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  • Committer: Robert Collins
  • Date: 2008-04-04 00:43:07 UTC
  • mfrom: (3331 +trunk)
  • mto: This revision was merged to the branch mainline in revision 3333.
  • Revision ID: robertc@robertcollins.net-20080404004307-0whomfhm3yal2rvw
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bzrlib/deprecated_graph.py
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# Copyright (C) 2005 Canonical Ltd
 
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# Copyright (C) 2005, 2008 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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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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from bzrlib.tsort import topo_sort
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def max_distance(node, ancestors, distances, root_descendants):
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    """Calculate the max distance to an ancestor.  
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    Return None if not all possible ancestors have known distances"""
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    def get_ancestry(self, node_id, topo_sorted=True):
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        """Return the inclusive ancestors of node_id in topological order."""
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        # maybe optimise this ?
 
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        from bzrlib.tsort import topo_sort
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        result = {}
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        pending = set([node_id])
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        while len(pending):