From: sf <sf-gmane@stephan-feder.de>
To: git@vger.kernel.org
Subject: Re: [RFC]: Pack-file object format for individual objects (Was: Revisiting large binary files issue.)
Date: Tue, 11 Jul 2006 23:45:33 +0200 [thread overview]
Message-ID: <44B41BFD.8010808@stephan-feder.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0607111053270.5623@g5.osdl.org>
Linus Torvalds wrote:
...
> On Tue, 11 Jul 2006, sf wrote:
...
>> Step 1. When reading individual objects from disk check the first nibble
>> and decode accordingly (see above).
>
> Check more than that, but yes, this should be tightened up in my
> series.
Just look at the first byte of the object file _without doing any
decompression_. It is 0x78 _if and only if_ the object file is in the
traditional format.
>> Step 3. Remove code for (old) individual object disk format.
>
> Well, I'm not sure how necessary that even is. We actually do have to
> generate the old header regardless, if for no other reason than the fact
> that we generate the SHA1 names based on it (even if we then write a
> new-style dense binary header to disk and discard the ASCII header).
>
> Having it there means that you can always just get a new version of git,
> and never worry about how old the archive you're working with is.
>
> (And then doing a "git repack -a -d" will make any archive also work with
> an old-style git, since the pack-file format didn't change, and a "git
> repack" thus ends up always creating something that is readable by
> anybody, including old clients).
Agreed.
Regards
Stephan
next prev parent reply other threads:[~2006-07-11 21:46 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-10 23:01 Revisiting large binary files issue Carl Baldwin
2006-07-10 23:14 ` Junio C Hamano
2006-07-11 6:20 ` Peter Baumann
2006-07-10 23:28 ` Linus Torvalds
2006-07-11 9:40 ` [RFC]: Pack-file object format for individual objects (Was: Revisiting large binary files issue.) sf
2006-07-11 18:00 ` Linus Torvalds
2006-07-11 21:45 ` sf [this message]
2006-07-11 22:17 ` Linus Torvalds
2006-07-11 22:26 ` Linus Torvalds
2006-07-11 14:55 ` Revisiting large binary files issue Carl Baldwin
2006-07-11 17:09 ` Linus Torvalds
2006-07-11 17:10 ` [PATCH 1/3] Make the unpacked object header functions static to sha1_file.c Linus Torvalds
2006-07-11 17:12 ` [PATCH 2/3] sha1_file: add the ability to parse objects in "pack file format" Linus Torvalds
2006-07-11 18:40 ` Johannes Schindelin
2006-07-11 18:58 ` Linus Torvalds
2006-07-11 19:20 ` Johannes Schindelin
2006-07-11 19:48 ` Linus Torvalds
2006-07-11 21:25 ` Johannes Schindelin
2006-07-11 21:47 ` Junio C Hamano
2006-07-11 21:24 ` sf
2006-07-11 22:09 ` Linus Torvalds
2006-07-11 22:25 ` sf
2006-07-11 23:03 ` Junio C Hamano
2006-07-12 0:03 ` Linus Torvalds
2006-07-12 0:39 ` Johannes Schindelin
2006-07-12 3:45 ` Linus Torvalds
2006-07-12 4:31 ` Linus Torvalds
2006-07-12 6:35 ` Junio C Hamano
2006-07-12 16:29 ` Linus Torvalds
2006-07-12 0:46 ` Junio C Hamano
2006-07-12 3:42 ` Linus Torvalds
2006-07-12 6:49 ` Peter Baumann
2006-07-12 7:16 ` Junio C Hamano
2006-07-12 8:28 ` Peter Baumann
2006-07-12 15:13 ` Linus Torvalds
2006-07-12 15:27 ` Junio C Hamano
2006-07-11 17:16 ` [PATCH 3/3] Enable the new binary header format for unpacked objects Linus Torvalds
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