From: "brian m. carlson" <sandals@crustytoothpaste.net>
To: Jeff King <peff@peff.net>
Cc: Gregory Anders <greg@gpanders.com>,
git@vger.kernel.org, Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH v5] git-send-email: use ! to indicate relative path to command
Date: Wed, 12 May 2021 00:51:04 +0000 [thread overview]
Message-ID: <YJsmeOjxd5VIbjoM@camp.crustytoothpaste.net> (raw)
In-Reply-To: <YJsi1jbtNFDRKXmq@coredump.intra.peff.net>
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On 2021-05-12 at 00:35:34, Jeff King wrote:
> On Wed, May 12, 2021 at 12:00:51AM +0000, brian m. carlson wrote:
>
> > > + specify a sendmail-like program instead, either by a full
> > > + path-name or by prefixing the program name with `!`. The
> > > + program must support the `-i` option. Default value can be
> > > + specified by the `sendemail.smtpServer` configuration option;
> > > + the built-in default is to search for `sendmail` in `/usr/sbin`,
> > > + `/usr/lib` and $PATH if such program is available, falling back
> > > + to `localhost` otherwise.
> >
> > Elsewhere we use the ! syntax we invoke the shell, and I would suggest
> > that we do the same here. That means we'll get PATH functionality by
> > default and we'll let people do a modicum of scripting if they like.
>
> Thanks for bringing that up. I agree it makes things more consistent
> with other uses of "!", and certainly it's more flexible. It does
> introduce an inconsistency with the absolute-path form, as I mentioned
> in https://lore.kernel.org/git/YJsiKDNbKclFU00b@coredump.intra.peff.net/.
>
> I don't know if that's a show-stopper or not. Certainly the
> documentation can explain the difference, but it's nice to keep the
> rules as simple as possible.
I think the minor incompatibility here is okay. It would have been
nicer to be able to avoid it, but hindsight is always 20/20.
> (My gut feeling is that consistency with other "!" places is more
> important than consistency with the absolute-path form).
Yeah, I think the shell here can be very useful, because it lets you
configure something once in .gitconfig and handle system
incompatibilities (a purely hypothetical example):
!f() { if [ "$(uname -s)" = Darwin ]; then sendmail "$@"; else postfix "$@"; fi; };f
People use this functionality all the time in other places: credential
helpers, editors (use a fancy graphical editor if supported, otherwise
Vim), and various other places we allow this syntax.
--
brian m. carlson (he/him or they/them)
Houston, Texas, US
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next prev parent reply other threads:[~2021-05-12 0:51 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-11 19:15 [PATCH v3] git-send-email: use ! to indicate relative path to command Gregory Anders
2021-05-11 19:24 ` Jeff King
2021-05-11 20:40 ` [PATCH v4] " Gregory Anders
2021-05-11 21:39 ` Jeff King
2021-05-11 22:18 ` Gregory Anders
2021-05-11 23:09 ` Junio C Hamano
2021-05-11 23:49 ` [PATCH v5] " Gregory Anders
2021-05-12 0:00 ` brian m. carlson
2021-05-12 0:35 ` Jeff King
2021-05-12 0:45 ` Gregory Anders
2021-05-12 0:49 ` Jeff King
2021-05-12 3:29 ` Junio C Hamano
2021-05-12 0:51 ` brian m. carlson [this message]
2021-05-11 20:03 ` [PATCH v3] " Felipe Contreras
2021-05-11 20:42 ` Gregory Anders
2021-05-11 22:07 ` Felipe Contreras
2021-05-11 22:19 ` Gregory Anders
2021-05-12 0:47 ` Jeff King
2021-05-12 1:08 ` Felipe Contreras
2021-05-12 1:24 ` Jeff King
2021-05-12 1:52 ` Felipe Contreras
2021-05-12 1:58 ` Gregory Anders
2021-05-12 4:17 ` Felipe Contreras
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