Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 22 Oct 2019 19:01:27 +0000
From:   Eric Wong <e@80x24.org>
To:     Vegard Nossum <vegard.nossum@oracle.com>
Cc:     Willy Tarreau <w@1wt.eu>, "Theodore Y. Ts'o" <tytso@mit.edu>,
        Santiago Torres Arias <santiago@nyu.edu>,
        workflows@vger.kernel.org, Git Mailing List <git@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Subject: Re: email as a bona fide git transport
Message-ID: <20191022190127.GA697@dcvr>
References: <b9fb52b8-8168-6bf0-9a72-1e6c44a281a5@oracle.com>
 <20191016111009.GE13154@1wt.eu>
 <20191016144517.giwip4yuaxtcd64g@LykOS.localdomain>
 <56664222-6c29-09dc-ef78-7b380b113c4a@oracle.com>
 <20191018161547.GG21137@mit.edu>
 <de49fe5e-85cb-9fb0-f9f4-c294d72e356c@oracle.com>
 <20191018191456.GI21137@mit.edu>
 <20191020031716.GA17475@1wt.eu>
 <1a259d8d-b3d1-b64e-07c3-ba143b42c442@oracle.com>
 <de6dd8b5-5c28-d0b2-d3fc-e72a6d643105@oracle.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <de6dd8b5-5c28-d0b2-d3fc-e72a6d643105@oracle.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Vegard Nossum <vegard.nossum@oracle.com> wrote:
> I sent v2 of the patches (with metadata _after_ the diff) to the git
> list here:
> 
> https://public-inbox.org/git/20191022114518.32055-1-vegard.nossum@oracle.com/T/#u
> 
> As I wrote in there, we could already today start using
> 
>    git am --message-id
> 
> when applying patches and this would provide something that a bot could
> annotate with git notes pointing to lore/LKML/LWN/whatever. I think that
> would already be a pretty nice improvement over today's situation.
> 
> Sadly, since the beginning of 2018, this was only used for a measly
> ~0.14% of all non-merge commits in the kernel:

--message-id helps provide a concrete reference, yes.  However,
being able to search for commit subjects in the mail archives is
already implemented via cgit filter.  An example is here:

https://80x24.org/mirrors/git.git/commit/?id=8da56a484800023a545d7a7c022473f5aa9e720f

The link at "userdiff: fix some corner cases in dts regex" makes a link to:

https://public-inbox.org/git/?x=t&q=%22userdiff:+fix+some+corner+cases+in+dts+regex%22
(side note: not sure if that "x=t" to expand the whole message is good...)

That link is generated by examples/cgit-commit-filter.lua in the
 public-inbox source:

https://public-inbox.org/meta/1677253/s/?b=examples/cgit-commit-filter.lua

My longer term plan is to be able to use the post-image blob OIDs
from cgit to generate a search query for public-inbox such as:

https://public-inbox.org/git/?q=dfpost:afc6b5b404+dfpost:072d58b69d+dfpost:4353b8220c+dfpost:333a625c70+dfpost:e187d356f6

Which finds all versions of the userdiff patch posted.  But AFAIK
there's no easy way to get at blob OIDs from cgit to a Lua filter...