#!/bin/sh

# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2009-2016 Stephan Raue (stephan@openelec.tv)
# Copyright (C) 2018-present Team LibreELEC (https://libreelec.tv)

GIT_DIR="raspberrypi-firmware.git"

echo "getting sources..."
  if [ ! -d "${GIT_DIR}" ]; then
    git clone https://github.com/raspberrypi/firmware.git --depth=1 -b master "${GIT_DIR}"
  fi

  cd "${GIT_DIR}"
    git fetch
    if [ $# -eq 1 ]; then
      git checkout "$1"
    else
      git checkout origin/master
    fi
    GIT_REV=$(git log -n1 --format=%H)
  cd ..

BOOT_DIR="${GIT_DIR}/boot"
PKG_DIR="bcm2835-bootloader-${GIT_REV}"

echo "copying sources..."
  rm -rf "${PKG_DIR}"
  mkdir -p "${PKG_DIR}"
    cp \
      "${BOOT_DIR}"/LICENCE* \
      "${BOOT_DIR}"/bootcode.bin \
      "${BOOT_DIR}"/fixup*.dat \
      "${BOOT_DIR}"/start*.elf \
      "${PKG_DIR}"

echo "packing sources..."
  tar cvJf "${PKG_DIR}.tar.xz" "${PKG_DIR}"

echo "remove temporary sourcedir..."
  rm -rf "${PKG_DIR}"