From: Junio C Hamano <gitster@pobox.com>
To: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Cc: Dennis Kaarsemaker <dennis@kaarsemaker.net>, git@vger.kernel.org
Subject: Re: [PATCH 2/2] difftool: add a feature flag for the builtin vs scripted version
Date: Wed, 23 Nov 2016 12:04:24 -0800 [thread overview]
Message-ID: <xmqq8tsam08n.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <alpine.DEB.2.20.1611232051420.3746@virtualbox> (Johannes Schindelin's message of "Wed, 23 Nov 2016 20:55:25 +0100 (CET)")
Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:
> Hi Junio,
>
> On Wed, 23 Nov 2016, Junio C Hamano wrote:
>
>> Junio C Hamano <gitster@pobox.com> writes:
>>
>> > Can't you route the control upon seeing "git difftool" to your
>> > experimental "C" difftool and check the configuration there? Then
>> > you can decide to run_command() a non-builtin one depending what the
>> > configuration says---that way, you would incur cost of spawning Perl
>> > only when you need it, no?
>>
>> FWIW, the approach taken by 73c2779f42 ("builtin-am: implement
>> skeletal builtin am", 2015-08-04) is what I had in mind when I wrote
>> the above.
>
> Maybe that worked back then. But I doubt it, because checking out that
> revision, I get this "warning":
>
> Makefile:1732: warning: overriding recipe for target 'git-am'
> Makefile:1696: warning: ignoring old recipe for target 'git-am'
>
> Seems like a matter of luck whether the `make` executable you happen to
> use guesses what we want: to munge git-am.sh into git-am, as opposed to
> hard-linking git to git-am.
You do not need to keep two copies of "git-cmd", though. commands[]
table can have an entry "difftool" that points at cmd_difftool(),
which switches between run_command("difftool-scripted") or makes a
function call to a static difftool_builtin() that you wrote in 1/2.
next prev parent reply other threads:[~2016-11-23 20:04 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-22 17:01 [PATCH 0/2] Show Git Mailing List: a builtin difftool Johannes Schindelin
2016-11-22 17:01 ` [PATCH 1/2] difftool: add the builtin Johannes Schindelin
2016-11-23 8:08 ` David Aguilar
2016-11-23 11:34 ` Johannes Schindelin
2016-11-22 17:01 ` [PATCH 2/2] difftool: add a feature flag for the builtin vs scripted version Johannes Schindelin
2016-11-23 14:51 ` Dennis Kaarsemaker
2016-11-23 17:29 ` Johannes Schindelin
2016-11-23 17:40 ` Junio C Hamano
2016-11-23 18:18 ` Junio C Hamano
2016-11-23 19:55 ` Johannes Schindelin
2016-11-23 20:04 ` Junio C Hamano [this message]
2016-11-23 22:01 ` Johannes Schindelin
2016-11-23 22:03 ` [PATCH v2 0/1] Show Git Mailing List: a builtin difftool Johannes Schindelin
2016-11-23 22:03 ` [PATCH v2 1/1] difftool: add the builtin Johannes Schindelin
2016-11-23 22:25 ` Junio C Hamano
2016-11-23 22:30 ` Junio C Hamano
2016-11-24 10:38 ` Johannes Schindelin
2016-11-24 20:55 ` [PATCH v3 0/2] Show Git Mailing List: a builtin difftool Johannes Schindelin
2016-11-24 20:55 ` [PATCH v3 1/2] difftool: add a skeleton for the upcoming builtin Johannes Schindelin
2016-11-24 21:08 ` Jeff King
2016-11-24 21:56 ` Johannes Schindelin
2016-11-25 3:18 ` Jeff King
