Re: [PATCH v4] checkpatch: improve email parsing

[Dwaipayan Ray]

On Sat, Nov 7, 2020 at 3:34 AM Joe Perches <joe@xxxxxxxxxxx> wrote:
>
> On Sat, 2020-11-07 at 03:15 +0530, Dwaipayan Ray wrote:
> > checkpatch doesn't report warnings for many common mistakes
> > in emails. Some of which are trailing commas and incorrect
> > use of email comments.
>
> Assuming it all works, this looks good.  I haven't tested it.
>
> How did you test the $fix bits?
>
Hi,
I actually dumped about 17k unique emails from git log, put it in one of
my previous patches, and ran checkpatch with --fix on it.
I checked the diff and most of the cases looked pretty good to me.
I could send the diff output if you like?

> Trivial notes:
>
> > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> []
> > +                             # stable@xxxxxxxxxxxxxxx or stable@xxxxxxxxxx shouldn't
> > +                             # have an email name. In addition commments should strictly
> > +                             # begin with a #
> > +                             if ($email =~ /^.*stable\@(?:vger\.)?kernel\.org/) {
>
> Likely better to test with a case insensitive match so
> STABLE@xxxxxxxxxxxxxxx and such are still warned.

Sure, I will do that.
>
>                                 if ($email =~ /\bstable\@(?:vger\.)?kernel\.org\b/i) {
>
> > +                                     if ($sign_off =~ /cc:$/i && (($comment ne "" && $comment !~ /^#.+/) ||
> > +                                         ($email_name ne ""))) {
>
> || $sign_off !~ /^cc:/i ?

I actually had a doubt about that one. Only the stable address with
Cc: should be checked right? Or something else?

What about those stable addresses with tags other than Cc: ? Should
a change be suggested?

Thanks,
Dwaipayan.