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From: Jeff King <peff@peff.net>
To: Stefan Beller <sbeller@google.com>
Cc: David Turner <dturner@twopensource.com>,
	Shawn Pearce <spearce@spearce.org>,
	Junio C Hamano <gitster@pobox.com>,
	"git@vger.kernel.org" <git@vger.kernel.org>
Subject: Re: [PATCH/RFC 4/6] transport: add refspec list parameters to functions
Date: Wed, 27 Apr 2016 00:11:38 -0400	[thread overview]
Message-ID: <20160427041138.GA22920@sigill.intra.peff.net> (raw)
In-Reply-To: <CAGZ79kYGi9bhRfGype7te4cGkxvnKww269kYoykB+76HNnTarg@mail.gmail.com>

On Tue, Apr 26, 2016 at 08:59:22PM -0700, Stefan Beller wrote:

> > Maybe we can do a mix of 2 and 4:
> >
> >    1) HTTP grows more extensions; other protocols stagnate for now.
> >    2) Come up with a backwards-incompatible protocol v2, foccussed on
> >        capabilities negotiation phase, hitting alternative end points
> >        (non http only, or rather a subset of protocols only)
> >     3) if HTTP sees the benefits of the native protocol v2, we may switch
> >         HTTP, too
> >
> > (in time order of execution. Each point is decoupled from the others and may
> > be done by different people at different times.)
> >
> 
> Today I rebased protocol-v2[1] and it was fewer conflicts than expected.
> I am surprised by myself that there is even a test case for v2 already,
> so I think it is more progressed that I had in mind. Maybe we can do 1)
> for now and hope that the non http catches up eventually?

If the plan is something like:

  1. v2 exists, but client/server don't know when they should use it.

  2. smart-http grows an extra parameter for the client to say "hey, I
     know v2"

  3. Other protocols get some manual v2 support (e.g., client asks for
     "upload-pack2" if instructed by the user, server either speaks v2
     then or says "eh, what?").

I like that very much. It lets us "cheat" on the hard part of the
problem for http, which is what David's series is doing, but it provides
a clear path forward for the protocols eventually reaching feature
parity (namely that eventually all servers speak v2, and the client can
start asking for v2 by default).

-Peff

  reply	other threads:[~2016-04-27  4:11 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-15 19:19 [PATCH/RFC 0/6] fetch with refspec David Turner
2016-04-15 19:19 ` [PATCH/RFC 1/6] http-backend: use argv_array functions David Turner
2016-04-18 18:34   ` Junio C Hamano
2016-04-19 19:11     ` David Turner
2016-04-15 19:19 ` [PATCH/RFC 2/6] remote-curl.c: fix variable shadowing David Turner
2016-04-18 18:35   ` Junio C Hamano
2016-04-19 19:14     ` David Turner
2016-04-15 19:19 ` [PATCH/RFC 3/6] http-backend: handle refspec argument David Turner
2016-04-17  1:51   ` Eric Sunshine
2016-04-19 18:57     ` David Turner
2016-04-15 19:19 ` [PATCH/RFC 4/6] transport: add refspec list parameters to functions David Turner
2016-04-18 18:45   ` Junio C Hamano
2016-04-19  7:14     ` Jeff King
2016-04-19 18:04       ` Stefan Beller
2016-04-19 20:55       ` Junio C Hamano
2016-04-19 21:40       ` David Turner
2016-04-19 23:22         ` Jeff King
2016-04-19 23:43           ` David Turner
2016-04-20  1:17             ` Jeff King
2016-04-20 20:46               ` David Turner
2016-04-20 20:57                 ` Jeff King
2016-04-25 16:44                   ` David Turner
2016-04-25 22:10                     ` Stefan Beller
2016-04-27  3:59                       ` Stefan Beller
2016-04-27  4:11                         ` Jeff King [this message]
2016-04-27 15:07                           ` Junio C Hamano
2016-04-29 23:05                         ` David Turner
2016-04-29 23:12                           ` Stefan Beller
2016-04-19 19:31     ` David Turner
2016-04-15 19:19 ` [PATCH/RFC 5/6] fetch: pass refspec to http server David Turner
2016-04-17  2:33   ` Eric Sunshine
2016-04-19 21:25     ` David Turner
2016-04-15 19:19 ` [PATCH/RFC 6/6] clone: send refspec for single-branch clones David Turner
2016-04-17  2:36   ` Eric Sunshine
2016-04-19 21:24     ` David Turner
2016-04-15 19:30 ` [PATCH/RFC 0/6] fetch with refspec Stefan Beller

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