From: Jeff King <peff@peff.net>
Date: Fri, 30 Nov 2012 19:55:09 GMT
Subject: Re: [PATCH] fsck: warn about ".git" in trees
Message-ID: <20121130195509.GA8591@sigill.intra.peff.net>
In-Reply-To: <50B90E11.8090501@web.de>

On Fri, Nov 30, 2012 at 08:50:41PM +0100, Torsten Bögershausen wrote:

> >Having a ".git" entry inside a tree can cause confusing
> >results on checkout. At the top-level, you could not
> >checkout such a tree, as it would complain about overwriting
> >the real ".git" directory. In a subdirectory, you might
> >check it out, but performing operations in the subdirectory
> >would confusingly consider the in-tree ".git" directory as
> >the repository.
> [snip]
> >+	int has_dotgit = 0;
> 
> Name like "." or ".." are handled as directories by the OS.

Right. In theory git could run on a system that does not treat them
specially, but in practice they are going to be problematic on most
systems.

> ".git" could be a file or a directory, at least in theory, and from
> the OS point of view, but we want to have this as a reserved name.

Exactly.

> Looking at bad directory names, which gives trouble when checking out:
> 
> Should we check for "/" or "../blabla" as well?

We do already (the error is "contains full pathnames"). We also cover
empty pathnames and some other cases.

-Peff