ensureSuccess.sh

#!/bin/sh

# Checks that the given error code is zero. If not, exits the script after printing the given error message.
# @param 1    the return code to check.
# @param 2    the error message to display in case the given error code is non-zero.
# @stdout     nothing in case of success, the given error message otherwise.
ensureSuccess() {
	if [[ $1 -ne 0 ]]; then
		echo
		echo "Error: $2"
		echo "ABORTING!"
		exit 1
	fi
}