#!/usr/bin/make -f
ifneq ($(shell which tclsh8.6),)
TCL_VER := 8.6
else
TCL_VER := 8.5
endif
MAJOR_VER := 10
#CASSERT_FLAGS := --enable-cassert

CATVERSION = $(shell awk '/CATALOG_VERSION_NO/ { print $$3 }' src/include/catalog/catversion.h)

DEB_HOST_ARCH = $(shell dpkg-architecture -qDEB_HOST_ARCH)

# find tclconfig in multi-arch location (still in /usr/lib in wheezy and precise)
DEB_HOST_MULTIARCH = $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
ifneq ($(wildcard /usr/lib/$(DEB_HOST_MULTIARCH)/tcl$(TCL_VER)),)
TCL_CONFIG_DIR := /usr/lib/$(DEB_HOST_MULTIARCH)
else
TCL_CONFIG_DIR := /usr/lib
endif

export DEB_BUILD_MAINT_OPTIONS = hardening=+all
#PIE# # On jessie/zesty and older, uncomment the #PIE# lines
#PIE# # "-pie" because it would break linking our .so files
#PIE# export DEB_BUILD_MAINT_OPTIONS = hardening=+all,-pie
DPKG_EXPORT_BUILDFLAGS = 1
include /usr/share/dpkg/buildflags.mk
#PIE# # skip -pie on 32bit archs for performance and stability reasons
#PIE# # (http://www.postgresql.org/message-id/20140519115318.GB7296@msgid.df7cb.de, #797530)
#PIE# ifneq ($(shell dpkg-architecture -qDEB_HOST_ARCH_BITS || :),32)
#PIE# CFLAGS+= -fPIC -pie
#PIE# else
#PIE# # if gcc recognizes -no-pie, add it to CFLAGS (exit is 4 for unknown options)
#PIE# CFLAGS+= $(shell gcc -no-pie 2> /dev/null; [ $$? = 1 ] && echo "-no-pie")
#PIE# endif

# Facilitate hierarchical profile generation on amd64 (#730134)
ifeq ($(shell dpkg-architecture -qDEB_HOST_ARCH),amd64)
CFLAGS+= -fno-omit-frame-pointer
endif

export DPKG_GENSYMBOLS_CHECK_LEVEL=4

# PostgreSQL 9.5+ does not have native spinlock support on this platform
ifneq ($(findstring $(DEB_HOST_ARCH), alpha),)
SPINLOCK_FLAGS = --disable-spinlocks
endif

ifeq ($(shell dpkg-architecture -qDEB_HOST_ARCH_OS),linux)
SYSTEMD_FLAGS = --with-systemd
# --with-selinux needs libselinux 2.1.10
# (we don't put that in debian/control so we can use the same source also on older dists)
SEVERSION = $(shell dpkg-query -f '$${Version}' --show libselinux1-dev)
ifeq ($(shell dpkg --compare-versions "$(SEVERSION)" ge 2.1.10 && echo yes),yes)
SELINUX_FLAGS= --with-selinux
endif
endif

COMMON_CONFIGURE_FLAGS= \
  --mandir=/usr/share/postgresql/$(MAJOR_VER)/man \
  --docdir=/usr/share/doc/postgresql-doc-$(MAJOR_VER) \
  --sysconfdir=/etc/postgresql-common \
  --datarootdir=/usr/share/ \
  --datadir=/usr/share/postgresql/$(MAJOR_VER) \
  --bindir=/usr/lib/postgresql/$(MAJOR_VER)/bin \
  --libdir=/usr/lib/$(DEB_HOST_MULTIARCH)/ \
  --libexecdir=/usr/lib/postgresql/ \
  --includedir=/usr/include/postgresql/ \
  --enable-nls \
  --enable-integer-datetimes \
  --enable-thread-safety \
  --enable-tap-tests \
  --enable-debug \
  $(CASSERT_FLAGS) \
  --disable-rpath \
  --with-uuid=e2fs \
  --with-gnu-ld \
  --with-pgport=5432 \
  --with-system-tzdata=/usr/share/zoneinfo \
  $(SYSTEMD_FLAGS) \
  $(SPINLOCK_FLAGS) \
  CFLAGS='$(CFLAGS)' \
  LDFLAGS='$(LDFLAGS)'

