On Mon, Oct 29, 2012 at 06:45:44AM -0400, W. Trevor King wrote:

> > > Ah, good, then we *are* all using the option for the same thing.
> > 
> > That makes me more comfortable. Your patch adds support for setting the
> > variable initially. Does it need any special magic for maintenance, or
> > is it something that would always be updated by hand?
> Everyone we've heard from so far interprets the setting as “pull from
> $branch in the remote repository $url to update the submodule”.  With
> Phil's export, that would become
>   $ git submodule foreach 'git checkout "$submodule_branch" && git pull'
>   $ git commit -a -m "Updated submodules"
>   $ git push
> As Nahor mentioned on the 23rd, there are a number of ways that the
> upstream branch could disappear, but Git has no way to know what the
> new branch setting should be.  This means that even if we make “pull
> from $branch” interpretation official, we still couldn't do anything
> slick about updating it.  So, yes, it will be updated by hand.


Can you send an updated version of the patch that summarizes the
situation in the commit message?

I also think it is probably worth saying something in the documentation
for the feature like "Note that this value is not actually used by git;
however, some external tools and workflows may make use of it."

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