Re: [PATCH] Re: [wishlist] submodule.update config

[Yaroslav Halchenko <yoh@onerussian.com>]

On Wed, 12 Dec 2018, Stefan Beller wrote:

> > But again, I must confess, that either I forgot or just do not see a
> > clear use-case/demand for submodule.update config myself any longer,

> ok, let's drop that patch then.

ok, But I will cherish it in my memory so whenever the use case
comes back to me -- I will be back too ;)

> > Probably I need to try "submodules update --merge" to see what is that
> > rough edge which makes it different from the potential "merge
> > --recurse-submodules", or is it easy to describe? ;-)

> I think the branch handling would be the difference. I'd expect
> "merge --recurse-submodules" to be sensible about staying on
> the branch both in the superproject and submodule, whereas
> "submodule update --merge" is too much plumbing, that we'd
> expect a sensible branch handling (detached HEAD is just fine,
> right?)

re "detached HEAD is just fine" -- I guess "it depends"...  E.g.  why
should it get detached if it was not detached to start with?  Why not
just to perform a regular "git merge --recurse-submodules" within
the submodule thus making it all consistent across?

If there is a need in detached HEADs handling of merges etc, get
them detached and then they would stay detached - no surprises.

> The merge result would be the same, I'd think.

it better be ;)

> > I wonder if may be instead of pestering you about this config one, I
> > should ask about pointers on how to accomplish "revert
> > --recurse-submodules"

> What do you want to do in revert --recurse-submodules?
> When you have "revert --recurse-submodules $COMMIT",
> would that revert all submodule commits introduced in
> that commit as well as the regular superproject revert?

That is correct

> This would require either opening multiple editors
> (once per submodule and at last for the superproject)
> or we'd have to do fancy snip-snapping of the user input,
> e.g. providing a template like:

>     Revert "$title"

>     This reverts commit $COMMIT.

>     # The above is for the superproject commit
>     # Please enter the commit message  ...

>     # Changes to be committed:
>     #       ...
>     # --8<-- DO NOT DELETE THIS LINE
>     # Below is the commit for submodule $submodule:
>     Revert $submodule_range

>     This reverts commits $maybe_many

>     # The above is for the submodule commit
>     # Please ...

> I guess it may be easier to just have multiple
> editors opened sequentially to give a commit
> message.

yeap - that would be beautiful.  Now I just need to do that all manually
;)

> >  or where to poke to make it possible to clone
> > recursively from  http://datasets.datalad.org/ where  we do not place
> > submodules all under the very top /.git/modules ;-)

> Not sure what you mean there?

sorry I was not clear... I will start a new thread for a complete
description.

-- 
Yaroslav O. Halchenko
Center for Open Neuroscience     http://centerforopenneuroscience.org
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834                       Fax: +1 (603) 646-1419
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