Re: [PATCH 2/2] bloom: enable multiple pathspec bloom keys

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Junio C Hamano <gitster@xxxxxxxxx> writes:
> Totally outside the topic, but I wonder if we can further optimize
> by adding an early rejection using .nowildcard_len?  Instead of
> allowing a wildcarded "dir/*" pathspec element from disabling the
> Bloom filter altogether, we could say "dir/ is not possibly altered,
> so there may be dir/A, dir/B, etc., in the directory, nothing that
> would match dir/* wildcard would have been modified", couldn't we?

I think, except for PATHSPEC_EXCLUDE, all other pathspec magic flags
could potentially be optimized using .nowildcard_len by restricting checks to
just the dir/ part of each pathspec item.

Here;s are all possible pathspec magic
#define PATHSPEC_FROMTOP	(1<<0)
#define PATHSPEC_MAXDEPTH	(1<<1)
#define PATHSPEC_LITERAL	(1<<2)
#define PATHSPEC_GLOB		(1<<3)
#define PATHSPEC_ICASE		(1<<4)
#define PATHSPEC_EXCLUDE	(1<<5)
#define PATHSPEC_ATTR		(1<<6)






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