midipix / build / midipix_build

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buildp_ast() {
	local _param="${1}" _pids_killed="";
	rm -f "${DEFAULT_BUILD_STATUS_IN_PROGRESS_FNAME}";
	case "${_param}" in
	abort) ex_rtl_log_msg failexit "Build aborted."; ;;
	esac;
	ex_rtl_kill_tree "${$}";
	if [ -n "${_pids_killed}" ]; then
		ex_rtl_log_msg vnfo "Killed PIDs ${_pids_killed}";
	fi;
};

buildp_init_args() {
	local _last_pkg=""; _status="";
	if [ "${ARG_AS_NEEDED:-0}" -eq 1 ]\
	&& [ -e "${PREFIX}/build.gitref" ]\
	&& [ "$(git rev-parse HEAD)" = "$(cat "${PREFIX}/build.gitref")" ]; then
		_status="Git repository has not changed since last build and --as-needed was specified.";
	fi;
	if [ -n "${ARG_RESTART}" ]; then
		if [ "${ARG_RESTART#\*\*}" != "${ARG_RESTART}" ]; then
			ARG_RESTART="${ARG_RESTART#\*\*}"; ARG_RESTART_RECURSIVE=2;
		elif [ "${ARG_RESTART#\*}" != "${ARG_RESTART}" ]; then
			ARG_RESTART="${ARG_RESTART#\*}"; ARG_RESTART_RECURSIVE=1;
		fi;
	fi;
	case "${ARG_RESTART}" in
	ALL)	ARG_RESTART_AT=ALL; ;;
	LAST)	ARG_RESTART_AT=""; ;;
	"")	;;
	*:*)	ARG_RESTART_AT="${ARG_RESTART#*:}"; ARG_RESTART="${ARG_RESTART%:*}"; ;;
	*)	ARG_RESTART="$(echo "${ARG_RESTART}" | sed "s/,/ /g")"; ARG_RESTART_AT=ALL; ;;
	esac;
	if [ "${ARG_RESTART}" = "LAST" ]; then
		if [ -n "${DEFAULT_BUILD_LAST_FAILED_PKG_FNAME}" ]\
		&& [ -e "${DEFAULT_BUILD_LAST_FAILED_PKG_FNAME}" ]; then
			_last_pkg="$(cat "${DEFAULT_BUILD_LAST_FAILED_PKG_FNAME}")";
			ex_rtl_fileop rm "${DEFAULT_BUILD_LAST_FAILED_PKG_FNAME}";
			ex_rtl_state_clear "${BUILD_WORKDIR}" "${_last_pkg}";
		fi;
	fi;
	ex_rtl_log_set_vnfo_lvl "${ARG_VERBOSE:-0}";
	BUILD_IS_PARENT=1;
	BUILD_DATE_START="$(ex_rtl_date %Y-%m-%d-%H-%M-%S)";
	BUILD_NFINI="${BUILD_NSKIP:=${BUILD_NFAIL:=${BUILD_NBUILT:=0}}}";
	BUILD_PKGS_FAILED="";
	BUILD_TIMES_SECS="$(ex_rtl_date %s)";
	if [ "${ARG_FETCH_FORCE}" = "ipv4" ]; then
		DEFAULT_GIT_ARGS="-4${DEFAULT_GIT_ARGS:+ ${DEFAULT_GIT_ARGS}}";
		DEFAULT_WGET_ARGS="-4${DEFAULT_WGET_ARGS:+ ${DEFAULT_WGET_ARGS}}";
	elif [ "${ARG_FETCH_FORCE}" = "ipv6" ]; then
		DEFAULT_GIT_ARGS="-6${DEFAULT_GIT_ARGS:+ ${DEFAULT_GIT_ARGS}}";
		DEFAULT_WGET_ARGS="-6${DEFAULT_WGET_ARGS:+ ${DEFAULT_WGET_ARGS}}";
	fi;
	return 0;
};

buildp_init_clean_prefix() {
	if ex_rtl_lmatch "${ARG_CLEAN_BUILDS}" "prefix" ","; then
		ex_rtl_log_msg info "-C prefix specified, cleaning prefix...";
		for _pname in ${DEFAULT_CLEAR_PREFIX_PATHS}; do
			ex_rtl_fileop rm "${PREFIX}/${_pname}";
		done;
	fi;
	return 0;
};

