Bash fun to setup variables from a prefixed environment variables

env_setup.sh

#! /bin/bash

set -e

# Below will find env vars prefixed with ${CI_ENVIRONMENT} and set env vars without the prefix to the prefixed value
# e.g. if ${development_CTP_CLIENT_SECRET} is defined, define $CTP_CLIENT_SECRET with the value from ${development_CTP_CLIENT_SECRET}
while read -r line
do
  non_prefixed=${line#"${CI_ENVIRONMENT}_"}
  declare -x $non_prefixed=${!line}
done < <(compgen -A variable | grep "${CI_ENVIRONMENT}")