Faye is implemented in both JavaScript and Ruby. You should be able to hack on each implementation independently, although since both implementations include a build of the JS client, you will need Node if you want to build the Ruby gem.
To get the code:
git clone git://github.com/faye/faye.git
cd faye
## Working on the JavaScript codebase
To install the dependencies (you will need to do this if you need to build the Ruby gem as well):
npm install
To run the tests on Node:
npm test
To run the tests in the browser, you should run
make test
which starts a process to continuously rebuild the source code and tests as you
edit them. Open spec/index.html to run the tests.
To build the package that we release to npm, run:
make
## Working on the Ruby codebase
To install the dependencies:
bundle install
To run the tests:
bundle exec rspec
To build the gem (you will need to install the Node dependencies for this):
make gem