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From: Junio C Hamano <gitster@pobox.com>
To: "lufia via GitGitGadget" <gitgitgadget@gmail.com>
Cc: git@vger.kernel.org, "KADOTA\, Kyohei" <lufia@lufia.org>
Subject: Re: [PATCH 2/4] Define TAR_CF and TAR_XF variables in Makefile
Date: Thu, 06 Aug 2020 10:50:19 -0700
Message-ID: <xmqqa6z7ll44.fsf@gitster.c.googlers.com> (raw)
In-Reply-To: <22f8f3e37a18263d890307701903dc18c98aa54b.1596675905.git.gitgitgadget@gmail.com> (lufia via GitGitGadget's message of "Thu, 06 Aug 2020 01:05:02 +0000")

"lufia via GitGitGadget" <gitgitgadget@gmail.com> writes:

> From: lufia <lufia@lufia.org>

See Documentation/SubmittingPatches[[real-name]].

> Plan 9's tar(1) don't support o option.
> So I changed Makefiles to replace tar commands if needed.

There is a big gap/leap between these two sentences.  The first
sentence might justify TAR_XF but it does not explain why TAR_CF
is needed at all.  Also there is "$(TAR) czf" that is left without
getting turned into $(TAR_CF)z.

Are there still remaining uses of $(TAR) after applying this patch?
If with a different justification, a patch that abstracts our use of
"tar" as an archiving tool into different use cases and give one
Makefile macro to each of them with more meaningful names might be
more palatable.  E.g. instead of TAR_CF that abstracts only the "tar
cf" part, make "take everything in the current directory and send an
archive of it to the standard output", i.e. "tar cf - .", into a
Makefile macro, with matching "take an archive from the standard
input and extract it to the current directory", i.e. "tar xf -", as
a matching Makefile macro, perhaps---that way people without a
working "tar" might be able to use zip, cpio or pax (or a script
written around them) as an alternative "archiving tool", for
example.

	Side note.  The above would probably be a huge undertaking
	and I am not suggesting it as a serious counterproposal.

A more plausible alternative is to just touch "$(TAR) xof -" and
replace it with $(TAR_XOF) or even $(EXTRACT_TARBALL_AS_MYSELF)
while leaving $(TAR_CF) alone.  That _might_ be palatable.

I dunno.

  reply	other threads:[~2020-08-06 17:51 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-06  1:05 [PATCH 0/4] Fit the building tools to Plan 9 environment KADOTA, Kyohei via GitGitGadget
2020-08-06  1:05 ` [PATCH 1/4] Use $(SHELL_PATH) instead of sh in Makefile lufia via GitGitGadget
2020-08-06  2:13   ` brian m. carlson
2020-08-06  4:10     ` Eric Sunshine
2020-08-06 14:39       ` Kyohei Kadota
2020-08-06 17:30       ` Junio C Hamano
2020-08-10  9:04         ` Kyohei Kadota
2020-08-06  1:05 ` [PATCH 2/4] Define TAR_CF and TAR_XF variables " lufia via GitGitGadget
2020-08-06 17:50   ` Junio C Hamano [this message]
2020-08-06  1:05 ` [PATCH 3/4] Fit to Plan 9's ANSI/POSIX compatibility layer lufia via GitGitGadget
2020-08-06  2:04   ` brian m. carlson
2020-08-06 13:49     ` Kyohei Kadota
2020-08-06 23:51       ` brian m. carlson
2020-08-06 23:57         ` Eric Sunshine
2020-08-06 18:10     ` Junio C Hamano
2020-08-10 10:53       ` Kyohei Kadota
2020-08-06  1:05 ` [PATCH 4/4] Use $(LD) instead of $(CC) for linking the object files lufia via GitGitGadget
2020-08-06  2:23 ` [PATCH 0/4] Fit the building tools to Plan 9 environment brian m. carlson
2020-09-09 19:47 ` [PATCH v2 0/2] " KADOTA, Kyohei via GitGitGadget
2020-09-09 19:47   ` [PATCH v2 1/2] Fit to Plan 9's ANSI/POSIX compatibility layer Kyohei Kadota via GitGitGadget
2020-09-09 19:56     ` Eric Sunshine
2020-09-09 20:34       ` Junio C Hamano
2020-09-10  0:35       ` Kyohei Kadota
2020-09-09 19:47   ` [PATCH v2 2/2] Use $(LD) instead of $(CC) for linking the object files Kyohei Kadota via GitGitGadget
2020-09-10  2:17   ` [PATCH v3 0/2] Fit the building tools to Plan 9 environment KADOTA, Kyohei via GitGitGadget
2020-09-10  2:17     ` [PATCH v3 1/2] Fit to Plan 9's ANSI/POSIX compatibility layer Kyohei Kadota via GitGitGadget
2020-09-10  5:13       ` Junio C Hamano
2020-09-10  2:17     ` [PATCH v3 2/2] Use $(LD) instead of $(CC) for linking the object files Kyohei Kadota via GitGitGadget
2020-09-10  5:31       ` Junio C Hamano

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