From: Sam Vilain <sam@vilain.net>
To: Jonathan Nieder <jrnieder@gmail.com>
Cc: Sverre Rabbelier <srabbelier@gmail.com>,
git@vger.kernel.org, "Shawn O. Pearce" <spearce@spearce.org>,
David Barr <david.barr@cordelta.com>,
Ramkumar Ramachandra <artagnon@gmail.com>
Subject: Re: [WIP/PATCH] Teach fast-import to print the id of each imported commit
Date: Sun, 04 Jul 2010 15:44:04 +1200 [thread overview]
Message-ID: <1278215044.13014.33.camel@denix> (raw)
In-Reply-To: <20100704003543.GA25858@burratino>
On Sat, 2010-07-03 at 19:35 -0500, Jonathan Nieder wrote:
> Sam Vilain wrote:
>
> > It should be very simple to implement --batch-verify as well, which is
> > essentially the same thing, just only printing the header and not the
> > contents.
> >
> > How hard do you think it would be to implement a 'rev-parse' command?
> > Perhaps you can see where this is going... :-)
>
> Well, I think I understand what you are saying, but it’s not quite
> like that. fast-import is already doing a lot of work to keep track
> of this collection of objects in a pack that is not yet accessible to
> git because its index has not been written yet.
[...]
> Or one can teach fast-import to supply exactly what we need from it,
> which is the raw content of some blobs (and perhaps trees) it has
> written to pack and not indexed yet.
Let me explain further. If in fast-import.c:new_object, if it were to
make a struct object (see object.h), and make sure it was put in
obj_hash (see object.c, particularly create_object()), then you might
find a whole load of plumbing would magically start working and be able
to work with the new objects that you are trying to load. Of course
there may be a couple of other functions which might need to change.
Primarily object.c:read_object, which needs to be able to check the
packfile being spooled by git fast-import.
If you did this, then to implement this feature you could in principle
just call read_sha1_file()
Sam
next prev parent reply other threads:[~2010-07-04 3:43 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-01 3:18 [PATCH/RFC] Teach fast-import to import subtrees named by tree id Jonathan Nieder
2010-07-01 5:48 ` [WIP/PATCH] Teach fast-import to print the id of each imported commit Jonathan Nieder
2010-07-02 3:16 ` Sverre Rabbelier
2010-07-02 3:41 ` Jonathan Nieder
2010-07-02 4:29 ` Sverre Rabbelier
2010-07-02 5:12 ` Jonathan Nieder
2010-07-02 14:55 ` Sverre Rabbelier
2010-07-02 15:40 ` Jonathan Nieder
2010-07-02 15:48 ` Sverre Rabbelier
2010-07-04 0:02 ` Sam Vilain
2010-07-04 0:35 ` Jonathan Nieder
2010-07-04 3:44 ` Sam Vilain [this message]
2010-07-04 7:22 ` Jonathan Nieder
2010-08-17 17:02 ` Ramkumar Ramachandra
2010-09-05 3:15 ` [RFC/PATCH 0/3] fast-import: give importers access to the object store Jonathan Nieder
2010-09-05 3:22 ` [PATCH 1/3] t9300 (fast-import): style tweaks Jonathan Nieder
2010-09-24 6:59 ` [PATCH/RFC 00/24] " Jonathan Nieder
2010-09-24 7:04 ` [PATCH 01/24] t9300 (fast-import): avoid exiting early on failure Jonathan Nieder
2010-09-24 7:05 ` [PATCH 02/24] t9300 (fast-import): avoid hard-coded object names Jonathan Nieder
2010-09-24 7:09 ` [PATCH 03/24] t9300 (fast-import): guard "export large marks" test setup Jonathan Nieder
2010-09-24 9:38 ` Ramkumar Ramachandra
2010-09-24 10:56 ` Raja R Harinath
2010-09-24 10:34 ` Ramkumar Ramachandra
2010-09-24 11:01 ` Raja R Harinath
2010-09-24 7:11 ` [PATCH 04/24] t9300 (fast-import): check exit status from upstream of pipes Jonathan Nieder
