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795d8e93
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2014-09-29T08:03:22
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index: make sure to write cached subtrees if parent is invalidated
If e.g. the root tree is invalidated, we still want to write out
its children, since those may still have valid cache entries.
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c2f8b215
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2014-09-28T07:00:49
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index: write out the tree cache extension
Keeping the cache around after read-tree is only one part of the
optimisation opportunities. In order to share the cache between program
instances, we need to write the TREE extension to the index.
Do so, taking the opportunity to rename 'entries' to 'entry_count' to
match the name given in the format description. The included test is
rather trivial, but works as a sanity check.
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ee4db1c1
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2014-07-11T11:48:51
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index: add tests for the tree cache
These test that we invalidate at the right levels and that we remove the
tree cache when clearing the index.
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