Rubinius support about asdf-ruby

[Stratus3D]

We now use ruby-build. Rubinius is now available.

[AlexWayfer]

Just... Rubinius is a Ruby language implementation, like JRuby, or even MRI, and they are in asdf-ruby... It would be strange to make another plugin for this.

[padde]

How about using https://github.com/rbenv/ruby-build to build rubies? ruby-build supports many popular implementations and platforms. It also has a local list of available Rubies which would speed up the asdf list-all ruby command significantly (currently fetches list via HTTP on each invocation). There might be a good reason to have a custom toolchain which I don't see - but from an outside perspective it seems like a waste of time. ruby-build is doing a great job at this already.

As a side note, you can use ruby-build today to install Rubinius for ASDF by simply running

ruby-build rbx-3.82 ~/.asdf/installs/ruby/rbx-3.82

[Stratus3D]

In asdf-ruby directly, no. Rubinius installation appears relatively simple - clone, configure, and build, so it shouldn't be too hard to build manually. We are always open to new asdf plugins, so if you want to write a plugin for Rubinius we'd definitely consider adding it to the asdf readme.

[AlexWayfer]

And yes, if the Rubinius installation is simple - it means it's easy to add to asdf-ruby, making the life of users even easier.

[Stratus3D]

@AlexWayfer your right, that's a better approach, and it would make things easier on the user.

@padde that's a good idea. No point in duplicating stuff that is already working. And ruby-build is just shell too, so it should be easy to use in asdf-ruby.

For me switching to ruby-build isn't a priority, so I likely won't ever get around to implementing it myself, contributions are welcome! Assuming it makes the existing asdf-ruby code simpler it will be a welcome change.