From: Philip Oakley <philipoakley@iee.email>
Date: Fri, 31 Dec 2021 17:16:43 GMT
Subject: Re: bug: git name-rev --stdin --no-undefined on detached head
Message-ID: <9b13b1d1-8e0f-b5c9-ad66-7a0e63eb0b13@iee.email>
In-Reply-To: <xmqqk0ft3i3g.fsf@gitster.g>

Thanks you for the example..

On 24/12/2021 19:42, Junio C Hamano wrote:
> * The sample input was produced with
>
>         $ cat >sample.txt <<EOF
>         A revision that exists $(git rev-parse --short HEAD) is shown here,
>         and its full name is $(git rev-parse HEAD)
>         while its tree object is $(git rev-parse HEAD:)
>         which probably is undescribable hexdigits.
>         EOF
>
> if you want to try it at home ;-)

The ` $(git rev-parse HEAD:) ` technique is serendipitous. 

I'd forgotten that was how to get the commit object's tree  for further
investigation, as I'd need it for my `deadhead` query [1], as used
regularly in the Git-for-Windows merging-rebase (see also [2]).

Philip
[1]
https://lore.kernel.org/git/be7ec330-2b2c-a01f-c7ca-e5e752493ee0@iee.email/
[2]
https://lore.kernel.org/git/nycvar.QRO.7.76.6.2112101528200.90@tvgsbejvaqbjf.bet/