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From:   Junio C Hamano <gitster@pobox.com>
To:     Phillip Wood <phillip.wood@talktalk.net>
Cc:     Ondrej =?utf-8?B?TW9zbsOhxI1law==?= <omosnacek@gmail.com>,
        Philip Oakley <philipoakley@iee.org>, git@vger.kernel.org
Subject: Re: git rebase -i --exec and changing directory
References: <CAAUqJDu_3DTyd1cFKaNRKOzo3AHosfxP1jjWpa=HGtyAyitTeA@mail.gmail.com>
        <CAAUqJDvsRBJWZh5_A2e2x-CqgXi5gLSjo6-P2sYxsKz3qfidSw@mail.gmail.com>
        <1EAAF778D73B4AA689ADB5AE2EE9D1DD@PhilipOakley>
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        <3465c994-3917-cd45-bb8e-d1121f60bfb4@talktalk.net>
Date:   Mon, 28 May 2018 11:45:19 +0900
In-Reply-To: <3465c994-3917-cd45-bb8e-d1121f60bfb4@talktalk.net> (Phillip
        Wood's message of "Sun, 27 May 2018 17:07:58 +0100")
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Phillip Wood <phillip.wood@talktalk.net> writes:

> I tried your recipe and got the same result as you. However I think it
> could be a problem with 'git status' rather than 'git rebase
> --exec'. If I run your recipe in /tmp/a and do
>
> cd dir
> GIT_DIR=/tmp/a/.git git status
>
> I get the same result as when running 'git status' from 'git rebase
> --exec' So I think the problem might have something to do with GIT_DIR
> being set in the environment when 'git status' is run

Yup.  

When GIT_DIR environment variable appears without GIT_WORKING_TREE,
"git" assumes that you are starting it at the root level of the
working tree.  In your example, if there is README at the top-level
but dir/README is not there, "status" would report that you removed
it.  You can unset GIT_DIR in your --exec script if you know that
Git would find the right repository when run from your script.