Are there any standalone Eclipse plugins for Ruby like PyDev for Python?

I can install PyDev for Eclipse and have pret开发者_StackOverflowty good Python IDE without any vendor preconfigurations. But surprisingly, I can't find a similar standalone IDE plugin for Ruby! Same company that supports PyDev, Aptana, offers something called "RadRails", but I could not find a way to install it separately - only as "Aptana Studio 3 Addin Plugin", and this "studio" includes not only Ruby - but also PyDev, PHP and lots of preconfigurations focused on web development.

What am I missing? Why can I install PyDev and have debugger/completion for python but for Ruby this leads for Eclipse bloated with "web perspectives", "web frameworks integration", etc?

There are two Ruby plugins for Eclipse. DLTK (the official Eclipse toolkit for dynamic languages) does support Ruby, and there is the RDT project.

There are also full-blown IDEs built on top of each: 3rd Rail by whatever-Borland-is-called-nowadays is built on top of DLTK/Ruby and RadRails by Apatana is built on top of RDT.

Check this: RDT

Aptana is the only one I know of - though it doesn't really qualify as 'standalone' I suppose aptana studio