runner.sh

#!/bin/bash

# $> runner.sh <lib> <spec>
# Demo: http://recordit.co/7eR5hp1BP1

watch_dir=$1
watch_dir2=$2

dir_hashes () {
  find $1 $2 -type f -exec md5 '{}' ';' | awk '{print $4}'
}

run_rspec () {
  clear
  bundle exec rspec spec
  current_hashes=( $(dir_hashes $watch_dir $watch_dir2) )
}

current_hashes=( $(dir_hashes $watch_dir $watch_dir2) )

while :
do
  live_hashes=( $(dir_hashes $watch_dir $watch_dir2) )

  [ "${current_hashes[*]}" == "${live_hashes[*]}" ] || run_rspec

  sleep 1
done