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From: Michael Haggerty <mhagger@alum.mit.edu>
To: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Thomas Rast <trast@inf.ethz.ch>,
	git@vger.kernel.org, Junio C Hamano <gitster@pobox.com>,
	Antoine Pelisse <apelisse@gmail.com>,
	Johannes Schindelin <johannes.schindelin@gmx.de>
Subject: Re: [PATCH 4/4] fast-import: only store commit objects
Date: Tue, 07 May 2013 08:47:06 +0200	[thread overview]
Message-ID: <5188A36A.8000408@alum.mit.edu> (raw)
In-Reply-To: <CAMP44s3vGKv-Z6sx0sjAPH7_U1+AiJjFHjKz8ke+EUqW-u2Y=A@mail.gmail.com>

On 05/07/2013 06:47 AM, Felipe Contreras wrote:
> On Mon, May 6, 2013 at 10:27 PM, Michael Haggerty <mhagger@alum.mit.edu> wrote:
> 
>> You conjectured earlier that nobody uses blob marks, and I provided a
>> counterexample.  Then you proposed a workaround that would require
>> changes to the cvs2git documentation, and I even explained how your
>> proposed workaround is not as flexible as the status quo.
> 
> cvs2git does *not* need blob marks, it does not need marks at all.
> 
> The use-case that you mentioned has nothing to do with cvs2git, in
> fact. I can be described as this:
> 
> % ./generate-blobs > blobs
> % git fast-import --export-marks=marks < blobs
> % ./generate-commits > commits
> % git fast-import --import-marks=marks < commits
> 
> In this example 'generate-commits' has no notion of marks at all, and
> 'git fast-import' doesn't need marks to process both blobs and
> commits.

The "generate-blobs" program generates a mark for each blob and
remembers the marks in a database.  The "generate-commits" program reads
the marks from the database and incorporates them in the definitions of
the commits that it writes to its output.  So yes, the program pair
*does* rely on marks for blobs being exported correctly.

I've tired of this discussion.  I am quite sure that your change will
not be accepted, so I see no need to participate further.  Please do not
interpret my silence as agreement with your quarrelsome arguments.

Michael

-- 
Michael Haggerty
mhagger@alum.mit.edu
http://softwareswirl.blogspot.com/

  reply	other threads:[~2013-05-07  6:47 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-03  4:31 [PATCH 0/4] fast-export: speed improvements Felipe Contreras
2013-05-03  4:31 ` [PATCH 1/4] fast-{import,export}: use get_sha1_hex() directly Felipe Contreras
2013-05-03 21:50   ` Junio C Hamano
2013-05-03  4:31 ` [PATCH 2/4] fast-export: improve speed by skipping blobs Felipe Contreras
2013-05-03 21:51   ` Junio C Hamano
2013-05-03  4:31 ` [PATCH 3/4] fast-export: don't parse all the commits Felipe Contreras
2013-05-03 21:54   ` Junio C Hamano
2013-05-04  0:06     ` Felipe Contreras
2013-05-04 19:22       ` Junio C Hamano
2013-05-03  4:31 ` [PATCH 4/4] fast-import: only store commit objects Felipe Contreras
2013-05-03 17:56   ` Thomas Rast
2013-05-03 18:23     ` Felipe Contreras
2013-05-06 10:28       ` Michael Haggerty
2013-05-06 10:32         ` Thomas Rast
2013-05-06 10:45           ` Michael Haggerty
2013-05-06 15:18             ` Junio C Hamano
2013-05-06 21:19               ` Felipe Contreras
2013-05-06 21:36                 ` Felipe Contreras
2013-05-07  3:14                   ` Michael Haggerty
2013-05-07  4:32                     ` Johannes Schindelin
2013-05-07  4:36                       ` Felipe Contreras
2013-05-07  2:58                 ` Michael Haggerty
2013-05-07  4:37                   ` Felipe Contreras
2013-05-06 21:04             ` Felipe Contreras
2013-05-07  3:27               ` Michael Haggerty
2013-05-07  4:39                 ` Johannes Schindelin
2013-05-07  4:49                   ` Felipe Contreras
2013-05-07  4:47                 ` Felipe Contreras
2013-05-07  6:47                   ` Michael Haggerty [this message]
2013-05-07  7:07                     ` Felipe Contreras
2013-05-07  7:12                 ` Junio C Hamano
2013-05-07  7:34                   ` Michael Haggerty
2013-05-06 12:20           ` Johannes Schindelin
2013-05-06 21:06             ` Felipe Contreras
2013-05-03 22:08     ` Junio C Hamano
2013-05-03 22:19       ` Felipe Contreras
2013-05-03 23:45         ` Junio C Hamano
2013-05-04  0:01           ` Felipe Contreras

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