#

# set +o errexit -o noglob -o nounset is assumed.

#

pkg_fetch_download_clean_dlcache() {

	local	_dlcachedir="${1}" _pkg_name="${2}" _pkg_fname="${3}" _pkg_urls_git="${4}"\

		_fname="" _pkg_urls_git_dname="";

	if [ -n "${_pkg_urls_git}" ]; then

		_pkg_urls_git_dname="${_pkg_urls_git%%=*}";

		_pkg_urls_git_dname="${_pkg_urls_git_dname##*/}";

	fi;

	for _fname in $(cd "${_dlcachedir}/${_pkg_name}" && find		\

			-mindepth 1						\

			${_pkg_fname:+-not -name "${_pkg_fname}"}		\

			${_pkg_fname:+-not -name "${_pkg_fname}.fetched"}	\

			${_pkg_urls_git_dname:+					\

			-not -path "./${_pkg_urls_git_dname}"			\

			-not -path "./${_pkg_urls_git_dname}/*"			\

			-not -path "./${_pkg_urls_git_dname}.git"		\

			-not -path "./${_pkg_urls_git_dname}.git/*"}); do

		_fname="${_dlcachedir}/${_pkg_name}/${_fname#./}"

		rtl_log_msg notice "Deleting redundant file \`%s' for package \`%s'." "${_fname}" "${_pkg_name}";

		rtl_fileop rm "${_fname}";

	done;

};

pkg_fetch_download_dlcache_subdir() {

	if [ -n "${PKG_INHERIT_FROM:-}" ]\

	&& ! [ -e "${BUILD_DLCACHEDIR}/${PKG_NAME}" ]\

	&& ! rtl_fileop ln_symbolic "${PKG_INHERIT_FROM}" "${BUILD_DLCACHEDIR}/${PKG_NAME}"; then

		return 1;

	elif [ -z "${PKG_INHERIT_FROM:-}" ]\

	&& ! [ -e "${BUILD_DLCACHEDIR}/${PKG_NAME}" ]\

	&& ! rtl_fileop mkdir "${BUILD_DLCACHEDIR}/${PKG_NAME}"; then

		return 1;

	else

		return 0;

	fi;

};

pkg_fetch_download() {

	if [ "${ARG_FETCH_FORCE:-}" != "offline" ]; then

		if [ -n "${PKG_URL:-}" ]; then

			if ! pkg_fetch_download_dlcache_subdir; then

				return 1;

			elif ! rtl_fetch_url_wget	\

					"${PKG_URL}" "${PKG_SHA256SUM}" "${BUILD_DLCACHEDIR}/${PKG_NAME}"\

					"${PKG_FNAME}" "${PKG_NAME}" "${PKG_MIRRORS:-}"; then

				return 1;

			fi;

		fi;

		if [ -n "${PKG_URLS_GIT:-}" ]; then

			if ! pkg_fetch_download_dlcache_subdir; then

				return 1;

			elif ! rtl_fetch_urls_git	\

					"${BUILD_DLCACHEDIR}/${PKG_NAME}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}"\

					"${PKG_NAME}" "${PKG_MIRRORS_GIT:-}" ${PKG_URLS_GIT}; then

				return 1;

			fi;

		fi;

		pkg_fetch_download_clean_dlcache "${BUILD_DLCACHEDIR}" "${PKG_NAME}" "${PKG_FNAME:-}" "${PKG_URLS_GIT:-}";

	fi;

};

# vim:filetype=sh