#!/usr/bin/env bash

pacman -Qi $(pactree -u "$1") | awk '/^Installed Size/ {
  size=$4
  if ($5 == "KiB") size /= 1024
  if ($5 == "GiB") size *= 1024
  if ($5 == "B") size /= 1048576
  total += size
} END {
  printf "Total ecosystem size: %.2f MiB\n", total
}'