#!/bin/sh

# Copyright (c) 2016, 2017, 2018, 2019 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>

#

buildp_ast() {

	local _param="${1}" _pids="" _pids_niter=0 _pkg_name="" RTL_KILL_TREE_PIDS="";

	if [ "${_param}" = "abort" ]; then

		rtl_log_msg failexit "Build aborted.";

	fi;

	if [ -n "${DEFAULT_BUILD_STATUS_IN_PROGRESS_FNAME}" ]; then

		rtl_fileop rm "${DEFAULT_BUILD_STATUS_IN_PROGRESS_FNAME}";

	fi;

	while [ "${_pids_niter}" -lt 8 ]; do

		_pids="$(rtl_lconcat "${_pids}" "${RTL_KILL_TREE_PIDS}")"; RTL_KILL_TREE_PIDS="";

		if ! rtl_kill_tree "${$}" "TERM"\

		|| [ -z "${RTL_KILL_TREE_PIDS}" ]; then

			break;

		else

			: $((_pids_niter+=1));

		fi;

	done;

	if [ -n "${_pids}" ]; then

		rtl_log_msg vnfo "Killed PIDs $(rtl_uniq ${_pids})";

	fi;

	if [ -n "${EX_PKG_DISPATCH_WAIT}" ]; then

		for _pkg_name in ${EX_PKG_DISPATCH_WAIT}; do

			rtl_state_clear "${BUILD_WORKDIR}" "${_pkg_name}";

		done;

		rtl_log_msg vnfo "Reset package state for: ${EX_PKG_DISPATCH_WAIT}";

	fi;

};

buildp_dispatch_fail_pkg() {

	local _group_name="${1}" _pkg_name="${2}";

	: $((BUILD_NFAIL+=1)); BUILD_PKGS_FAILED="$(rtl_lconcat "${BUILD_PKGS_FAILED}" "${_pkg_name}")";

	if [ "${ARG_RELAXED:-0}" -eq 1 ]; then

		rtl_log_msg fail "$(printf "Build failed in \`%s', check \`%s' for details." "${_pkg_name}" "${BUILD_WORKDIR}/${_pkg_name}_stderrout.log")";

	else	rtl_log_msg fail "${BUILD_WORKDIR}/${_pkg_name}_stderrout.log:";

		cat "${BUILD_WORKDIR}/${_pkg_name}_stderrout.log";

		if [ -n "${DEFAULT_BUILD_LAST_FAILED_PKG_FNAME}" ]; then

			printf "%s" "${_pkg_name}" > "${DEFAULT_BUILD_LAST_FAILED_PKG_FNAME}";

		fi;

		rtl_log_msg failexit "$(printf "Build failed in \`%s'." "${_pkg_name}")";

	fi;

};

buildp_dispatch_group_state() {

	local _msg="${1}" _group_name="${2}";

	case "${_msg}" in

	finish_group)	rtl_log_msg suc2 "Finished \`${_group_name}' build group."; ;;

	start_group)	rtl_log_msg inf2 "Starting \`${_group_name}' build group..."; ;;

	esac;

};

buildp_dispatch_pkg_state() {

	local _msg="${1}" _group_name="${2}" _pkg_name="${3}";

	case "${_msg}" in

	disabled_pkg)	: $((BUILD_NSKIP+=1)); rtl_log_msg vnfo "$(printf "Skipping disabled package \`%s'." "${_pkg_name}")"; ;;

	missing_pkg)	rtl_log_msg failexit "Error: unknown package \`${_pkg_name}'."; ;;

	msg_pkg)	shift 3; rtl_log_msg vucc "$(printf "%s/%s: %s" "${_group_name}" "${_pkg_name}" "${*}")"; ;;

	skipped_pkg)	: $((BUILD_NSKIP+=1)); rtl_log_msg vnfo "$(printf "Skipping finished package \`%s'." "${_pkg_name}")"; ;;

	start_pkg)	rtl_log_msg info "$(printf "[%03d/%03d] Starting \`%s' build..." "${4}" "${5}" "${_pkg_name}")"; ;;

	step_pkg)	rtl_log_msg vucc "$(printf "Finished build step %s of package \`%s'." "${4}" "${_pkg_name}")"; ;;

	finish_pkg)

