From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: Todd Zullinger <tmz@pobox.com>
Cc: git@vger.kernel.org, Junio C Hamano <gitster@pobox.com>,
Matthieu Moy <git@matthieu-moy.fr>, Petr Baudis <pasky@ucw.cz>,
Jeff King <peff@peff.net>,
Johannes Schindelin <Johannes.Schindelin@gmx.de>,
Jari Aalto <jari.aalto@cante.net>,
Giuseppe Bilotta <giuseppe.bilotta@gmail.com>,
Marcus Griep <marcus@griep.us>
Subject: Re: [PATCH 3/8] perl: generalize the Git::LoadCPAN facility
Date: Fri, 16 Feb 2018 15:39:03 +0100 [thread overview]
Message-ID: <87k1vdf188.fsf@evledraar.gmail.com> (raw)
In-Reply-To: <20180215212338.GL27038@zaya.teonanacatl.net>
On Thu, Feb 15 2018, Todd Zullinger jotted:
> [I dropped bbourbie@slb.com from the Cc: list, as it bounced
> on my previous reply.]
>
> Ævar Arnfjörð Bjarmason wrote:
>> That makes sense, I'll incorporate that in a re-roll. I like
>> NO_PERL_CPAN_FALLBACKS or just NO_CPAN_FALLBACKS better.
>
> Either is an improvement. Starting with NO_PERL_ seems
> like a slightly better bikeshed color. :)
>
>> I'd really like to find some solution that works differently though,
>> because with this approach we'll run the full test suite against a
>> system where our fallbacks will be in place (although if the OS
>> distributor has done as promised we won't use them), and then just
>> remove this at 'make install' time, also meaning we'll re-gen it before
>> running 'make install' again, only to rm it again.
>>
>> The former issue we could deal with by munging the Git::LoadCPAN file so
>> it knows about NO_PERL_CPAN_FALLBACKS, and will always refuse to use the
>> fallbacks if that's set. That's a good idea anyway, because right now if
>> you e.g. uninstall Error.pm on Debian (which strips the CPAN fallbacks)
>> you get a cryptic "BUG: ..." message, it should instead say "we couldn't
>> get this module the OS promised we'd have" or something to that effect.
>
> Teaching Git::LoadCPAN to never fallback sounds like a good
> idea. At least then if the packager intended to avoid the
> fallbacks and didn't get it right the error message could be
> more useful.
>
> Hopefully that's not a common problem for packagers though.
> (And adding the Makefile knob was intended to help make it
> easier for packagers to achieve this common goal.)
>
>> The latter is trickier, I don't see an easy way to coerce the Makefile
>> into not copying the FromCPAN directory without going back to a
>> hardcoded list again, the easiest thing is probably to turn that:
>>
>> $(TAR) cf - .)
>>
>> Into:
>>
>> $(TAR) cf - $(find ... -not ....)
>>
>> Or something like that to get all the stuff that isn't the Git/FromCPAN
>> directory.
>>
>> Other suggestions most welcome.
>
> What about moving perl/Git/FromCPAN to perl/FromCPAN and
> then including perl/FromCPAN in LIB_PERL{,_GEN} only if
> NO_PERL_CPAN_FALLBACKS is unset?
>
> LIB_PERL := $(wildcard perl/Git.pm perl/Git/*.pm perl/Git/*/*.pm perl/Git/*/*/*.pm)
> +ifndef NO_PERL_CPAN_FALLBACKS
> +LIB_PERL += $(wildcard perl/FromCPAN/*.pm perl/FromCPAN/*/*.pm)
> +endif
> LIB_PERL_GEN := $(patsubst perl/%.pm,perl/build/lib/%.pm,$(LIB_PERL))
>
> I haven't tested that at all, so it could be broken in many
> ways.
Yes that's a much better idea, it evades the whole problem of conflating
the perl/Git* glob.
