Michael J Gruber <g...@drmicha.warpmail.net> writes:
> It was introduced in 0ab7befa with a clear meaning (AND everything),
> then the general logic (without --all-match) was modified in 80235ba7
> (to take headermatch AND (all greps ORed)), and 5aaeb733 finally made
> multiple authors resp. committers get ORed among each other. All of this
> in an attempt to make the standard usage most useful, of course. As a
> consequence, --all-match does not influence multiple --author options at
> all (contrary to the doc), e.g.
>
> I don't see any of this reflected in the doc, though. I noticed only by
> reading t/t7810-grep.sh. Before that, I had only gone by my own testing
> which didn't reveal the multiple author multiple special casing effect.
>
> I guess I'll have to wrap my head around the current implementation a
> few more times before trying to describe the status quo in the
> documentation...
This is what I used to use when adding these generalized grep
boolean expressions.
With this applied, you can try things like these:
$ git log --grep=regexp --grep=nosuch --all-match >/dev/null
$ git log --grep=regexp --grep=nosuch --author=Michael >/dev/null
For example, "--all-match --grep=regexp --author=Michael --author=Linus" turns
into
[all-match]
(or
pattern_body<body>regexp
(or
(or
pattern_head<head 0>Linus
pattern_head<head 0>Michael
)
true
)
)
that says "body must have 'regexp' in it, and authored by either
Linus or Michael".
The semantics of "--all-match" is different from "--and" (which,
together with "--or", ")", and "(", is not availble to rev-list
command line parser primarily because "--not" is not available).
After applying all the "or"-ed terms, it checks the top-level nodes
that are "or"-ed and makes sure all of them fired (possibly and
usually on different lines).
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