buildp_init_env() {
	local _rc=0 _vname="" _vname_val=""; _status="";
	case "${ARG_PARALLEL}" in
	auto)
		if [ "${DEFAULT_BUILD_CPUS}" -gt 1 ]; then
			ARG_PARALLEL=$((${DEFAULT_BUILD_CPUS}/2));
		else
			ARG_PARALLEL="${DEFAULT_BUILD_CPUS}";
		fi; ;;
	*[^0-9]*)
		_rc=10; _status="Error: invalid jobs count \`${ARG_PARALLEL}'."; ;;
	esac;
	if [ "${_rc}" -eq 0 ]; then
		ex_rtl_clean_env "${DEFAULT_CLEAR_ENV_VARS_EXCEPT}";
		if ex_rtl_check_path_vars "${DEFAULT_CHECK_PATH_VARS}"; then
			export PATH="${PREFIX}/bin${PATH:+:${PATH}}";
		else
			: $((_rc+=(11-1)));
		fi;
	fi;
	return "${_rc}";
};

buildp_init_exec() {
	_status=""
	trap "buildp_ast abort" HUP INT TERM USR1 USR2; trap "buildp_ast exit" EXIT; umask 022;
	return 0;
};

buildp_init_files() {
	local _log_last_fname="" _log_last_ts="" _rc=0; _status=""
	if ! ex_rtl_fileop mkdir "${BUILD_DLCACHEDIR}" "${BUILD_WORKDIR}"\
	|| ex_rtl_lmatch "${ARG_DIST}" "rpm" ","\
	&& ! ex_rtl_fileop mkdir "${PREFIX_RPM}"; then
		_rc=13; _status="Error: cannot create build directories.";
	elif [ -e "${DEFAULT_BUILD_STATUS_IN_PROGRESS_FNAME}" ]; then
		_rc=14; _status="Error: another build targeting this architecture and build type is currently in progress.";
	else
		touch "${DEFAULT_BUILD_STATUS_IN_PROGRESS_FNAME}";
		if [ -e "${DEFAULT_BUILD_LOG_FNAME}" ]; then
			_log_last_ts="$(stat -c %Y "${DEFAULT_BUILD_LOG_FNAME}")";
			_log_last_ts="$(awk 'BEGIN {printf(strftime("%Y-%m-%d-%H-%M-%S", '"${_log_last_ts}"'))}')";
			_log_last_fname="${DEFAULT_BUILD_LOG_FNAME}.${_log_last_ts}";
			ex_rtl_fileop mv "${DEFAULT_BUILD_LOG_FNAME}" "${_log_last_fname}";
			ex_rtl_fileop ln_symbolic "${_log_last_fname}" "${DEFAULT_BUILD_LOG_LAST_FNAME}";
		fi;
		ex_rtl_fileop touch "${DEFAULT_BUILD_LOG_FNAME}";
	fi;
	return "${_rc}";
};

buildp_init_getopts() {
	local _opt="" _shiftfl=0; _status="";
	while [ "${#}" -gt 0 ]; do
		case "${1}" in
		--as-needed)	ARG_AS_NEEDED=1; _shiftfl=1; ;;
		--debug-minipx)	ARG_DEBUG_MINIPIX=1; _shiftfl=1; ;;
		-v*)		_opt="${1#-}"; while [ -n "${_opt}" ]; do
					: $((ARG_VERBOSE+=1)); _opt="${_opt#?}";
				done; _shiftfl=1; ;;
		*)		_shiftfl=0; ;;
		esac;
		if [ "${_shiftfl}" -gt 0 ]; then
			shift "${_shiftfl}"; continue;
		elif getopts a:b:C:D:Fhp:Pr:R _opt; then
			case "${_opt}" in
			a)	ARCH="${OPTARG}"; ;;
			b)	BUILD="${OPTARG}"; ;;
			C)	ARG_CLEAN_BUILDS="${OPTARG}"; ;;
			D)	ARG_DIST="${OPTARG}"; ;;
			F)	ARG_FETCH_FORCE=1; ;;
			h)	cat etc/build.usage; exit 0; ;;
			p)	ARG_PARALLEL="${OPTARG}"; ;;
			P)	ARG_PARALLEL="auto"; ;;
			r)	ARG_RESTART="${OPTARG}"; ;;
			R)	ARG_RELAXED=1; ;;
			*)	cat etc/build.usage; exit 1; ;;
			esac; shift $((${OPTIND}-1)); OPTIND=1;
		else
			break;
		fi;
	done;
	if [ "${_rc}" -eq 0 ]; then
		while [ ${#} -gt 0 ]; do
		case "${1}" in
		*=*)		ex_rtl_set_var_unsafe "${1%%=*}" "${1#*=}"; ;;
		[^a-zA-Z]*)	_rc=2; _status="Error: build group names must start with [a-zA-Z]."; ;;
		*[^_a-zA-Z]*)	_rc=3; _status="Error: build group names must not contain [^_a-zA-Z]."; ;;
		*)		BUILD_GROUPS="${BUILD_GROUPS:+${BUILD_GROUPS} }${1}"; ;;
		esac; shift; done;
	fi;
	return "${_rc}";
};

