s3_migrate.rb

#!/usr/bin/env ruby

require 'csv'

def usage
  puts "s3_migrate.rb \nUsage: $0 <bucket_name> <input_csv>"
end

IMAGE = 0
ORG_ID = 2
CLASS_ID = 3
YEAR = 4
MONTH = 5
def main
  if ARGV.size < 2
    usage()
    exit
  end

  bucket = ARGV[0]
  csv = CSV.read(ARGV[1], {}).to_a

  csv.each do |row|
    puts "processing #{row[IMAGE]}"
    copy_command = "aws s3 cp s3://#{bucket}/#{row[IMAGE]} s3://#{bucket}/#{row[ORG_ID]}/#{row[CLASS_ID]}/#{row[YEAR]}/#{row[MONTH]}/#{row[IMAGE]}"
    system copy_command
  end
end

main if __FILE__ == $0