#!/bin/sh

pmlf=$1
if [ ! "$pmlf" ]
then
  echo "Give a filename!" >&2
  exit 1
fi

stepsarg=$2

if [ "$stepsarg" ]
then
  echo "Replaying $stepsarg steps." >&2
  stepsarg=-u$stepsarg
else
  echo "Replaying all steps." >&2
fi

exec spin -v $stepsarg -t "$pmlf"