From: Linus Torvalds <torvalds@linux-foundation.org>
To: Scott Chacon <schacon@gmail.com>
Cc: git list <git@vger.kernel.org>
Subject: Re: Git Community Book
Date: Fri, 5 Sep 2008 13:27:43 -0700 (PDT) [thread overview]
Message-ID: <alpine.LFD.1.10.0809051317510.3117@nehalem.linux-foundation.org> (raw)
In-Reply-To: <d411cc4a0809051208k2a15c4a7te09a6979929e52f7@mail.gmail.com>
On Fri, 5 Sep 2008, Scott Chacon wrote:
>
> http://book.git-scm.com/7_the_packfile.html
The checksums in the index file "trailers" are all claiming to be 4 bytes,
and that's wrong - they're full SHA1 sums at 20 bytes each.
The v2 pack-file _also_ has per-object CRC's, and those are indeed just 4
bytes each, and are correctly listed as such.
The pack-file itself also has a few more things there, it's not just the
"PACK" string and then the objects. It has two more 32-bit words: a pack
file version number and the number of entries in the pack-file (all
network byte order). It also has its own checksum at the end (20-byte SHA1
again).
But looks good otherwise from a quick look.
Linus
next prev parent reply other threads:[~2008-09-05 20:29 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-05 19:08 Git Community Book Scott Chacon
2008-09-05 19:15 ` Thomas Adam
2008-09-05 20:45 ` Scott Chacon
2008-09-05 19:41 ` Junio C Hamano
2008-09-05 21:34 ` Scott Chacon
2008-09-05 22:09 ` Felipe Contreras
2008-09-06 6:33 ` Shawn O. Pearce
2008-09-06 18:14 ` Scott Chacon
2008-09-05 20:27 ` Linus Torvalds [this message]
2008-09-06 0:48 ` Stephan Beyer
2008-09-06 18:26 ` Christos Τrochalakis
-- strict thread matches above, loose matches on Subject: below --
2008-07-29 16:20 Scott Chacon
2008-07-29 16:28 ` Miklos Vajna
2008-07-29 17:09 ` Petr Baudis
2008-07-29 18:30 ` Scott Chacon
2008-07-29 18:42 ` Junio C Hamano
2008-07-29 19:00 ` Julian Phillips
2008-07-29 19:09 ` Junio C Hamano
2008-07-29 19:34 ` Scott Chacon
2008-07-29 19:57 ` Junio C Hamano
2008-07-30 21:39 ` J. Bruce Fields
2008-07-29 17:43 ` Junio C Hamano
2008-07-29 18:25 ` Junio C Hamano
2008-07-29 19:29 ` Scott Chacon
2008-07-29 19:24 ` Scott Chacon
2008-07-29 22:34 ` Daniel Barkalow
2008-07-29 22:47 ` Junio C Hamano
2008-07-30 13:20 ` Bart Trojanowski
2008-07-30 18:27 ` Junio C Hamano
2008-07-30 13:31 ` Bart Trojanowski
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