git-blame-stats

#!/usr/bin/env ruby

freqs = Hash.new(0)
files = `find . -name "*.java" -print`
results = files.split("\n").map do |filename|
  `git blame #{filename}`
end.map do |blame_result| 
  blame_result.split("\n")
end.each do |blame_result_array|
  blame_result_array.map do |blame_line|
    blame_line.split("(")[1]
  end.map do |blame_up_to_paren|
    blame_up_to_paren.split(" ")[0]
  end.each do |username|
    freqs[username] = freqs[username] + 1
  end
end
puts freqs