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Committer:
John Arbash Meinel
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Date:
2007-11-30 23:18:15 UTC
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mto:
This revision was merged to the branch mainline in
revision
3072.
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Revision ID:
john@arbash-meinel.com-20071130231815-0r6ce70307kmv28r
Use a Graph.heads() check to determine if the ancestries are compatible.
Whether we should do nothing because source is already ahead,
raise an exception because we have diverged,
or move forward because the new revision is a tip revision.