git-most-touched-files

#!/usr/bin/env ruby

freqs = Hash.new(0)

commits = `git log --pretty=oneline --abbrev-commit`.split("\n").map do |line|
  line.split(" ")[0]
end

commits.map do |sha|
  `git show --pretty="format:" --name-only #{sha}`
end[1..-1].map do |files|
  files.split("\n").each do |file|
    freqs[file] = freqs[file] + 1
  end
end
output = ""
freqs.each_pair do |key, value|
  output = output + "\n" + value.to_s + ": " +key
end
puts `echo "#{output}" | sort`