git audio macos only

git-audio

#!/usr/bin/env ruby

require 'base64'
require 'tempfile'

if ARGV.count == 0
  puts <<~HELP
    Usage: git audio [command]

    Commands available:
    - git audio commit path_to_audio.mp3
      It will create a commit with a audio embed in it
    - git audio show commit_hash
      It will play an audio associated with a commit
  HELP
end

AUDIO_START= '==AUDIO=='

command = ARGV.first
if command == 'commit'
  path_to_audio = ARGV[1]
  # no new lines in generated base64
  encoded_audio = Base64.strict_encode64(File.read(path_to_audio))
  `git commit -m '#{encoded_audio}'`
elsif command == 'show'
  commit_hash = ARGV[1]
  # get only commit description
  encoded_audio = `git log --format=%B -n 1 #{commit_hash}`
  file = Tempfile.new("git-audio")
  file.write(Base64.decode64(encoded_audio))
  `afplay #{file.path}`
  file.close
end