# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/games.eclass,v 1.100 2005/06/23 22:03:27 mr_bones_ Exp $
#
# devlist: {vapier,wolf31o2,mr_bones_}@gentoo.org -> games@gentoo.org
#
# This is the games eclass for standardizing the install of games ...
# you better have a *good* reason why you're *not* using games.eclass
# in a games ebuild

inherit eutils gnuconfig

ECLASS=games
INHERITED="$INHERITED $ECLASS"

EXPORT_FUNCTIONS pkg_preinst pkg_postinst src_compile pkg_setup

DESCRIPTION="Based on the ${ECLASS} eclass"

export GAMES_PREFIX=${GAMES_PREFIX:-/usr/games}
export GAMES_PREFIX_OPT=${GAMES_PREFIX_OPT:-/opt}
export GAMES_DATADIR=${GAMES_DATADIR:-/usr/share/games}
export GAMES_DATADIR_BASE=${GAMES_DATADIR_BASE:-/usr/share} # some packages auto append 'games'
export GAMES_SYSCONFDIR=${GAMES_SYSCONFDIR:-/etc/games}
export GAMES_STATEDIR=${GAMES_STATEDIR:-/var/games}
export GAMES_LOGDIR=${GAMES_LOGDIR:-/var/log/games}
export GAMES_LIBDIR=${GAMES_LIBDIR:-/usr/games/lib}
export GAMES_BINDIR=${GAMES_BINDIR:-/usr/games/bin}
export GAMES_ENVD="90games"
# if you want to use a different user/group than games.games,
# just add these two variables to your environment (aka /etc/profile)
export GAMES_USER=${GAMES_USER:-root}
export GAMES_USER_DED=${GAMES_USER_DED:-games}
export GAMES_GROUP=${GAMES_GROUP:-games}

egamesconf() {
	local myconf
	if [[ -x ./configure ]] ; then
		gnuconfig_update
		[[ -n ${CTARGET} ]] && myconf="${myconf} --target=${CTARGET}"
		echo \
		./configure \
			--prefix="${GAMES_PREFIX}" \
			--build=${CBUILD:-${CHOST}} \
			--host=${CHOST} \
			--mandir=/usr/share/man \
			--infodir=/usr/share/info \
			--datadir="${GAMES_DATADIR}" \
			--sysconfdir="${GAMES_SYSCONFDIR}" \
			--localstatedir="${GAMES_STATEDIR}" \
			${myconf} \
			"$@" \
			${EXTRA_ECONF}
		./configure \
			--prefix="${GAMES_PREFIX}" \
			--build=${CBUILD:-${CHOST}} \
			--host=${CHOST} \
			--mandir=/usr/share/man \
			--infodir=/usr/share/info \
			--datadir="${GAMES_DATADIR}" \
			--sysconfdir="${GAMES_SYSCONFDIR}" \
			--localstatedir="${GAMES_STATEDIR}" \
			${myconf} \
			"$@" \
			${EXTRA_ECONF} \
			|| die "egamesconf failed"
	else
		die "no configure script found"
	fi
}

egamesinstall() {
	if [ -f ./[mM]akefile -o -f ./GNUmakefile ] ; then
		make \
			prefix="${D}${GAMES_PREFIX}" \
			mandir="${D}/usr/share/man" \
			infodir="${D}/usr/share/info" \
			datadir="${D}${GAMES_DATADIR}" \
			sysconfdir="${D}${GAMES_SYSCONFDIR}" \
			localstatedir="${D}${GAMES_STATEDIR}" \
			"$@" install || die "einstall failed"
	else
		die "no Makefile found"
	fi
}

gameswrapper() {
	local oldtree=${DESTTREE}
	into "${GAMES_PREFIX}"
	local cmd=$1; shift
	${cmd} "$@"
	local ret=$?
	into "${oldtree}"
	return ${ret}
}

dogamesbin() { gameswrapper ${FUNCNAME/games} "$@"; }
dogamessbin() { gameswrapper ${FUNCNAME/games} "$@"; }
dogameslib() { gameswrapper ${FUNCNAME/games} "$@"; }
dogameslib.a() { gameswrapper ${FUNCNAME/games} "$@"; }
dogameslib.so() { gameswrapper ${FUNCNAME/games} "$@"; }
newgamesbin() { gameswrapper ${FUNCNAME/games} "$@"; }
newgamessbin() { gameswrapper ${FUNCNAME/games} "$@"; }

games_make_wrapper() { gameswrapper ${FUNCNAME/games_} "$@"; }

gamesowners() { chown ${GAMES_USER}:${GAMES_GROUP} "$@"; }
gamesperms() { chmod u+rw,g+r-w,o-rwx "$@"; }
prepgamesdirs() {
	local dir f
	for dir in \
		"${GAMES_PREFIX}" "${GAMES_PREFIX_OPT}" "${GAMES_DATADIR}" \
		"${GAMES_SYSCONFDIR}" "${GAMES_STATEDIR}" "${GAMES_LIBDIR}" \
		"${GAMES_BINDIR}" "$@"
	do
		(
			gamesowners -R "${D}/${dir}"
			find "${D}/${dir}" -type d -print0 | xargs --null chmod 750
			find "${D}/${dir}" -type f -print0 | xargs --null chmod o-rwx,g+r
		) &>/dev/null
		f=$(find "${D}/${dir}" -perm +4000 -a -uid 0 2>/dev/null)
		if [[ -n ${f} ]] ; then
			eerror "A game was detected that is setuid root!"
			eerror "${f}"
			die "refusing to merge a setuid root game"
		fi
	done
	find "${D}/${GAMES_BINDIR}" -type f -maxdepth 1 -exec chmod 750 '{}' \;
}

