Upload/download files to/from S3

s3.rb

# Upload local file at filepath to <fog_directory>/directory/filename
def upload_file(filepath, directory, filename: nil, acl: 'public-read')
  filename ||= File.basename(filepath)

  s3 = Aws::S3::Resource.new(region: region)
  obj = s3.bucket(bucket).object("#{directory}/#{filename}")
  obj.upload_file(filepath, acl: acl)
end

# Download file from <fog_directory>/remote_filepath to local filepath
def download_file(remote_filepath, filepath)
  filepath ||= File.basename(remote_filepath)

  s3 = Aws::S3::Resource.new(region: region)
  obj = s3.bucket(bucket).object(remote_filepath)

  # Create local directories since the Aws object doesn't
  dirname = File.dirname(filepath)
  FileUtils.mkdir_p(dirname) unless File.directory?(dirname)

  obj.get(response_target: filepath)
end