Blame subr/pkgtool_init.subr

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#
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# set +o errexit -o noglob is assumed.
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#
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pkgtoolp_init_defaults() {
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	: ${ARCH:="nt64"}; : ${BUILD:="debug"}; : ${PKG_NAME:=""};
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	: ${BUILD_WORKDIR:=""}; : ${PREFIX=""};
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	ARG_RESTART_AT=""; ARG_UPDATE_DIFF=0;
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};
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pkgtoolp_init_env() {
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	local _fname="" _rc=0; _status="";
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	if ! umask 022; then
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		printf "Error: failed to setup environment.\n"; exit 1;
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	else	for _fname in $(find subr -name *.subr); do
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			if ! . "${_fname}"; then
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				printf "Error: failed to source \`%s'.\n" "${_fname}"; exit 1;
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			fi;
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		done; fi;
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	return "${_rc}";
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};
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pkgtoolp_init_getopts() {
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	local _opt="" _shiftfl=0 _rc=0 OPTIND=0; _status="";
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	while [ "${#}" -gt 0 ]; do
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		case "${1}" in
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		--update-diff)
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			ARG_UPDATE_DIFF=1; _shiftfl=1; ;;
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		--restart-at)
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			if [ "${#}" -lt 2 ]\
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			|| [ -z "${2}" ]; then
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				_rc=1; _status="Error: missing argument for option --restart-at.";
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			else
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				ARG_RESTART_AT="${2}"; _shiftfl=2;
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			fi; ;;
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		*)	_shiftfl=0; ;;
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		esac;
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		if [ "${_rc:-0}" -ne 0 ]; then
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			break;
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		elif [ "${_shiftfl:-0}" -gt 0 ]; then
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			shift "${_shiftfl}"; continue;
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		elif getopts a:b:C:D:Fhp:Pr:R _opt; then
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			case "${_opt}" in
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			a)	ARCH="${OPTARG}"; ;;
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			b)	BUILD="${OPTARG}"; ;;
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			h)	pkgtoolp_usage; exit 0; ;;
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			*)	pkgtoolp_usage; exit 1; ;;
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			esac; shift $((${OPTIND}-1)); OPTIND=1;
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		else
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			break;
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		fi;
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	done;
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	if [ "${_rc}" -eq 0 ]; then
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		while [ "${#}" -gt 0 ]; do
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		case "${1}" in
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		*=*)	rtl_set_var_unsafe "${1%%=*}" "${1#*=}"; ;;
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		*)	if [ "${#}" -ne 1 ]; then
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				_rc=1; _status="Error: invalid argument \`${1}'.";
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			fi; break; ;;
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		esac; shift; done;
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		if [ "${_rc:-0}" -eq 0 ]; then
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			if [ "${#}" -ne 1 ]\
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			&& [ -z "${PKG_NAME}" ]; then
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				_rc=1; _status="Error: missing package name.";
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			elif [ "${#}" -eq 1 ]; then
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				PKG_NAME="${1}";
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			fi;
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		fi;
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	fi;
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	return "${_rc}";
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};
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pkgtoolp_init_prereqs() {
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	local _cmd="" _cmds_missing="" _rc=0; _status="";
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	for _cmd in	\
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			awk bunzip2 cat chmod cmake cp date find flock g++	\
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			gcc git grep gunzip gzip hostname install kill		\
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			ln lzip make mkdir mkfifo mv paste patch perl		\
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			pgrep pkill printf readlink rm sed seq sha256sum	\
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			sort stat tail tar test touch tr wget xz zip; do
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		if ! which "${_cmd}" >/dev/null 2>&1; then
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			_cmds_missing="${_cmds_missing:+${_cmds_missing} }${_cmd}";
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		fi;
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	done;
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	if [ -n "${_cmds_missing}" ]; then
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		_rc=1; _status="Error: missing prerequisite package(s): ${_cmds_missing}";
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	elif ! awk -V 2>/dev/null | grep -q "^GNU Awk "; then
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		_rc=1; _status="Error: awk(1) in \$PATH must be GNU Awk.";
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	elif ! sed --version 2>/dev/null | grep -q "^GNU sed "; then
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		_rc=1; _status="Error: sed(1) in \$PATH must be GNU sed.";
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	fi;
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	return "${_rc}";
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};
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pkgtoolp_init_vars() {
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	local _rc=0; _status="";
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	if ! rtl_lmatch "${ARCH}" "nt32 nt64"; then
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		_rc=1; _status="Error: invalid architecture \`${ARCH}'.";
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	elif ! rtl_lmatch "${BUILD}" "debug release"; then
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		_rc=1; _status="Error: unknown build type \`${BUILD}'.";
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	else	case "${ARCH}" in
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		nt32)	DEFAULT_TARGET="i686-nt32-midipix"; ;;
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		nt64)	DEFAULT_TARGET="x86_64-nt64-midipix"; ;;
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		esac;
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		rtl_fileop source_opt							\
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			"${HOME}/midipix_build.vars" "${HOME}/.midipix_build.vars"	\
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			../midipix_build.vars ./midipix.env;
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		if [ -z "${PREFIX}" ]; then
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			_rc=1; _status="Error: \${PREFIX} empty or unset.";
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		fi; fi;
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	return "${_rc}";
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};
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pkgtoolp_usage() {
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	echo "usage: ./pkgtool.sh [-a nt32|nt64] [-b debug|release] name" >&2;
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};
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pkgtool_init() {
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	local _fname="" _rc=0 _status="";
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	if ! pkgtoolp_init_env			\
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	|| ! pkgtoolp_init_defaults		\
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	|| ! pkgtoolp_init_getopts "${@}"	\
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	|| ! pkgtoolp_init_prereqs		\
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	|| ! pkgtoolp_init_vars; then
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		_rc="${?}"; rtl_log_msg fail "${_status}"; exit "${_rc}";
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	elif [ -n "${_status}" ]; then
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		rtl_log_msg info "${_status}"; exit 0;
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	else
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		return "${_rc}";
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	fi;
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};
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# vim:filetype=sh