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  • Committer: Aaron Bentley
  • Date: 2005-09-14 16:35:46 UTC
  • mto: (1185.1.16)
  • mto: This revision was merged to the branch mainline in revision 1390.
  • Revision ID: abentley@panoramicfeedback.com-20050914163546-ef044baf4ef9c135
Improved merge error handling and testing

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    root, ancestors, descendants = revision_graph(revision_a, revision_source)
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    root_b, ancestors_b, descendants_b = revision_graph(revision_b, 
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                                                        revision_source)
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    assert root == root_b
 
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    if root != root_b:
 
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        raise bzrlib.errors.NoCommonRoot(revision_a, revision_b)
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    common = set()
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    for node, node_anc in ancestors_b.iteritems():
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        if node in ancestors:
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    return root, ancestors, descendants, common
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def common_ancestor(revision_a, revision_b, revision_source):
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    root, ancestors, descendants, common = \
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        combined_graph(revision_a, revision_b, revision_source)
 
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    try:
 
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        root, ancestors, descendants, common = \
 
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            combined_graph(revision_a, revision_b, revision_source)
 
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    except bzrlib.errors.NoCommonRoot:
 
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        raise bzrlib.errors.NoCommonAncestor(revision_a, revision_b)
 
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    nodes = farthest_nodes(descendants, ancestors, root)
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    for node in nodes:
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        if node in common:
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            return node
 
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    raise bzrlib.errors.NoCommonAncestor(revision_a, revision_b)
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class MultipleRevisionSources(object):
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    """Proxy that looks in multiple branches for revisions."""