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#!/bin/sh
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# Copyright (c) 2016 Lucio Andrés Illanes Albornoz <l.illanes@gmx.de>
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#
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#
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#
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#
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for __ in subr/*.subr; do . "${__}"; done;
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set -o noglob;
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while [ ${#} -gt 0 ]; do
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case ${1} in
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-c)	ARG_CLEAN=1; ;;
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-C)	ARG_CHECK_UPDATES=1; ;;
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-N)	ARG_OFFLINE=1; ;;
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-i)	ARG_IGNORE_SHA256SUMS=1; ;;
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-t*)	ARG_TARBALL=1; [ "${1#-t.}" != "${1}" ] && TARBALL_SUFFIX="${1#-t.}"; ;;
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-v)	ARG_VERBOSE=1; ;;
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-x)	ARG_XTRACE=1; set -o xtrace; ;;
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-a)	[ -z "${2}" ] && exec cat etc/build.usage || ARCH="${2}"; shift; ;;
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-b)	[ -z "${2}" ] && exec cat etc/build.usage || BUILD="${2}"; shift; ;;
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-r)	if [ -z "${2}" ]; then
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		exec cat build.usage;
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	elif [ "${2%:*}" = "${2}" ]; then
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		ARG_RESTART="${2}";
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	else
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		ARG_RESTART="${2%:*}"; ARG_RESTART_AT="${2#*:}";
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	fi;
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	BUILD_PACKAGES_RESTART="$(echo ${ARG_RESTART} | sed "s/,/ /g")";
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	shift; ;;
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host_toolchain|native_toolchain|runtime|lib_packages|leaf_packages|devroot|world)
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	BUILD_TARGETS_META="${BUILD_TARGETS_META:+${BUILD_TARGETS_META} }${1}"; ;;
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*=*)	set_var_unsafe "${1%%=*}" "${1#*=}"; ;;
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*)	exec cat etc/build.usage; ;;
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esac; shift; done;
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pre_setup_env; pre_prereqs; pre_subdirs; pre_build_files;
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#
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#
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#
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{(
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if [ "${ARG_CHECK_UPDATES:-0}" -eq 0 ]; then
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	log_msg info "Build started by ${BUILD_USER:=${USER}}@${BUILD_HNAME:=$(hostname)} at ${BUILD_DATE_START}.";
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	log_env_vars "build (global)" ${LOG_ENV_VARS};
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else
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	log_msg info "Version check run started by ${BUILD_USER:=${USER}}@${BUILD_HNAME:=$(hostname)} at ${BUILD_DATE_START}.";
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fi;
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for BUILD_TARGET_LC in $(subst_tgts invariants ${BUILD_TARGETS_META:-world}); do
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	BUILD_TARGET="$(echo ${BUILD_TARGET_LC} | tr a-z A-Z)";
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	BUILD_PACKAGES="$(get_var_unsafe ${BUILD_TARGET}_PACKAGES)";
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	if [ "${BUILD_TARGET}" != "INVARIANTS" ]\
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	&& [ -n "${BUILD_PACKAGES_RESTART}" ]; then
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		BUILD_PACKAGES="$(lfilter "${BUILD_PACKAGES}" "${BUILD_PACKAGES_RESTART}")";
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	fi;
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	for PKG_NAME in ${BUILD_PACKAGES}; do
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		#
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		#
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		#
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		if [ "${ARG_CHECK_UPDATES:-0}" -eq 1 ]\
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		&& [ "${BUILD_PACKAGE#*.*}" = "${BUILD_PACKAGE}" ]; then
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			(mode_check_pkg_updates "${PKG_NAME}" "${BUILD_PACKAGE}");
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			continue;
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		else
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			unset BUILD_SCRIPT_RC;
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		fi;
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		(set -o errexit -o noglob;
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		if [ -n "${BUILD_PACKAGES_RESTART}" ]\
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		|| [ "${BUILD_TARGET}" = "INVARIANTS" ]\
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		|| ! is_build_script_done "${PKG_NAME}" finish; then
