From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 12 Sep 2014 17:31:30 GMT
Subject: Re: git-diff-tree --root
Message-ID: <xmqq61gsbv9p.fsf@gitster.dls.corp.google.com>
In-Reply-To: <20140912130607.GX4075@isis.sigpipe.cz>

Roman Neuhauser <neuhauser@sigpipe.cz> writes:

> git-diff-tree without --root is absolutely silent for the root commit,
> and i see no bad effects of --root on non-root commits.  are there any
> hidden gotchas?  IOW, why is the --root behavior not the default?

Because tools that was written before you proposed that change
expect to see nothing for the root commit, and then you are suddenly
breaking their expectations?