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Broadly tries to ascribe parts of the tree state to individual commits.
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There appear to be three basic ways of generating annotations:
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If the annotation works by asking the storage layer for successive full texts
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then the scaling of this will be proportional to the time to diff throughout
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the history of thing being annotated.
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If the annotation works by asking the storage layer for successive deltas
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within the history of the thing being annotated we believe we can make it scale
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broadly proportional to the depth of the tree of revisions of the annotated
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If the annotation works by combining cached annotations such that creating a
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full text recreates annotations for it then it will scale with the cost of
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Generally we want our current annotations but it would be nice to be able to do
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whitespace annotations and potentially other diff based annotations.
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Some things to think about:
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* Perhaps multiparent deltas would allow us to not store the cached
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annotations in each delta without losing performance or accuracy.
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doc/developers/annotate.txt
