Re: WASM from Ruby - Lightning Chess Web App

[Jun Aruga (he / him)]

Hi Philip,
I added a Ruby SiG mailing list to TO.

Folks at Ruby SiG,
Could you take a look at the message below? Philip is trying to create
a RPM package including WASM built Ruby binaries. Your feedback is
helpful.

On Mon, Jan 9, 2023 at 11:00 AM Philip Rhoades <phil(a)pricom.com.au&gt; wrote:
>  Jun,
>
>
>  On 2023-01-09 00:36, Jun Aruga (he / him) wrote:
>  > On Sun, Jan 8, 2023 at 11:51 AM Philip Rhoades via devel
>  > <devel(a)lists.fedoraproject.org&gt; wrote:
>  >>
>  >> People,
>  >>
>  >> Over the holidays we had our irregular Family Lightning Chess
>  >> competition (10 seconds per move) - I have not found an online web
>  >> site
>  >> that will work exactly with our rules and it occurs to me that this
>  >> would be a nice project for me to get working via a Ruby2WASM project.
>  >> If I could get that project working, it would allow the family to have
>  >> at least annual electronic competitions for the times when not all the
>  >> relatives can physically make it to the one place at the one time . .
>  >>
>  >> What do you think?
>  >
>  > Good idea!
>
>
>  Good! - I wasn't sure if it was or note . .
>
>
>  > Ruby 3.2 released a few weeks ago, started to support the WASM built
>  > feature, and I guess that people want to use it easily.
>
>
>  I certainly do!
>
>
>  > The first choice for the packaging is to create WASM built binaries as
>  > a sub package of "ruby" https://src.fedoraproject.org/rpms/ruby or to
>  > create a new package with the new RPM spec file.
>
>
>  I don't know about that but it would be good for me to get started with
>  a "Hello World!" Ruby2WASM app and go from there . . 
OK. I think trying to create a minimal RPM package such as "Hello
World" is a good idea if you have never experienced RPM packaging.
Then as your next step, you may be able to try to build by creating
your package by copying the current rpms/ruby's ruby.spec to e.g.
ruby-wasm.spec, and modifying it to build WASM binaries.

Tutorial:
https://docs.fedoraproject.org/en-US/package-maintainers/Packaging_Tutori...
Packaging Guide: https://docs.fedoraproject.org/en-US/packaging-guidelines/

>  > We discussed if we shipped WASM binaries a bit in the ruby-sig@
>  > mailing list. I can recommend you to join the list to discuss people
>  > in the ruby related packages  if you like.
>  >
>  > * Ruby 3.2 - ruby-sig@
>  >
>  >
> https://lists.fedoraproject.org/archives/list/[e-mail]...
>
>
>  Yes, I read that stuff and am subscribed to that list now. 
OK. Nice!

>  > Fedora WASM SIP might be launched. You can check the situation.
>  >
>  > * Web Assembly on Fedora: interested in a Fedora SIG to work on this?
>  >
>  >
> https://lists.fedoraproject.org/archives/list/[e-mail].o...
>
>
>  Happy to join that list too but that is a much wider deal than the
>  Ruby2WASM project? 
Yes. right. I think it's about WASM things more than Ruby.
For example, it's about what you need to do to build WASM binaries of
Ruby, and which dependency RPM packages you need.

>  Thanks!
>
>  Phil.
>  --
>  Philip Rhoades
>
>  PO Box 896
>  Cowra  NSW  2794
>  Australia
>  E-mail:  phil(a)pricom.com.au 
Thanks too!

-- 
Jun | He - Him | Timezone: UTC+1 or 2, Czech Republic
See <https://www.worldtimebuddy.com/czech-republic-prague-to-utc> for
the timezone.

WASM from Ruby - Lightning Chess Web App

[Jarek Prokop]

Hi,

I don't have much experience with WASM compilation on Fedora.

There are some examples online running Ruby compiled to WASM.

The most prominent example is TryRuby [0], see source [1].
It seems like they are pulling an NPM package [2] of already compiled 
Ruby wasm.
I see some usage of Emscripten and WASI SDK [3] but don't take me 
seriously on that.

Or you can go completely from source. Then you want to follow Ruby's 
upstream README on wasm crosscompilation [4].

I think clang can cross-compile to WASM, not sure if GCC also has this 
capability.
Either way you will need wasi-libc for this, which is not currently 
included in Fedora [5] and [6].
The wasi-libc is currently the major pain point for simple 
cross-compilation and that applies not just to Ruby,
but other similar cross-compilation efforts as well.

Alternatively, if you're more interested in having a Ruby project run in 
browser than all the toolchain setup,
there is a project called "Opal" [7] [8], which seems simpler to me at 
least from the setup side of things.

The pathway is ultimately yours, from my Point of View these are 
uncharted territories in both Fedora Ruby's and Fedora packaging.
If you happen to compile it yourself from sources, I'd love to hear back 
from you about the progress and/or steps.

