#!/bin/sh

# Copyright (c) 2020 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>

#

pkgtoolp_info() {

	local	_group_name="" _pkg_name_uc="$(rtl_toupper "${PKG_NAME}")" _pkg_names=""	\

		EX_PKG_DISABLED=""; EX_PKG_FINISHED=""; EX_PKG_NAMES="";

	if ! _group_name="$(ex_pkg_find_package "${BUILD_GROUPS}" "${PKG_NAME}")"; then

		rtl_log_msg failexit "Error: unknown package \`${PKG_NAME}'.";

	elif ! _pkg_names="$(ex_pkg_get_packages "${_group_name}")"; then

		rtl_log_msg failexit "Error: failed to expand package list of build group \`${_group_name}'.";

	elif ! ex_pkg_env "${DEFAULT_BUILD_STEPS}" "${DEFAULT_BUILD_VARS}"	\

			"${_group_name}" 1 "${PKG_NAME}" "" "${BUILD_WORKDIR}"; then

		rtl_log_msg failexit "Error: failed to set package environment for \`${PKG_NAME}'.";

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

		if [ -z "${PKG_DEPENDS}" ]; then

			rtl_log_msg info "Package \`${PKG_NAME}' has no dependencies.";

		else	rtl_log_msg info "Direct dependencies of \`${PKG_NAME}': ${PKG_DEPENDS}";

			if ! ex_pkg_unfold_depends "${_group_name}" "${_pkg_names}" "${PKG_NAME}" 2 0; then

				rtl_log_msg warn "Warning: failed to unfold dependency-expanded package name list for \`${PKG_NAME}'.";

			else	EX_PKG_NAMES="$(rtl_lfilter "${EX_PKG_NAMES}" "${PKG_NAME}")";

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

					rtl_log_msg info "Full dependencies of \`${PKG_NAME}': $(rtl_lsort "${EX_PKG_NAMES}")";

				fi;

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

					rtl_log_msg info "Full dependencies of \`${PKG_NAME}' (disabled packages:) $(rtl_lsort "${EX_PKG_DISABLED}")";

				fi;

			fi;

		fi;

	fi;

};

pkgtoolp_restart_at() {

	case "${ARG_RESTART_AT}" in

	ALL)	"${MIDIPIX_BUILD_PWD}/build.sh" -P -r "${PKG_NAME}" -v; ;;

	*)	"${MIDIPIX_BUILD_PWD}/build.sh" -P -r "${PKG_NAME}:${ARG_RESTART_AT}" -v; ;;

	esac;

};

pkgtoolp_rdepends() {

	local _group_name="" _pkg_names="" EX_PKG_DISABLED=""; EX_PKG_FINISHED=""; EX_PKG_NAMES="";

	if ! _group_name="$(ex_pkg_find_package "${BUILD_GROUPS}" "${PKG_NAME}")"; then

		rtl_log_msg failexit "Error: unknown package \`${PKG_NAME}'.";

	elif ! _pkg_names="$(ex_pkg_get_packages "${_group_name}")"; then

		rtl_log_msg failexit "Error: failed to expand package list of build group \`${_group_name}'.";

	elif ! ex_pkg_unfold_rdepends "${_group_name}" "${_pkg_names}" "${PKG_NAME}" 0; then

		rtl_log_msg failexit "Error: failed to unfold reverse dependency-expanded package name list for \`${PKG_NAME}'.";

	elif [ -z "${EX_PKG_NAMES}" ] && [ -z "${EX_PKG_DISABLED}" ]; then

		rtl_log_msg info "Package \`${PKG_NAME}' has no reverse dependencies.";

	else	if [ -n "${EX_PKG_NAMES}" ]; then

			rtl_log_msg info "Reverse dependencies of \`${PKG_NAME}': $(rtl_lsort "${EX_PKG_NAMES}")";

		fi;

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

			rtl_log_msg info "Reverse dependencies of \`${PKG_NAME}' (disabled packages:) $(rtl_lsort "${EX_PKG_DISABLED}")";

		fi;

	fi;

};

pkgtoolp_shell() {

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

	rtl_log_msg info "Launching shell \`${SHELL}' within package environment and \`${PKG_BUILD_DIR}'.";

	rtl_log_msg info "Run \$R to rebuild \`${PKG_NAME}'.";

	rtl_log_msg info "Run \$RS <step> to restart the specified build step of \`${PKG_NAME}'";

	rtl_log_msg info "Run \$D to automatically regenerate the patch for \`${PKG_NAME}'.";

	export	ARCH BUILD							\

		BUILD_DLCACHEDIR BUILD_WORKDIR					\

		MAKE="make LIBTOOL=${PKG_LIBTOOL:-slibtool}"			\

		MIDIPIX_BUILD_PWD						\

		PKG_NAME							\

		PREFIX PREFIX_CROSS PREFIX_MINGW32 PREFIX_MINIPIX		\

		PREFIX_NATIVE PREFIX_ROOT PREFIX_RPM;

