WWDC2013 session video renaming script

wwdc_rename.rb

require 'nokogiri'

doc = Nokogiri::HTML(File.open("Videoswwdc.html"))
items = {}
doc.xpath("//li[@class='session']").each do |session|
  session_id = session['id'].sub('-video', '').to_i
  title = session.children.xpath("li[@class='title']").text
  items[session_id] = title
end

# items.each {|k,v| puts "#{k} => #{v}"}


# PREFIX="/Volumes/GTech/WWDC2013/"
PREFIX="/Users/kim/Downloads/"
files = Dir["#{PREFIX}*-[SH]D.mov"]
base_names = files.map {|d| d.sub(PREFIX, '') }

renames = files.zip base_names.map { |f| 
  num = f.to_i
  title = items[num]
  vdef = f['SD'].nil? ? 'HD' : 'SD'
  new_name = "#{PREFIX}WWDC2013 #{num} - #{title} - #{vdef}.mov"
}
# would rather confirm this and copy the command into terminal
renames.each do |a,b|
  puts "mv \"#{a}\" \"#{b}\""
end