# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-db/postgresql-server/postgresql-server-8.2.18.ebuild,v 1.1 2010/10/06 14:58:10 patrick Exp $

EAPI="2"

WANT_AUTOMAKE="none"
inherit eutils multilib versionator autotools

KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~ppc ~s390 ~sh ~sparc ~x86"

DESCRIPTION="PostgreSQL server"
HOMEPAGE="http://www.postgresql.org/"
SRC_URI="mirror://postgresql/source/v${PV}/postgresql-${PV}.tar.bz2"
LICENSE="POSTGRESQL"
SLOT="$(get_version_component_range 1-2)"
IUSE_LINGUAS="
	linguas_af linguas_cs linguas_de linguas_es linguas_fa linguas_fr
	linguas_hr linguas_hu linguas_it linguas_ko linguas_nb linguas_pl
	linguas_pt_BR linguas_ro linguas_ru linguas_sk linguas_sl linguas_sv
	linguas_tr linguas_zh_CN linguas_zh_TW"
IUSE="doc perl python selinux tcl xml nls kernel_linux ${IUSE_LINGUAS}"

wanted_languages() {
	for u in ${IUSE_LINGUAS} ; do
		use $u && echo -n "${u#linguas_} "
	done
}

RDEPEND="~dev-db/postgresql-base-${PV}:${SLOT}
	perl? ( >=dev-lang/perl-5.6.1-r2 )
	python? ( >=dev-lang/python-2.2 dev-python/egenix-mx-base )
	selinux? ( sec-policy/selinux-postgresql )
	tcl? ( >=dev-lang/tcl-8 )
	xml? ( dev-libs/libxml2 dev-libs/libxslt )"
DEPEND="${RDEPEND}
	sys-devel/flex
	xml? ( dev-util/pkgconfig )"
PDEPEND="doc? ( ~dev-db/postgresql-docs-${PV} )"

S="${WORKDIR}/postgresql-${PV}"

pkg_setup() {
	enewgroup postgres 70
	enewuser postgres 70 /bin/bash /var/lib/postgresql postgres
}

src_prepare() {

	epatch "${FILESDIR}/postgresql-${SLOT}-common.patch" \
		"${FILESDIR}/postgresql-${SLOT}-server.patch"

	if use test; then
		sed -e "s|/no/such/location|${S}/src/test/regress/tmp_check/no/such/location|g" -i src/test/regress/{input,output}/tablespace.source
	else
		echo "all install:" > "${S}/src/test/regress/GNUmakefile"
	fi

	eautoconf
}

src_configure() {
	# TODO: test if PPC really cannot work with other CFLAGS settings
	# use ppc && CFLAGS="-pipe -fsigned-char"

	# eval is needed to get along with pg_config quotation of space-rich entities.
	eval econf "$(/usr/$(get_libdir)/postgresql-${SLOT}/bin/pg_config --configure)" \
		--disable-thread-safety \
		$(use_with perl) \
		$(use_with python) \
		$(use_with tcl) \
		--with-includes="/usr/include/postgresql-${SLOT}/" \
		"$(has_version ~dev-db/postgresql-base-${PV}[nls] && use_enable nls nls "$(wanted_languages)")" \
		|| die "configure failed"
}
src_compile() {
	for bd in . contrib $(use xml && echo contrib/xml2); do
		PATH="/usr/$(get_libdir)/postgresql-${SLOT}/bin:${PATH}" \
			emake -C $bd -j1 \
				PGXS=$(/usr/$(get_libdir)/postgresql-${SLOT}/bin/pg_config --pgxs) \
				PGXS_IN_SERVER=1 PGXS_WITH_SERVER="${S}/src/backend/postgres" \
				NO_PGXS=0 USE_PGXS=1 docdir=/usr/share/doc/${PF} || die "emake in $bd failed"
	done
}

src_install() {
	if use perl ; then
		mv -f "${S}/src/pl/plperl/GNUmakefile" "${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

	for bd in . contrib $(use xml && echo contrib/xml2) ; do
		PATH="/usr/$(get_libdir)/postgresql-${SLOT}/bin:${PATH}" \
			emake install -C $bd -j1 DESTDIR="${D}" \
				PGXS_IN_SERVER=1 PGXS_WITH_SERVER="${S}/src/backend/postgres" \
				PGXS=$(/usr/$(get_libdir)/postgresql-${SLOT}/bin/pg_config --pgxs) \
				NO_PGXS=0 USE_PGXS=1 docdir=/usr/share/doc/${PF} || die "emake install in $bd failed"
	done

