write js lat,long,avg colour to stdout

writeLatLongJSAvgColourStdout.rb

#!/usr/bin/env ruby
require 'json'
require 'pp'

pages = 0
total = 0
perpage = 0

ARGF.each_line do |line|
  serializedJSON = line
  flickr_data_page =  JSON.parse(serializedJSON)
  page = flickr_data_page["photos"]["page"].to_i
  if page == 1
    total = flickr_data_page["photos"]["total"].to_i
    perpage = flickr_data_page["photos"]["perpage"].to_i
    pages = flickr_data_page["photos"]["pages"].to_i
  end
  if page == pages
    num_photos = total % perpage
  else
    num_photos = perpage
  end
  $stderr.printf "page:%d of:%d\n", page, pages
  0.upto num_photos-1 do |photo_index|
    if  flickr_data_page["photos"]["photo"][photo_index].has_key?("avg_colour_m")
      printf("[%s,%s,0x%s],\n", flickr_data_page["photos"]["photo"][photo_index]["latitude"],
             flickr_data_page["photos"]["photo"][photo_index]["longitude"],
             flickr_data_page["photos"]["photo"][photo_index]["avg_colour_m"]["variable"][6]["statistic"][0]["hex"]
      )
    end
  end
end

reads serialized JSON flickr metadata with average colour
writes array of [lat,long,avg colour] to stdout