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# Copyright (C) 2006,2011 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Smart-server protocol, client and server.
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This code is fairly complex, so it has been split up into a package of modules,
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rather than being a single large module. Refer to the individual module
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docstrings for details.
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Server-side request handlers are registered in the `bzrlib.smart.request`
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The domain logic is in `bzrlib.remote`: `RemoteBzrDir`, `RemoteBranch`,
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There is also an plain file-level transport that calls remote methods to
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manipulate files on the server in `bzrlib.transport.remote`.
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The protocol is described in doc/developers/network-protocol.txt.
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# TODO: A plain integer from query_version is too simple; should give some
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# TODO: Make each request and response self-validatable, e.g. with checksums.
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# TODO: is it useful to allow multiple chunks in the bulk data?
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# TODO: If we get an exception during transmission of bulk data we can't just
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# emit the exception because it won't be seen.
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# John proposes: I think it would be worthwhile to have a header on each
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# chunk, that indicates it is another chunk. Then you can send an 'error'
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# chunk as long as you finish the previous chunk.
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# Promote some attributes from submodules into this namespace
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from bzrlib.smart.request import SmartServerRequestHandler