	rm -rf "${D}/usr/share/postgresql-${SLOT}/man/man7/" "${D}/usr/share/doc/${PF}/html"
	rm "${D}"/usr/share/postgresql-${SLOT}/man/man1/{clusterdb,create{db,lang,user},drop{db,lang,user},ecpg,pg_{config,dump,dumpall,restore},psql,reindexdb,vacuumdb}.1

	dodoc README HISTORY doc/{README.*,TODO,bug.template}

	dodir /etc/eselect/postgresql/slots/${SLOT}
	cat >"${D}/etc/eselect/postgresql/slots/${SLOT}/service" <<-__EOF__
		postgres_ebuilds="\${postgres_ebuilds} ${PF}"
		postgres_service="postgresql-${SLOT}"
	__EOF__

	newinitd "${FILESDIR}/postgresql.init-${SLOT}-r1" postgresql-${SLOT} || die "Inserting init.d-file failed"
	newconfd "${FILESDIR}/postgresql.conf-${SLOT}-r1" postgresql-${SLOT} || die "Inserting conf.d-file failed"

	# Workaround for paludis
	[ -f "${ROOT}/var/run/postgresql/.keep" ] || keepdir /var/run/postgresql
	fperms 0770 /var/run/postgresql
	fowners postgres:postgres /var/run/postgresql
}

pkg_postinst() {
	eselect postgresql update
	[[ "$(eselect postgresql show)" = "(none)" ]] && eselect postgresql set ${SLOT}
	[[ "$(eselect postgresql show-service)" = "(none)" ]] && eselect postgresql set-service ${SLOT}

	ewarn "Please note that the standard location of the socket has changed from /tmp"
	ewarn "to /var/run/postgresql and you have to be in the 'postgres' group to access"
	ewarn "the socket."
	ewarn "This can break applications which have the standard location hard-coded."
	ewarn "If such an application links against the libpq, please re-emerge it,"
	ewarn "if that doesn't help or the application accesses the socket without using libpq,"
	ewarn "please file a bug-report."
	ewarn "You can set PGOPTS='-k /tmp' in /etc/conf.d/postgresql-${SLOT} to restore the original location."

	elog "Before initializing the database, you may want to edit PG_INITDB_OPTS so that it"
	elog "contains your preferred locale in:"
	elog
	elog "    /etc/conf.d/postgresql-${SLOT}"
	elog
	elog "Then, execute the following command to setup the initial database environment:"
	elog
	elog "    emerge --config =${CATEGORY}/${PF}"
	elog
	elog "The autovacuum function, which was in contrib, has been moved to the main"
	elog "PostgreSQL functions starting with 8.1."
	elog "You can enable it in the clusters postgresql.conf."
}

pkg_postrm() {
	eselect postgresql update
}

pkg_config() {
	[[ -f /etc/conf.d/postgresql-${SLOT} ]] && source /etc/conf.d/postgresql-${SLOT}
	[[ -z "${PGDATA}" ]] && PGDATA="/var/lib/postgresql/${SLOT}/data"

	# environment.bz2 may not contain the same locale as the current system
	# locale. Unset and source from the current system locale.
	if [ -f /etc/env.d/02locale ]; then
		unset LANG
		unset LC_CTYPE
		unset LC_NUMERIC
		unset LC_TIME
		unset LC_COLLATE
		unset LC_MONETARY
		unset LC_MESSAGES
		unset LC_ALL
		source /etc/env.d/02locale
		[ -n "${LANG}" ] && export LANG
		[ -n "${LC_CTYPE}" ] && export LC_CTYPE
		[ -n "${LC_NUMERIC}" ] && export LC_NUMERIC
		[ -n "${LC_TIME}" ] && export LC_TIME
		[ -n "${LC_COLLATE}" ] && export LC_COLLATE
		[ -n "${LC_MONETARY}" ] && export LC_MONETARY
		[ -n "${LC_MESSAGES}" ] && export LC_MESSAGES
		[ -n "${LC_ALL}" ] && export LC_ALL
	fi

