# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/games.eclass,v 1.70 2004/09/02 01:35:57 vapier Exp $
#
# devlist: {vapier,wolf31o2,mr_bones_}@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

ECLASS=games
INHERITED="$INHERITED $ECLASS"

EXPORT_FUNCTIONS pkg_postinst src_compile pkg_setup

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

export GAMES_PREFIX="/usr/games"
export GAMES_PREFIX_OPT="/opt"
export GAMES_DATADIR="/usr/share/games"
export GAMES_DATADIR_BASE="/usr/share" # some packages auto append 'games'
export GAMES_SYSCONFDIR="/etc/games"
export GAMES_STATEDIR="/var/games"
export GAMES_LOGDIR="/var/log/games"
export GAMES_LIBDIR="/usr/games/lib"
export 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() {
	if [ -x ./configure ] ; then
		echo \
		./configure \
			--prefix=${GAMES_PREFIX} \
			--host=${CHOST} \
			--mandir=/usr/share/man \
			--infodir=/usr/share/info \
			--datadir=${GAMES_DATADIR} \
			--sysconfdir=${GAMES_SYSCONFDIR} \
			--localstatedir=${GAMES_STATEDIR} \
			"$@"
		./configure \
			--prefix=${GAMES_PREFIX} \
			--host=${CHOST} \
			--mandir=/usr/share/man \
			--infodir=/usr/share/info \
			--datadir=${GAMES_DATADIR} \
			--sysconfdir=${GAMES_SYSCONFDIR} \
			--localstatedir=${GAMES_STATEDIR} \
			"$@" || 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 ${FUNCNAME/games} "$@"; }

gamesowners() { chown ${GAMES_USER}:${GAMES_GROUP} "$@"; }
gamesperms() { chmod u+rw,g+r-w,o-rwx "$@"; }
prepgamesdirs() {
	local dir=""
	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
	done
	local f=""
	for f in `find ${D}/${GAMES_STATEDIR} -type f -printf '%P ' 2>/dev/null` ; do
		if [ -e "${ROOT}/${GAMES_STATEDIR}/${f}" ] ; then
			cp -p "${ROOT}/${GAMES_STATEDIR}/${f}" "${D}/${GAMES_STATEDIR}/${f}"
			touch "${D}/${GAMES_STATEDIR}/${f}"
		fi
	done
	chmod 750 ${D}/${GAMES_BINDIR}/* >& /dev/null
}

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

games_pkg_setup() {
	enewgroup ${GAMES_GROUP} 35
	enewuser ${GAMES_USER} 35 /bin/false /usr/games ${GAMES_GROUP}
	enewuser ${GAMES_USER_DED} 36 /bin/bash /usr/games ${GAMES_GROUP}
}

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

# 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
	einfo "See the usermod(8) manpage for more information."
	echo
}

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

	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 2>&1 \
			|| 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 2>&1 \
				|| 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 2>&1 \
		|| 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 2>&1 || die "Removing temporary files"
}

# make a wrapper script ...
games_make_wrapper() {
	local wrapper=$1 ; shift
	local bin=$1 ; shift
	local chdir=$1 ; shift
	local tmpwrapper="`mymktemp ${T}`"
	cat << EOF > ${tmpwrapper}
#!/bin/sh
cd "${chdir}"
exec ${bin} "\$@"
EOF
	newgamesbin ${tmpwrapper} ${wrapper}
}