json.commits commits do |commit|
  json.title commit["title"]
  json.time time_from_now(commit["created_at"])
  json.id commit["id"]

  user = git_username(commit["author_email"])
  if user.present?
    json.author do
      if user
        json.partial! 'users/user', user: user
      end
    end
  else
    json.author do
      json.id nil
      json.login nil
      json.image_url "avatars/User/b"
      json.name commit["author_name"]
      json.email commit["author_email"]
    end
  end
end