Generates a CSV of fields on entities to be used on migration map spreadsheets

Drupal field migration map

// ==UserScript==
// @name         FieldCollector
// @namespace    drupal
// @version      0.1
// @description  Gets list of fields from field ui and creates a CSV, you need to be on the Manage fields tab and Console must be open. Useful to create migration mappings. Copy the list of fields, paste on google docs and go to Data/Split text to columns
// @author       Marcelo Vani
// @match        http://*/*
// @grant        none
// @require      http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js
// ==/UserScript==
$(document).ready(function() {
    var fields = [];
    fields.push('Label, Machine name, Field type, Migrate to');
    var trs = jQuery('.field-ui-overview').find('tr');
    jQuery.each( trs, function( i, tr ) {
        var id = $(tr).attr('id');
        if (typeof id != 'undefined') {
            var label = $(tr).find("td:nth-child(1)").text();
            var machine_name = $(tr).find("td:nth-child(4)").text();
            var field_type = $(tr).find("td:nth-child(5)").text();
            fields.push(label + ',' + machine_name + ',' + field_type + ',');
        }
    });
    var csv = fields.map(function(d){
        return d.trim();
    }).join('\n');
    console.log(csv);
});