From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Tue, 30 Apr 2013 11:10:02 GMT
Subject: Re: [PATCH] Add new @ shortcut for HEAD
Message-ID: <CALkWK0mftWaC0Mi6QYm+iPk8bMgmS05--nevVKdOeOM9sPyg5w@mail.gmail.com>
In-Reply-To: <CACsJy8C34vN7SB62-+Z3BNZeroTB_vm-n-NMhFRbAuBPQZFKcA@mail.gmail.com>

Duy Nguyen wrote:
> Habits aside, why do you do H@{u} when @{u} is enough (and shorter)?

I don't.  In the @{} spec, HEAD is implicit.  My initial itch was that
HEAD is not implicit in the ~<n> spec, and started off by thinking how
we could make HEAD implicit specifically for that case [1].  Since
then, we've realized that it's probably easier (and more useful) to
have a synonym for HEAD that works in all specs.  As a side effect,
master..@ will work too.  I was looking into the repercussions of
this, and noticed that Michael's @ symref is not equivalent to my H
symref.  I previously thought that all symrefs would behave in exactly
the same manner, but @ clearly seems to be a special case: I was
merely pointing this out with an example.

[1]: http://article.gmane.org/gmane.comp.version-control.git/222343