From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 23 Nov 2016 18:18:56 GMT
Subject: Re: [PATCH 2/2] difftool: add a feature flag for the builtin vs scripted version
Message-ID: <xmqqd1hmm54f.fsf@gitster.mtv.corp.google.com>
In-Reply-To: <xmqqh96ym6x6.fsf@gitster.mtv.corp.google.com>

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.