Generate Bower.json from HTMLImports

bowerify.js

#!/usr/bin/env node
// builtin
var fs = require('fs');
var path = require('path');

// modules
var cheerio = require('cheerio');

var url = /\s*(?:\.\.\/)?components\/([\w-]+)\/.*/;
var dirDepends = {platform: 'Polymer/platform#master'};

function readFileDepends(map, f) {
  var $ = cheerio.load(fs.readFileSync(f, 'utf8'));
  $('link[rel="import"]').each(function() {
    var href = this.attr('href');
    if (href) {
      var match = url.exec(href);
      if (match && !map[match[1]]) {
        map[match[1]] = 'Polymer/' + match[1] + '#master';
      }
    }
  });
}

process.argv.slice(2).forEach(function(f) {
  readFileDepends(dirDepends, f);
});

var bower = {
  name: path.basename(process.cwd()),
  private: true,
  dependencies: dirDepends
};
console.log(JSON.stringify(bower, null, 2));

how-to-run.sh

find . ! -path "*/components/*" -name "*.html" | xargs node ../configure-imports.js > bower.json