jq-fun.sh

#!/bin/bash

set -eo pipefail

json="{}"

while test $# != 0
do
  case "$1" in
  --env-var1=*)
    json=$(env_var1="${1#*=}" json="$json" jq -sn "(env.json|fromjson) * {\"ENV_VAR1\": env.env_var1}")
    ;;
  --env-var2=*)
    json=$(env_var2="${1#*=}" json="$json" jq -sn "(env.json|fromjson) * {\"ENV_VAR2\": env.env_var2}")
    ;;
  *)
    echo "I don't know how to do that"
    ;;
  esac
  shift
done

echo $json