@polymer/iron-icons/util/concat-svg.js

A set of icons for use with iron-icon

#!/usr/bin/env node
/*
 * @license
 * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
 * This code may only be used under the BSD style license found at
 * http://polymer.github.io/LICENSE.txt The complete set of authors may be found
 * at http://polymer.github.io/AUTHORS.txt The complete set of contributors may
 * be found at http://polymer.github.io/CONTRIBUTORS.txt Code distributed by
 * Google as part of the polymer project is also subject to an additional IP
 * rights grant found at http://polymer.github.io/PATENTS.txt
 */

var fs = require('fs');
var cheerio = require('cheerio');
var path = require('path');

var cheerioOptions = {xmlMode: true};
var files = process.argv.slice(2);

function read(file) {
  var content = fs.readFileSync(file, 'utf8');
  return cheerio.load(content, cheerioOptions);
}

function transmogrify($, name) {
  var node = $('svg');
  // remove spacer rectangles
  node.find('[fill=none]').remove();
  // remove fill attribute
  node.find('[fill]').each(function(i, e) {
    $(e).attr('fill', null);
  });
  // remove empty groups
  var innerHTML = $.xml(node.children());
  // add parent group with icon name as id
  var output = '<g id="' + name + '">' + innerHTML + '</g>';
  // print icon svg
  console.log(output);
}

function path2IconName(file) {
  parts = path.basename(file).split('_');
  // remove ic_
  parts.shift();
  // remove _24px.svg
  parts.pop();
  return parts.join('-');
}

files.forEach(function(file) {
  var name = path2IconName(file);
  var $ = read(file);
  transmogrify($, name);
});