Regards,
Jarek

[0] 
https://try.ruby-lang.org/playground/#code=3.times+do%0A++print+'Welc...
[1] https://github.com/ruby/TryRuby
[2] https://www.npmjs.com/package/ruby-head-wasm-wasi
[3] 
https://github.com/ruby/ruby.wasm/blob/main/lib/ruby_wasm/build_system/to...
[4] 
https://github.com/ruby/ruby/tree/master/wasm#webassembly--wasi-port-of-ruby
[5] 
https://lists.fedoraproject.org/archives/list/[e-mail].o...
[6] 
https://lists.fedoraproject.org/archives/list/[e-mail].o...
[7] https://opalrb.com/
[8] https://github.com/opal/opal

On 1/9/23 12:10, Jun Aruga (he / him) wrote:
>  Hi Philip,
>  I added a Ruby SiG mailing list to TO.
>
>  Folks at Ruby SiG,
>  Could you take a look at the message below? Philip is trying to create
>  a RPM package including WASM built Ruby binaries. Your feedback is
>  helpful.
>
>  On Mon, Jan 9, 2023 at 11:00 AM Philip Rhoades<phil(a)pricom.com.au>  wrote:
> > Jun,
> >
> >
> > On 2023-01-09 00:36, Jun Aruga (he / him) wrote:
> >> On Sun, Jan 8, 2023 at 11:51 AM Philip Rhoades via devel
> >> <devel(a)lists.fedoraproject.org&gt;  wrote:
> >>> People,
> >>>
> >>> Over the holidays we had our irregular Family Lightning Chess
> >>> competition (10 seconds per move) - I have not found an online web
> >>> site
> >>> that will work exactly with our rules and it occurs to me that this
> >>> would be a nice project for me to get working via a Ruby2WASM project.
> >>> If I could get that project working, it would allow the family to have
> >>> at least annual electronic competitions for the times when not all the
> >>> relatives can physically make it to the one place at the one time . .
> >>>
> >>> What do you think?
> >> Good idea!
> >
> > Good! - I wasn't sure if it was or note . .
> >
> >
> >> Ruby 3.2 released a few weeks ago, started to support the WASM built
> >> feature, and I guess that people want to use it easily.
> >
> > I certainly do!
> >
> >
> >> The first choice for the packaging is to create WASM built binaries as
> >> a sub package of "ruby"https://src.fedoraproject.org/rpms/ruby  or to
> >> create a new package with the new RPM spec file.
> >
> > I don't know about that but it would be good for me to get started with
> > a "Hello World!" Ruby2WASM app and go from there . .
>  OK. I think trying to create a minimal RPM package such as "Hello
>  World" is a good idea if you have never experienced RPM packaging.
>  Then as your next step, you may be able to try to build by creating
>  your package by copying the current rpms/ruby's ruby.spec to e.g.
>  ruby-wasm.spec, and modifying it to build WASM binaries.
>
>
> Tutorial:https://docs.fedoraproject.org/en-US/package-maintainers/Packagi...
>  Packaging Guide:https://docs.fedoraproject.org/en-US/packaging-guidelines/
>
> >> We discussed if we shipped WASM binaries a bit in the ruby-sig@
> >> mailing list. I can recommend you to join the list to discuss people
> >> in the ruby related packages  if you like.
> >>
> >> * Ruby 3.2 - ruby-sig@
> >>
> >>
> https://lists.fedoraproject.org/archives/list/[e-mail]...
> >
> > Yes, I read that stuff and am subscribed to that list now.
>  OK. Nice!
>
> >> Fedora WASM SIP might be launched. You can check the situation.
> >>
> >> * Web Assembly on Fedora: interested in a Fedora SIG to work on this?
> >>
> >>
> https://lists.fedoraproject.org/archives/list/[e-mail].o...
> >
> > Happy to join that list too but that is a much wider deal than the
> > Ruby2WASM project?
>  Yes. right. I think it's about WASM things more than Ruby.
>  For example, it's about what you need to do to build WASM binaries of
>  Ruby, and which dependency RPM packages you need.
>
> > Thanks!
> >
> > Phil.
> > --
> > Philip Rhoades
> >
> > PO Box 896
> > Cowra  NSW  2794
> > Australia
> > E-mail:[e-mail]
>  Thanks too!
>

WASM from Ruby - Lightning Chess Web App

[Jun Aruga (he / him)]

Jarek, thanks for your feedback!

>  Or you can go completely from source. Then you want to follow
> Ruby's upstream README on wasm crosscompilation [4]. 
...
>  [4]
> https://github.com/ruby/ruby/tree/master/wasm#webassembly--wasi-port-of-ruby 
...

Phillip,
I built Ruby WASM binarys following the link [4] above, building
WASM-SDK and wasmtime recently. So, I may help you if you have some
issues on the way.

It seems that there is also another way to build and run Ruby WASM
binaries with wasi-vfs.
https://www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-released/ -
WASI based WebAssembly support
>  In addition, we built a VFS on top of WASI so that we can easily pack
> Ruby apps into a single .wasm file. This makes distribution of Ruby apps a bit easier.
As Jarek said, the necessary RPM packages such as "wasi-libc" and
"wasmtime" to build and run WASM binaries are not ready. Perhaps, you
can try to build Ruby WASM binaries from source first, then you might
be able to give feedback to people who are trying to create
WebAssembly SIG.

-- 
Jun | He - Him | Timezone: UTC+1 or 2, Czech Republic
See <https://www.worldtimebuddy.com/czech-republic-prague-to-utc> for
the timezone.