# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-db/postgresql/postgresql-8.0.0.ebuild,v 1.3 2005/02/24 20:59:32 kaiowas Exp $

inherit eutils gnuconfig flag-o-matic multilib

DESCRIPTION="sophisticated Object-Relational DBMS."
HOMEPAGE="http://www.postgresql.org/"
#P_HIERPG="hier-Pg7.4-0.5.2"
MY_PV=${PV/_/}
MY_P=${PN}-${MY_PV}
SRC_URI="mirror://postgresql/source/v8.0.0/${PN}-base-${MY_PV}.tar.bz2
	mirror://postgresql/source/v8.0.0/${PN}-opt-${MY_PV}.tar.bz2
	doc? ( mirror://postgresql/source/v8.0.0/${PN}-docs-${MY_PV}.tar.bz2 )"
#	pg-hier? ( http://gppl.terminal.ru/${P_HIERPG}.tar.gz )"

LICENSE="POSTGRESQL"
SLOT="0"
KEYWORDS="~x86 ~ppc ~sparc ~mips ~alpha ~arm ~hppa ~amd64 ~ia64 ~s390 ~ppc64"
IUSE="ssl nls python tcltk perl libg++ pam readline xml2 zlib doc selinux"

S=${WORKDIR}/${MY_P}
DEPEND="virtual/libc
	sys-devel/autoconf
	>=sys-libs/ncurses-5.2
	>=sys-devel/bison-1.875
	zlib? ( >=sys-libs/zlib-1.1.3 )
	readline? ( >=sys-libs/readline-4.1 )
	tcltk? ( >=dev-lang/tcl-8 >=dev-lang/tk-8.3.3-r1 )
	perl? ( >=dev-lang/perl-5.6.1-r2 )
	python? ( >=dev-lang/python-2.2 dev-python/egenix-mx-base )
	ssl? ( >=dev-libs/openssl-0.9.6-r1 )
	xml2? ( dev-libs/libxml2 dev-libs/libxslt dev-util/pkgconfig )
	nls? ( sys-devel/gettext )"
RDEPEND="virtual/libc
	app-admin/sudo
	zlib? ( >=sys-libs/zlib-1.1.3 )
	tcltk? ( >=dev-lang/tcl-8 )
	perl? ( >=dev-lang/perl-5.6.1-r2 )
	python? ( >=dev-lang/python-2.2 )
	selinux? ( sec-policy/selinux-postgresql )
	ssl? ( >=dev-libs/openssl-0.9.6-r1 )
	xml2? ( dev-libs/libxml2 dev-libs/libxslt )"

PG_DIR="/var/lib/postgresql"
MAX_CONNECTIONS=1024

pkg_setup() {
	if [ -f ${PG_DIR}/data/PG_VERSION ] ; then
		PG_MAJOR=`cat ${PG_DIR}/data/PG_VERSION | cut -f1 -d.`
		PG_MINOR=`cat ${PG_DIR}/data/PG_VERSION | cut -f2 -d.`
		if [ ${PG_MAJOR} -lt 8 ] || [ ${PG_MAJOR} -eq 8 -a ${PG_MINOR} -lt 0 ] ; then
			eerror "Postgres ${MY_PV} cannot upgrade your existing databases, you must"
			eerror "use pg_dump to export your existing databases to a file, and then"
			eerror "pg_restore to import them when you have upgraded completely."
			eerror "You must remove your entire database directory to continue."
			eerror "(database directory = ${PG_DIR})."
			exit 1
		fi
	fi
}

src_unpack() {
	unpack ${A} || die
	epatch ${FILESDIR}/${P}-gentoo.patch
}

src_compile() {
	filter-flags -ffast-math

	local myconf
	use tcltk && myconf="--with-tcl"
	use python && myconf="$myconf --with-python"
	use perl && myconf="$myconf --with-perl"
	use ssl && myconf="$myconf --with-openssl"
	use nls && myconf="$myconf --enable-nls"
	use libg++ && myconf="$myconf --with-CXX"
	use pam && myconf="$myconf --with-pam"
	use readline || myconf="$myconf --without-readline"
	use zlib || myconf="$myconf --without-zlib"
	use pg-intdatetime && myconf="$myconf --enable-integer-datetimes"

	# these are the only working CFLAGS I could get on ppc, so locking them
	# down, anything more aggressive fails (i.e. -mcpu or -Ox)
	# Gerk - Nov 26, 2002
	use ppc && CFLAGS="-pipe -fsigned-char"

	# Detect mips systems properly
	gnuconfig_update

	./configure --prefix=/usr \
		--mandir=/usr/share/man \
		--host=${CHOST} \
		--with-docdir=/usr/share/doc/${PF} \
		--libdir=/usr/$(get_libdir) \
		--enable-depend \
		--with-gnu-ld \
		--with-maxbackends=${MAX_CONNECTIONS} \
		$myconf || die

	make || die
	cd contrib
	make || die
	if use xml2; then
		cd xml2
		make || die
	fi
}

