capでディストリビューション判別

get_dist.capistrano.rb

distribution={}
task :get_dist do
  run "test -f /etc/redhat-release && cat /etc/redhat-release || true" do |channel, stream, data|
    if data
      release = data.split ' '
      distribution[:type] = release[0].to_sym
      distribution[:version] = release[2].to_f
    end
  end
  run "test -f /etc/debian_version && cat /etc/debian_version || true" do |channel, stream, data|
    if data
      distribution[:type] = :Debian
      distribution[:version] = data.to_f
    end
  end
end