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  • Committer: Martin Pool
  • Date: 2011-05-20 14:46:02 UTC
  • mto: This revision was merged to the branch mainline in revision 5923.
  • Revision ID: mbp@canonical.com-20110520144602-bqli0t6dj01gl0pv
Various pyflakes import fixes.

Some modules were used for subclassing or at module load time, so there is no
point loading them lazily.

Some were not imported when they should be.

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bzrlib/chk_map.py
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# Copyright (C) 2008, 2009, 2010 Canonical Ltd
 
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# Copyright (C) 2008-2011 Canonical Ltd
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#
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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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lazy_import.lazy_import(globals(), """
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from bzrlib import (
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    errors,
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    versionedfile,
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    )
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""")
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from bzrlib import (
 
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    errors,
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    lru_cache,
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    osutils,
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    registry,
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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.
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        return self._search_prefix
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    def unmap(self, store, key, check_remap=True):
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        """Remove key from this node and it's children."""
 
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        """Remove key from this node and its children."""
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        if not len(self._items):
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            raise AssertionError("can't unmap in an empty InternalNode.")
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        children = [node for node, _
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try:
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    from bzrlib._chk_map_pyx import (
 
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        _bytes_to_text_key,
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        _search_key_16,
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        _search_key_255,
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        _deserialise_leaf_node,
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except ImportError, e:
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    osutils.failed_to_load_extension(e)
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    from bzrlib._chk_map_py import (
 
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        _bytes_to_text_key,
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        _search_key_16,
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        _search_key_255,
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        _deserialise_leaf_node,