Wrapper around SBConstants that warns if not installed.

runSBConstants.sh

#!/bin/bash

SWIFT_ARGS=

while getopts w opt; do
  case $opt in
  w)
      SWIFT_ARGS='-w'
      ;;
  esac
done
shift $((OPTIND-1))

sbconstantsPath=`which sbconstants`
echo ${sbconstantsPath}
if [[ ! -f ${sbconstantsPath} || -z ${sbconstantsPath} ]]; then
    echo "WARNING: Skipping Storyboard Constants generation. Install sbconstants to make things easier
        gem install sbconstants
        https://github.com/paulsamuels/SBConstants"
        exit 0;
fi

sbconstants $SWIFT_ARGS $1