#!/bin/bash

verilog=$1

usage=$(cat << EOF
Usage: ./export_json.sh <verilog>

Dependencies:
* include the path to "verible-verilog-syntax" in PATH
  * download [verible](https://github.com/chipsalliance/verible/releases)
* install "jq" using a package manager from your OS
  * or skip the last command in the pipe
EOF
)

if [[ -f $verilog ]] ; then
	verible-verilog-syntax --printtree --export_json $verilog | tr -d ' \t\n' | sed -e "s/,null//g" -e "s/null,//g" | jq
else
	echo "$usage"
	echo ""
fi