Ruby script that converts frab xml output file into info-beamer schedule.json file needed for https://github.com/dividuum/info-beamer-nodes/tree/master/30c3-room

frab_xml2info-beamer_json.rb

require "rexml/document"
require 'pathname'
require 'json'
require 'date'

SCHEDULE_XML = Pathname('schedule.xml')
               # C01 or B05/B06 or B07/B08 or A08
ROOM_PATTERN = 'C01|B05\/B06|B07\/B08|B09|A08'
               # Lunch or Coffe Break or Breakfast
SKIP_EVENTS  = '[Ll]unch|[Cc]offee\s[Bb]reak|[Bb]reakfast'

def convert_duration_into_minutes(duration)
  hour, minutes = duration.split(':')
  hour.to_i*60+minutes.to_i
end

def read_schedule(xml_file)
  REXML::Document.new File.read(xml_file)
end

def write_schedule_json(array)
  File.open(Pathname('schedule.json'), 'w') { |file| file.write(array.to_json) }
end

events = read_schedule(SCHEDULE_XML).get_elements('//event')
all_events = []

events.each do |event|
  next unless event.elements['room'].text =~ /#{ROOM_PATTERN}/
  next if event.elements['title'].text =~ /#{SKIP_EVENTS}/

  hash = {}

  hash['duration'] = convert_duration_into_minutes(event.elements['duration'].text)

  event.elements['language'] ? hash['lang']   = event.elements['language'].text : hash['lang']   = ''

  hash['place']    = event.elements['room'].text
  hash['speakers'] =  event.get_elements('./persons').map{ |p| p.elements['person'].text }
  hash['start']    = event.elements['start'].text
  hash['title']    = event.elements['title'].text
  hash['type']     = event.elements['type'].text
  hash['unix']     = DateTime.parse(event.elements['date'].text).to_time.to_i
  hash['unix_end'] = (DateTime.parse(event.elements['date'].text).to_time + hash['duration']).to_i

  all_events << hash
end

write_schedule_json(all_events)