From: Nicolas Sebrecht <nicolas.s.dev@gmx.fr>
Date: Sun, 31 May 2009 17:39:32 GMT
Subject: Re: Resetting working files
Message-ID: <20090531173932.GA13856@vidovic>
In-Reply-To: <9719867c0905310950x153db8efw179a8a10ac3f4640@mail.gmail.com>

The 31/05/09, Aaron Gray wrote:

> > I still do not understand what index is.
> > 1. is index an replica of the committed tree
> > 2. is index only transient in that its content will be reset once
> >   committed?
> > 3. or other ?
> 
> I think index is HEAD or a revision hash. Am I correct ?

HEAD is a reference to a branch name:
$ cat .git/HEAD
ref: refs/heads/master
$

The branch name is a reference to a commit:
$ cat .git/refs/heads/master
a80aad7b85fc560451e07792d64ab6cb15a39914
$

The index is what will be committed by 'git commit'.

-- 
Nicolas Sebrecht