From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: Unable to create temporary file '/var/git/tmv3-target-overlay.git/shallow_Un8ZOR': Permission denied
Date: Mon, 21 Sep 2015 09:48:48 -0700
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Cc: Joakim Tjernlund <joakim.tjernlund@transmode.se>,
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To: Duy Nguyen <pclouds@gmail.com>
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In-Reply-To: <CACsJy8DFpLLtc7+Mix1d=Hy8h-duUqt4Y8WYsRL1nEryizoeww@mail.gmail.com>
	(Duy Nguyen's message of "Sat, 19 Sep 2015 09:21:53 +0700")
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Duy Nguyen <pclouds@gmail.com> writes:

> Is it really necessary to remove write access in $GIT_DIR? Do we (git
> devs) have some guidelines about things in $GIT_DIR?

Those who are allowed to "git push" into it should be able to write
there.  It is a different matter that "git" program itself may make
a policy decision to disallow some operations that the filesystem
bits alone would have allowed (e.g. you can arrange the "pusher" to
only come over the wire via "receive-pack" and "receive-pack" may
deliberately lack support for writing into $GIT_DIR/config).