From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: Do we have a convenient way to refer to a specific commit in an
 already filtered rev-list?
Date: Mon, 03 Oct 2011 12:40:43 -0700
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Cc: Jeff King <peff@peff.net>, git@vger.kernel.org
To: Tzu-Jung Lee <roylee17@gmail.com>
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 (Tzu-Jung Lee's message of "Tue, 4 Oct 2011 01:19:35 +0800")
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Tzu-Jung Lee <roylee17@gmail.com> writes:

> And also teach the rev-list to parse or interpret the 'saved' refs differently.
> So we can have the following use case:
>
>    git log branch_foo --author=some_one -S some_string --saved=cached_ref
>    git log cached_ref
>    git cherry-pick cached_ref~4
>    git format-patch cached_ref~6..cached_ref~2
>
> I often have such use cases. not sure others would be benefited from
> such feature.
> Just asking for comment. :)

It feels too much hackery for too little gain.

$ git log --oneline master..branch --author=A.U.Thor -Spickaxe >foos.txt

and working from the text file foos.txt at least would not contaminate any
ref namespace and you do not have to clean them after you are done.