#!/usr/bin/env bash

set -euo pipefail

ensure_docker() {
	local error_message=${1:-docker is required. Install Docker first.}

	if ! command -v docker >/dev/null 2>&1; then
		printf '%s\n' "$error_message" >&2
		exit 1
	fi
}

remove_docker_image_if_present() {
	docker image rm -f "$1" >/dev/null 2>&1 || true
}

remove_docker_volume_if_present() {
	docker volume rm -f "$1" >/dev/null 2>&1 || true
}