Re: [PATCH] Add new @ shortcut for HEAD

Junio C Hamano [off-list ref] writes:

The rule would be "You should be able to say '@' where-ever you
currently say HEAD" (aka '@' is a short-hand for 'HEAD').

That means "git checout @" should work the same way as "git checkout
HEAD", "git log @~4" would work the same way as "git log HEAD~4",
"git update-ref @ $(git rev-parse master)" should update the HEAD
without creating $GIT_DIR/@, etc.

You can't go any simpler than that rule, and there is no room for
confusion if that rule is properly implemented.

Hmm?

I personally would not mind an easier-to-implement rule that says
"You can say '@' to mean HEAD^0, i.e. the object name of the commit
at the tip of your current branch".  That would make sure that
nobody would expect "git update-ref @ $(git rev-parse master~4)" to
work.