#!/usr/bin/make -f
# -*- makefile -*-

# Uncomment this to turn on verbose mode.
#export DH_VERBOSE=1

# This has to be exported to make some magic below work.
export DH_OPTIONS

# Enable hardening build flags
export DEB_BUILD_MAINT_OPTIONS=hardening=+all

# Disable PIE on Ubuntu where it's still problematic
VENDOR_DERIVES_FROM_UBUNTU ?= $(shell dpkg-vendor --derives-from Ubuntu && echo yes)
DISTRIBUTION_RELEASE       := $(shell lsb_release -cs)

ifeq ($(VENDOR_DERIVES_FROM_UBUNTU),yes)
  ifneq (,$(filter $(DISTRIBUTION_RELEASE),trusty xenial bionic))
    export DEB_BUILD_MAINT_OPTIONS=hardening=+all,-pie
  endif
endif

include /usr/share/dpkg/architecture.mk
include /usr/share/dpkg/pkg-info.mk

# Magic to automatically create a debian/control file for the (or all)
# supported versions of Postgres.
#
# Blatantly copied from
# /usr/share/postgresql-common/pgxs_debian_control.mk and extended to
# support NEWEST_VERSION and fiddle with postgis 2.0 transitional
# packages.
debian/control: debian/control.in debian/pgversions
	(set -e; \
	VERSIONS=`pg_buildext supported-versions $(CURDIR)` || exit $$?; \
	NEWEST_VERSION=`pg_buildext supported-versions $(CURDIR) | tail -1` || exit $$?; \
	grep-dctrl -vP PGVERSION $< \
		| sed -e "s:NEWEST_PGVERSION:$$NEWEST_VERSION:" > $@.pgxs_tmp; \
	for v in $$VERSIONS; do \
		grep-dctrl -P PGVERSION $< \
			| sed -e "s:PGVERSION:$$v:" >> $@.pgxs_tmp; \
	done; \
	mv $@.pgxs_tmp $@) || (rm -f $@.pgxs_tmp; exit 1)

CHECK_FAIL = exit 2
# Ignore test failure on problematic architectures
ifneq (,$(filter $(DEB_BUILD_ARCH),mips mips64el mipsel s390x alpha hppa hurd-i386 kfreebsd-i386 powerpc ppc64 sparc64))
	CHECK_FAIL = exit 0
endif

# Upstream version (including ~rcN) for symbols version
UPSTREAM_VERSION := $(shell echo $(DEB_VERSION_UPSTREAM) | sed -e 's/\+.*//')

MAJOR_VERSION = $(shell grep ^POSTGIS_MAJOR_VERSION Version.config | cut -d= -f2)
MINOR_VERSION = $(shell grep ^POSTGIS_MINOR_VERSION Version.config | cut -d= -f2)
MICRO_VERSION = $(shell grep ^POSTGIS_MICRO_VERSION Version.config | cut -d= -f2)
POSTGIS_VERSION = $(MAJOR_VERSION).$(MINOR_VERSION).$(MICRO_VERSION)
ifeq ($(POSTGIS_VERSION),..)
$(error Cannot detect Postgis version, fix debian/rules)
endif

LIBLWGEOM_CURRENT   = $(shell grep ^LIBLWGEOM_IFACE_CUR Version.config | cut -d= -f2)
LIBLWGEOM_REVISION  = $(shell grep ^LIBLWGEOM_IFACE_REV Version.config | cut -d= -f2)
LIBLWGEOM_AGE       = $(shell grep ^LIBLWGEOM_IFACE_AGE Version.config | cut -d= -f2)
LIBLWGEOM_SOVERSION = $(shell expr $(LIBLWGEOM_CURRENT) - $(LIBLWGEOM_AGE))
ifeq ($(LIBLWGEOM_SOVERSION),)
$(error Cannot detect liblwgeom SOVERSION, fix debian/rules)
endif

