From: Junio C Hamano <gitster@pobox.com>
Date: Tue, 03 May 2011 15:01:05 GMT
Subject: Re: [PATCH 2/4] add -u: get rid of "treewideupdate" configuration
Message-ID: <7v4o5bkevi.fsf@alter.siamese.dyndns.org>
In-Reply-To: <BANLkTimfT87-vV0GCvsVmRJ6nBZt7jSkkw@mail.gmail.com>

Nguyen Thai Ngoc Duy <pclouds@gmail.com> writes:

> I need someone to enlighten me again. Why do we need ":" for "no
> pathspec" when we can simply specify no pathspec for the same effect?

Futureproofing.  Currently "log" family defaults to "tree-wide" when there
is no pathspec, but imagine what happens when a command like "log" that
knows how to simplify history defaults to "current directory".  You cannot
override it by "git that-cmd :/", which would give it a single tree-wide
pathspec, not "no pathspec".  It will still cull empty commits.