		: $((BUILD_NFINI+=1));

		if [ "${ARG_VERBOSE:-0}" -ge 2 ]; then

			cat "${BUILD_WORKDIR}/${_pkg_name}_stderrout.log";

		fi;

		rtl_log_msg succ "$(printf "Finished \`%s' build." "${_pkg_name}")"; ;;

	start_pkg_child)

		if [ "${PKG_NO_LOG_VARS:-0}" -eq 0 ]; then

			rtl_log_env_vars "build" $(set | awk -F= '/^PKG_/{print $1}' | sort);

		fi;

		if [ "${ARG_VERBOSE:-0}" -ge 3 ]; then

			set -o xtrace;

		fi; ;;

	esac;

};

buildp_dispatch() {

	local _msg="${1}"; shift;

	case "${_msg}" in

	disabled_pkg|finish_pkg|missing_pkg|msg_pkg|skipped_pkg|start_pkg|start_pkg_child|step_pkg)

		buildp_dispatch_pkg_state "${_msg}" "${@}"; ;;

	finish_group|start_group)

		buildp_dispatch_group_state "${_msg}" "${@}"; ;;

	*)	if command -v "buildp_dispatch_${_msg}" >/dev/null 2>&1; then

			"buildp_dispatch_${_msg}" "${@}";

		fi; ;;

	esac;

};

build() {

	local	_build_time_hours=0 _build_time_mins=0 _build_time_secs=0 _pkg_name=""		\

		BUILD_DATE_START="" BUILD_NFAIL=0 BUILD_NFINI=0 BUILD_NSKIP=0			\

		BUILD_PKGS_FAILED="" EX_PKG_DISPATCH_UNKNOWN="";

	if trap "buildp_ast abort" HUP INT TERM USR1 USR2\

	&& trap "buildp_ast exit" EXIT\

	&& . ./subr/build_init.subr && build_init "${@}"; then

		BUILD_DATE_START="$(rtl_date %Y-%m-%d-%H-%M-%S)"; _build_time_secs="$(rtl_date %s)";

		rtl_log_msg info "Build started by ${BUILD_USER:=${USER}}@${BUILD_HNAME:=$(hostname)} at ${BUILD_DATE_START}.";

		rtl_log_env_vars "build (global)" ${DEFAULT_LOG_ENV_VARS};

		if ! ex_pkg_dispatch "${DEFAULT_BUILD_STEPS}" "${DEFAULT_BUILD_VARS}"		\

				buildp_dispatch "${BUILD_GROUPS}" "${ARG_PARALLEL:-1}"		\

				"${BUILD_WORKDIR}/build.fifo" "${ARG_RESTART}"			\

				"${ARG_RESTART_AT}" "${ARG_RESTART_RECURSIVE}" "${BUILD_WORKDIR}"; then

			for _pkg_name in ${EX_PKG_DISPATCH_UNKNOWN}; do

				rtl_log_msg fail "Error: package \`${_pkg_name}' unknown.";

			done; exit 1;

		else	: $((_build_time_secs=$(rtl_date %s)-${_build_time_secs}));

			: $((_build_time_hours=${_build_time_secs}/3600));

			: $((_build_time_minutes=(${_build_time_secs}%3600)/60));

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

			rtl_log_msg info "${BUILD_NFINI:-0} finished, ${BUILD_NSKIP:-0} skipped, and ${BUILD_NFAIL:-0} failed package(s).";

			rtl_log_msg info "Build time: ${_build_time_hours:-0} hour(s), ${_build_time_minutes:-0} minute(s), and ${_build_time_secs:-0} second(s).";

			if [ -n "${BUILD_PKGS_FAILED}" ]; then

				rtl_log_msg failexit "Build script failure(s) in: ${BUILD_PKGS_FAILED}.";

			fi;

		fi;

	fi;

};

set +o errexit -o noglob; build "${@}";

# vim:filetype=sh textwidth=0