#!/bin/bash

if ! [ -x "$(command -v pigz)" ]; then
	echo >&2 "I require pigz but it's not installed.  Aborting."
	exit 1
fi

if [ "$#" -eq "2" ]; then
	dt=$(date --iso-8601)
	threads=$(nproc --all)
	filename="${1}_${dt}.tar.gz"
	echo "[$0] Compressing ${@:2} into ${filename}"
	tar cf - ${@:2} | pigz -9 -p "${threads}" > "${filename}"
else
	echo "[$0] Usage: $0 compressed_file_name files_or_dir_to_be_compressed"
fi