demo: Error out when .env does not exist
set -aueo pipefail
+if [ ! -f .env ]; then
+ echo -e "\nThere is no .env file in the root of this repository."
+ echo -e "Copy the values from .env.example into .env."
+ echo -e "Modify the values in .env to match your setup.\n"
+ echo -e " cat .env.example > .env\n\n"
+ exit 1
+fi
+
# shellcheck disable=SC1091
source .env
