Add option to remove 'ruby-' prefix

[havenwood]

Add option to remove 'ruby-' prefix

[postmodern]

I like having the consistency of name-version.

[havenwood]

I think I agree that consistency here is more important than the slight aesthetic advantage of the shorter name. Removing the prefix only makes sense for Ruby and not the other implementations.

Anti-feature?

[postmodern]

Not sure. rbenv started making exceptions for MRI and stripping the ruby- prefix.

[wilmoore]

rbenv started making exceptions for MRI and stripping the ruby- prefix

I think this made sense when the idea of multiple implementations was just a cute notion; however, multiple implementations is a real thing; thus, I would call it an anti-feature at this point. Of course, others may look at it from another angle, so it is what it is.

[wilmoore]

Close or keep?

[postmodern]

Let's close. Keeping the prefix helps distinguish between rubinius-2.0.0 and ruby-2.0.0.

[bronson]

This seems inconsistent...? Either it's called mri and just another ruby, or it's called ruby and is the intuitive default.

[havenwood]

@bronson For each of the Rubies the engine name matches the RUBY_ENGINE value. So "ruby" for MRI, "mruby" for mruby, "jruby" for JRuby and "rbx" for Rubinius.

So it's RUBY_ENGINE-RUBY_ENGINE_VERSION.

[bronson]

Ah right, I'd forgotten about RUBY_ENGINE.

Like anything, it makes sense once you see the internals. :)

[postmodern]

@bronson we settled on naming the rubies after their primary executable (MRI -> ruby, Rubinius -> rbx). This also nicely aligns with RUBY_ENGINE. I also don't think it's fair to the other rubies to give special treatment to MRI.