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Date:      Mon, 11 Jun 2018 17:23:33 -0700
From:      Devin Teske <dteske@FreeBSD.org>
To:        Warner Losh <imp@bsdimp.com>
Cc:        Devin Teske <dteske@FreeBSD.org>, Kyle Evans <kevans@freebsd.org>, src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r334939 - head/stand/lua
Message-ID:  <B2A41A7C-F18B-44B4-A75C-FE42E4A6D128@FreeBSD.org>
In-Reply-To: <CANCZdfpDu4K0qdQt670px6VAsKM0a_pP4tbCtH2Vk0Ou80szzg@mail.gmail.com>
References:  <201806110132.w5B1WI5d094546@repo.freebsd.org> <E6FA26B8-63CF-4927-AE20-644D985BACD8@freebsd.org> <CANCZdfrtK_Cn1N2RE=f5DS_UNLq6C493LUNwQoHvYX06noVZxg@mail.gmail.com> <344AA709-2DF7-405C-AB4D-4F0978834EA1@FreeBSD.org> <CANCZdfpDu4K0qdQt670px6VAsKM0a_pP4tbCtH2Vk0Ou80szzg@mail.gmail.com>

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> On Jun 11, 2018, at 11:20 AM, Warner Losh <imp@bsdimp.com> wrote:
>=20
>=20
>=20
> On Mon, Jun 11, 2018 at 11:54 AM, Devin Teske <dteske@freebsd.org =
<mailto:dteske@freebsd.org>> wrote:
>=20
>> On Jun 11, 2018, at 7:07 AM, Warner Losh <imp@bsdimp.com =
<mailto:imp@bsdimp.com>> wrote:
>>=20
>>=20
>>=20
>> On Mon, Jun 11, 2018 at 7:36 AM, Devin Teske <dteske@freebsd.org =
<mailto:dteske@freebsd.org>> wrote:
>>=20
>>=20
>> > On Jun 10, 2018, at 6:32 PM, Kyle Evans <kevans@FreeBSD.org =
<mailto:kevans@FreeBSD.org>> wrote:
>> >=20
>> > Author: kevans
>> > Date: Mon Jun 11 01:32:18 2018
>> > New Revision: 334939
>> > URL: https://svnweb.freebsd.org/changeset/base/334939 =
<https://svnweb.freebsd.org/changeset/base/334939>;
>> >=20
>> > Log:
>> >  lualoader: Allow brand-*.lua for adding new brands
>> >=20
>> >  dteske@, I believe, had originally pointed out that lualoader =
failed to
>> >  allow logo-*.lua for new logos to be added. When correcting this =
mistake, I
>> >  failed to do the same for brands.
>> >=20
>>=20
>> You=E2=80=99re doing an amazing job, Kyle.
>>=20
>> I continually see nothing but genuine effort toward feature parity =
which makes me think one day I can pass the reigns.
>>=20
>> Yeah, I will always love Forth. It will always hold a special place =
in my heart as that whacky language that simultaneously exudes great =
power while also having the image ability to induce vomiting =F0=9F=A4=AE =
by the uninitiated.
>>=20
>> However, all that being said, I=E2=80=99d actually like to keep the =
Ficl boot stuff as an option through to 14.0 and here is why ...
>>=20
>> Last year we were looking to update from ficl3 to ficl4. That may not =
sound too exciting to most folks, but most folks don=E2=80=99t know the =
power that ficl4 brings =E2=80=94 like the capability to use full =
networking in the loader! Can lua do that? How cool would it be to be =
able to communicate with the network from the loader before the kernel =
is even loaded into memory? I had a few hair-brained schemes left for =
Forth which might be exciting, lol
>>=20
>> The current boot loader can already communicate via NFS or TFTP =
today. Adding http would be easy, https would be harder due to crypto =
being huge and space being small (though bear ssl might be small =
enough).
>>=20
>> The last articulated plan in arch@ was that LUA will be default in =
12, and we plan to remove FORTH in 13. Last time I said it there in =
February, there was only email agreeing that I could find. This matches =
the in-person consensus poll I took at BSDcan as well. I think it would =
take a very extraordinary set circumstance and severe problems with LUA =
to change those plans.
>>=20
>=20
> At BSD Can there was the boot working group where we discussed that an =
FCP would be required to decide this.
>=20
> In the working group you weren't listening and being rather combative =
and demanding that I do stuff,

I think that's an unfair characterization of the situation, but it =
doesn't matter -- that's your opinion and you are entitled to it.



> so I stopped talking.

Hopefully we can _start_ talking. As the principled author of this work, =
I want to have a say in its deprecation since I still maintain that body =
of work.


> It should not be taken as a sign of my consent, but more a sign of not =
wanting to get into a yelling match in public on a topic I thought had =
been settled months ago.
>=20

Nobody asked *me* about how I would like to see *my* work removed from =
the tree. I think I should have a say.

I think I've been pretty darn helpful in the process by providing =
substantive and helpful feedback to not only Kyle but also on the GSoC =
project etc. I've not stood in any ones way. For being so helpful, I =
would expect a level respect in this matter.



> I raised my desires that I would like to be able to flip a knob in 13 =
and reboot between Ficl and Lua, back and forth.
>=20
> Give people a choice until we have done a "shake-out" through an =
entire major version.
>=20
> An honest-to-goodness procession would be, in my mind:
>=20
> 13: Has both; both are installed. End-user can boot back and forth =
between the two
>=20
> Problems that arise in one or the other are non-critical because there =
is always an "out" by running the other.
>=20
> 14: Has both but both are not installed. The installer media doesn't =
even have it. You can't install the Forth booth stuff unless you twist a =
knob in buildworld, optionally going down the path of generating release =
media which has the Forth boot stuff.
>=20
> 15. It's removed from tree. You can't build Forth boot. Lua only. No =
looking back, no way to build it with Forth, to get Ficl you need to go =
to ports. A Ficl with FreeBSD boot words no longer exists and is no =
longer maintained. All of bhyve userboot also therefore uses Lua.
>=20
> That's way too long. 12 will have Lua by default, but you can build =
FORTH if you want has been the plan since February when I socialized =
this on arch@. I originally pitched coexistence, but there was little =
appetite for that.
>=20
> So I think a FCP discussed in arch@ is the right path forward.
>=20

We sat on the GSoC for years. Why all of a sudden do we need to ship =
this in less than 6 months?

There are new features in Forth for 12 and they work and Lua has not =
caught up to them (e.g., Boot Environments in the loader menu) and you =
want to make Lua the default in 12? This doesn't make sense.

The timeline I suggested is more amenable to actually crossing the =
finish line with a fully-functional drop-in replacement.
--=20
Devin=



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