gamesenv() {
	cat << EOF > "${ROOT}"/etc/env.d/${GAMES_ENVD}
LDPATH="${GAMES_LIBDIR}"
PATH="${GAMES_BINDIR}"
EOF
}

games_pkg_setup() {
	enewgroup "${GAMES_GROUP}" 35
	[[ ${GAMES_USER} != "root" ]] \
		&& enewuser "${GAMES_USER}" 35 /bin/false /usr/games "${GAMES_GROUP}"
	[[ ${GAMES_USER_DED} != "root" ]] \
		&& enewuser "${GAMES_USER_DED}" 36 /bin/bash /usr/games "${GAMES_GROUP}"

	# Make sure SDL was built in a certain way
	if [[ -n ${GAMES_USE_SDL} ]] ; then
		if built_with_use -o media-libs/libsdl ${GAMES_USE_SDL} ; then
			eerror "You built libsdl with wrong USE flags."
			eerror "Make sure you rebuild it like this:"
			eerror "USE='-${GAMES_USE_SDL// / -}'"
			die "your libsdl sucks"
		fi
	fi

	# Dear portage team, we are so sorry.  Lots of love, games team.
	# See Bug #61680
	[[ ${USERLAND} != "GNU" ]] && return 0
	[[ $(getent passwd "${GAMES_USER_DED}" | cut -f7 -d:) == "/bin/false" ]] \
		&& usermod -s /bin/bash "${GAMES_USER_DED}"
}

games_src_compile() {
	[[ -x ./configure ]] && { egamesconf || die "egamesconf failed"; }
	[ -e [Mm]akefile ] && { emake || die "emake failed"; }
}

games_pkg_preinst() {
	local f

	for f in $(find "${IMAGE}/${GAMES_STATEDIR}" -type f -printf '%P ' 2>/dev/null) ; do
		if [[ -e ${ROOT}/${GAMES_STATEDIR}/${f} ]] ; then
			cp -p \
				"${ROOT}/${GAMES_STATEDIR}/${f}" \
				"${IMAGE}/${GAMES_STATEDIR}/${f}" \
				|| die "cp failed"
			# make the date match the rest of the install
			touch "${IMAGE}/${GAMES_STATEDIR}/${f}"
		fi
	done
}

# pkg_postinst function ... create env.d entry and warn about games group
games_pkg_postinst() {
	gamesenv
	ewarn "Remember, in order to play games, you have to"
	ewarn "be in the '${GAMES_GROUP}' group."
	echo
	case ${USERLAND} in
		GNU)    einfo "Just run 'gpasswd -a <USER> ${GAMES_GROUP}'";;
		DARWIN) einfo "Just run 'niutil -appendprop / /groups/games users <USER>'";;
	esac
	echo
}

# Unpack .uz(2) files for UT/UT2003
# $1: directory or file to unpack
games_ut_unpack() {
	local ut_unpack="$1"
	local f=

	if [[ -z ${ut_unpack} ]] ; then
		die "You must provide an argument to games_ut_unpack"
	fi
	if [[ -f ${ut_unpack} ]] ; then
		uz2unpack "${ut_unpack}" "${ut_unpack/.uz2/}" &>/dev/null \
			|| die "uncompressing file ${ut_unpack}"
	fi
	if [[ -d ${ut_unpack} ]] ; then
		for f in $(find "${ut_unpack}" -name '*.uz*' -printf '%f ') ; do
			uz2unpack "${ut_unpack}/${f}" "${ut_unpack}/${f/.uz2}" &>/dev/null \
				|| die "uncompressing file ${f}"
			rm -f "${ut_unpack}/${f}" || die "deleting compressed file ${f}"
		done
	fi
}

# Unpacks .umod/.ut2mod/.ut4mod files for UT/UT2003/UT2004
# Usage: games_umod_unpack $1
games_umod_unpack() {
	local umod=$1
	mkdir -p "${Ddir}/System"
	cp "${dir}"/System/{ucc-bin,{Manifest,Def{ault,User}}.ini,{Engine,Core,zlib,ogg,vorbis}.so,{Engine,Core}.int} ${Ddir}/System
	export UT_DATA_PATH="${Ddir}/System"
	cd "${UT_DATA_PATH}"
	./ucc-bin umodunpack -x "${S}/${umod}" -nohomedir &> /dev/null \
		|| die "uncompressing file ${umod}"
	rm -f "${Ddir}"/System/{ucc-bin,{Manifest,Def{ault,User},User,UT2003}.ini,{Engine,Core,zlib,ogg,vorbis}.so,{Engine,Core}.int,ucc.log} &>/dev/null \
		|| die "Removing temporary files"
}