#!/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")";

	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 PKG_NAME in ${BUILD_PACKAGES}; do

		#

		#

		#

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

		&& [ "${BUILD_PACKAGE#*.*}" = "${BUILD_PACKAGE}" ]; then

			(mode_check_pkg_updates "${PKG_NAME}" "${BUILD_PACKAGE}");

			continue;

		else

			unset BUILD_SCRIPT_RC;

		fi;

		(set -o errexit -o noglob;

		if [ -n "${BUILD_PACKAGES_RESTART}" ]\

		|| ! is_build_script_done "${PKG_NAME}" finish; then

			PKG_BUILD_STEPS="$(get_var_unsafe PKG_$(echo ${PKG_NAME} | tr a-z A-Z)_BUILD_STEPS)";

			set -- ${PKG_BUILD_STEPS:-${BUILD_STEPS}};

			while [ ${#} -gt 0 ]; do

				_pkg_step_cmds=""; _pkg_step_cmd_args="";

				case "${1#*:}" in

				abstract) _pkg_step_cmds="pkg_${PKG_NAME}_${1%:*}";

					  _pkg_step_cmd_args="${ARG_RESTART_AT:-ALL}"; ;;

				always)	  _pkg_step_cmds="pkg_${1%:*}"; ;;

				main)	if [ -n "${BUILD_PACKAGES_RESTART}" ]; then

						if [ -z "${ARG_RESTART_AT}" ]\

						|| lmatch "${ARG_RESTART_AT}" , "${1%:*}"; then

							_pkg_step_cmds="pkg_${PKG_NAME}_${1%:*} pkg_${1%:*}";

						fi;

					elif ! is_build_script_done "${PKG_NAME}" "${1%:*}"; then

						_pkg_step_cmds="pkg_${PKG_NAME}_${1%:*} pkg_${1%:*}";

					fi; ;;

				optional)

					if lmatch "${ARG_RESTART_AT}" "," "${1%:*}"; then

						_pkg_step_cmds="pkg_${PKG_NAME}_${1%:*} pkg_${1%:*}";

					fi; ;;

				esac;

				for __ in ${_pkg_step_cmds}; do

					if test_cmd "${__}"; then

						test_cmd "pkg_${PKG_NAME}_${1%:*}_pre"	\

							&& "pkg_${PKG_NAME}_${1%:*}_pre"

						"${__}" ${_pkg_step_cmd_args};

						test_cmd "pkg_${PKG_NAME}_${1%:*}_post"	\

							&& "pkg_${PKG_NAME}_${1%:*}_post"

						if [ "${1#*:}" != "always" ]\

						&& [ ${#} -ge 2 ]; then

							set_build_script_done "${PKG_NAME}" "${1%:*}" "-${2#*:}";

						else

							set_build_script_done "${PKG_NAME}" "${1%:*}";

						fi; break;

					fi;

				done;

			shift; done;

		fi);

		case "${BUILD_SCRIPT_RC:=${?}}" in

		0) log_msg succ "Finished \`${PKG_NAME}' build.";

			: $((BUILD_NFINI+=1)); continue; ;;

		*) log_msg fail "Build failed in \`${PKG_NAME}' (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_sha256sums; post_tarballs;

fi;

post_build_files;

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