From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: [BUG?] applypatch-msg hook no-longer thinks stdin is a tty
Date: Fri, 02 Oct 2015 09:03:36 -0700
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References: <CAFOYHZArBv=2E_YonCqOSC4mWk9=xkbG9FyB+zNFFAqmUBUKHA@mail.gmail.com>
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To: Chris Packham <judge.packham@gmail.com>
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In-Reply-To: <CAFOYHZArBv=2E_YonCqOSC4mWk9=xkbG9FyB+zNFFAqmUBUKHA@mail.gmail.com>
	(Chris Packham's message of "Thu, 1 Oct 2015 16:42:58 +1300")
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Chris Packham <judge.packham@gmail.com> writes:

> As of git 2.6 this has stopped working and stdin always fails the tty
> check.

We now run that hook thru run_hook_ve(), which closes the standard
input (as the hook is not reading anything).  Perhaps you can check
if your output is connected to the tty instead?