From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeff King <peff@peff.net>
Subject: Re: git branch command is incompatible with bash
Date: Tue, 28 Jul 2015 12:25:17 -0400
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Cc: Johannes Sixt <j6t@kdbg.org>,
	Anatol Rudolph <a.rudolph@2vizcon.com>, git@vger.kernel.org
To: Junio C Hamano <gitster@pobox.com>
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On Tue, Jul 28, 2015 at 08:23:40AM -0700, Junio C Hamano wrote:

> I can see that "symbolic-ref --short" is much newer than the other
> one, so addition of "--abbrev-ref" to "rev-parse" may have been a
> mistake made while being desperate (i.e. not having a way to do so
> with plumbing, we wanted "some" way to do so and chose poorly).

I think --abbrev-ref can handle much more than just shortening symrefs,
though:

E.g. resolving other symbolic names:

  $ git rev-parse --abbrev-ref @{u}
  origin/master

Or resolving any arbitrary name you happen to have:

  $ git rev-parse --abbrev-ref refs/heads/master
  master

Even ones that aren't fully qualified (which would be tough to do with
simple pattern substitution):

  $ git rev-parse --abbrev-ref remotes/origin/master
  origin/master

Or handling ambiguities during abbreviation:

  $ git tag master
  $ git rev-parse --abbrev-ref HEAD
  heads/master

-Peff