+GIT_DIR=`git-rev-parse --git-dir` || exit $?
+
+dc </dev/null 2>/dev/null || {
+ # This is not a real DC at all -- it just knows how
+ # this script feeds DC and does the computation itself.
+ dc () {
+ while read a b
+ do
+ case $a,$b in
+ 0,) acc=0 ;;
+ *,+) acc=$(($acc + $a)) ;;
+ p,) echo "$acc" ;;
+ esac
+ done
+ }
+}