config/environment.js

gistfile1.js

var fs    = require('fs'),
    path  = './bower_components/fontawesome/scss/_icons.scss',
    regex = /\.#{\$fa-css-prefix}([-|\w]+):before/g,
    match,
    data;

ENV.APP.awesomeness = [];

data = fs.readFileSync(path, 'utf8');
while(match = regex.exec(data)) {
  if(match[1]) {
    ENV.APP.awesomeness.push("fa" + match[1]);
  }
}