2010-09-24 7:11 ` [PATCH 05/24] t9300 (fast-import): check exit status from command substitutions Jonathan Nieder
2010-09-24 7:12 ` [PATCH 06/24] t9300 (fast-import): use test_cmp in place of test $(foo) = $(bar) Jonathan Nieder
2010-09-24 7:13 ` [PATCH 07/24] t9300 (fast-import): use tabs to indent Jonathan Nieder
2010-09-24 8:54 ` Ramkumar Ramachandra
2010-09-24 9:21 ` Jonathan Nieder
2010-09-24 7:16 ` [PATCH 08/24] t9300 (fast-import), series A: re-indent Jonathan Nieder
2010-09-24 7:22 ` Sverre Rabbelier
2010-09-24 7:35 ` Jonathan Nieder
2010-09-24 7:18 ` [PATCH 09/24] t9300 (fast-import), series B: re-indent Jonathan Nieder
2010-09-24 7:19 ` [PATCH 10/24] t9300 (fast-import), series C: re-indent Jonathan Nieder
2010-09-24 7:19 ` [PATCH 11/24] t9300 (fast-import), series D: re-indent Jonathan Nieder
2010-09-24 7:21 ` [PATCH 12/24] t9300 (fast-import), series E: re-indent Jonathan Nieder
2010-09-24 7:22 ` [PATCH 13/24] t9300 (fast-import), series F: re-indent Jonathan Nieder
2010-09-24 7:22 ` [PATCH 14/24] t9300 (fast-import), series H: re-indent Jonathan Nieder
2010-09-24 7:23 ` [PATCH 15/24] t9300 (fast-import), series I: re-indent Jonathan Nieder
2010-09-24 7:24 ` [PATCH 16/24] t9300 (fast-import), series J: re-indent Jonathan Nieder
2010-09-24 7:25 ` [PATCH 17/24] t9300 (fast-import), series K: re-indent Jonathan Nieder
2010-09-24 7:25 ` [PATCH 18/24] t9300 (fast-import), series L: re-indent Jonathan Nieder
2010-09-24 7:26 ` [PATCH 19/24] t9300 (fast-import), series M: re-indent Jonathan Nieder
2010-09-24 7:26 ` [PATCH 20/24] t9300 (fast-import), series N: re-indent Jonathan Nieder
2010-09-24 7:27 ` [PATCH 21/24] t9300 (fast-import), series O: re-indent Jonathan Nieder
2010-09-24 7:27 ` [PATCH 22/24] t9300 (fast-import), series P: re-indent Jonathan Nieder
2010-09-24 7:28 ` [PATCH 23/24] t9300 (fast-import), series Q: re-indent Jonathan Nieder
2010-09-24 7:30 ` [PATCH 24/24] t9300 (fast-import), series R: re-indent Jonathan Nieder
2010-09-25 5:19 ` svn-fe status Jonathan Nieder
2010-09-25 10:25 ` Sverre Rabbelier
2010-09-27 2:54 ` Jonathan Nieder
2010-09-27 9:15 ` Sverre Rabbelier
2010-09-05 3:29 ` [PATCH 2/3] Teach fast-import to print the id of each imported commit Jonathan Nieder
2010-09-05 3:41 ` [PATCH 3/3] fast-import: Let importers retrieve the objects being written Jonathan Nieder
2010-09-05 6:08 ` [RFC/PATCH 0/3] fast-import: give importers access to the object store Ramkumar Ramachandra
2010-09-05 6:28 ` Sverre Rabbelier
2010-09-05 8:47 ` Ramkumar Ramachandra
2010-09-05 16:20 ` Sverre Rabbelier
2010-09-05 17:31 ` Jonathan Nieder
2010-09-08 3:13 ` [PATCH 4/3] fast-import: typofix Jonathan Nieder
2010-09-08 3:17 ` [PATCH 5/3] fast-import: allow cat command with empty path Jonathan Nieder
2010-09-08 3:27 ` [PATCH 6/3] fast-import: Allow cat requests at arbitrary points in stream Jonathan Nieder
2010-09-08 3:38 ` Sverre Rabbelier
2010-09-08 3:57 ` Jonathan Nieder
2010-09-08 10:16 ` Ramkumar Ramachandra
2010-09-16 0:14 ` [RFC/PATCH 0/3] fast-import: give importers access to the object store Sam Vilain
2010-09-17 23:24 ` Sverre Rabbelier
2010-09-24 19:43 ` Jonathan Nieder
2010-09-24 23:44 ` Sverre Rabbelier
2010-09-25 0:01 ` Jonathan Nieder
2010-09-25 0:17 ` Sverre Rabbelier
2010-07-02 3:20 ` [PATCH/RFC] Teach fast-import to import subtrees named by tree id Sverre Rabbelier
2010-07-02 4:42 ` Jonathan Nieder
2010-07-02 12:44 ` Ramkumar Ramachandra
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