Re: [commit] Deprecate remaining STREQ uses

[Daniel Jacobowitz <drow at mvista dot com>]

On Mon, Dec 01, 2003 at 04:25:51PM -0500, Andrew Cagney wrote:
> >On Mon, Dec 01, 2003 at 09:07:32PM +0200, Eli Zaretskii wrote:
> >
> >>> Date: Mon, 01 Dec 2003 10:47:01 -0500
> >>> From: Andrew Cagney <cagney@gnu.org>
> >
> >>> > 
> >>> > But that's precisely why we have the patch review and approval
> >>> > procedure, right?  Maintainers who approve patches are supposed to
> >>> > prevent code that uses deprecated machinery from being added.
> >
> >>> 
> >>> Very true.  Explicit deprecation is a tool for making that part of the 
> >>> maintainer and contributor task far easier.  Instead of wasting time 
> >>> trying to track and find all the things being eliminated, the 
> >>> contributor and reviewer can simply keep an eye out for deprecated in 
> >>> their patches
> >
> >>
> >>I'm not convinced that detecting STREQ is harder than detecting
> >>DEPRECATED_STREQ.
> >
> >
> >Neither am I... Andrew, how would you feel about a central (in the
> >source tree) list of deprecated objects instead?
> 
> I see you didn't reply to the attached e-mail.

You're right.  I was going to, so I'll do it below.  I fail to see how
it's related to the question above though.

> Date: Mon, 24 Nov 2003 17:08:54 -0500
> From: Andrew Cagney <cagney@gnu.org>
> Subject: Re: [commit] Deprecate remaining STREQ uses
> To: Daniel Jacobowitz <drow@mvista.com>
> Cc: gdb-patches@sources.redhat.com
> 
> 
> >At least one now :)  There are a number of other solutions to this. 
> >Have you considered making the ARI mail contributors for certain
> >(low-false-positive) categories?  Like, for instance, this one.  The
> >gcc-regression mailing list has several scripts to pull the ChangeLog
> >entries since the last run and mail victims.  It's extremely effective.
> 
> I find the GCC script anything but effective.  I get spammed everytime I 
> commit something to GCC - a very negative experience for an infrequent 
> GCC committer.  I've now been conditioned into ignoring that mail :-(

This is not the normal state of affairs.  Normally bootstraps do work,
and I only get mail when someone has newly broken the tree - and of the
four times that's happened one of them was me, so I'd call it pretty
good results.

ARI runs a _lot_ faster than a GCC build/regression session.  If you
set the script to mail only on increases in problems, rather than on
existing problems, you should be able to get a response pretty much at
per-patch granularity.  This is different from the way GCC uses their
system, because GCC has an extremely different attitude towards the
testsuite - failures are absolutely unacceptable.

> Contrast that to -Werror (yes ok, it isn't a requirement) and 
> gdb_mbuild.sh.  By encouraging their use we make it possible for people 
> to address the problems _before_ they become an issue.  That way the 
> contributor and maintainer don't even need to discuss them.  For 
> something like the ARI to be mainlined, it would need to be integrated 
> into the build process in a way that didn't leave the user confused (a 
> standard build would have to be 100% warning free - something that at 
> present is impossible to achieve).

Check in the baseline status to the repository if you want to do that. 
Generate it during builds.  Require people who check in patches which
add ARI problems to also check in a patch bumping the failure totals,
and it'll be obvious what's going on and where problems come from.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer