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  • Committer: Andrew Bennetts
  • Date: 2008-08-07 00:25:38 UTC
  • mfrom: (3612 +trunk)
  • mto: This revision was merged to the branch mainline in revision 3613.
  • Revision ID: andrew.bennetts@canonical.com-20080807002538-mtl1fcgy2fdabha4
Merge from bzr.dev.

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bzrlib/knit.py
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    """Storage for many versioned files using knit compression.
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    Backend storage is managed by indices and data objects.
 
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    :ivar _index: A _KnitGraphIndex or similar that can describe the 
 
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        parents, graph, compression and data location of entries in this 
 
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        KnitVersionedFiles.  Note that this is only the index for 
 
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        *this* vfs; if there are fallbacks they must be queried separately.
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    """
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    def __init__(self, index, data_access, max_delta_chain=200,
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        for count in xrange(self._max_delta_chain):
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            # XXX: Collapse these two queries:
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            try:
 
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                # Note that this only looks in the index of this particular
 
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                # KnitVersionedFiles, not in the fallbacks.  This ensures that
 
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                # we won't store a delta spanning physical repository
 
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                # boundaries.
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                method = self._index.get_method(parent)
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            except RevisionNotPresent:
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                # Some basis is not locally present: always delta