Google calendar to KML

Gemfile

source :rubygems

gem 'dotenv', :groups => [:development, :test]

gem "nokogiri"
gem "geocoder"

main.rb

require 'dotenv'
require 'open-uri'
require 'nokogiri'
require 'geocoder'

def kml_from_xml(google_calendar_xml_url)
  data = open google_calendar_xml_url
  feed = Nokogiri::XML data

  builder = Nokogiri::XML::Builder.new do
    kml('xmlns' => 'http://www.opengis.net/kml/2.2') do
      Document do
        feed.css('entry').each do |event|
          title = event.css('title').inner_text
          where = event.css('gd|where').attribute('valueString')
          geo = Geocoder.search(where).first

          Placemark do
            name title
            description title
            Point do
              coordinates "#{geo.coordinates[1]},#{geo.coordinates[0]}"
            end
          end
        end
      end
    end
  end
  builder.to_xml
end

Dotenv.load
puts kml_from_xml(ENV['CALENDAR_URL'])