git_info_short.rb

def git_info
  @@info ||= begin
    {
      :application => app_name = (Rails.application.class.to_s.split('::').first rescue ""),
      :environment => Rails.env,
      :remote_url => `git remote -v`,
      :remote_branch => `git branch -r`,
      :last_commit => `git log --max-count=1`
    }
  rescue
    {}
  end
end