#!/bin/sh

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

#

#

#

#

for __ in subr/*.subr; do

	. ./${__};

done;

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;

	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;

#

#

#

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

&& [ -e /proc/cpuinfo ]; then

	BUILD_CPUS=$(awk '/^processor/{cpus++} END{print cpus}' /proc/cpuinfo);

fi;

for __ in ${HOME}/midipix_build.vars ../midipix_build.vars ./vars/build.vars; do

	[ -e ${__} ] && . ${__};

done;

for __ in $(export | sed -e 's/^export //' -e 's/=.*$//'); do

	if ! match_list "${CLEAR_ENV_VARS_EXCEPT}" " " "${__}"; then

		unset "${__}";

	fi;

done;

#

#

#

pre_prereqs;

pre_subdirs;

if [ -e ${BUILD_LOG_FNAME} ]; then

	mv -- ${BUILD_LOG_FNAME} ${BUILD_LOG_LAST_FNAME};

fi;

touch ${BUILD_STATUS_IN_PROGRESS_FNAME};

BUILD_DATE_START="$(date %Y-%m-%d-%H-%M-%S)";

BUILD_NFINI=${BUILD_NSKIP:=${BUILD_NFAIL:=${BUILD_NBUILT:=0}}};

BUILD_TIMES_SECS=$(command date +%s);

#

#

#

{(

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);

	for BUILD_PACKAGE_LC in $(get_var_unsafe ${BUILD_TARGET}_PACKAGES); do

		BUILD_PACKAGE=$(echo ${BUILD_PACKAGE_LC} | tr a-z A-Z);

		#

		#

		#

		if [ "${BUILD_TARGET}" != "INVARIANTS" ]\

		&& [ -n "${ARG_RESTART}" ]; then

			if [ "${ARG_RESTART}" != "ALL" ] &&\

			! match_list ${ARG_RESTART} , ${BUILD_PACKAGE_LC}; then

				log_msg vnfo "Skipped \`${BUILD_PACKAGE_LC}' (-r specified.)";

				: $((BUILD_NSKIP+=1)); BUILD_SCRIPT_RC=0; continue;

			fi;

		fi;

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

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

			mode_check_pkg_updates "${BUILD_PACKAGE_LC}"			\

				"$(get_var_unsafe PKG_${BUILD_PACKAGE}_VERSION)"	\

				"$(get_var_unsafe PKG_${BUILD_PACKAGE}_URL)"		\

				"$(get_var_unsafe PKG_${BUILD_PACKAGE}_URL_TYPE)";

			continue;

		fi;

		if [ "${BUILD_TARGET}" != "INVARIANTS" ]\

		&& [ -z "${ARG_RESTART}" ]\

		&& is_build_script_done finish "${BUILD_PACKAGE_LC}"; then

			log_msg vnfo "Skipped \`${BUILD_PACKAGE_LC}' (already built.)";

			: $((BUILD_NSKIP+=1)); BUILD_SCRIPT_RC=0; continue;

		elif [ -n "${ARG_RESTART}" ]; then

			log_msg vnfo "Forcing package \`${BUILD_PACKAGE_LC}'.";

		fi;

		#

		#

		#

		(set -o errexit -o noglob;

		PKG_PREFIX=$(get_vars_unsafe ${BUILD_TARGET}_PREFIX PKG_${BUILD_PACKAGE%%.*}_PREFIX);				

		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=${?};

		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;

post_copy_etc; post_strip; post_tarballs;

: $((BUILD_TIMES_SECS=$(command date +%s)-${BUILD_TIMES_SECS}));

: $((BUILD_TIMES_HOURS=${BUILD_TIMES_SECS}/3600));

: $((BUILD_TIMES_MINUTES=(${BUILD_TIMES_SECS}%3600)/60));

: $((BUILD_TIMES_SECS=(${BUILD_TIMES_SECS}%3600)%60));

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).";

if [ -f "${BUILD_STATUS_IN_PROGRESS_FNAME}" ]; then

	build_fileop rm ${BUILD_STATUS_IN_PROGRESS_FNAME};

fi;

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