Bower support for Metalsmith

bower.js

/**
 * Attempt to port into plain JavaScript bower.coffee MetalSmith plugin and configure it.
 * 
 * source: https://gist.github.com/wspringer/5f404813fc9a306b8c80
 **/
var  lib = require('bower-files')()
    ,basename = require('path').basename
    ,readFileSync = require('fs').readFileSync;

module.exports = function(files, metalsmith, done) {
  var include;
  include = function(root, included) {
    var contents, file, i, len, results;
    results = [];
    for (i = 0, len = included.length; i < len; i++) {
      file = included[i];
      contents = readFileSync(file);
      results.push(files[root + "/" + (basename(file))] = {
        contents: contents
      });
    }
    return results;
  };
  include('css', lib.self().ext('css').files);
  include('js', lib.self().ext('js').files);
  include('fonts', lib.self().ext(['eot', 'otf', 'ttf', 'woff']).files);
  return done();
};