converter.rb

#!/usr/bin/ruby

require 'csv'

print "CSV file to read: "
input_file = gets.chomp

print "File to write XML to: "
output_file = gets.chomp

csv = CSV::parse(File.open(input_file) {|f| f.read} )
fields = csv.shift

puts "Writing XML..."

File.open(output_file, 'w') do |f|
  f.puts '<?xml version="1.0" encoding="UTF-8"?>'
  f.puts '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">'
  csv.each do |record|
    f.puts ' <url>'
    for i in 0..(fields.length - 1)
      f.puts "  <loc>#{record[i]}</loc>"
    end
    f.puts '  <changefreq>weekly</changefreq>'
    f.puts '  <priority>0.8</priority>'
    f.puts ' </url>'
  end
  f.puts '</urlset>'
end # End file block - close file

puts "Contents of #{input_file} written as XML to #{output_file}."