From: Brandon Williams <bmwill@google.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org
Subject: Re: [WIP 06/15] transport: use get_refs_via_connect to get refs
Date: Thu, 7 Dec 2017 10:40:09 -0800 [thread overview]
Message-ID: <20171207184009.GA152943@google.com> (raw)
In-Reply-To: <xmqqmv2vfqxh.fsf@gitster.mtv.corp.google.com>
On 12/06, Junio C Hamano wrote:
> Brandon Williams <bmwill@google.com> writes:
>
> > Remove code duplication and use the existing 'get_refs_via_connect()'
> > function to retrieve a remote's heads in 'fetch_refs_via_pack()' and
> > 'git_transport_push()'.
> >
> > Signed-off-by: Brandon Williams <bmwill@google.com>
> > ---
> > transport.c | 18 ++++--------------
> > 1 file changed, 4 insertions(+), 14 deletions(-)
> >
> > diff --git a/transport.c b/transport.c
> > index d75ff0514..7c969f285 100644
> > --- a/transport.c
> > +++ b/transport.c
> > @@ -230,12 +230,8 @@ static int fetch_refs_via_pack(struct transport *transport,
> > args.cloning = transport->cloning;
> > args.update_shallow = data->options.update_shallow;
> >
> > - if (!data->got_remote_heads) {
> > - connect_setup(transport, 0);
> > - get_remote_heads(data->fd[0], NULL, 0, &refs_tmp, 0,
> > - NULL, &data->shallow);
> > - data->got_remote_heads = 1;
> > - }
> > + if (!data->got_remote_heads)
> > + refs_tmp = get_refs_via_connect(transport, 0);
>
> The updated version is equivalent to the original as long as
> transport->data->extra_have is empty at this point. Were we
> deliberately sending NULL, instead of &data->extra_have, in the
> original, or is it a mere oversight?
>
> The same comment applies to the other hunk of this patch.
extra_have is only ever used by the push logic, so they're shouldn't be
any harm is passing it through on the fetch side, especially since
upload-pack doesn't send .have lines.
The push side is what uses the .have lines. From a quick look through
the code it seems like get_refs_via_connect is always called before
git_transport_push, so the extra check to make sure ref's have been
retrieved doesn't get executed. But if it ever did get executed, we
would silently ignore a server's .have lines.
--
Brandon Williams
next prev parent reply other threads:[~2017-12-07 18:41 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-20 17:18 [RFC] protocol version 2 Brandon Williams
2017-10-24 6:48 ` Junio C Hamano
2017-10-24 18:35 ` Brandon Williams
2017-10-25 1:22 ` Junio C Hamano
2017-10-26 0:59 ` Junio C Hamano
2017-10-25 13:09 ` Derrick Stolee
2017-10-25 18:10 ` Brandon Williams
2017-10-28 22:57 ` Philip Oakley
2017-10-31 18:42 ` Brandon Williams
2017-11-10 20:13 ` Jonathan Tan
2017-12-04 23:58 ` [WIP 00/15] " Brandon Williams
2017-12-04 23:58 ` [WIP 01/15] pkt-line: introduce packet_read_with_status Brandon Williams
2017-12-07 20:53 ` Stefan Beller
2017-12-08 18:03 ` Brandon Williams
2017-12-04 23:58 ` [WIP 02/15] pkt-line: introduce struct packet_reader Brandon Williams
2017-12-07 22:01 ` Stefan Beller
2017-12-08 18:11 ` Brandon Williams
2017-12-04 23:58 ` [WIP 03/15] pkt-line: add delim packet support Brandon Williams
2017-12-07 22:30 ` Stefan Beller
2017-12-08 20:08 ` Brandon Williams
2017-12-04 23:58 ` [WIP 04/15] upload-pack: convert to a builtin Brandon Williams
2017-12-06 21:59 ` Junio C Hamano
2017-12-07 16:14 ` Johannes Schindelin
2017-12-08 20:26 ` Junio C Hamano
2017-12-08 20:12 ` Brandon Williams
2017-12-04 23:58 ` [WIP 05/15] upload-pack: factor out processing lines Brandon Williams
2017-12-04 23:58 ` [WIP 06/15] transport: use get_refs_via_connect to get refs Brandon Williams
2017-12-06 22:10 ` Junio C Hamano
2017-12-07 18:40 ` Brandon Williams [this message]
2017-12-04 23:58 ` [WIP 07/15] connect: convert get_remote_heads to use struct packet_reader Brandon Williams
2017-12-06 22:39 ` Junio C Hamano
2017-12-08 20:19 ` Brandon Williams
2017-12-04 23:58 ` [WIP 08/15] connect: discover protocol version outside of get_remote_heads Brandon Williams
2017-12-07 18:50 ` Junio C Hamano
2017-12-07 19:04 ` Brandon Williams
2017-12-07 19:30 ` Junio C Hamano
2017-12-08 20:11 ` Brandon Williams
2017-12-04 23:58 ` [WIP 09/15] transport: store protocol version Brandon Williams
2017-12-04 23:58 ` [WIP 10/15] protocol: introduce enum protocol_version value protocol_v2 Brandon Williams
2017-12-04 23:58 ` [WIP 11/15] serve: introduce git-serve Brandon Williams
2017-12-07 23:42 ` Junio C Hamano
2017-12-08 20:25 ` Brandon Williams
2017-12-04 23:58 ` [WIP 12/15] ls-refs: introduce ls-refs server command Brandon Williams
2017-12-13 16:30 ` Philip Oakley
2017-12-04 23:58 ` [WIP 13/15] connect: request remote refs using v2 Brandon Williams
2017-12-04 23:58 ` [WIP 14/15] upload_pack: introduce fetch server command Brandon Williams
2017-12-04 23:58 ` [WIP 15/15] fetch-pack: perform a fetch using v2 Brandon Williams
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