	einfo "You can pass options to initdb by setting the PG_INITDB_OPTS variable."
	einfo "More information can be found here:"
	einfo "    http://www.postgresql.org/docs/${SLOT}/static/creating-cluster.html"
	einfo "    http://www.postgresql.org/docs/${SLOT}/static/app-initdb.html"
	einfo "Simply add the options you would have added to initdb to the PG_INITDB_OPTS"
	einfo "variable."
	einfo
	einfo "You can change the directory where the database cluster is being created by"
	einfo "setting the PGDATA variable."
	einfo
	einfo "PG_INITDB_OPTS is currently set to:"
	einfo "    \"${PG_INITDB_OPTS}\""
	einfo "and the database cluster will be created in:"
	einfo "    \"${PGDATA}\""
	einfo "Are you ready to continue? (Y/n)"
	read answer
	[ -z $answer ] && answer=Y
	[ "$answer" == "Y" ] || [ "$answer" == "y" ] || die "aborted"

	if [[ -f "${PGDATA}/PG_VERSION" ]] ; then
		eerror "The given directory \"${PGDATA}\" already contains a database cluster."
		die "cluster already exists"
	fi

	[ -z "${PG_MAX_CONNECTIONS}" ] && PG_MAX_CONNECTIONS="128"
	einfo "Checking system parameters..."

	if ! use kernel_linux ; then
		SKIP_SYSTEM_TESTS=yes
		einfo "  Tests not supported on this OS (yet)"
	fi

	if [ -z ${SKIP_SYSTEM_TESTS} ] ; then
		einfo "Checking whether your system supports at least ${PG_MAX_CONNECTIONS} connections..."

		local SEMMSL=$(sysctl -n kernel.sem | cut -f1)
		local SEMMNS=$(sysctl -n kernel.sem | cut -f2)
		local SEMMNI=$(sysctl -n kernel.sem | cut -f4)
		local SHMMAX=$(sysctl -n kernel.shmmax)

		local SEMMSL_MIN=17
		local SEMMNS_MIN=$(( ( ${PG_MAX_CONNECTIONS}/16 ) * 17 ))
		local SEMMNI_MIN=$(( ( ${PG_MAX_CONNECTIONS}+15 ) / 16 ))
		local SHMMAX_MIN=$(( 500000 + ( 30600 * ${PG_MAX_CONNECTIONS} ) ))

		for p in SEMMSL SEMMNS SEMMNI SHMMAX ; do
			if [ $(eval echo \$$p) -lt $(eval echo \$${p}_MIN) ] ; then
				eerror "The value for ${p} $(eval echo \$$p) is below the recommended value $(eval echo \$${p}_MIN)"
				eerror "You have now several options:"
				eerror "  - Change the mentioned system parameter"
				eerror "  - Lower the number of max.connections by setting PG_MAX_CONNECTIONS to a value lower than ${PG_MAX_CONNECTIONS}"
				eerror "  - Set SKIP_SYSTEM_TESTS in case you want to ignore this test completely"
				eerror "More information can be found here:"
				eerror "  http://www.postgresql.org/docs/${SLOT}/static/kernel-resources.html"
				die "System test failed."
			fi
		done
		einfo "Passed."
	else
		einfo "Skipped."
	fi

	einfo "Creating the data directory ..."
	mkdir -p "${PGDATA}"
	chown -Rf postgres:postgres "${PGDATA}"
	chmod 0700 "${PGDATA}"

	einfo "Initializing the database ..."

	su postgres -c "/usr/$(get_libdir)/postgresql-${SLOT}/bin/initdb --pgdata \"${PGDATA}\" ${PG_INITDB_OPTS}"

	einfo
	einfo "You can use the '${ROOT}/etc/init.d/postgresql-${SLOT}' script to run PostgreSQL"
	einfo "instead of 'pg_ctl'."
	einfo
}

src_test() {
	einfo ">>> Test phase [check]: ${CATEGORY}/${PF}"
	PATH="/usr/$(get_libdir)/postgresql-${SLOT}/bin:${PATH}" \
		emake -j1 check \
			PGXS=$(/usr/$(get_libdir)/postgresql-${SLOT}/bin/pg_config --pgxs) \
			NO_PGXS=0 USE_PGXS=1 SLOT=${SLOT} || die "Make check failed. See above for details."

	einfo "Yes, there are other tests which could be run."
	einfo "... and no, we don't plan to add/support them."
	einfo "For now, the main regressions tests will suffice. If you think other tests are"
	einfo "necessary, please submit a bug including a patch for this ebuild to enable them."
}