	D="${MIDIPIX_BUILD_PWD}/${0##*/} --update-diff"				\

	R="${MIDIPIX_BUILD_PWD}/${0##*/} --restart-at ALL"			\

	RS="${MIDIPIX_BUILD_PWD}/${0##*/} --restart-at "			\

	"${SHELL}";

};

pkgtoolp_tarball() {

	local _date="" _group_name="" _hname="" _pkg_name_full="" _pkg_version="" _tarball_fname="";

	if ! _group_name="$(ex_pkg_find_package "${BUILD_GROUPS}" "${PKG_NAME}")"; then

		rtl_log_msg failexit "Error: unknown package \`${PKG_NAME}'.";

	elif ! ex_pkg_env "${DEFAULT_BUILD_STEPS}" "${DEFAULT_BUILD_VARS}"	\

			"${_group_name}" "${PKG_NAME}" "" "${BUILD_WORKDIR}"; then

		rtl_log_msg failexit "Error: failed to set package environment for \`${PKG_NAME}'.";

	elif ! _date="$(date +%Y%m%d_%H%M%S)"; then

		rtl_log_msg failexit "Error: failed to call date(1).";

	elif ! _hname="$(hostname -f)"; then

		rtl_log_msg failexit "Error: failed to call hostname(1).";

	else	if [ -n "${PKG_VERSION}" ]; then

			_pkg_name_full="${PKG_NAME}-${PKG_VERSION}";

		else

			_pkg_name_full="${PKG_NAME}";

		fi;

		_tarball_fname="${_pkg_name_full}@${_hname}-${_date}.tbz2";

		rtl_log_msg info "Creating compressed tarball of \`${PKG_BASE_DIR}' and \`${PKG_NAME}_stderrout.log'...";

		if ! tar -C "${BUILD_WORKDIR}" -cpf -				\

				"${PKG_BASE_DIR#${BUILD_WORKDIR%/}/}"		\

				"${PKG_NAME}_stderrout.log"			|\

					bzip2 -c -9 - > "${_tarball_fname}"; then

			rtl_log_msg failexit "Error: failed to create compressed tarball of \`${PKG_BASE_DIR}' and \`${PKG_NAME}_stderrout.log'.";

		else

			rtl_log_msg info "Created compressed tarball of \`${PKG_BASE_DIR}' and \`${PKG_NAME}_stderrout.log'.";

		fi;

	fi;

};

pkgtoolp_update_diff() {

	local _diff_fname_dst="" _diff_fname_src="" _fname="" _fname_base="";

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

		_diff_fname_dst="${PKG_NAME}-${PKG_VERSION}.local.patch";

	else

		_diff_fname_dst="${PKG_NAME}.local.patch";

	fi;

	if ! _diff_fname_src="$(mktemp)"; then

		rtl_log_msg failexit "Error: failed to create temporary target diff(1) file.";

	else	trap "rm -f \"${_diff_fname_src}\" >/dev/null 2>&1" EXIT HUP INT TERM USR1 USR2;

		(cd "${PKG_BASE_DIR}" && printf "" > "${_diff_fname_src}";

		 for _fname in $(find "${PKG_SUBDIR}" -iname \*.orig); do

			_fname_base="${_fname##*/}"; _fname_base="${_fname_base%.orig}";

			case "${_fname_base}" in

			config.sub)

				continue; ;;

			*)	diff -u "${_fname}" "${_fname%.orig}" >> "${_diff_fname_src}"; ;;

			esac;

		done);

		if [ "${?}" -ne 0 ]; then

			rtl_log_msg failexit "Error: failed to create diff(1).";

		elif ! rtl_fileop mv "${_diff_fname_src}" "${MIDIPIX_BUILD_PWD}/patches/${_diff_fname_dst}"; then

			rtl_log_msg failexit "Error: failed to rename diff(1) to \`${MIDIPIX_BUILD_PWD}/patches/${_diff_fname_dst}'.";

		else	trap - EXIT HUP INT TERM USR1 USR2;

			rtl_log_msg info "Updated \`${MIDIPIX_BUILD_PWD}/patches/${_diff_fname_dst}'.";

		fi;

	fi;

};

pkgtool() {

	local _status="";

	if ! cd "$(dirname "${0}")"\

	|| ! . ./subr/pkgtool_init.subr\

	|| ! pkgtool_init "${@}"; then

		printf "Error: failed to setup environment.\n"; exit 1;

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

		pkgtoolp_restart_at;

	elif [ "${ARG_UPDATE_DIFF:-0}" -eq 1 ]; then

		pkgtoolp_update_diff;

	elif [ "${ARG_INFO:-0}" -eq 1 ]; then

		pkgtoolp_info;

	elif [ "${ARG_RDEPENDS:-0}" -eq 1 ]; then

		pkgtoolp_rdepends;

	elif [ "${ARG_SHELL:-0}" -eq 1 ]; then

		pkgtoolp_shell;

	elif [ "${ARG_TARBALL:-0}" -eq 1 ]; then

		pkgtoolp_tarball;

	fi;

};

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

# vim:filetype=sh textwidth=0