Re: [RFC/PATCH v2] pull: add --set-upstream

[Erwan Mathoniere <erwan.mathoniere@grenoble-inp.org>]

On 06/06/2016 21:06, Junio C Hamano wrote:
>
> But I am unhappy with a more serious problem with the tests in this
> patch.  They assume that "-u" option will forever be the only thing
> that is allowed to modify the configuration during "git pull -u".
> It should never make such an assumption.
>
> The only thing these additional tests later in the patch (ommitted)
> want to check, if I understand them correctly, is that when -u is
> used on a ref that shouldn't be tracked from the given remote then
> remote.<that remote>.merge etc. are not updated.  Make a list of the
> configuration variables the feature cares about, and check them and
> ignore changes to any other variable.  Somebody else's feature that
> will be added to "git pull" may have legitimate reason to update
> configuration variables that are not releated to this feature, and
> you shouldn't be writing your test for your feature in such a way
> to forbid such a new feature by others from being added.

I asked myself these questions but I came to the wrong conclusion since 
I considered that testing if `--set-upstream` doesn't alter any 
configuration var it shouldn't was also important. But there is no 
reason "git pull -u" modify the configuration in such a chaotic way.

I'll apply your suggestions, thanks.