From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: What's the ".git/gitdir" file?
Date: Tue, 27 Oct 2015 15:54:07 -0700
Message-ID: <xmqqpozzncs0.fsf@gitster.mtv.corp.google.com>
References: <87a8r4ary9.fsf@kyleam.com>
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Cc: git@vger.kernel.org,
	=?utf-8?B?Tmd1eeG7hW4gVGjDoWkgTmfhu41j?= Duy <pclouds@gmail.com>,
	Eric Sunshine <sunshine@sunshineco.com>
To: Kyle Meyer <kyle@kyleam.com>
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In-Reply-To: <87a8r4ary9.fsf@kyleam.com> (Kyle Meyer's message of "Tue, 27 Oct
	2015 18:04:46 -0400")
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Kyle Meyer <kyle@kyleam.com> writes:

> When a ".git" file points to another repo, a ".git/gitdir" file is
> created in that repo.
>
> For example, running
>
>     $ mkdir repo-a repo-b
>     $ cd repo-a
>     $ git init
>     $ cd ../repo-b
>     $ echo "gitdir: ../repo-a/.git" > .git
>     $ git status
>
> results in a file "repo-a/.git/gitdir" that contains
>
>     $ cat repo-a/.git/gitdir
>     .git

Sounds like a bug in the recently added "worktree" stuff.  Perhaps
update_linked_gitdir() tweaked by 82fde87f (setup: update the right
file in multiple checkouts, 2015-08-25) is misbehaving?