From: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Date: Thu, 02 Sep 2010 22:49:45 GMT
Subject: Re: simple example for git hooks
Message-ID: <AANLkTimEo=sV=bKHyuQ5Md_7uQ0jAFKx+=dv4+KK+oD7@mail.gmail.com>
In-Reply-To: <i5p96s$u7q$1@dough.gmane.org>

On Thu, Sep 2, 2010 at 22:41, Gelonida <gelonida@gmail.com> wrote:

> Is there any clear documentation about hich git commands I'm allowed to
> use during a trigger script and which ones I can't

It's just a program that's run at a certain point, and its exit status
determines if git proceeds.

So you can use any git command, but of course what you might affect
what's about to be commited.

For a pre-commit hook (IIRC) you should find the stuff to be commited
in the index, finding a list of things that changed from a hook is
just a matter of diffing HEAD against the contents of the index then.