Re: [PATCHv4 08/12] Teach the notes lookup code to parse notes trees with various fanout schemes

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Johannes Schindelin <Johannes.Schindelin@xxxxxx> writes:

> I half-agree, the code should decide which fanout scheme to use, but 
> _only_ when producing new notes.
>
> I imagine that it could merge the existing notes, and try to make sure 
> that there are no more blobs in a given subtree than a certain threshold; 
> if that threshold is reached, it could fan-out using 2-digit subtrees, 
> merging what needs merging (by concatenation) along the way.
>
> The natural precedence of shallower paths/longer basenames should cope 
> well with that (i.e. prefer to show abcd/... over ab/cd/...).

Oh, if the plan for merging the trees is such that it takes care of
"multiple notes pointing at the same commit" issues like you outline, then
I can see it would work nicely.

At that point, fan-out would become merely an implementation detail,
something the end user never needs to worry about, just like what base
object is chosen to represent another object in a packfile.
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