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What is wruby

wruby is a port of mruby optimized for the browser. It runs natively and wrothfully thanks to webassembly, with a footprint of 0.5MB for the ruby engine; which needs to be loaded only once with proper caching.

Everything you need is in the folder examples/hello_wruby.

Example hosted in minimal web demo: http://ruby.pannous.com/

Next: loading of arbitrary ruby modules, irb console

The rest of this document is identical to upstream mruby repository: ...

What is mruby

mruby is the lightweight implementation of the Ruby language complying to (part of) the ISO standard. Its syntax is Ruby 1.9 compatible.

mruby can be linked and embedded within your application. We provide the interpreter program "mruby" and the interactive mruby shell "mirb" as examples. You can also compile Ruby programs into compiled byte code using the mruby compiler "mrbc". All those tools reside in the "bin" directory. "mrbc" is also able to generate compiled byte code in a C source file, see the "mrbtest" program under the "test" directory for an example.

This achievement was sponsored by the Regional Innovation Creation R&D Programs of the Ministry of Economy, Trade and Industry of Japan.

How to get mruby

The stable version 1.4.1 of mruby can be downloaded via the following URL: https://github.com/mruby/mruby/archive/1.4.1.zip

The latest development version of mruby can be downloaded via the following URL: https://github.com/mruby/mruby/zipball/master

The trunk of the mruby source tree can be checked out with the following command:

$ git clone https://github.com/mruby/mruby.git

You can also install and compile mruby using ruby-install, ruby-build or rvm.

mruby home-page

The URL of the mruby home-page is: http://www.mruby.org.

Mailing list

We don't have a mailing list, but you can use GitHub issues.

How to compile and install (mruby and gems)

See the doc/guides/compile.md file.

Running Tests

To run the tests, execute the following from the project's root directory.

$ make test

Or

$ ruby ./minirake test

How to customize mruby (mrbgems)

mruby contains a package manager called mrbgems. To create extensions in C and/or Ruby you should create a GEM. For a documentation of how to use mrbgems consult the file doc/guides/mrbgems.md. For example code of how to use mrbgems look into the folder examples/mrbgems/.

License

mruby is released under the MIT License.

Note for License

mruby has chosen a MIT License due to its permissive license allowing developers to target various environments such as embedded systems. However, the license requires the display of the copyright notice and license information in manuals for instance. Doing so for big projects can be complicated or troublesome. This is why mruby has decided to display "mruby developers" as the copyright name to make it simple conventionally. In the future, mruby might ask you to distribute your new code (that you will commit,) under the MIT License as a member of "mruby developers" but contributors will keep their copyright. (We did not intend for contributors to transfer or waive their copyrights, Actual copyright holder name (contributors) will be listed in the AUTHORS file.)

Please ask us if you want to distribute your code under another license.

How to Contribute

See the contribution guidelines, and then send a pull request to http://github.com/mruby/mruby. We consider you have granted non-exclusive right to your contributed code under MIT license. If you want to be named as one of mruby developers, please include an update to the AUTHORS file in your pull request.