# allow missing krb5 and ldap during bootstrapping
ifeq ($(DEB_STAGE),stage1)
BOOTSTRAP_FLAGS=
else
BOOTSTRAP_FLAGS= --with-gssapi --with-ldap \
		 --with-includes=/usr/include/mit-krb5 \
		 --with-libs=/usr/lib/mit-krb5 \
		 --with-libs=/usr/lib/$(DEB_HOST_MULTIARCH)/mit-krb5
endif

# build should fail on test suite failures on all arches
TESTSUITE_FAIL_CMD=exit 1
# hurd doesn't implement semaphores shared between processes yet; succeed anyway so they at least have libpq5
# plperl currently fails on kfreebsd-*
ifneq ($(filter $(DEB_HOST_ARCH), hurd-i386 kfreebsd-amd64 kfreebsd-i386),)
TESTSUITE_FAIL_CMD=exit 0
endif

%:
	dh $@

override_dh_auto_configure-indep: stamp/configure-build
override_dh_auto_configure-arch: stamp/configure-build stamp/configure-build-py3

stamp/configure-build:
	mkdir -p stamp build
	cd build && ../configure \
           --with-icu \
           --with-tcl \
           --with-perl \
           --with-python \
           --with-pam \
           --with-openssl \
           --with-libxml \
           --with-libxslt \
           --with-tclconfig=$(TCL_CONFIG_DIR)/tcl$(TCL_VER) \
           --with-includes=/usr/include/tcl$(TCL_VER) \
           PYTHON=/usr/bin/python \
           $(COMMON_CONFIGURE_FLAGS) \
           $(BOOTSTRAP_FLAGS) \
           $(SELINUX_FLAGS)
	# remove pre-built documentation
	rm -fv doc/src/sgml/*-stamp
	touch "$@"

stamp/configure-build-py3:
	mkdir -p stamp build-py3
	cd build-py3 && ../configure \
           --with-python \
           PYTHON=/usr/bin/python3 \
           $(COMMON_CONFIGURE_FLAGS)
	touch "$@"

override_dh_auto_build-indep:
	$(MAKE) -C build/doc all # build man + html

override_dh_auto_build-arch: stamp/build stamp/build-py3

stamp/build: stamp/configure-build
	$(MAKE) -C build/doc man # build man only
	$(MAKE) -C build/src all
	$(MAKE) -C build/config all
	$(MAKE) -C build/contrib all
	# build tutorial stuff
	$(MAKE) -C build/src/tutorial NO_PGXS=1
	touch "$@"

stamp/build-py3: stamp/configure-build-py3
	$(MAKE) -C build-py3/src/pl/plpython
	$(MAKE) -C build-py3/contrib/hstore_plpython
	touch "$@"

override_dh_auto_install-arch:
	$(MAKE) -C build/doc/src/sgml install-man DESTDIR=$(CURDIR)/debian/tmp
	$(MAKE) -C build/src install DESTDIR=$(CURDIR)/debian/tmp
	$(MAKE) -C build/config install DESTDIR=$(CURDIR)/debian/tmp
	$(MAKE) -C build/contrib install DESTDIR=$(CURDIR)/debian/tmp
	$(MAKE) -C build-py3/src/pl/plpython install DESTDIR=$(CURDIR)/debian/postgresql-plpython3-$(MAJOR_VER)
	$(MAKE) -C build-py3/contrib/hstore_plpython install DESTDIR=$(CURDIR)/debian/postgresql-plpython3-$(MAJOR_VER)
	# remove files duplicated from postgresql and -server-dev
	rm -rf debian/postgresql-plpython3-$(MAJOR_VER)/usr/include
	rm -rf debian/postgresql-plpython3-$(MAJOR_VER)/usr/share/locale
	# remove files from the "wrong" python package
	rm -v debian/postgresql-plpython3-$(MAJOR_VER)/usr/share/postgresql/$(MAJOR_VER)/extension/*plpython[2u]*
	# move SPI examples into server package (they wouldn't be in the doc package in an -A build)
	mkdir -p debian/postgresql-$(MAJOR_VER)/usr/share/doc/postgresql-$(MAJOR_VER)
	mv debian/tmp/usr/share/doc/postgresql-doc-$(MAJOR_VER)/extension debian/postgresql-$(MAJOR_VER)/usr/share/doc/postgresql-$(MAJOR_VER)/examples

