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  • Committer: John Arbash Meinel
  • Date: 2009-10-13 18:00:16 UTC
  • mto: This revision was merged to the branch mainline in revision 4755.
  • Revision ID: john@arbash-meinel.com-20091013180016-y9ciypkm8lor58fx
Implement StaticTuple.from_sequence()

This allows casting from something that *might* be a StaticTuple
into something that is definitely a StaticTuple, without having to
create a new instance.

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bzrlib/tree.py
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# Copyright (C) 2005-2010 Canonical Ltd
 
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# Copyright (C) 2005, 2009 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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from bzrlib.inventory import InventoryFile
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from bzrlib.inter import InterObject
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from bzrlib.osutils import fingerprint_file
 
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import bzrlib.revision
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from bzrlib.symbol_versioning import deprecated_function, deprecated_in
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from bzrlib.trace import note
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    def iter_changes(self, from_tree, include_unchanged=False,
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                     specific_files=None, pb=None, extra_trees=None,
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                     require_versioned=True, want_unversioned=False):
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        """See InterTree.iter_changes"""
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        intertree = InterTree.get(from_tree, self)
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        return intertree.iter_changes(include_unchanged, specific_files, pb,
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            extra_trees, require_versioned, want_unversioned=want_unversioned)
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            bit_iter = iter(path.split("/"))
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            for elt in bit_iter:
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                lelt = elt.lower()
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                new_path = None
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                for child in self.iter_children(cur_id):
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                    try:
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                        # XXX: it seem like if the child is known to be in the
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                        # tree, we shouldn't need to go from its id back to
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                        # its path -- mbp 2010-02-11
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                        #
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                        # XXX: it seems like we could be more efficient
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                        # by just directly looking up the original name and
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                        # only then searching all children; also by not
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                        # chopping paths so much. -- mbp 2010-02-11
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                        child_base = os.path.basename(self.id2path(child))
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                        if (child_base == elt):
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                            # if we found an exact match, we can stop now; if
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                            # we found an approximate match we need to keep
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                            # searching because there might be an exact match
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                            # later.  
 
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                        if child_base.lower() == lelt:
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                            cur_id = child
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                            new_path = osutils.pathjoin(cur_path, child_base)
 
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                            cur_path = osutils.pathjoin(cur_path, child_base)
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                            break
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                        elif child_base.lower() == lelt:
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                            cur_id = child
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                            new_path = osutils.pathjoin(cur_path, child_base)
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                    except NoSuchId:
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                        # before a change is committed we can see this error...
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                        continue
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                if new_path:
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                    cur_path = new_path
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                else:
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                    # got to the end of this directory and no entries matched.
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                    # Return what matched so far, plus the rest as specified.
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                for path in path_names:
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                    yield searcher.get_items(path)
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    @needs_read_lock
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    def _get_rules_searcher(self, default_searcher):
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        """Get the RulesSearcher for this tree given the default one."""
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        searcher = default_searcher
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    will pass through to InterTree as appropriate.
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    """
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    # Formats that will be used to test this InterTree. If both are
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    # None, this InterTree will not be tested (e.g. because a complex
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    # setup is required)
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    _matching_from_tree_format = None
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    _matching_to_tree_format = None
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    _optimisers = []
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    def _changes_from_entries(self, source_entry, target_entry,
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            a PathsNotVersionedError will be thrown.
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        :param want_unversioned: Scan for unversioned paths.
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        """
 
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        # NB: show_status depends on being able to pass in non-versioned files
 
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        # and report them as unknown
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        trees = (self.source,)
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        if extra_trees is not None:
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            trees = trees + tuple(extra_trees)