From: Junio C Hamano <gitster@pobox.com>
Date: Sun, 01 Jul 2007 02:22:04 GMT
Subject: Re: [PATCH] git-clone: fetch possibly detached HEAD over dumb http
Message-ID: <7vy7i0amnn.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <20070630222336.GA2703@steel.home>

Alex Riesen <raa.lkml@gmail.com> writes:

> The check for .git validity includes checking if HEAD contains
> something sane, and this check is very simple: the HEAD is read
> (readlink(2) or plain read(2)) and tested if it contains a
> reference starting with "refs/", which maybe inconsistent with
> resolve_gitlink_ref, but probably ok.

Ah, I was not paying close attention to resolve_gitlink_ref();
if it does not require HEAD to point at refs/ I would say it is
a bug.

Come to think of it, I would further say that we probably should
tighten it up a bit: HEAD must be either a valid commit object
name (i.e. detached) or a ref that point at somewhere under
refs/heads hierarchy, not just anywhere in refs/.