Fetch a DB Backup from another server on EY

pull_ey_db_backup.rb

#!/usr/bin/ruby
if ARGV.size < 1
  puts "you need to supply bucket"
  exit
end
bucket = ARGV[1]
puts "fetching list of prod backups"
list = `sudo /usr/local/ey_resin/bin/eybackup -l BAM -e mysql -b #{bucket}` 
puts list.split("\n")
latest_file = list.split('\n').first.split("\n").select{|ea| ea =~ /^[0-9]*:/}.last
latest_index = latest_file.split(":").first
puts "Downloading #{latest_file}"
`sudo /usr/local/ey_resin/bin/eybackup -e mysql -d #{latest_index}:BAM -b #{bucket}`