From: Jakub Narebski <jnareb@gmail.com>
To: git@vger.kernel.org
Subject: Re: Exact format of tree objets
Date: Wed, 12 Jun 2013 14:06:24 +0000 (UTC) [thread overview]
Message-ID: <loom.20130612T160455-551@post.gmane.org> (raw)
In-Reply-To: 7v4nd4bigv.fsf@alter.siamese.dyndns.org
Junio C Hamano <gitster <at> pobox.com> writes:
> Chico Sokol <chico.sokol <at> gmail.com> writes:
>
> > Is there any official documentation of tree objets format? Are tree
> > objects encoded specially in some way? How can I parse the inflated
> > contents of a tree object?
> >
> > We're suspecting that there is some kind of special format or
> > encoding, because the command "git cat-file -p <sha>" show me ...
> > While "git cat-file tree <sha>" generate ...
>
> "cat-file -p" is meant to be human-readable form. The latter gives
> the exact byte contents read_sha1_file() sees, which is a binary
> format. Essentially, it is a sequence of:
>
> - mode of the entry encoded in octal, without any leading '0' pad;
> - pathname component of the entry, terminated with NUL;
> - 20-byte SHA-1 object name.
I always wondered why this is the sole object format where SHA-1 is in 20-
byte binary format and not 40-chars hexadecimal string format...
--
Jakub Narębski
next prev parent reply other threads:[~2013-06-12 14:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-11 16:25 Exact format of tree objets Chico Sokol
2013-06-11 18:26 ` Ilari Liusvaara
2013-06-18 15:15 ` Chico Sokol
2013-06-18 17:47 ` Thomas Rast
2013-06-11 18:38 ` Junio C Hamano
2013-06-12 14:06 ` Jakub Narebski [this message]
2013-06-18 13:53 ` Chico Sokol
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