Re: [PATCH] patch-ids.c: cache patch IDs in a notes tree

[Junio C Hamano <gitster@pobox.com>]

John Keeping <john@keeping.me.uk> writes:

> This has the advantage that you get the benefit of the cache if you run
> "git log --cherry-mark" with the same paths more than once.  In my
> testing the cache is beneficial as soon as you examine more than one
> similar range (e.g. master...feature-A and then master...feature-B).

OK, so perhaps the notes that are keyed with commit ID will record
multiple entries, one for each invocation pattern (i.e. all pathspec
given, possibly with nonstandard options)?

"git diff -- t Documentation" and "git diff -- Docu\* t", even
though they use different pathspec, would produce the same diff;
instead of pathspec you may need to key with the actual list of
paths in the patch, though.