Blame subr/rtl_fetch.subr

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#
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# set +o errexit -o noglob -o nounset is assumed.
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#
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rtlp_fetch_url_git() {
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	local _tgtdir="${1}" _subdir="${2}" _url="${3}" _branch="${4}"	\
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		_oldpwd="";
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	(set -o errexit -o noglob -o nounset;
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	rtl_flock_acquire 4 || exit "${?}";
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	trap "rm -f \"${BUILD_DLCACHEDIR}/${_subdir%%[/]}.fetching\"" EXIT;
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	if [ -e "${BUILD_DLCACHEDIR}/${_subdir}" ]; then
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		(rtl_fileop cd "${BUILD_DLCACHEDIR}/${_subdir}" &&\
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			git pull ${DEFAULT_GIT_ARGS} origin "${_branch:-main}");
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		(rtl_fileop cd "${BUILD_DLCACHEDIR}/${_subdir}" &&\
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			git submodule update);
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	else
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		git clone ${DEFAULT_GIT_ARGS} "${_url}" "${BUILD_DLCACHEDIR}/${_subdir}";
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		if [ -n "${_branch}" ]; then
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			(rtl_fileop cd "${BUILD_DLCACHEDIR}/${_subdir}" &&\
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				git checkout "${_branch}");
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		fi;
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		(rtl_fileop cd "${BUILD_DLCACHEDIR}/${_subdir}" &&\
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			git submodule update --init);
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	fi;
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	_oldpwd="${PWD}"; rtl_fileop cd "${PKG_BASE_DIR}";
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	rtl_fileop rm "${_tgtdir}/${_subdir}";
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	rtl_fileop cp "${BUILD_DLCACHEDIR}/${_subdir}" "${_tgtdir}";
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	rtl_fileop cd "${_oldpwd}";) 4<>"${BUILD_DLCACHEDIR}/${_subdir%%[/]}.fetching";
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	if [ "${?}" -eq 0 ]; then
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		cd "$(pwd)";
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	else
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		return 1;
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	fi;
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};
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rtl_fetch_urls_git() {
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	local _tgtdir="" _url_spec="" _subdir="" _url="" _git_branch="";
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	_tgtdir="${1}"; shift;
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	if [ "${ARG_FETCH_FORCE}" = "offline" ]; then
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		return 0;
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	fi;
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	for _url_spec in "${@}"; do
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		_subdir="${_url_spec%=*}";
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		_url="${_url_spec#*=}";
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		_url="${_url%@*}";
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		if [ "${_url_spec#*@}" != "${_url_spec}" ]; then
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			_git_branch=${_url_spec#*@};
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		fi;
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		rtlp_fetch_url_git "${_tgtdir}" "${_subdir}"	\
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			"${_url}" "${_git_branch}";
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	done;
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};
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# N.B.	URLs ($1) may contain `?' or '&' characters.
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rtl_fetch_url_wget() {
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	local _urls="${1}" _sha256sum_src="${2}" _target_fname="${3}" _rc=0 _target_fname_full=""\
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		_url="" _urls_count=0;
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	if [ "${ARG_FETCH_FORCE}" = "offline" ]; then
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		return 0;
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	else	_urls_count="$(rtl_llength "${_urls}")";
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		for _url in ${_urls}; do
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			if [ -z "${_target_fname}" ]; then
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				_target_fname="$(rtl_basename "${_url}")";
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			fi;
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			_target_fname_full="${BUILD_DLCACHEDIR}/${_target_fname}";
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			(set +o errexit -o noglob -o nounset;
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			rtl_flock_acquire 4 || exit 1;
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			trap "_rc=\"\${?}\"; rm -f \"${_target_fname_full}.fetching\"; exit \"\${_rc}\";" EXIT;
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			if [ -z "${_sha256sum_src}" ]\
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			|| ! rtl_check_digest_file "${_target_fname_full}" "${_sha256sum_src}" "${_target_fname_full}.fetched"; then
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				wget ${DEFAULT_WGET_ARGS} -O "${_target_fname_full}" "${_url}"; _rc="${?}";
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				if [ "${_rc}" -ne 0 ]; then
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					exit $((${_rc}+2));
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				elif [ -n "${_sha256sum_src}" ]\
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				&& ! rtl_check_digest "${_target_fname_full}" "${_sha256sum_src}"; then
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					exit 2;
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				else
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					printf "%s" "${RTL_CHECK_DIGEST_DIGEST}" > "${_target_fname_full}.fetched"; exit 0;
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				fi;
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			else
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				exit 0;
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			fi;) 4<>"${_target_fname_full}.fetching"; _rc="${?}"; : $((_urls_count-=1));
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			case "${_rc}" in
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			0)	break; ;;
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			1)	if [ "${_urls_count}" -ge 1 ]; then
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					rtl_log_msg warning "Warning: failed to acquire fetching lock for URL \`%s', retrying with alternative URL..." "${_url}";
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				else
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					rtl_log_msg fatalexit "Error: failed to acquire fetching lock for URL \`%s'." "${_url}";
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				fi; ;;
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			2)	if [ "${_urls_count}" -ge 1 ]; then
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					rtl_log_msg warning "Warning: hash mismatch for URL \`%s', retrying with alternative URL... (from build variables: %s.)"\
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							"${_url}" "${_sha256sum_src}";
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				else
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					rtl_log_msg fatalexit "Error: hash mismatch for URL \`%s' (from build variables: %s.)"\
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							"${_url}" "${_sha256sum_src}";
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				fi; ;;
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			*)	if [ "${_urls_count}" -ge 1 ]; then
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					rtl_log_msg warning "Warning: failed to fetch URL \`%s', retrying with alternative URL... (wget(1) exit status: %s)"\
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							"${_url}" "$((${_rc}-2))";
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				else
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					rtl_log_msg fatalexit "Error: failed to fetch URL \`%s' (wget(1) exit status: %s)"\
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							"${_url}" "$((${_rc}-2))";
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				fi; ;;
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			esac;
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		done;
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		return "${_rc}";
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	fi;
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};
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# vim:filetype=sh