Re: [PATCH] Add new @ shortcut for HEAD

Ramkumar Ramachandra [off-list ref] writes:

Junio C Hamano wrote:

quoted

If you accept only "@" but not "master@", that behaviour needs a
wrong world model to understand and justify (one of which is "@ is a
synonym for HEAD").  If your rule is "In $anything@{$n}, you can
drop {$n} when $n==0", then HEAD@{0} becomes HEAD@ and master@{0}
becomes master@, and @{0} becomes @ naturally.

Besides, you're going in the wrong direction this time.  You are
trying to fit an explanation to something that is useless.  How is
master@ useful?

How else would you explain why "rev-parse --symbolic-full-name @"
does not make sense and "update-ref @" does not update HEAD?

Junio C Hamano wrote:

How else would you explain why "rev-parse --symbolic-full-name @"
does not make sense

It does make sense.  (Try it with my patch) [*1*]

and "update-ref @" does not update HEAD?

Why should update-ref update HEAD?  I'm asking it to update the
symbolic-ref override .git/@.

[Footnote]

*1* I made a mistake in the commit message when I said that git
symbolic-ref @ HEAD had the exact same effect.