# For the Postgres APT repository, we want to support multiple
# Postgres versions. However, docs and the JDBC jar only need to be
# built once - in the main directory.
NEWEST_POSTGRES_VERSION = $(shell pg_buildext supported-versions $(CURDIR) | tail -1)
ifeq ($(NEWEST_POSTGRES_VERSION),)
$(error Cannot detect Postgres version, check debian/pgversions and pg_buildext)
endif

OTHER_POSTGRES_VERSIONS = $(shell pg_buildext supported-versions $(CURDIR) \
	| grep -v "$(NEWEST_POSTGRES_VERSION)")

COMMON_CONFIGURE_ARGS = --host=$(DEB_HOST_GNU_TYPE) \
	--build=$(DEB_BUILD_GNU_TYPE) \
	--prefix=/usr \
	--exec-prefix=\$${prefix} \
	--docdir=\$${prefix}/share/doc \
	--mandir=\$${prefix}/share/man \
	--infodir=\$${prefix}/share/info \
	--without-interrupt-tests \
	--with-gui

NJOBS := -j1
ifneq (,$(filter parallel=%,$(subst $(COMMA), ,$(DEB_BUILD_OPTIONS))))
NJOBS := -j$(subst parallel=,,$(filter parallel=%,$(subst $(COMMA), ,$(DEB_BUILD_OPTIONS))))
endif

%:
	dh $@ --with autoreconf --parallel

override_dh_autoreconf:
	dh_autoreconf ./autogen.sh

override_dh_clean:
	dh_clean build-arch-stamp

override_dh_auto_clean: debian/control
#	Clean all separate build directories.
	(set -e; \
	for PGVER in $(OTHER_POSTGRES_VERSIONS); do \
		rm -rf $(CURDIR)/debian/build-$$PGVER; \
	done)

	[ ! -f GNUmakefile ] || $(MAKE) $(NJOBS) distclean || true
	[ ! -f GNUmakefile ] || $(MAKE) $(NJOBS) -C doc images-clean || true

#	Cleanup after the Makefile
	rm -f postgis/postgis_upgrade_20_minor.sql.in \
		raster/rt_pg/rtpostgis_drop.sql \
		raster/rt_pg/rtpostgis_upgrade_cleanup.sql

#	Cleanup auto-generated packaging control files
	rm -f $(CURDIR)/debian/postgresql-*-postgis-*.install
	rm -f $(CURDIR)/debian/postgresql-*-postgis-*-scripts.install
	rm -f loader/cunit/cu_tester
	rm -rf liblwgeom/cunit/.libs

#	Cleanup the temporary environment file.
	rm -f postgis-check-env.tmp

override_dh_auto_configure:
#	Copy sources required to build extensions for all but the most
#	recent Postgres version. Unfortunately, Postgis doesn't support
#	vpath builds.
	(set -e; \
	for PGVER in $(OTHER_POSTGRES_VERSIONS); do \
		mkdir $(CURDIR)/debian/build-$$PGVER; \
		for FILE in `ls $(CURDIR) | grep -v debian`; do \
			cp -a $$FILE $(CURDIR)/debian/build-$$PGVER; \
		done; \
	done)

#	PostGIS for the most recent PostgreSQL version
	@echo " ### configuring $(NEWEST_POSTGRES_VERSION) ###"
	./configure $(COMMON_CONFIGURE_ARGS) \
		--datadir=\$${prefix}/share/postgresql-$(NEWEST_POSTGRES_VERSION)-postgis \
		--with-pgconfig=/usr/lib/postgresql/$(NEWEST_POSTGRES_VERSION)/bin/pg_config

#	PostGIS for all older Postgres versions
	(set -e; \
	for PGVER in $(OTHER_POSTGRES_VERSIONS); do \
		echo " ### configuring $$PGVER ###"; \
		cd $(CURDIR)/debian/build-$$PGVER; \
		./configure $(COMMON_CONFIGURE_ARGS) \
			--datadir=\$${prefix}/share/postgresql-$$PGVER-postgis \
			--with-pgconfig=/usr/lib/postgresql/$$PGVER/bin/pg_config; \
	done)

