# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-db/postgis/postgis-2.0.0.ebuild,v 1.1 2012/04/04 07:42:16 patrick Exp $

EAPI="4"

inherit eutils versionator

DESCRIPTION="Geographic Objects for PostgreSQL"
HOMEPAGE="http://postgis.refractions.net"
SRC_URI="http://postgis.refractions.net/download/${P}.tar.gz"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~ppc ~x86"
IUSE="doc gtk"

RDEPEND="
		|| (
			dev-db/postgresql-server:9.0
			dev-db/postgresql-server:8.4
			dev-db/postgresql-server:8.3
			dev-db/postgresql-server:9.1
		)
		dev-libs/libxml2:2
		>=sci-libs/geos-3.2
		>=sci-libs/proj-4.6.0
		sci-libs/gdal
		gtk? ( x11-libs/gtk+:2 )
"

DEPEND="${RDEPEND}
		doc? (
				app-text/docbook-xsl-stylesheets
				app-text/docbook-xml-dtd:4.3
				dev-libs/libxslt
				|| (
					media-gfx/imagemagick
					media-gfx/graphicsmagick[imagemagick]
				)
		)
"

RESTRICT="test"

PGIS="$(get_version_component_range 1-2)"

# not parallel safe
MAKEOPTS+=" -j1"

pkg_setup() {
	export PGSLOT="$(postgresql-config show)"
	if [[ ${PGSLOT//.} < 83 ]] ; then
		eerror "You must build ${CATEGORY}/${PN} against PostgreSQL 8.3 or higher."
		eerror "Set an appropriate slot with postgresql-config."
		die "postgresql-config not set to 8.3 or higher."
	fi

	if [[ ${PGSLOT//.} > 90 ]] ; then
		ewarn "You are building ${CATEGORY}/${PN} against a version of PostgreSQL greater than 9.0."
		ewarn "This is neither supported here nor upstream."
		ewarn "However, all indicators show that this should work."
		ewarn "Any bugs you encounter should be reported upstream."
	fi
}

src_configure() {
	local myargs=""
	use gtk && myargs+=" --with-gui"
	econf \
		${myargs}
}

src_compile() {
	# Occasionally, builds fail because of out of order compilation.
	# Otherwise, it'd be fine.
	emake
	emake -C topology
	use doc && emake -C doc
}

src_install() {
	emake DESTDIR="${D}" install
	emake -C topology DESTDIR="${D}" install

	cd "${S}"
	dodoc CREDITS TODO loader/README.* doc/*txt

	docinto topology
	dodoc topology/{TODO,README}
	dobin ./utils/postgis_restore.pl

	if use doc; then
		cd doc/html
		dohtml -r *
	fi

	insinto /etc
	doins "${FILESDIR}/postgis_dbs"

	cd "${S}/doc"
	doman man/*
	insinto /usr/share/postgresql-${PGSLOT}/contrib/postgis-${PGIS}/
	doins postgis_comments.sql
}

pkg_postinst() {
	postgresql-config update

	elog "To finish installing or updating PostGIS edit:"
	elog "    ${EROOT%/}/etc/postgis_dbs"
	elog
	elog "Then, run:"
	elog "    emerge --config =${CATEGORY}/${PF}"
}

pkg_config(){
	source "${EROOT%/}/etc/conf.d/postgresql-${PGSLOT}"
	source "${EROOT%/}/etc/postgis_dbs"
	local postgis_path="${EROOT%/}/usr/share/postgresql-${PGSLOT}/contrib/postgis-${PGIS}"

	if [[ -n ${configured} ]] ; then
		einfon "Password for PostgreSQL user '${pguser}': "
		read -s PGPASSWORD
		export PGPASSWORD
		echo
	else
		eerror "You must edit:"
		eerror "    ${EROOT%/}/etc/postgis_dbs"
		eerror "Before running 'emerge --config =${CATEGORY}/${PF}'"
		eerror
		die "Edit postgis_dbs"
	fi

