From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 25 Mar 2016 17:45:40 GMT
Subject: Re: How to use @{-1} with push?
Message-ID: <xmqq8u164fjv.fsf@gitster.mtv.corp.google.com>
In-Reply-To: <CAHd499AM-OzqiB1hOF=0BTesFxrxNj=+jr1wH6vpQXfgoXd8Ug@mail.gmail.com>

Robert Dailey <rcdailey.lists@gmail.com> writes:

> Both should refer to the last branch, but I know that these can't be
> used verbatim in a push command because it doesn't read it as a branch
> name normally like `git checkout` would.

You can ask rev-parse to give you --symbolic-full-name, error out if
it is empty (i.e. detached HEAD), and otherwise use the result, no?

    $ git checkout next
    $ git checkout master
    $ git rev-parse --symbolic-full-name @{-1}
    refs/heads/master
    $ git checkout HEAD^0
    $ git checkout master
    $ git rev-parse --symbolic-full-name @{-1}
    $ exit

And

    $ git push origin :refs/heads/master

would be the fully-spelled out way to remove that branch.