#!/bin/bash

# build: Bootstrap a base Hyperbola GNU+Linux-libre system.

set -e -u -o pipefail

SCRIPT=$(readlink -f "$0")
SCRIPT_PWD=$(dirname "$SCRIPT")
CHROOT_DELETE='y'

RESULTPATH=${SCRIPT_PWD}/
ARCH="x86_64"
REPO_URL="https://mirror.fsf.org/hyperbola/gnu-plus-linux-libre/testing"
DOWNLOAD_DIR="/tmp/bootstrap-packages"

ROOTFS=$(mktemp -d)
mkdir -p "$ROOTFS"
# remove old archives
rm -f "${RESULTPATH}/hyperbola-bootstrap.tar.gz" "${RESULTPATH}/hyperbola-bootstrap.tar.gz.sha512sum"

# bootstrap
"${SCRIPT_PWD}/hyper-bootstrap.sh" -a "${ARCH}" -r "${REPO_URL}" -d "${DOWNLOAD_DIR}" "${ROOTFS}"

cd "${ROOTFS}"
# clean up package cache
rm -rf var/cache/*
# create new archive
tar -czf "${RESULTPATH}/hyperbola-bootstrap.tar.gz" --transform "s|^|root.${ARCH}/|" --owner 0 --group 0 -- \
    bin dev home media opt root sbin sys usr lib64 \
    boot etc lib mnt proc run srv tmp var

sha512sum "${RESULTPATH}/hyperbola-bootstrap.tar.gz" >| "${RESULTPATH}/hyperbola-bootstrap.tar.gz.sha512sum"

# clean chroot temp
case $CHROOT_DELETE in
    y) rm -rf "${ROOTFS}" || true && echo -e "\e[1;32m==>\e[0m\033[1m Temporal chroot deleted! \e[m" ;;
    n) echo 'temporal chroot available' ;;
    *) echo 'invalid_option "$@"' ;;
esac

# report result
echo "REPO: $REPO_URL"
echo "DOWNLOAD_DIR: $DOWNLOAD_DIR"
echo "ROOTFS: $ROOTFS"
echo "RESULTPATH: $RESULTPATH"