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From: Junio C Hamano <gitster@pobox.com>
To: worley@alum.mit.edu (Dale R. Worley)
Cc: git@vger.kernel.org
Subject: Re: [git-users] Problem using detached worktrees with commands implemented in scripts
Date: Wed, 16 Oct 2013 14:42:27 -0700	[thread overview]
Message-ID: <xmqqeh7k51vg.fsf@gitster.dls.corp.google.com> (raw)
In-Reply-To: 201310162003.r9GK3UYj014414@freeze.ariadne.com

worley@alum.mit.edu (Dale R. Worley) writes:

> In general, Git commands on a repository with a detached worktree can
> be executed by cd'ing into the directory containing the .git
> directory, ...

Eh?  News to me; it might happened to have appeared to work by
accident, but that is not by design.

IIRC, the intended use pattern (i.e. the change that introduced
GIT_DIR and GIT_WORK_TREE environment variables was designed to
support) for such a working tree is to:

 - export GIT_DIR that points at the correct .git directory;

 - export GIT_WORK_TREE that points at the correct top-level of such
   a working tree; and then

 - run the commands anywhere in the working tree, as if you did not
   export these two environment variables and instead had the .git
   directory at the usual place in the working tree.

It _is_ possible that we may have broken this canonical use pattern
over time with more recent updates; I do not think we have extensive
test coverage for "detached worktree" use case in the first place.

> Does anyone have any feedback on this?

Not exporting GIT_DIR variable in sh-setup was done not by accident
but as a very deliberate design choice, IIRC.

  reply	other threads:[~2013-10-16 21:42 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-16 20:03 [git-users] Problem using detached worktrees with commands implemented in scripts Dale R. Worley
2013-10-16 21:42 ` Junio C Hamano [this message]
2013-10-16 22:39   ` Philip Oakley
2013-10-16 23:08     ` Junio C Hamano
2013-10-17 20:11       ` Philip Oakley
2013-10-17 20:50         ` Junio C Hamano
2013-10-17 21:14           ` Philip Oakley
2013-10-17 22:38             ` Philip Oakley
2013-10-17 22:48               ` Jonathan Nieder
2013-10-18 20:40                 ` Philip Oakley
2013-10-18 22:54           ` Dale R. Worley
2013-10-17 19:09   ` Dale R. Worley
2013-10-17 20:08     ` Junio C Hamano
2013-10-18 22:25       ` Dale R. Worley
2013-10-18 22:43         ` Junio C Hamano
2013-10-21 18:51           ` Dale R. Worley
2013-10-18 22:50       ` Dale R. Worley

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