#!/bin/sh

# Generates three variants of the rpi-eeprom-recovery.zip file for
# SD, USB and NETWORK priority matching the raspi-config options.

set -e

script_dir=$(cd "$(dirname "$0")" && pwd)
tmp_dir=""

die() {
   echo "$@" >&2
   exit 1
}

cleanup() {
   if [ -d "${tmp_dir}" ]; then
      rm -rf "${tmp_dir}"
   fi
   tmp_dir=""
}

gen_release() {
   config="${1}"
   out="${2}"

   [ -f "${config}" ] || die "File not found \"${config}\""

   (
      tmp_dir="$(mktemp -d)"
      cd "${tmp_dir}"
      cp "${script_dir}/vl805.bin" .
      cp "${script_dir}/README.txt" .
      sha256sum vl805.bin | awk '{print $1}' > vl805.sig

      "${script_dir}/../rpi-eeprom-config" \
         --config "${script_dir}/${config}" --out pieeprom.bin \
         "${script_dir}/pieeprom.bin" || die "Failed to create update EEPROM config with  \"${config}\""
      sha256sum pieeprom.bin | awk '{print $1}' > pieeprom.sig
      echo "Creating ${out}"
      zip "${out}" *
   )
}

usage() {
cat <<EOF
   make-release <tag>

   Example tag "2020-09-03-vl805-000138a1"
EOF
exit
}

trap cleanup EXIT
tag="${1}"
[ -n "${tag}" ] || usage
release_dir="${script_dir}/release"
rm -rf "${release_dir}"
mkdir "${release_dir}"

# Build the different boot priority flavours
gen_release boot-conf-default.txt "${release_dir}/rpi-boot-eeprom-recovery-${tag}.zip"
gen_release boot-conf-sd.txt "${release_dir}/rpi-boot-eeprom-recovery-${tag}-sd.zip"
gen_release boot-conf-usb.txt "${release_dir}/rpi-boot-eeprom-recovery-${tag}-usb.zip"
gen_release boot-conf-network.txt "${release_dir}/rpi-boot-eeprom-recovery-${tag}-network.zip"