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#!/bin/sh
# Copyright (c) 2016 Lucio Andrés Illanes Albornoz <l.illanes@gmx.de>
#

#
#
#
for __ in subr/*.subr; do . ${__}; done;
set -o noglob;
while [ ${#} -gt 0 ]; do
case ${1} in
-c)	ARG_CLEAN=1; ;;
-C)	ARG_CHECK_UPDATES=1; ;;
-N)	ARG_OFFLINE=1; ;;
-i)	ARG_IGNORE_SHA256SUMS=1; ;;
-t*)	ARG_TARBALL=1; [ "${1#-t.}" != "${1}" ] && TARBALL_SUFFIX=${1#-t.}; ;;
-v)	ARG_VERBOSE=1; ;;
-x)	ARG_XTRACE=1; set -o xtrace; ;;
-a)	[ -z "${2}" ] && exec cat etc/build.usage || ARCH=${2}; shift; ;;
-b)	[ -z "${2}" ] && exec cat etc/build.usage || BUILD=${2}; shift; ;;
-r)	if [ -z "${2}" ]; then
		exec cat build.usage;
	elif [ "${2%:*}" = "${2}" ]; then
		ARG_RESTART=${2};
	else
		ARG_RESTART=${2%:*}; ARG_RESTART_AT=${2#*:};
	fi;
	BUILD_PACKAGES_RESTART="$(echo ${ARG_RESTART} | sed "s/,/ /g")";
	if [ -z "${ARG_RESTART_AT}" ]; then
		ARG_RESTART_AT=ALL;
	fi; shift; ;;
host_toolchain|native_toolchain|runtime|lib_packages|leaf_packages|devroot|world)
	BUILD_TARGETS_META="${BUILD_TARGETS_META:+${BUILD_TARGETS_META} }${1}"; ;;
*=*)	set_var_unsafe "${1%%=*}" "${1#*=}"; ;;
*)	exec cat etc/build.usage; ;;
esac; shift; done;
pre_setup_env; pre_prereqs; pre_subdirs; pre_build_files;

#
#
#
{(
if [ ${ARG_CHECK_UPDATES:-0} -eq 0 ]; then
	log_msg info "Build started by ${BUILD_USER:=${USER}}@${BUILD_HNAME:=$(hostname)} at ${BUILD_DATE_START}.";
	log_env_vars "build (global)" ${LOG_ENV_VARS};
else
	log_msg info "Version check run started by ${BUILD_USER:=${USER}}@${BUILD_HNAME:=$(hostname)} at ${BUILD_DATE_START}.";
fi;
for BUILD_TARGET_LC in $(subst_tgts invariants ${BUILD_TARGETS_META:-world}); do
	BUILD_TARGET=$(echo ${BUILD_TARGET_LC} | tr a-z A-Z);
	BUILD_PACKAGES=$(get_var_unsafe ${BUILD_TARGET}_PACKAGES);
	if [ "${BUILD_TARGET}" != "INVARIANTS" ]\
	&& [ -n "${BUILD_PACKAGES_RESTART}" ]; then
		BUILD_PACKAGES="$(lfilter "${BUILD_PACKAGES}" "${BUILD_PACKAGES_RESTART}")";
	fi;
	for BUILD_PACKAGE_LC in ${BUILD_PACKAGES}; do
		#
		#
		#
		if [ ${ARG_CHECK_UPDATES:-0} -eq 1 ]\
		&& [ "${BUILD_PACKAGE#*.*}" = "${BUILD_PACKAGE}" ]; then
			(mode_check_pkg_updates "${BUILD_PACKAGE_LC}" "${BUILD_PACKAGE}");
			continue;
		else
			(set -o errexit -o noglob;
			parse_with_pkg_name "${BUILD_PACKAGE_LC%.*}";
			for __ in ${BUILD_STEPS}; do
				case ${__#*:} in
				abstract)
					if test_cmd pkg_${PKG_NAME}_${__%:*}; then
						pkg_${PKG_NAME}_${__%:*}; exit 0;
					fi; ;;
				always)	pkg_${__%:*}; ;;
				main)	if ! is_build_script_done ${__%:*}; then
						if test_cmd pkg_${PKG_NAME}_${__%:*}; then
							pkg_${PKG_NAME}_${__%:*};
						else
							pkg_${__%:*};
						fi;
					fi; ;;
				esac;
			done;
			set_build_script_done finish); BUILD_SCRIPT_RC=${?};
		fi;
		case ${BUILD_SCRIPT_RC} in
		0) log_msg succ "Finished \`${BUILD_PACKAGE_LC}' build.";
			: $((BUILD_NFINI+=1)); continue; ;;
		*) log_msg fail "Build failed in \`${BUILD_PACKAGE_LC}' (last return code ${BUILD_SCRIPT_RC}.).";
			: $((BUILD_NFAIL+=1)); break; ;;
		esac;
	done;
	if [ ${BUILD_SCRIPT_RC:-0} -ne 0 ]; then
		break;
	fi;
done;
if [ ${BUILD_SCRIPT_RC:-0} -eq 0 ]; then
	post_copy_etc; post_strip; post_tarballs; post_build_files;
fi;
log_msg info "${BUILD_NFINI} finished, ${BUILD_NSKIP} skipped, and ${BUILD_NFAIL} failed builds in ${BUILD_NBUILT} build script(s).";
log_msg info "Build time: ${BUILD_TIMES_HOURS} hour(s), ${BUILD_TIMES_MINUTES} minute(s), and ${BUILD_TIMES_SECS} second(s).";
exit ${BUILD_SCRIPT_RC})} 2>&1 | tee ${BUILD_LOG_FNAME} & TEE_PID=${!};
trap "rm -f ${BUILD_STATUS_IN_PROGRESS_FNAME};	\
	log_msg fail \"Build aborted.\";	\
	echo kill ${TEE_PID};			\
	kill ${TEE_PID}" HUP INT TERM USR1 USR2;
wait;

# vim:filetype=sh