#! /bin/sh -e

thisyear=$(date +%Y)
last=nil

flush () {
  case $last in nil) return ;; esac
  (cd tmp/rollup/all && tar cfz - .) >tmp/rollup/$last-all.tgz
  mv tmp/rollup/$last-all.tgz archive/
  rm -f archive/$last-??-??T??:??:??Z.tgz
  rm -rf tmp/rollup/all
}

rm -rf tmp/rollup; mkdir -p tmp/rollup
for i in archive/????-??-??T??:??:??Z.tgz; do
  base=${i##*/} year=${base%%-*}
  case $year in
    $thisyear) break ;;
    $last) ;;
    *) flush; mkdir tmp/rollup/all; last=$year ;;
  esac
  mkdir tmp/rollup/cur
  (cd tmp/rollup/cur && tar xfz -) <$i
  mv tmp/rollup/cur/cert.* tmp/rollup/all/
  for j in tmp/rollup/cur/*; do
    base=${j##*/}
    case $base in
      cert.*)
	mv tmp/rollup/cur/$base tmp/rollup/all/
	;;
      *)
	cat tmp/rollup/cur/$base >>tmp/rollup/all/$base;
	rm tmp/rollup/cur/$base
	;;
    esac
  done
  rmdir tmp/rollup/cur
done
flush
rmdir tmp/rollup