#!/bin/sh

set -eu

IMAGE_NAME="${IMAGE_NAME:-rocky9-source-stack}"
SCRIPT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)

if [ -n "${CONTAINER_ENGINE:-}" ]; then
    ENGINE=$CONTAINER_ENGINE
elif command -v docker >/dev/null 2>&1; then
    ENGINE=docker
elif command -v podman >/dev/null 2>&1; then
    ENGINE=podman
else
    echo "Error: Docker or Podman is required." >&2
    exit 1
fi

echo "Building image $IMAGE_NAME with $ENGINE ..."
exec "$ENGINE" build --tag "$IMAGE_NAME" "$SCRIPT_DIR"