override_dh_auto_install-indep:
	$(MAKE) -C build/doc install DESTDIR=$(CURDIR)/debian/tmp

override_dh_makeshlibs:
	dh_makeshlibs -Xusr/lib/postgresql/$(MAJOR_VER)

override_dh_auto_clean:
	rm -rf build* stamp

override_dh_installchangelogs:
	dh_installchangelogs HISTORY

override_dh_compress:
	dh_compress -X.source -X.c
	# compress manpages
	gzip -9n $(CURDIR)/debian/*/usr/share/postgresql/*/man/man*/*.[137]

override_dh_install-arch:
	dh_install --fail-missing

	# link README.Debian.gz to postgresql-common
	mkdir -p debian/postgresql-$(MAJOR_VER)/usr/share/doc/postgresql-$(MAJOR_VER)
	ln -s ../postgresql-common/README.Debian.gz debian/postgresql-$(MAJOR_VER)/usr/share/doc/postgresql-$(MAJOR_VER)/README.Debian.gz

	# these are shipped in the pl packages
	bash -c "rm debian/postgresql-$(MAJOR_VER)/usr/share/postgresql/$(MAJOR_VER)/extension/{plperl,plpython,pltcl,*_pl}*"
	bash -c "rm debian/postgresql-$(MAJOR_VER)/usr/lib/postgresql/$(MAJOR_VER)/lib/{plperl,plpython,pltcl,*_pl}*"

	# record catversion in a file
	echo $(CATVERSION) > debian/postgresql-$(MAJOR_VER)/usr/share/postgresql/$(MAJOR_VER)/catalog_version

override_dh_install-indep:
	dh_install --fail-missing

	if [ -d debian/postgresql-doc-$(MAJOR_VER) ]; then set -e; \
		install -d debian/postgresql-doc-$(MAJOR_VER)/usr/share/doc/postgresql-doc-$(MAJOR_VER)/tutorial; \
		install src/tutorial/*.c src/tutorial/*.source src/tutorial/Makefile src/tutorial/README debian/postgresql-doc-$(MAJOR_VER)/usr/share/doc/postgresql-doc-$(MAJOR_VER)/tutorial; \
	fi

override_dh_auto_test-indep:
	# nothing to do

override_dh_auto_test-arch:
ifeq (, $(findstring nocheck, $(DEB_BUILD_OPTIONS)))
	# when tests fail, print newest 3 log files
	# temp-install wants to be invoked from a top-level make, unset MAKELEVEL here
	unset MAKELEVEL; if ! make -C build check-world EXTRA_REGRESS_OPTS='--port=$(shell perl -le 'print 1024 + int(rand(64000))')'; then \
	    for l in `find build \( -name regression.diffs -o -name initdb.log -o -name postmaster.log \) | perl -we 'print map { "$$_\n"; } sort { (stat $$a)[9] <=> (stat $$b)[9] } map { chomp; $$_; } <>' | tail -3`; do \
		echo "******** $$l ********"; \
		cat $$l; \
	    done; \
	    $(TESTSUITE_FAIL_CMD); \
	fi
endif

override_dh_strip:
	dh_strip --dbg-package=postgresql-$(MAJOR_VER)-dbg

override_dh_installdeb-arch:
	dh_installdeb
	# record catversion in preinst
	sed -i -e 's/@CATVERSION@/$(CATVERSION)/' debian/postgresql-$(MAJOR_VER)/DEBIAN/preinst

override_dh_gencontrol:
	# record catversion in .deb control file
	dh_gencontrol -- -Vpostgresql:Catversion=$(CATVERSION)

override_dh_builddeb:
	dh_builddeb -- -Zxz # explicit xz compression for wheezy and precise