#!/usr/bin/env bash
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ROOT_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
source "${SCRIPT_DIR}/package_common.sh"

require_command git
require_command sha256sum

VERSION="$(project_version)"
PACKAGE_NAME="$(project_name)"
ARCH_DIST_DIR="${DIST_DIR}/arch"
TARBALL_NAME="${PACKAGE_NAME}-${VERSION}.tar.gz"
TARBALL_PATH="${ARCH_DIST_DIR}/${TARBALL_NAME}"
PKGBUILD_PATH="${ARCH_DIST_DIR}/PKGBUILD"

mkdir -p "${ARCH_DIST_DIR}"

git -C "${ROOT_DIR}" archive \
  --format=tar.gz \
  --prefix="${PACKAGE_NAME}-${VERSION}/" \
  HEAD \
  > "${TARBALL_PATH}"

TARBALL_SHA256="$(sha256sum "${TARBALL_PATH}" | awk '{print $1}')"

render_template \
  "${ROOT_DIR}/packaging/arch/PKGBUILD.in" \
  "${PKGBUILD_PATH}" \
  "VERSION=${VERSION}" \
  "TARBALL_NAME=${TARBALL_NAME}" \
  "TARBALL_SHA256=${TARBALL_SHA256}"

echo "generated ${PKGBUILD_PATH}"
echo "generated ${TARBALL_PATH}"

if [[ "${BUILD_ARCH_PACKAGE:-0}" == "1" ]]; then
  require_command makepkg
  (
    cd "${ARCH_DIST_DIR}"
    makepkg -f
  )
fi