#!/bin/bash

# base vars
NOW=$(date +%s) # epoch timestamp, eg: 1622772927
BASE_TAG=$(awk '$1 == "FROM" {print $2}' Dockerfile | cut -d\: -f2) # eg: 2.7.1
BUILD_TAG="fedora-${BASE_TAG}-${NOW}"
IMAGE_FILE="steamcmd-${BUILD_TAG}.img"

echo "Building image steamcmd:${BUILD_TAG}"
podman build --tag steamcmd:${BUILD_TAG} .
podman save localhost/steamcmd:${BUILD_TAG} > ${IMAGE_FILE}
echo ""
echo "Wrote ${IMAGE_FILE}, cleaning up"
podman rmi steamcmd:${BUILD_TAG}
echo ""
echo "Attempting to compress the image (begin comforting music)"
xz --keep --compress -9 --extreme --threads=$(nproc) ${IMAGE_FILE}
echo ""
echo "Finished, (non)compressed images created:"
ls --color=auto -lah ${IMAGE_FILE}*