Simple Ruby + Git script to get a commit leaderboard for your repository.

git_commit_leaderbord.rb

def leaderboard(project)
  leaderboard = []
  committers = `cd ~/#{project}; git checkout master; git shortlog -nse  --no-merges --since={last.month}`
  
  committers.split("\n").each do |committer|
    c = committer.split("\t")
    leaderboard.push name: c.last.split('<').first.strip, values: [c.first.to_i]
  end
 
  leaderboard
end