A command line tool for uploading a file to a S3 and printing the private, expiring URL to STDOUT. Stick it in your ~/bin, chmod u+x and upload like it's 1999.

upload_to_s3

#!/usr/bin/env ruby
#
# Uploads a file to a S3 and prints a private, expiring URL to STDOUT
#
# Requirements: aws-s3 gem

if ARGV.length != 3
  abort "Usage: #{$0} FILE BUCKET EXPIRY_IN_SECONDS"
end

file, bucket, expiry = ARGV

require 'aws/s3'

unless (id = ENV['AMAZON_ACCESS_KEY_ID']) && (secret = ENV['AMAZON_SECRET_ACCESS_KEY'])
  abort "AMAZON_ACCESS_KEY_ID and AMAZON_SECRET_ACCESS_KEY env vars must be set"
end

AWS::S3::Base.establish_connection!(access_key_id: id, secret_access_key: secret)

AWS::S3::Bucket.create(bucket)

AWS::S3::S3Object.delete(file, bucket) if AWS::S3::S3Object.exists?(file, bucket)

AWS::S3::S3Object.store(file, open(file), bucket)

puts AWS::S3::S3Object.url_for(file, bucket, expires_in: expiry)