On Tue, 13 Sep 2016 23:11:18 -0400, Augie Fackler wrote:
> # HG changeset patch
> # User Augie Fackler <au...@google.com>
> # Date 1472584421 14400
> # Tue Aug 30 15:13:41 2016 -0400
> # Node ID 828f260114a3a55e246cb5de434e75bdc782e4ad
> # Parent 600be3c9acee0ec14bd19c032cc0480e4501fe8c
> fancyopts: disallow true as a boolean flag default (API)
>
> This was nonsense, as there's not been a way for the user to
> un-specify the flag. Restricting this behavior will open the door to
> some nice fit-and-finish functionality in a later patch, and shouldn't
> break any third party extensions. This is marked as (API) since it
> might break a third party extension, but given the fact that it was
> silly before that's mostly a formality.
Yes, it was silly before, but now it isn't because we have --no-<opt>.
We can define ('status', default=True) in place of ('no-status', default=False).
Though I'm sure we'll need something to mark default-True flags in help, I
think that will still be simpler than ditching default=True and False.
For None/False/True tristate, I'd rather make it <empty>/False/True and
test 'key in opts' explicitly.
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