	# remove file erroneously still generated by configure in 2.5.0beta1
	# https://github.com/postgis/postgis/pull/270
	rm -vf extensions/postgis_tiger_geocoder/postgis_tiger_geocoder.control
	rm -vf debian/build-*/extensions/postgis_tiger_geocoder/postgis_tiger_geocoder.control

override_dh_auto_build-arch: build-arch-stamp
build-arch-stamp:
#	Build against the newest Postgres version
	@echo " ### building $(NEWEST_POSTGRES_VERSION) ###"
	$(MAKE) $(NJOBS)
	$(MAKE) $(NJOBS) -C doc

#	Build against all other Postgres versions
	(set -e; \
	for PGVER in $(OTHER_POSTGRES_VERSIONS); do \
		echo " ### building $$PGVER ###"; \
		$(MAKE) $(NJOBS) -C $(CURDIR)/debian/build-$$PGVER; \
	done)

	touch $@

override_dh_auto_build-indep: build-arch-stamp
#	Let PostGIS create a perl script from postgis_restore.pl.in
	$(MAKE) $(NJOBS) -C utils

#	Create a few SQL scripts that the Makefiles are not clever enough
#	to resolve, when building arch-indep only.
	$(MAKE) $(NJOBS) -C postgis postgis.sql postgis_upgrade.sql
	$(MAKE) $(NJOBS) -C raster/rt_pg rtpostgis.sql rtpostgis_upgrade.sql
	$(MAKE) $(NJOBS) -C topology topology.sql topology_upgrade.sql

#	This creates the required SQL scripts. Again, the Makefile is not
#	clever enough to run this before 'install'.
	$(MAKE) $(NJOBS) -C extensions

override_dh_auto_test-indep:

override_dh_auto_test-arch:
ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
#   Run unit tests (against the newest Postgres version, first)
	echo "LD_PRELOAD = '$(CURDIR)/liblwgeom/.libs/liblwgeom-$(MAJOR_VERSION).$(MINOR_VERSION).so.$(LIBLWGEOM_SOVERSION)'" \
		> $(CURDIR)/postgis-check-env.tmp
	echo " ### testing $(NEWEST_POSTGRES_VERSION) ###"
	pg_virtualenv -v $(NEWEST_POSTGRES_VERSION) \
		-c '--environment $(CURDIR)/postgis-check-env.tmp' \
		make check RUNTESTFLAGS="-v" || $(CHECK_FAIL)

#	Test against all other Postgres versions
	set -e; \
	for PGVER in $(OTHER_POSTGRES_VERSIONS); do \
		echo " ### testing $$PGVER ###"; \
		echo "LD_PRELOAD = '$(CURDIR)/debian/build-$$PGVER/liblwgeom/.libs/liblwgeom-$(MAJOR_VERSION).$(MINOR_VERSION).so.$(LIBLWGEOM_SOVERSION)'" \
			> $(CURDIR)/postgis-check-env.tmp; \
		pg_virtualenv -v $$PGVER \
			-c '--environment $(CURDIR)/postgis-check-env.tmp' \
			make -C $(CURDIR)/debian/build-$$PGVER check RUNTESTFLAGS="-v" || $(CHECK_FAIL); \
	done
endif

override_dh_auto_install-indep:
#	Install the most recent Postgres version. Note that we used to
#	install only utils and extensions. However, there are sql scripts
#	in postgis, raster and topology as well, which need to be
#	installed for the -scripts package(s).
	$(MAKE) $(NJOBS) install DESTDIR=$(CURDIR)/debian/tmp

#	Install all older Postgres versions.
	(set -e; \
	for PGVER in $(OTHER_POSTGRES_VERSIONS); do \
		$(MAKE) $(NJOBS) -C $(CURDIR)/debian/build-$$PGVER \
			install DESTDIR=$(CURDIR)/debian/tmp; \
	done)

