b64e2.rb encode file to base64(data URL Scheme). b64e2.rb make "base64" directory and write encoded file. usage ruby b64e2.rb [filename]

b64e2.rb

require 'base64'
require 'mime/types'

def print_usage
  puts <<EOS

b64e2.rb encode file to base64(data URL Scheme).
b64e2.rb make "base64" directory and write encoded file.

usage
  ruby b64e2.rb [filename]

EOS
  abort
end

filename = ARGV[0]
print_usage if filename.nil? || !File.exists?(filename)

mime_type    = MIME::Types.type_for(filename)[0].to_s
encoded_text = Base64.strict_encode64(open(filename).read)
dir_path     = File.dirname(filename) + "/base64"
basename     = File.basename(filename, ".*")

Dir::mkdir(dir_path) unless File.exists?(dir_path)
File.open("#{dir_path}/#{basename}", "w") do |file|
  file.write "data:#{mime_type};base64,#{encoded_text}"
end