/put largefile revisions from/to the central store.
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23
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24 A complete tutorial for using lfiles is included in ``usage.txt`` in the lfiles
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25 source distribution. See
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26 https://developers.kilnhg.com/Repo/Kiln/largefiles/largefiles/File/usage.txt
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27 '''
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28
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29 from mercurial import commands
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30
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31 import lfcommands
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32 import reposetup
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33 import uisetup
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34
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35 reposetup = reposetup.reposetup
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36 uisetup = uisetup.uisetup
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37
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38 commands.norepo += " lfconvert"
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39
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40 cmdtable = lfcommands.cmdtable
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