#	Compile and install docs
	$(MAKE) -C doc docs-install \
		DESTDIR=$(CURDIR)/debian/tmp \
		PGSQL_DOCDIR=/usr/share/doc

override_dh_install-indep:
	dh_install -i

#	Set executable bit for postgis_restore.pl
	chmod 755 $(CURDIR)/debian/*/usr/share/postgresql/*/contrib/postgis-*/postgis_restore.pl

#	De-duplicate upgrade scripts - using hard-links for exactly one
#	directory (so we don't generate cross-directory hard ones).
	(set -e; \
	for PGVER in $(OTHER_POSTGRES_VERSIONS) $(NEWEST_POSTGRES_VERSION); do \
		rdfind -makeresultsfile false -makehardlinks true \
			$(CURDIR)/debian/postgresql-$$PGVER-postgis-*-scripts/usr/share/postgresql/$$PGVER/extension; \
	done)

#	Don't include desktop file & application icons in scripts package
	rm -rf debian/postgresql-*-postgis-*-scripts/usr/share/postgresql/*/applications
	rm -rf debian/postgresql-*-postgis-*-scripts/usr/share/postgresql/*/icons

override_dh_auto_install-arch:
#	Install the extension for the most recent Postgres verison
	$(MAKE) $(NJOBS) install DESTDIR=$(CURDIR)/debian/tmp

#	Install the extensions for the older Postgres versions
	(set -e; \
	for PGVER in $(OTHER_POSTGRES_VERSIONS); do \
		$(MAKE) $(NJOBS) -C $(CURDIR)/debian/build-$$PGVER \
			install DESTDIR=$(CURDIR)/debian/tmp; \
	done)

#	Install docs and man pages
	$(MAKE) -C doc man-install \
		DESTDIR=$(CURDIR)/debian/tmp \
		PGSQL_DOCDIR=/usr/share/doc \
		PGSQL_MANDIR=/usr/share/man

#	Auto-create required .install file for each Postgres major version
	(set -e; \
	for PGVER in $(OTHER_POSTGRES_VERSIONS) $(NEWEST_POSTGRES_VERSION); do \
		cat $(CURDIR)/debian/postgresql-generic-postgis.install.in \
			| sed -e "s/@PGVERSION@/$$PGVER/" \
			> $(CURDIR)/debian/postgresql-$$PGVER-postgis-$(MAJOR_VERSION).$(MINOR_VERSION).install; \
		cat $(CURDIR)/debian/postgresql-generic-postgis-scripts.install.in \
			| sed -e "s/@PGVERSION@/$$PGVER/" \
			> $(CURDIR)/debian/postgresql-$$PGVER-postgis-$(MAJOR_VERSION).$(MINOR_VERSION)-scripts.install; \
	done)

#	Copy binaries from the NEWEST_POSTGRES_VERSION build to the
#	'postgis' binary package.
	mkdir -p $(CURDIR)/debian/postgis/usr/bin
	cp -r $(CURDIR)/debian/tmp/usr/lib/postgresql/$(NEWEST_POSTGRES_VERSION)/bin/* \
		$(CURDIR)/debian/postgis/usr/bin/

#	Move GUI binaries to 'postgis-gui' binary package
	mkdir -p $(CURDIR)/debian/postgis-gui/usr/bin
	mv $(CURDIR)/debian/postgis/usr/bin/*gui $(CURDIR)/debian/postgis-gui/usr/bin/

#	Move desktop file and application icons from the NEWEST_POSTGRES_VERSION build
	mkdir -p $(CURDIR)/debian/postgis-gui/usr/share
	mv $(CURDIR)/debian/tmp/usr/share/postgresql/$(NEWEST_POSTGRES_VERSION)/applications \
		$(CURDIR)/debian/postgis-gui/usr/share/
	mv $(CURDIR)/debian/tmp/usr/share/postgresql/$(NEWEST_POSTGRES_VERSION)/icons \
		$(CURDIR)/debian/postgis-gui/usr/share/

override_dh_install-arch:
	dh_install -a

override_dh_makeshlibs:
	dh_makeshlibs -Xusr/lib/postgis -- -v$(UPSTREAM_VERSION)

.PHONY: debian/control