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From: Jeff King <peff@peff.net>
To: "Shawn O. Pearce" <spearce@spearce.org>
Cc: Adam Megacz <adam@megacz.com>, git@vger.kernel.org
Subject: Re: "warning: Updating the currently checked out branch may cause confusion" on bare repositories
Date: Tue, 19 Jan 2010 17:43:44 -0500	[thread overview]
Message-ID: <20100119224343.GA11758@coredump.intra.peff.net> (raw)
In-Reply-To: <20100119185906.GF23466@spearce.org>

On Tue, Jan 19, 2010 at 10:59:06AM -0800, Shawn O. Pearce wrote:

> Adam Megacz <adam@megacz.com> wrote:
> > "Shawn O. Pearce" <spearce@spearce.org> writes:
> > > That should already be the case.  Did you create the bare repository
> > > by taking a copy of a non-bare's .git directory?  Check your bare
> > > repository's config file and see if core.bare = false, if so set
> > > it to true to signal it really is bare.
> > 
> > Hrm, is there a reason why this is explicitly configured rather than
> > detected?
> 
> I don't know why we do this.  I think its because the guessing
> logic can guess wrong sometimes.

Yup, although I am having trouble finding any actual discussion of when
it can go wrong. There is some mention here:

  http://article.gmane.org/gmane.comp.version-control.git/35993

and a little bit here in the 1.5.0 release notes:

  http://article.gmane.org/gmane.comp.version-control.git/39612

But the latter talks about the heuristic being "does it end with .git",
which I don't think we actually use anymore. So who knows if the
heuristic failures are even trigger-able anymore. I tried looking at the
setup code for an answer, but my eyes started bleeding from the horrible
spaghetti code and I couldn't make out any of the text.

> Its rare to see it fail.  But I think it can fail if you create
> a file called HEAD in the top level of your source code tree.
> (For example.)

I don't think that would do it. When looking for a git dir we check for
a well-formed HEAD, as well as objects and refs directories. The is_bare
check seems to be more about "did we actually find a workdir" these
days.

-Peff

      reply	other threads:[~2010-01-19 22:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-18 22:41 "warning: Updating the currently checked out branch may cause confusion" on bare repositories Adam Megacz
2010-01-19  6:29 ` Shawn O. Pearce
2010-01-19 18:55   ` Adam Megacz
2010-01-19 18:59     ` Shawn O. Pearce
2010-01-19 22:43       ` Jeff King [this message]

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