	# The server we work with must be the same slot we built against.
	local server_version
	server_version=$(psql -U ${pguser} -d postgres -p ${PGPORT} \
		-Aqwtc 'SELECT version()' 2> /dev/null)
	if [[ $? = 0 ]] ; then
		server_version=$(echo ${server_version} | cut -d " " -f 2 | \
			cut -d "." -f -2 | tr -d .)
		if [[ $server_version != ${PGSLOT//.} ]] ; then
			unset PGPASSWORD
			eerror "Server version must be ${PGSLOT}.x"
			die "Server version isn't ${PGSLOT}.x"
		fi
	else
		unset PGPASSWORD
		eerror "Is the server running?"
		die "Couldn't connect to server."
	fi

	local retval
	safe_exit() {
		unset PGPASSWORD
		sed -e 's/\(configured\)/#\1/' -i "${EROOT%/}/etc/postgis_dbs"
		eend $retval
		eerror "All actions could not be performed."
		eerror "Read above to see what failed."
		eerror "Once you fix the issue, you'll need to edit:"
		eerror "    ${EROOT%/}/etc/postgis_dbs"
		eerror "As some things may have succeeded."
		eerror
		die "All actions could not be performed"
	}

	local db
	for db in ${databases[@]} ; do
		ebegin "Performing CREATE LANGUAGE on ${db}"
		createlang -U ${pguser} -p ${PGPORT} plpgsql ${db}
		retval=$?
		# In this case, only error code 1 is fatal
		[[ $retval == 1 ]] && safe_exit || eend 0

		ebegin "Enabling PostGIS on ${db}"
		psql -q -U ${pguser} -p ${PGPORT} -d ${db} \
			-f "${postgis_path}/postgis.sql"
		retval=$?
		[[ $retval == 0 ]] && eend 0 || safe_exit
	done

	for db in ${templates[@]} ; do
		ebegin "Creating template database '${db}'"
		createdb -p ${PGPORT} -U ${pguser} -O ${pguser} -T ${from_template} \
			${db} "PostGIS Template"
		retval=$?
		[[ $retval != 0 ]] && safe_exit

		psql -q -U ${pguser} -p ${PGPORT} -c \
			"UPDATE pg_database \
			 SET datistemplate = TRUE, datallowconn = TRUE \
			 WHERE datname = '${db}'"
		retval=$?
		[[ $retval != 0 ]] && safe_exit

		createlang -U ${pguser} -p ${PGPORT} plpgsql ${db}
		retval=$?
		# In this case, only error code 1 is fatal
		[[ $retval == 1 ]] && safe_exit

		psql -q -U ${pguser} -p ${PGPORT} -d ${db} \
			-f "${postgis_path}/postgis.sql"
		retval=$?
		[[ $retval == 0 ]] && eend 0 || safe_exit
	done

	for db in ${epsg_databases[@]} ; do
		ebegin "Adding EPSG to ${db}"
		psql -q -U ${pguser} -p ${PGPORT} -d ${db} \
			-f "${postgis_path}/spatial_ref_sys.sql"
		retval=$?
		[[ $retval == 0 ]] && eend 0 || safe_exit
	done

	for db in ${comment_databases[@]} ; do
		ebegin "Adding comments on ${db}"
		psql -q -U ${pguser} -p ${PGPORT} -d ${db} \
			-f "${postgis_path}/postgis_comments.sql"
		retval=$?
		[[ $retval == 0 ]] && eend 0 || safe_exit
	done

	for db in ${upgrade_from_1_3[@]} ; do
		ebegin "Upgrading from PostGIS 1.3 to ${PGIS} on ${db}"
		psql -q -U ${pguser} -p ${PGPORT} -d ${db} \
			-f "${postgis_path}/postgis_upgrade_13_to_${PGIS//.}.sql"
		retval=$?
		[[ $retval == 0 ]] && eend 0 || safe_exit
	done

	for db in ${upgrade_from_1_4[@]} ; do
		ebegin "Upgrading from PostGIS 1.4 to ${PGIS} on ${db}"
		psql -q -U ${pguser} -p ${PGPORT} -d ${db} \
			-f "${postgis_path}/postgis_upgrade_14_to_${PGIS//.}.sql"
		retval=$?
		[[ $retval == 0 ]] && eend 0 || safe_exit
	done

	for db in ${upgrade_from_1_5[@]} ; do
		ebegin "Minor upgrade for PostGIS ${PGIS} on ${db}"
		psql -q -U ${pguser} -p ${PGPORT} -d ${db} \
			-f "${postgis_path}/postgis_upgrade_${PGIS//.}_minor.sql"
		retval=$?
		[[ $retval == 0 ]] && eend 0 || safe_exit
	done

	# Clean up and make it so the user has to edit postgis_dbs again that
	# way this script won't step on any toes due to user error.
	unset PGPASSWORD
	sed -e 's/\(configured\)/#\1/' -i "${EROOT%/}/etc/postgis_dbs"
	einfo "PostgreSQL ${PGSLOT} is now PostGIS enabled."
	einfo
	einfo "To enable other databases, change the default slot:"
	einfo "    postgresql-config set <slot>"
	einfo "Then, emerge this package again:"
	einfo "    emerge -av =${CATEGORY}/${PF}"
}