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Re: How to undo previously set configuration?

On Thu, Apr 05, 2018 at 03:25:25PM +0200, Olaf Hering wrote:

> Am Thu, 05 Apr 2018 13:21:02 +0200
> schrieb Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>:
> > I'm assuming you mean something like:
> >         [user]
> >         # This is an error
> >         -email
> Yes. Just some flag to say "whatever value this variable has from
> earlier parsing, forget it in case it really exists". Just like "unset
> PATH" in bash.
> I do not know the git internals, so can not really help with the case.

The general strategy in Git's config is that instead of "unsetting", you
should overwrite with whatever value you _do_ want. So a config option
like sendemail.smtpauth should accept some kind of empty or "none" value
to disable auth.

Most single-value config options should work this way (and if one
doesn't, I'd say that's a bug we should fix).

Multi-valued config (e.g., "remote.*.fetch") is harder, since it's
inherently a list where each new instance adds to the list. We've
discussed there having an empty value reset the list, but it's not
applied consistently.