next prev parent reply other threads:[~2018-02-16 14:39 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-14 22:21 [PATCH 0/8] various perl fixes Ævar Arnfjörð Bjarmason
2018-02-14 22:21 ` [PATCH 1/8] perl: *.pm files should not have the executable bit Ævar Arnfjörð Bjarmason
2018-02-14 22:41 ` Jonathan Nieder
2018-02-25 19:01 ` Ævar Arnfjörð Bjarmason
2018-02-14 22:21 ` [PATCH 2/8] perl: move CPAN loader wrappers to another namespace Ævar Arnfjörð Bjarmason
2018-02-14 22:43 ` Jonathan Nieder
2018-02-14 22:21 ` [PATCH 3/8] perl: generalize the Git::LoadCPAN facility Ævar Arnfjörð Bjarmason
2018-02-14 22:57 ` Jonathan Nieder
2018-02-15 5:09 ` Todd Zullinger
2018-02-25 18:56 ` Ævar Arnfjörð Bjarmason
2018-02-25 19:05 ` Randall S. Becker
2018-02-15 4:53 ` Todd Zullinger
2018-02-15 20:41 ` Ævar Arnfjörð Bjarmason
2018-02-15 21:23 ` Todd Zullinger
2018-02-16 14:39 ` Ævar Arnfjörð Bjarmason [this message]
2018-02-16 17:55 ` Todd Zullinger
2018-02-16 22:03 ` Jonathan Nieder
2018-02-17 0:47 ` Todd Zullinger
2018-02-17 5:40 ` Todd Zullinger
2018-02-14 22:21 ` [PATCH 4/8] perl: update our ancient copy of Error.pm Ævar Arnfjörð Bjarmason
2018-02-14 23:03 ` Jonathan Nieder
2018-02-15 20:46 ` Ævar Arnfjörð Bjarmason
2018-02-14 22:21 ` [PATCH 5/8] perl: update our copy of Mail::Address Ævar Arnfjörð Bjarmason
2018-02-14 23:46 ` Jonathan Nieder
2018-02-15 9:32 ` Matthieu Moy
2018-02-15 20:31 ` Ævar Arnfjörð Bjarmason
2018-02-14 22:21 ` [PATCH 6/8] git-send-email: unconditionally use Net::{SMTP,Domain} Ævar Arnfjörð Bjarmason
2018-02-14 23:49 ` Jonathan Nieder
2018-02-15 20:43 ` Ævar Arnfjörð Bjarmason
2018-02-14 22:21 ` [PATCH 7/8] gitweb: hard-depend on the Digest::MD5 5.8 module Ævar Arnfjörð Bjarmason
2018-02-14 23:52 ` Jonathan Nieder
2018-02-14 22:21 ` [PATCH 8/8] perl: hard-depend on the File::{Temp,Spec} modules Ævar Arnfjörð Bjarmason
2018-02-14 23:54 ` Jonathan Nieder
2018-02-15 20:42 ` Ævar Arnfjörð Bjarmason
2018-02-15 21:33 ` Junio C Hamano
2018-02-25 19:46 ` [PATCH v2 00/13] various perl fixes Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 " Ævar Arnfjörð Bjarmason
2018-03-05 19:01 ` Junio C Hamano
2018-03-03 15:38 ` [PATCH v3 01/13] perl: *.pm files should not have the executable bit Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 02/13] Git.pm: remove redundant "use strict" from sub-package Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 03/13] Git.pm: add the "use warnings" pragma Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 04/13] gitweb: hard-depend on the Digest::MD5 5.8 module Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 05/13] Git.pm: hard-depend on the File::{Temp,Spec} modules Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 06/13] git-send-email: unconditionally use Net::{SMTP,Domain} Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 07/13] perl: update our ancient copy of Error.pm Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 08/13] perl: update our copy of Mail::Address Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 09/13] perl: move CPAN loader wrappers to another namespace Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 10/13] perl: generalize the Git::LoadCPAN facility Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 11/13] perl: move the perl/Git/FromCPAN tree to perl/FromCPAN Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 12/13] Makefile: add NO_PERL_CPAN_FALLBACKS knob Ævar Arnfjörð Bjarmason
2018-03-03 15:38 ` [PATCH v3 13/13] perl Git::LoadCPAN: emit better errors under NO_PERL_CPAN_FALLBACKS Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 01/13] perl: *.pm files should not have the executable bit Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 02/13] Git.pm: remove redundant "use strict" from sub-package Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 03/13] Git.pm: add the "use warnings" pragma Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 04/13] gitweb: hard-depend on the Digest::MD5 5.8 module Ævar Arnfjörð Bjarmason
2018-02-25 20:00 ` Eric Sunshine
2018-02-25 19:46 ` [PATCH v2 05/13] Git.pm: hard-depend on the File::{Temp,Spec} modules Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 06/13] git-send-email: unconditionally use Net::{SMTP,Domain} Ævar Arnfjörð Bjarmason
2018-02-25 20:03 ` Eric Sunshine
2018-02-25 19:46 ` [PATCH v2 07/13] perl: update our ancient copy of Error.pm Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 08/13] perl: update our copy of Mail::Address Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 09/13] perl: move CPAN loader wrappers to another namespace Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 10/13] perl: generalize the Git::LoadCPAN facility Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 11/13] perl: move the perl/Git/FromCPAN tree to perl/FromCPAN Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 12/13] Makefile: add NO_PERL_CPAN_FALLBACKS knob Ævar Arnfjörð Bjarmason
2018-02-25 19:46 ` [PATCH v2 13/13] perl Git::LoadCPAN: emit better errors under NO_PERL_CPAN_FALLBACKS Ævar Arnfjörð Bjarmason
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