From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCHv18 00/11] Expose
Date: Thu, 25 Feb 2016 15:39:52 -0800
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Cc: Stefan Beller <sbeller@google.com>,
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To: Jonathan Nieder <jrnieder@gmail.com>
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On Thu, Feb 25, 2016 at 3:35 PM, Jonathan Nieder <jrnieder@gmail.com> wrote:
> Interesting --- git sets a GIT_PREFIX environment variable (in the
> same spirit as GIT_WORK_TREE) but doesn't read it.

I think that is because it is meant for helping end-user scripts that
are called by us;
they would not know where the end user started the process in, as one
of the first
things we do is to find the top of the working tree and go there.