a small game that asks you to guess the author of a line of code.

code_author.rb

# Usage: ruby code_author.rb in a git repo.
score_file = "#{ENV['HOME']}/.code_author_guessing_game_score"
score = File.new(score_file, "a+").read.to_i

puts "Current score is: #{score}!"
files = `git ls-files`.split("\n")
code = ""
until code.length > 10
  filename = files.sample
  line = `git blame #{filename}`.split("\n").sample
  name = line.match(/\((\w+ \w+)/)[1]
  code = line.split(/\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2} -\d{4}\W+\d+\)/).last
end
puts "filename: #{filename}"
puts "Identify this code snippet: #{code}"

committers = `git shortlog -sn`.split("\n").map { |l| l.split(" ").last(2).join(" ") }
committers.each_with_index do |committer, index|
  puts "#{index}: #{committer}"
end
guess = gets.to_i
correct = committers[guess] == name
puts correct ? "Correct!" : "Incorrect!"
score += correct ? 1 : -1
File.write(score_file, score)

puts "New score is: #{score}!"