From: Jonathan Tan <jonathantanmy@google.com>
To: sbeller@google.com
Cc: jonathantanmy@google.com, git@vger.kernel.org
Subject: Re: [PATCH on sb/more-repo-in-api] revision: use commit graph in get_reference()
Date: Thu, 6 Dec 2018 15:36:26 -0800 [thread overview]
Message-ID: <20181206233626.144072-1-jonathantanmy@google.com> (raw)
In-Reply-To: <CAGZ79kYOOk2ODYgRcSZgDUqBfx2HeywnEGpbJB9BrrVzEUi_JA@mail.gmail.com>
> > This is on sb/more-repo-in-api because I'm using the repo_parse_commit()
> > function.
>
> This is a mere nicety, not strictly required.
> Before we had parse_commit(struct commit *) which would accomplish the
> same, (and we'd still have that afterwards as a #define falling back onto
> the_repository). As the function get_reference() is not the_repository safe
> as it contains a call to is_promisor_object() that is repository
> agnostic, I think
> it would be fair game to not depend on that series. I am not
> complaining, though.
Good point - I'll base the next version on master (and add a TODO
explaining which functions are not yet converted).
> AFAICT oid_object_info doesn't take advantage of the commit graph,
> but just looks up the object header, which is still less than completely
> parsing it. Then lookup_commit is overly strict, as it may return
> NULL as when there still is a type mismatch (I don't think a mismatch
> could happen here, as both rely on just the object store, and not the
> commit graph.), so this would be just defensive programming for
> the sake of it. I dunno.
>
> struct commit *c;
>
> if (oid_object_info(revs->repo, oid, NULL) == OBJ_COMMIT &&
> (c = lookup_commit(revs->repo, oid)) &&
> !repo_parse_commit(revs->repo, c))
> object = (struct object *) c;
> else
> object = parse_object(revs->repo, oid);
I like this way better - I'll do it in the next version.
next prev parent reply other threads:[~2018-12-06 23:36 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-04 22:42 [PATCH on sb/more-repo-in-api] revision: use commit graph in get_reference() Jonathan Tan
2018-12-04 23:12 ` Stefan Beller
2018-12-06 23:36 ` Jonathan Tan [this message]
2018-12-07 13:49 ` Derrick Stolee
2018-12-05 4:54 ` Jeff King
2018-12-06 23:54 ` Jonathan Tan
2018-12-07 8:53 ` Jeff King
2018-12-05 23:15 ` Junio C Hamano
2018-12-07 21:50 ` [PATCH on master v2] " Jonathan Tan
2018-12-09 0:51 ` Junio C Hamano
2018-12-09 1:49 ` Junio C Hamano
2018-12-11 10:54 ` Jeff King
2018-12-12 19:58 ` Jonathan Tan
2018-12-13 1:27 ` Jeff King
2018-12-13 16:20 ` Derrick Stolee
2018-12-13 18:54 ` [PATCH v3] " Jonathan Tan
2018-12-14 3:20 ` Junio C Hamano
2018-12-14 8:45 ` Jeff King
2019-01-25 15:33 ` Regression in: [PATCH on sb/more-repo-in-api] " SZEDER Gábor
2019-01-25 19:56 ` Stefan Beller
2019-01-25 22:01 ` Jonathan Tan
2019-01-25 22:14 ` SZEDER Gábor
2019-01-25 22:21 ` SZEDER Gábor
2019-01-27 13:08 ` [PATCH] object_as_type: initialize commit-graph-related fields of 'struct commit' SZEDER Gábor
2019-01-27 13:28 ` SZEDER Gábor
2019-01-27 18:40 ` Derrick Stolee
2019-01-28 16:15 ` Jeff King
2019-01-28 16:57 ` Jonathan Tan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181206233626.144072-1-jonathantanmy@google.com \
--to=jonathantanmy@google.com \
--cc=git@vger.kernel.org \
--cc=sbeller@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).