buildp_init_prereqs() {
	local _cmd="" _cmds_missing="" _rc=0; _status="";
	for _cmd in	\
			awk bunzip2 cat chmod cmake cp date find flock g++	\
			gcc git grep gunzip gzip hostname install kill		\
			ln lzip make mkdir mkfifo mv paste patch perl		\
			pgrep pkill printf readlink rm sed seq sha256sum	\
			sort stat tail tar test touch tr wget xz zip; do
		if ! which "${_cmd}" >/dev/null 2>&1; then
			_cmds_missing="$(ex_rtl_lconcat "${_cmds_missing}" "${_cmd}")";
		fi;
	done;
	if [ -n "${_cmds_missing}" ]; then
		_rc=4; _status="Error: missing prerequisite package(s): ${_cmds_missing}";
	elif ! awk -V 2>/dev/null | grep -q "^GNU Awk "; then
		_rc=5; _status="Error: awk(1) in \$PATH must be GNU Awk.";
	elif ! sed --version 2>/dev/null | grep -q "^GNU sed "; then
		_rc=6; _status="Error: sed(1) in \$PATH must be GNU sed.";
	fi;
	return "${_rc}";
};

buildp_init_type() {
	local _rc=0; _status="";
	: ${ARCH:=nt64}; : ${BUILD:=debug};
	if [ "${ARCH}" = nt32 ]; then
		DEFAULT_TARGET="i686-nt32-midipix";
	elif [ "${ARCH}" = nt64 ]; then
		DEFAULT_TARGET="x86_64-nt64-midipix";
	else
		if [ "${BUILD}" != debug ]\
		&& [ "${BUILD}" != release ]; then
			_rc=7; _status="Error: unknown build type \`${BUILD}'.";
		fi;
		_rc=8; _status="Error: invalid architecture \`${ARCH}'.";
	fi;
	return "${_rc}";
};

buildp_init_vars() {
	local _fname="" _rc=0; _status="";
	if [ -z "${DEFAULT_BUILD_CPUS}" ]; then
		if [ -e /proc/cpuinfo ]; then
			DEFAULT_BUILD_CPUS="$(awk '/^processor/{cpus++} END{print cpus}' /proc/cpuinfo)";
		else
			DEFAULT_BUILD_CPUS=1;
		fi;
	fi;
	for _fname in	\
			${HOME}/midipix_build.vars		\
			${HOME}/.midipix_build.vars		\
			../midipix_build.vars			\
			./vars/env.vars; do
		[ -e ${_fname} ] && . ${_fname};
	done;
	for _fname in $(find ./groups -name *.group | sort); do
		. "${_fname}"; _fname="${_fname##*/}"; _fname="${_fname%.group}";
		if [ "${_fname#[0-9][0-9][0-9].*}" != "${_fname}" ]\
		&& [ "${_fname#*[1-9].*}" = "${_fname}" ]\
		&& [ "${_fname}" != "999.invariants.group" ]; then
			GROUPS_DEFAULT="${GROUPS_DEFAULT:+${GROUPS_DEFAULT} }${_fname#*.}";
		fi;
	done;
	if [ -z "${PREFIX}" ]; then
		_rc=9; _status="Error: \${PREFIX} empty or unset.";
	fi;
	return "${_rc}";
};

build_fini() {
	: $((BUILD_TIMES_SECS=$(ex_rtl_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));
	if [ -f "${DEFAULT_BUILD_STATUS_IN_PROGRESS_FNAME}" ]; then
		ex_rtl_fileop rm ${DEFAULT_BUILD_STATUS_IN_PROGRESS_FNAME};
	fi;
};

build_init() {
	local _rc=0 _status="";
	if ! buildp_init_exec		\
	|| ! buildp_init_getopts "${@}"	\
	|| ! buildp_init_prereqs	\
	|| ! buildp_init_type		\
	|| ! buildp_init_vars		\
	|| ! buildp_init_env		\
	|| ! buildp_init_args		\
	|| ! buildp_init_files		\
	|| ! buildp_init_clean_prefix; then
		_rc="${?}"; ex_rtl_log_msg fail "${_status}"; exit "${_rc}";
	elif [ -n "${_status}" ]; then
		ex_rtl_log_msg info "${_status}"; exit 0;
	else
		return "${_rc}";
	fi;
};

# vim:filetype=sh