bug#71179: [PATCH] In rgrep, check matching files before excluding files

[Dmitry Gutov]

On 25/05/2024 17:13, Eli Zaretskii wrote:
> >   For example, you never
> >   considered the cases where the files which match the pattern to search
> >   also match the ignored-extensions, and many other possibilities.
> >
> > In that case the file will not be searched, same as before this change.  No 
> > behavior change.
> We are talking about performance here.

FWIW I don't see which performance problem you have in mind.

If you mean the possible regression in the case "user picked file 
extension that's already in ignores", then I don't think it's going to 
be any noticeably slower in vast majority of cases. And it's not a 
scenario to optimize for anyway.