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Viewing changes to bzrlib/store/__init__.py

  • Committer: Robert Collins
  • Date: 2005-10-10 23:18:27 UTC
  • mfrom: (1437)
  • mto: This revision was merged to the branch mainline in revision 1438.
  • Revision ID: robertc@robertcollins.net-20051010231827-f9e2dda2e92bf565
merge from upstream

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bzrlib/store/__init__.py
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"""
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from cStringIO import StringIO
 
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from stat import ST_MODE, S_ISDIR
 
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from zlib import adler32
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import bzrlib.errors as errors
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from bzrlib.errors import BzrError, UnlistableStore, TransportNotPossible
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from bzrlib.trace import mutter
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import bzrlib.transport
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    _max_buffered_requests = 10
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    def __getitem__(self, fileid):
 
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        """Returns a file reading from a particular entry."""
 
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        fn = self._relpath(fileid)
 
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        try:
 
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            return self._transport.get(fn)
 
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        except errors.NoSuchFile:
 
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            raise KeyError(fileid)
 
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    def __init__(self, transport):
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        assert isinstance(transport, bzrlib.transport.Transport)
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        super(TransportStore, self).__init__()
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    __str__ = __repr__
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    def _iter_relpaths(self):
 
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        """Iter the relative paths of files in the transports sub-tree."""
 
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        transport = self._transport
 
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        queue = list(transport.list_dir('.'))
 
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        while queue:
 
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            relpath = queue.pop(0)
 
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            st = transport.stat(relpath)
 
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            if S_ISDIR(st[ST_MODE]):
 
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                for i, basename in enumerate(transport.list_dir(relpath)):
 
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                    queue.insert(i, relpath+'/'+basename)
 
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            else:
 
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                yield relpath, st
 
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    def listable(self):
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        """Return True if this store is able to be listed."""
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        return self._transport.listable()
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    ids = [f for f in store_from]
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    store_to.copy_multi(store_from, ids)
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def hash_prefix(file_id):
 
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    return "%02x/" % (adler32(file_id) & 0xff)
 
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