modulr is a CommonJS module implementation
in Ruby for client-side JavaScript. It accepts a singular file as input (the program) on
which is does static analysis to recursively resolve its dependencies.
The program, its dependencies and a small, namespaced JavaScript library are
concatenated into a single js file. This improves load times by
minimizing HTTP requests.
Further load time performance improvements are made possible by the built-in
lazy evaluation
option. Modules are delivered as JavaScript strings--instead of functions--and are
evaluated only when required.
The bundled JavaScript library provides each module with the necessary require
function and exports and module free variables.
$ [sudo] gem install modulr
modulr is available as a Ruby library or as a command-line utility (modulrize).
To process a JavaScript source file, just run:
$ modulrize filename.js > output.js
For a comprehensive list of options:
$ modulrize --help"
To run the specs, first clone the Git repository then grab the CommonJS specs, included as a Git submodule, by running:
$ git clone git://github.com/codespeaks/modulr.git
$ cd modulr
$ git submodule init
$ git submodule update
Mozilla's SpiderMonkey is required
and the js command line executable must be available on the load path (try which js).
You can run all the specs by issuing:
$ rake spec
Alternatively, a list of comma-separated specs can be specified through the SPECS
environment variable (see vendor/commonjs/tests/modules/1.0) for a comprehensive
list of available specs).
$ rake spec SPECS=absolute,transitive