From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 07 Apr 2010 06:18:34 GMT
Subject: Re: [PATCH] Initialize notes trees if %N is used and no --show-notes given
Message-ID: <7v39z7g4zp.fsf@alter.siamese.dyndns.org>
In-Reply-To: <201004061352.21945.trast@student.ethz.ch>

Thomas Rast <trast@student.ethz.ch> writes:

>> I'd really like %N to do the initialization. There is no other
>> placeholder which requires an extra option to work, if I see it
>> correctly.
>
> %g[dDs] expand to nothing unless the log command walks reflogs, so
> there is some precedent.

As Peff pointed out, %d does things lazily, but I suspect it might be hard
to do a similar initialization for %N.

I wonder if we can inspect-but-not-use format string before we even start
walking, to see if we need notes (when we see %N).

None of the abouve applies to %g because making it cause reflog walking
will change not only the output, but the fundamental behaviour of the
command.