From: Jeff King <peff@peff.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: David Turner <dturner@twopensource.com>, git@vger.kernel.org
Subject: Re: [PATCH/RFC 4/6] transport: add refspec list parameters to functions
Date: Tue, 19 Apr 2016 03:14:03 -0400 [thread overview]
Message-ID: <20160419071403.GA22577@sigill.intra.peff.net> (raw)
In-Reply-To: <xmqqa8kq69i5.fsf@gitster.mtv.corp.google.com>
On Mon, Apr 18, 2016 at 11:45:54AM -0700, Junio C Hamano wrote:
> David Turner <dturner@twopensource.com> writes:
>
> > Add parameters for a list of refspecs to transport_get_remote_refs and
> > get_refs_list. These parameters are presently unused -- soon, we will
> > use them to implement fetches which only learn about a subset of refs.
> >
> > Signed-off-by: David Turner <dturner@twopensource.com>
> > ---
>
> What the code tries to do I am more than halfway happy. It is
> unfortunate that we cannot do this natively without upgrading the
> protocol in a fundamental way, but this is a nice way to work it
> around only for Git-over-HTTP transport without having to break the
> protocol.
I dunno, I am a bit negative on bringing new features to Git-over-HTTP
(which is already less efficient than the other protocols!) without any
plan for supporting them in the other protocols.
I thought Stefan's v2 protocol work looked quite good, but it seems to
have stalled. The hardest part of that topic is figuring out the upgrade
path. But for git-over-http, we can solve that in the same way that
David is passing in the extra refspecs.
So I'd rather see something like:
1. Support for v2 "capabilities only" initial negotiation, followed
by ref advertisement.
2. Support for refspec-limiting capability.
3. HTTP-only option from client to trigger v2 on the server.
That's still HTTP-specific, but it has a clear path for converging with
the ssh and git protocols eventually, rather than having to support
magic out-of-band capabilities forever.
It does require an extra round of HTTP request/response, though.
-Peff
next prev parent reply other threads:[~2016-04-19 7:14 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 [this message]
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
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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