linux-kernel - Re: [PATCH 4/4] debian: add generic rule file

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Message-ID: <CAK7LNASps6JBAvtJshjMbqMk8QaSrMaH8pm-wHsEySTRJzu0Kw@mail.gmail.com>
Date:   Tue, 16 Jul 2019 17:58:49 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     "Theodore Y. Ts'o" <tytso@....edu>,
        "Enrico Weigelt, metux IT consult" <lkml@...ux.net>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        "Enrico Weigelt, metux IT consult" <info@...ux.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Robo Bot <apw@...onical.com>, Joe Perches <joe@...ches.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        linux-riscv@...ts.infradead.org,
        clang-built-linux <clang-built-linux@...glegroups.com>
Subject: Re: [PATCH 4/4] debian: add generic rule file

On Tue, Jul 16, 2019 at 4:13 AM Theodore Y. Ts'o <tytso@....edu> wrote:
>
> On Mon, Jul 15, 2019 at 08:56:25PM +0200, Enrico Weigelt, metux IT consult wrote:
> > On 15.07.19 14:28, Masahiro Yamada wrote:
> >
> > >> The rule file contains a rule for creating debian/control and
> > >> other metadata - this is done similar to the 'deb-pkg' make rule,
> > >> scripts/packaging/mkdebian.
> > >
> > > I saw a similar patch submission before, and negative feedback about it.
> >
> > Do you recall what negative feedback exactly ?

Sorry, my memory was broken.

I did not like this patch set from the beginning,
but missed to express my opinion strongly.

I want debian/ to be kept as a drop-in directory
for packagers, without replacing the upstream debian/rules.

If a check-in source file is modified in anyway,
scripts/setlocalversion would set -dirty flag,
which I want to avoid.



> It's possible I'm not remembering some of the feedback, but the only
> thing I recall was the comment I made that I'd really like this use
> case:
>
> make O=/build/linux-build bindeb-pkg
>
> to not break.  And as far as I can tell from the proposed patch series
> (I haven't had a chance to experimentally verify it yet), I don't
> think it should break anything --- I'm assuming that we will still
> have a way of creating the debian/rules file in
> /build/linux-build/debian/rules when doing a O= build, and that the
> intdeb-pkg rule remains the same.  At least, it appears to be the case
> from my doing a quick look at the patches.
>
> > > Debian maintains its own debian/rules, and it is fine.
> >
> > Not for me, I don't use it - given up trying to make anything useful
> > out of it. It's extremly complex, practically undebuggable and doesn't
> > even work w/o lots of external preparations.
>
> Yeah, the official Debian debian/rules is optimized for doing a
> distribution release, and in addition to the issues Enrico has raised,
> last time I tried it, it was S-L-O-W since it was building a fully
> generic kernel.  It's not at all useable for general developer use.

It is OK if the package is targeting normal users instead of
kernel developers.


> It sounds like what Enrico is trying to do is to enable running
> "dpkg-buildpackage -us -uc -b" from the the top-level kernel package
> as being easier than running "make bindeb-pkg".  I suspect this might
> be because his goal is to integrate individual kernel builds from
> using Debian's hermetic build / chroot systems (e.g., sbuild, pbuilder)?

I am OK with generating debian/rules with 'make bindeb-pkg', a shell scripts
or whatever, but I dislike to commit it in upstream git tree.

debian/rules is a hook for packagers to do their jobs in downstream.
"We kindly committed a generic one for you" sounds weird to me.

-- 
Best Regards
Masahiro Yamada