src_install() {
	if use perl; then
		mv ${S}/src/pl/plperl/Makefile ${S}/src/pl/plperl/Makefile_orig
		sed -e "s:(INST_DYNAMIC) /usr/lib:(INST_DYNAMIC) ${D}/usr/lib:" \
			${S}/src/pl/plperl/Makefile_orig > ${S}/src/pl/plperl/Makefile
		mv ${S}/src/pl/plperl/GNUmakefile ${S}/src/pl/plperl/GNUmakefile_orig
		sed -e "s:\$(DESTDIR)\$(plperl_installdir):\$(plperl_installdir):" \
			${S}/src/pl/plperl/GNUmakefile_orig > ${S}/src/pl/plperl/GNUmakefile
	fi

	make DESTDIR=${D} LIBDIR=${D}/usr/lib install || die
#	make DESTDIR=${D} install-all-headers || die
	cd ${S}/contrib
	make DESTDIR=${D} LIBDIR=${D}/usr/lib install || die
	if use xml2; then
		cd ${S}/contrib/xml2
		make DESTDIR=${D} LIBDIR=${D}/usr/lib install || die
	fi
	cd ${S}
	if use pg-hier; then
		dodoc ${WORKDIR}/README-${P_HIERPG}.html || die
	fi
	dodoc README HISTORY COPYRIGHT INSTALL
	dodoc contrib/adddepend/*

	exeinto /usr/bin

	dodir /usr/include/postgresql/pgsql
	cp ${D}/usr/include/*.h ${D}/usr/include/postgresql/pgsql

	cd ${S}/doc
	dodoc FAQ* README.* TODO bug.template
	if use doc; then
		cd ${S}/doc
		docinto FAQ_html || die
		dodoc src/FAQ/* || die
		docinto sgml || die
		dodoc src/sgml/*.{sgml,dsl} || die
		docinto sgml/ref || die
		dodoc src/sgml/ref/*.sgml || die
		docinto TODO.detail || die
		dodoc TODO.detail/* || die
	fi

	cd ${S}
	exeinto /etc/init.d/
	newexe ${FILESDIR}/postgresql.init-8.0.0 postgresql || die
	newexe ${FILESDIR}/pg_autovacuum.init-${PV} pg_autovacuum || die
	dosed "s:___DOCDIR___:/usr/share/doc/${PF}:" /etc/init.d/pg_autovacuum

	insinto /etc/conf.d/
	newins ${FILESDIR}/postgresql.conf-8.0.0 postgresql || die
	newins ${FILESDIR}/pg_autovacuum.conf-${PV} pg_autovacuum || die
}

pkg_postinst() {
	einfo "Make sure the postgres user in /etc/passwd has an account setup with /bin/bash as the shell"

	if [ ! -f ${PG_DIR}/data/PG_VERSION ] ; then
		einfo ""
		einfo "Execute the following command"
		einfo "ebuild /var/db/pkg/dev-db/${PF}/${PF}.ebuild config"
		einfo "to setup the initial database environment."
		einfo ""
	fi

	einfo ""
	einfo "Python modules was removed from PostgreSQL package."
	einfo "If you need it, please run \"emerge dev-db/pygresql\"."
	einfo ""
}

pkg_config() {
	einfo "Creating the data directory ..."
	mkdir -p ${PG_DIR}/data
	chown -Rf postgres:postgres ${PG_DIR}
	chmod 700 ${PG_DIR}/data

	einfo "Initializing the database ..."
	if [ -f ${PG_DIR}/data/PG_VERSION ] ; then
		eerror "Postgres ${MY_PV} cannot upgrade your existing databases."
		eerror "You must remove your entire database directory to continue."
		eerror "(database directory = ${PG_DIR})."
		exit 1
	else
		local SEM=`sysctl -n kernel.sem | cut -f-3`
		local SEMMNI=`sysctl -n kernel.sem | cut -f4`
		local SEMMNI_MIN=`expr \( ${MAX_CONNECTIONS} + 15 \) / 16`
		local SHMMAX=`sysctl -n kernel.shmmax`
		local SHMMAX_MIN=134217728 # 128M

		if [ ${SEMMNI} -lt ${SEMMNI_MIN} ]; then
			eerror "The current value of SEMMNI is too low"
			eerror "for postgresql to run ${MAX_CONNECTIONS} connections"
			eerror "Temporary setting this value to ${SEMMNI_MIN} while creating the initial database."
			echo ${SEM} ${SEMMNI_MIN} > /proc/sys/kernel/sem
		fi
		sudo -u postgres /usr/bin/initdb --pgdata ${PG_DIR}/data

		if [ ! `sysctl -n kernel.sem | cut -f4` -eq ${SEMMNI} ] ; then
			echo ${SEM} ${SEMMNI} > /proc/sys/kernel/sem
			ewarn "Restoring the SEMMNI value to the previous value"
			ewarn "Please edit the last value of kernel.sem in /etc/sysctl.conf"
			ewarn "and set it to at least ${SEMMNI_MIN}"
			ewarn ""
			ewarn "  kernel.sem = ${SEM} ${SEMMNI_MIN}"
			ewarn ""
		fi

		if [ ${SHMMAX} -lt ${SHMMAX_MIN} ]; then
			eerror "The current value of SHMMAX is too low for postgresql to run."
			eerror "Please edit /etc/sysctl.conf and set this value to at least ${SHMMAX_MIN}."
			eerror ""
			eerror "  kernel.shmmax = ${SHMMAX_MIN}"
			eerror ""

		fi
	fi
}