# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-db/postgresql/postgresql-7.4.2-r2.ebuild,v 1.15 2004/07/05 22:20:02 mholzer Exp $

inherit eutils gnuconfig flag-o-matic

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

LICENSE="POSTGRESQL"
SLOT="0"
KEYWORDS="~x86 ~ppc ~sparc ~mips ~alpha arm ~hppa ~amd64 ~ia64 s390 ppc64"
IUSE="ssl nls java python tcltk perl libg++ pam readline zlib doc pg-hier pg-vacuumdelay pg-intdatetime"

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 )
	java? ( >=virtual/jdk-1.3* >=dev-java/ant-1.3
		dev-java/java-config )
	ssl? ( >=dev-libs/openssl-0.9.6-r1 )
	nls? ( sys-devel/gettext )"
# java dep workaround for portage bug
# x86? ( java? ( =dev-java/sun-jdk-1.3* >=dev-java/ant-1.3 ) )
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 )
	java? ( >=virtual/jdk-1.3* )
	ssl? ( >=dev-libs/openssl-0.9.6-r1 )"

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 7 ] || [ ${PG_MAJOR} -eq 7 -a ${PG_MINOR} -lt 4 ] ; then
			eerror "Postgres ${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
}

check_java_config() {
	JDKHOME="`java-config --jdk-home`"
	if [[ -z ${JDKHOME} && ! -d ${JDKHOME} ]]; then
		NOJDKERROR="You need to use java-config to set your JVM to a JDK!"
		eerror "${NOJDKERROR}"
		die "${NOJDKERROR}"
	fi
}

src_unpack() {
	unpack ${A} || die
	epatch ${FILESDIR}/${P}-gentoo.patch
	if use pg-hier; then
		cd ${S} || die
		epatch ${WORKDIR}/${P_HIERPG}.diff
	fi

	if use pg-vacuumdelay; then
		cd ${S} || die
		epatch ${FILESDIR}/${P}-vacuum-delay.patch
	fi

	if [ "${ARCH}" = "hppa" ]
	then
		cd ${S}
		epatch ${FILESDIR}/${PN}-7.4.1-hppa-testandset.patch
	fi
}

src_compile() {
	filter-flags -ffast-math

	if use java; then
		check_java_config
	fi

	local myconf
	use tcltk && myconf="--with-tcl"
	use python && myconf="$myconf --with-python"
	use perl && myconf="$myconf --with-perl"
	use java && myconf="$myconf --with-java"
	use ssl && myconf="$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
	use mips && gnuconfig_update

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

	make || die
	cd contrib
	make || die
}

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
	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

	if use java; then
		# we need to remove jar file after dojar; otherwise two same jar
		# file are installed.
		dojar ${D}/usr/share/postgresql/java/postgresql.jar || die
		rm ${D}/usr/share/postgresql/java/postgresql.jar
		dojar ${D}/usr/share/postgresql/java/postgresql-examples.jar || die
		rm ${D}/usr/share/postgresql/java/postgresql-examples.jar
	fi

	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 ${FILESDIR}/postgresql.init-${PV} 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 ${FILESDIR}/postgresql.conf-${PV} 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
		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 7 ] || [ ${PG_MAJOR} -eq 7 -a ${PG_MINOR} -eq 4 ] ; then
			ewarn ""
			ewarn "If you are upgrading from PostgreSQL 7.4 or 7.4.1, it is strongly recommended"
			ewarn "that you read the release notes concerning changes to the system catalogs."
			ewarn "You can run 7.4.2 without rerunning initdb, however you may still experience"
			ewarn "random crashes due to an error in pg_statistic."
			ewarn ""
			ewarn "If you prefer not to re-initdb your installation, the release notes contain"
			ewarn "a procedure for manually correcting the problem."
			ewarn ""
		fi

		if use pg-hier; then
			ewarn ""
			ewarn "REQUIRED!! After installing patched PostgreSQL by pg-hier"
			ewarn "it is required to run 'initdb'. Without this Pg will fail "
			ewarn "with error "
			ewarn "ERROR: did not find '}' at end of input node. "
			ewarn ""
		fi
	else
		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/pygresq\"."
	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
		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 7 ] || [ ${PG_MAJOR} -eq 7 -a ${PG_MINOR} -lt 3 ] ; then
			eerror "Postgres ${PV} cannot upgrade your existing databases."
			eerror "You must remove your entire database directory to continue."
			eerror "(database directory = ${PG_DIR})."
			exit 1
		else
			einfon "A postgres data directory already exists from version "; cat ${PG_DIR}/data/PG_VERSION
			einfo "Read the documentation to check how to upgrade to version ${PV}."
		fi
	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

		einfo "If you are upgrading from a pre-7.3 version of PostgreSQL, please read"
		einfo "the README.adddepend file for information on how to properly migrate"
		einfo "all serial columns, unique keys and foreign keys to this version."
	fi
}