2016-11-25 11:05 ` Johannes Schindelin
2016-11-25 17:19 ` Jeff King
2016-11-25 17:41 ` Johannes Schindelin
2016-11-25 17:47 ` Jeff King
2016-11-26 12:22 ` Johannes Schindelin
2016-11-26 16:19 ` Jeff King
2016-11-26 13:01 ` Johannes Schindelin
2016-11-27 16:50 ` Jeff King
2016-11-28 17:06 ` Junio C Hamano
2016-11-28 17:34 ` Johannes Schindelin
2016-11-28 19:27 ` Junio C Hamano
2016-11-29 20:36 ` Johannes Schindelin
2016-11-29 20:49 ` Jeff King
2016-11-30 12:30 ` Johannes Schindelin
2016-11-30 12:35 ` Jeff King
2016-11-29 20:55 ` Junio C Hamano
2016-11-30 12:30 ` Johannes Schindelin
2016-12-01 23:33 ` Junio C Hamano
2016-12-05 10:36 ` Johannes Schindelin
2016-12-05 18:37 ` Junio C Hamano
2016-12-06 13:16 ` Johannes Schindelin
2016-12-06 13:36 ` Jeff King
2016-12-06 14:48 ` Johannes Schindelin
2016-12-06 15:09 ` Jeff King
2016-12-06 18:22 ` Stefan Beller
2016-12-06 18:35 ` Jeff King
2017-01-18 22:38 ` Brandon Williams
2016-11-30 16:02 ` Jakub Narębski
2016-11-30 18:39 ` Junio C Hamano
2016-11-24 20:55 ` [PATCH v3 2/2] difftool: implement the functionality in the builtin Johannes Schindelin
2016-11-25 21:24 ` Jakub Narębski
2016-11-27 11:10 ` Johannes Schindelin
2016-11-27 11:20 ` Jakub Narębski
2017-01-02 16:16 ` [PATCH v4 0/4] Show Git Mailing List: a builtin difftool Johannes Schindelin
2017-01-02 16:22 ` [PATCH v4 1/4] Avoid Coverity warning about unfree()d git_exec_path() Johannes Schindelin
2017-01-03 20:11 ` Stefan Beller
2017-01-03 21:33 ` Johannes Schindelin
2017-01-04 18:09 ` Stefan Beller
2017-01-04 1:13 ` Jeff King
2017-01-09 1:25 ` Junio C Hamano
2017-01-09 6:00 ` Jeff King
2017-01-09 7:49 ` Johannes Schindelin
2017-01-09 19:21 ` Stefan Beller
2017-01-02 16:22 ` [PATCH v4 2/4] difftool: add a skeleton for the upcoming builtin Johannes Schindelin
2017-01-02 16:22 ` [PATCH v4 3/4] difftool: implement the functionality in the builtin Johannes Schindelin
2017-01-02 16:24 ` [PATCH v4 4/4] t7800: run both builtin and scripted difftool, for now Johannes Schindelin
2017-01-09 1:38 ` Junio C Hamano
2017-01-09 7:56 ` Johannes Schindelin
2017-01-09 9:46 ` Junio C Hamano
2017-01-17 15:54 ` [PATCH v5 0/3] Turn the difftool into a builtin Johannes Schindelin
2017-01-17 15:54 ` [PATCH v5 1/3] difftool: add a skeleton for the upcoming builtin Johannes Schindelin
2017-01-17 15:55 ` [PATCH v5 2/3] difftool: implement the functionality in the builtin Johannes Schindelin
2017-01-17 15:55 ` [PATCH v5 3/3] Retire the scripted difftool Johannes Schindelin
2017-01-17 21:46 ` Junio C Hamano
2017-01-18 12:33 ` Johannes Schindelin
2017-01-18 19:15 ` Junio C Hamano
2017-01-19 16:30 ` Johannes Schindelin
2017-01-19 17:56 ` Junio C Hamano
2017-01-19 20:32 ` Johannes Schindelin
2017-01-17 21:31 ` [PATCH v5 0/3] Turn the difftool into a builtin Junio C Hamano
2017-01-19 20:30 ` [PATCH v6 " Johannes Schindelin
2017-01-19 20:30 ` [PATCH v6 1/3] difftool: add a skeleton for the upcoming builtin Johannes Schindelin
2017-01-19 20:30 ` [PATCH v6 2/3] difftool: implement the functionality in the builtin Johannes Schindelin
2017-01-19 20:30 ` [PATCH v6 3/3] Retire the scripted difftool Johannes Schindelin
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