#

# set -o errexit -o noglob are assumed.

#

# N.B.	URLs ($1) may contain `?' or '&' characters.

pkgp_fetch_wget() {

	local _url="${1}" _sha256sum_src="${2}";

	if [ -z "${3}" ]; then

		_url_dst="${DLCACHEDIR}/$(ex_basename "${_url}")";

	else

		_url_dst="${DLCACHEDIR}/${3}";

	fi;

	if [ "${ARG_OFFLINE:-0}" -eq 1 ]\

	|| [ -e "${_url_dst}.fetched" ]; then

		return 0;

	else

		wget ${DEFAULT_WGET_ARGS} -c -O "${_url_dst}" "${_url}";

	fi;

	if [ -n "${_sha256sum_src}" ]; then

		set -- $(openssl dgst -sha256 "${_url_dst}"); shift $((${#}-1));

		if [ "${_sha256sum_dst:=${1}}" != "${_sha256sum_src}" ]; then

			if [ "${ARG_IGNORE_SHA256SUMS:-0}" -eq 0 ]; then

				ex_log_msg failexit "Error: hash mismatch for URL \`${_url}' (is: ${_sha256sum_dst}, should be: ${_sha256sum_src}.)";

			else

				ex_log_msg vnfo "Warning: hash mismatch for URL \`${_url}' (is: ${_sha256sum_dst}, should be: ${_sha256sum_src}.)";

			fi;

		fi;

	fi;

	touch "${_url_dst}.fetched";

};

pkg_fetch_wget() {

	if [ -n "${1}" ]; then

		pkgp_fetch_wget "${1}" "${2}";

	else

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

			pkgp_fetch_wget "${PKG_URL}" "${PKG_SHA256SUM}" "${PKG_FNAME}";

		fi;

	fi;

};

# vim:filetype=sh