From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: Mike Hommey <mh@glandium.org>
Cc: git@vger.kernel.org, "Junio C Hamano" <gitster@pobox.com>,
"Emily Shaffer" <emilyshaffer@google.com>,
"Jeff King" <peff@peff.net>, "René Scharfe" <l.s.r@web.de>
Subject: Re: [PATCH 8/8] hook-list.h: add a generated list of hooks, like config-list.h
Date: Mon, 15 Nov 2021 23:26:36 +0100 [thread overview]
Message-ID: <211115.86k0h9qcf5.gmgdl@evledraar.gmail.com> (raw)
In-Reply-To: <20211115220455.xse7mhbwabrheej4@glandium.org>
On Tue, Nov 16 2021, Mike Hommey wrote:
> On Thu, Sep 23, 2021 at 12:30:03PM +0200, Ævar Arnfjörð Bjarmason wrote:
>> -builtin/help.sp builtin/help.s builtin/help.o: config-list.h GIT-PREFIX
>> +hook.sp hook.s hook.o: hook-list.h
>> +
>> +builtin/help.sp builtin/help.s builtin/help.o: config-list.h hook-list.h GIT-PREFIX
>
> hook-list.h is only included from buitin/bugreport.c, so
> builtin/bugreport.o should be the one with the hook-list.h dependency,
> shouldn't it?
Well spotted, yes. This is a mistake. I think from some earlier WIP
version of the series.
In practice we don't really miss dependencies due to these sorts of
mistakes since we use the .depends files, i.e. GCC & Clang figure this
out for us:
$ grep hook-list .depend/* */.depend/*
builtin/.depend/bugreport.o.d: compat/compiler.h git-compat-util.h hook.h hook-list.h
builtin/.depend/bugreport.o.d:hook-list.h:
But we do over-depend a bit, if you touch hook-list.h and make
builtin/help.o we'll re-generate it due to this line.
If you or anyone else is more generally interested in the Makefile I'd
really like to get some reviews over at:
https://lore.kernel.org/git/cover-v2-00.18-00000000000-20211112T214150Z-avarab@gmail.com/
I've got some follow-up work that solve these dependencies more
generally, e.g. in this case we should really not need to slavishly
maintain these fallback dependency lists by hand, or have automated ways
of validating their correctness.
next prev parent reply other threads:[~2021-11-15 23:36 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-23 10:29 [PATCH 0/8] Makefile: generate a hook-list.h, prep for config-based-hooks Ævar Arnfjörð Bjarmason
2021-09-23 10:29 ` [PATCH 1/8] Makefile: mark "check" target as .PHONY Ævar Arnfjörð Bjarmason
2021-09-23 10:29 ` [PATCH 2/8] Makefile: stop hardcoding {command,config}-list.h Ævar Arnfjörð Bjarmason
2021-09-23 10:29 ` [PATCH 3/8] Makefile: don't perform "mv $@+ $@" dance for $(GENERATED_H) Ævar Arnfjörð Bjarmason
2021-09-23 10:29 ` [PATCH 4/8] Makefile: remove an out-of-date comment Ævar Arnfjörð Bjarmason
2021-09-23 10:30 ` [PATCH 5/8] hook.[ch]: move find_hook() from run-command.c to hook.c Ævar Arnfjörð Bjarmason
2021-09-23 10:30 ` [PATCH 6/8] hook.c: add a hook_exists() wrapper and use it in bugreport.c Ævar Arnfjörð Bjarmason
2021-09-23 10:30 ` [PATCH 7/8] hook.c users: use "hook_exists()" instead of "find_hook()" Ævar Arnfjörð Bjarmason
2021-09-23 10:30 ` [PATCH 8/8] hook-list.h: add a generated list of hooks, like config-list.h Ævar Arnfjörð Bjarmason
2021-09-24 10:19 ` Phillip Wood
2021-09-24 15:51 ` Junio C Hamano
2021-09-24 16:39 ` René Scharfe
2021-09-24 19:30 ` Ævar Arnfjörð Bjarmason
2021-09-24 19:56 ` René Scharfe
2021-09-24 20:09 ` Ævar Arnfjörð Bjarmason
2021-09-27 9:24 ` Phillip Wood
2021-09-27 10:36 ` Ævar Arnfjörð Bjarmason
2021-11-15 22:04 ` Mike Hommey
2021-11-15 22:26 ` Ævar Arnfjörð Bjarmason [this message]
2021-11-15 22:40 ` Mike Hommey
2021-11-15 22:49 ` Ævar Arnfjörð Bjarmason
2021-11-15 23:00 ` Mike Hommey
2021-11-16 12:01 ` Ævar Arnfjörð Bjarmason
2021-11-17 8:39 ` Junio C Hamano
2021-09-26 19:03 ` [PATCH v2 0/8] Makefile: generate a hook-list.h, prep for config-based-hooks Ævar Arnfjörð Bjarmason
2021-09-26 19:03 ` [PATCH v2 1/8] Makefile: mark "check" target as .PHONY Ævar Arnfjörð Bjarmason
2021-09-26 19:03 ` [PATCH v2 2/8] Makefile: stop hardcoding {command,config}-list.h Ævar Arnfjörð Bjarmason
2021-09-26 19:03 ` [PATCH v2 3/8] Makefile: don't perform "mv $@+ $@" dance for $(GENERATED_H) Ævar Arnfjörð Bjarmason
2021-09-26 19:03 ` [PATCH v2 4/8] Makefile: remove an out-of-date comment Ævar Arnfjörð Bjarmason
2021-09-26 19:03 ` [PATCH v2 5/8] hook.[ch]: move find_hook() from run-command.c to hook.c Ævar Arnfjörð Bjarmason
2021-09-26 19:03 ` [PATCH v2 6/8] hook.c: add a hook_exists() wrapper and use it in bugreport.c Ævar Arnfjörð Bjarmason
2021-09-26 19:03 ` [PATCH v2 7/8] hook.c users: use "hook_exists()" instead of "find_hook()" Ævar Arnfjörð Bjarmason
2021-09-26 19:03 ` [PATCH v2 8/8] hook-list.h: add a generated list of hooks, like config-list.h Ævar Arnfjörð Bjarmason
2021-09-27 16:48 ` Junio C Hamano
2021-09-27 18:00 ` René Scharfe
2021-09-27 20:23 ` Junio C Hamano
2021-09-27 9:30 ` [PATCH v2 0/8] Makefile: generate a hook-list.h, prep for config-based-hooks Phillip Wood
2021-09-27 10:38 ` Ævar Arnfjörð Bjarmason
2021-09-27 18:01 ` Phillip Wood
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