Re: Submodule "git branch" says (HEAD detached at <incorrect-commit>)

From: Junio C Hamano <gitster@pobox.com>
Date: Jul 3, 2019, 18:17 UTC
Message-ID: <xmqq7e8z0ypm.fsf@gitster-ct.c.googlers.com>
In-Reply-To: <CAMPRpjUWBXCEagDB5RwsBTYSJWeypOeY47CGWOO95oZiSCTOjw@mail.gmail.com>

Julius Smith <jos@ccrma.stanford.edu> writes:

Show 7 quoted lines

> "git branch" in the the submodule directory says "(detached from
> <commit-for-D>)" but this seems to be wrong.  I did "git diff
> <commit>" in the submodule directory to show that it was the C-commit
> and not the D-commit as it appeared.  Could "git branch" in the
> submodule directory be referring to the commit at the time it was
> first detached and not updating after a "git submodule update --init"
> in the parent?

There are "detached from" and "detached at" messages. Their use was somewhat inconsistent in the older version of Git, but at least since 2.4.0 (quoting from Documentation/RelNotes/2.4.0.txt):

 * The phrasing "git branch" uses to describe a detached HEAD has been
   updated to agree with the phrasing used by "git status":

    - When HEAD is at the same commit as when it was originally
      detached, they now both show "detached at <commit object name>".

    - When HEAD has moved since it was originally detached, they now
      both show "detached from <commit object name>".

   Previously, "git branch" always used "from".

"git branch" and "git status" should be using the same language to describe the situation.