# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-db/postgis/postgis-1.5.2-r3.ebuild,v 1.3 2011/06/17 10:14:09 scarabeus 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
		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

		# 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 ${espg_databases[@]} ; do
			ebegin "Adding ESPG 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}"
	else
		eerror "You must edit:"
		eerror "    ${EROOT%/}/etc/postgis_dbs"
		eerror "Before running 'emerge --config =${CATEGORY}/${PF}'"
		eerror
		die "Edit postgis_dbs"
	fi
}