Overview

Build Ruby files to WebAssembly with mruby. This repo contains the compile toolchain for ruby to wasm, with docker.

Usage

Setup Docker

cd docker-machine
docker build -t awin/emcc-mruby .

Build WebAssembly

cd intro
docker run \
  --rm \
  -v $(pwd):/src \
  -u emscripten \
  awin/emcc-mruby \
  ruby_wasm build hello.rb

This should generate app.js and app.wasm in the intro directory.

Serve the Files

cd intro
ruby server.rb

And open http://localhost:8000 in the browser. In developer tools console, you should find the console statement

Credits

• Tom Black for the Ruby on WebAssembly article, and the wasm gem.
• Piotr Paczkowski for the base docker image (github repo)