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  • Committer: Canonical.com Patch Queue Manager
  • Date: 2007-08-31 02:05:10 UTC
  • mfrom: (2670.3.8 vf-data-stream)
  • Revision ID: pqm@pqm.ubuntu.com-20070831020510-emrlta5dk6ta95zp
(Andrew Bennetts) Add get_data_stream, insert_data_stream and get_format_signature to KnitVersionedFile.

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bzrlib/repofmt/knitrepo.py
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import bzrlib.revision as _mod_revision
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from bzrlib.store.versioned import VersionedFileStore
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from bzrlib.trace import mutter, note, warning
 
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from bzrlib.util import bencode
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class _KnitParentsProvider(object):
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                                     _revision_store=_revision_store,
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                                     control_store=control_store,
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                                     text_store=text_store)
 
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def _get_stream_as_bytes(knit, required_versions):
 
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    """Generate a serialised data stream.
 
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    The format is a bencoding of a list.  The first element of the list is a
 
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    string of the format signature, then each subsequent element is a list
 
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    corresponding to a record.  Those lists contain:
 
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      * a version id
 
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      * a list of options
 
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      * a list of parents
 
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      * the bytes
 
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    :returns: a bencoded list.
 
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    """
 
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    knit_stream = knit.get_data_stream(required_versions)
 
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    format_signature, data_list, callable = knit_stream
 
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    data = []
 
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    data.append(format_signature)
 
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    for version, options, length, parents in data_list:
 
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        data.append([version, options, parents, callable(length)])
 
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    return bencode.bencode(data)
 
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