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			PKG_BUILD_STEPS="$(get_var_unsafe PKG_$(echo ${PKG_NAME} | tr a-z A-Z)_BUILD_STEPS)";
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			set -- ${PKG_BUILD_STEPS:-${BUILD_STEPS}};
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			while [ ${#} -gt 0 ]; do
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				_pkg_step_cmds=""; _pkg_step_cmd_args="";
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				case "${1#*:}" in
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				abstract) _pkg_step_cmds="pkg_${PKG_NAME}_${1%:*}";
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					  _pkg_step_cmd_args="${ARG_RESTART_AT:-ALL}"; ;;
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				always)	  _pkg_step_cmds="pkg_${1%:*}"; ;;
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				main)	if [ "${BUILD_TARGET}" = "INVARIANTS" ]; then
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						_pkg_step_cmds="pkg_${PKG_NAME}_${1%:*} pkg_${1%:*}";
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					elif [ -n "${BUILD_PACKAGES_RESTART}" ]; then
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						if [ -z "${ARG_RESTART_AT}" ]\
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						|| lmatch "${ARG_RESTART_AT}" , "${1%:*}"; then
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							_pkg_step_cmds="pkg_${PKG_NAME}_${1%:*} pkg_${1%:*}";
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						fi;
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					elif ! is_build_script_done "${PKG_NAME}" "${1%:*}"; then
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						_pkg_step_cmds="pkg_${PKG_NAME}_${1%:*} pkg_${1%:*}";
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					fi; ;;
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				optional)
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					if lmatch "${ARG_RESTART_AT}" "," "${1%:*}"; then
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						_pkg_step_cmds="pkg_${PKG_NAME}_${1%:*} pkg_${1%:*}";
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					fi; ;;
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				esac;
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				for __ in ${_pkg_step_cmds}; do
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					if test_cmd "${__}"; then
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						test_cmd "pkg_${PKG_NAME}_${1%:*}_pre"	\
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							&& "pkg_${PKG_NAME}_${1%:*}_pre"
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						"${__}" ${_pkg_step_cmd_args};
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						test_cmd "pkg_${PKG_NAME}_${1%:*}_post"	\
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							&& "pkg_${PKG_NAME}_${1%:*}_post"
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						if [ "${1#*:}" != "always" ]\
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						&& [ ${#} -ge 2 ]; then
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							set_build_script_done "${PKG_NAME}" "${1%:*}" "-${2#*:}";
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						else
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							set_build_script_done "${PKG_NAME}" "${1%:*}";
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						fi; break;
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					fi;
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				done;
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			shift; done;
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		fi);
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		case "${BUILD_SCRIPT_RC:=${?}}" in
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		0) log_msg succ "Finished \`${PKG_NAME}' build.";
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			: $((BUILD_NFINI+=1)); continue; ;;
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		*) log_msg fail "Build failed in \`${PKG_NAME}' (last return code ${BUILD_SCRIPT_RC}.).";
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			: $((BUILD_NFAIL+=1)); break; ;;
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		esac;
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	done;
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	if [ "${BUILD_SCRIPT_RC:-0}" -ne 0 ]; then
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		break;
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	fi;
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done;
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if [ "${BUILD_SCRIPT_RC:-0}" -eq 0 ]; then
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	post_copy_etc; post_strip; post_sha256sums; post_tarballs;
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fi;
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post_build_files;
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log_msg info "${BUILD_NFINI} finished, ${BUILD_NSKIP} skipped, and ${BUILD_NFAIL} failed builds in ${BUILD_NBUILT} build script(s).";
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log_msg info "Build time: ${BUILD_TIMES_HOURS} hour(s), ${BUILD_TIMES_MINUTES} minute(s), and ${BUILD_TIMES_SECS} second(s).";
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exit "${BUILD_SCRIPT_RC}")} 2>&1 | tee "${BUILD_LOG_FNAME}" & TEE_PID="${!}";
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trap "rm -f ${BUILD_STATUS_IN_PROGRESS_FNAME};	\
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	log_msg fail \"Build aborted.\";	\
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	echo kill ${TEE_PID};			\
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	kill ${TEE_PID}" HUP INT TERM USR1 USR2;
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wait;
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# vim:filetype=sh