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Viewing changes to bzrlib/chk_map.py

  • Committer: Martin Pool
  • Date: 2010-07-21 09:58:42 UTC
  • mfrom: (4797.58.7 2.1)
  • mto: (5050.3.13 2.2)
  • mto: This revision was merged to the branch mainline in revision 5365.
  • Revision ID: mbp@canonical.com-20100721095842-hz0obu8gl0x05nty
merge up 2.1 to 2.2

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bzrlib/chk_map.py
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_INTERESTING_NEW_SIZE = 50
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# If a ChildNode shrinks by more than this amount, we check for a remap
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_INTERESTING_SHRINKAGE_LIMIT = 20
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# If we delete more than this many nodes applying a delta, we check for a remap
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_INTERESTING_DELETES_LIMIT = 5
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def _search_key_plain(key):
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            into the map; if old_key is not None, then the old mapping
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            of old_key is removed.
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        """
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        delete_count = 0
 
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        has_deletes = False
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        # Check preconditions first.
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        as_st = StaticTuple.from_sequence
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        new_items = set([as_st(key) for (old, key, value) in delta
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        for old, new, value in delta:
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            if old is not None and old != new:
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                self.unmap(old, check_remap=False)
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                delete_count += 1
 
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                has_deletes = True
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        for old, new, value in delta:
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            if new is not None:
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                self.map(new, value)
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        if delete_count > _INTERESTING_DELETES_LIMIT:
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            trace.mutter("checking remap as %d deletions", delete_count)
 
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        if has_deletes:
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            self._check_remap()
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        return self._save()
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        """Check if nodes can be collapsed."""
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        self._ensure_root()
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        if type(self._root_node) is InternalNode:
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            self._root_node._check_remap(self._store)
 
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            self._root_node = self._root_node._check_remap(self._store)
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    def _save(self):
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        """Save the map completely.