From: Junio C Hamano <gitster@pobox.com>
Date: Mon, 04 Mar 2013 15:49:53 GMT
Subject: Re: [PATCH 4/5] status: show the ref that is checked out, even if it's detached
Message-ID: <7v38wbxizi.fsf@alter.siamese.dyndns.org>
In-Reply-To: <CACsJy8A+gw9oJYrJqa-b8noKM7qJTkZEd7ovmxqR68i6miCatA@mail.gmail.com>

Duy Nguyen <pclouds@gmail.com> writes:

>> Instead of punting to "Currently not on any branch", would it help
>> to show the place you first detached at, so that the user can then
>> grab that commit object name and run
>>
>>     $ git log --oneline $that_commit..
>>
>> or something?
>
> $that_commit would be HEAD@{-1} right? Should that be used instead of
> grabbing random SHA-1 shown in git-status?

You can say "git checkout @{-1}" to go back.  That is the commit you
came _from_.

But I think what you were computing for $that_commit was different.
It's "the ref that is checked out, even if it's detached".

After doing:

	: start from anywhere
        git checkout master	;# on master
        git checkout branch~4   ;# detach at that commit
        ... hack hack hack ...
        git commit; git commit

your @{-1} is 'master'; "the ref that is checked out, even if its'
detached" is 'branch~4', and that is what you want as $that_commit
in the example.  That shows your _progress_, which has no relation
with 'master' that is @{-1}.