i_love_deleting_code.sh

wget -O ~/deleting_code.mp3 https://dl.dropbox.com/u/2233/deleting_code.mp3

echo '#!/usr/bin/env ruby

deletions = `git diff HEAD --numstat`.lines.to_a.map do |l|
  l.split(" ")
end.map do
  |(add,del,_)| del.to_i - add.to_i
end.inject(:+).to_i

Process.fork do
  `afplay #{ENV["HOME"]}/deleting_code.mp3` if deletions > 0
end' > .git/hooks/pre-commit

chmod u+x .git/hooks/pre-commit