#!/usr/bin/make -f

#uncomment if debhelper should be verbose
#export DH_VERBOSE=1

DEBIAN_VERSION := $(strip $(shell dpkg-parsechangelog| awk '/Version/{print $$2}'))

LIBGPS_SONAME := $(strip $(shell grep -E '^libgps_version_current' SConstruct | sed 's,.*=[^0-9]*\([0-9]*\).*,\1,'))


LIBGPS_DEBIAN_FILE_SOURCES := $(strip $(shell ls -1 debian/*LIBGPSSONAME* ))
LIBGPS_DEBIAN_FILE_TARGETS := $(strip $(shell echo $(LIBGPS_DEBIAN_FILE_SOURCES) | sed 's,LIBGPSSONAME,$(LIBGPS_SONAME),g'))

#python versions
PYTHONS := $(shell pyversions -vr)
PYTHON_DEFAULT := $(strip $(shell pyversions -vd))

#debhelper version and settings needed for udev
DH_VERSION := $(shell dpkg -s debhelper | grep '^Version' | awk '{print $$2}')
LSB_RELEASE := $(shell lsb_release -si)
UDEV_BREAKS =

ifeq (Debian,$(strip $(LSB_RELEASE))) ## debian ##
ifeq (0, $(strip $(shell dpkg --compare-versions $(DH_VERSION) ge 7.3.15; echo $$?)))
UDEV_BREAKS = 125
endif
else ## not debian ##
ifeq (Ubuntu,$(strip $(LSB_RELEASE))) ## ubuntu ##
ifeq (0, $(strip $(shell dpkg --compare-versions $(DH_VERSION) ge 7.0.17ubuntu2; echo $$?)))
UDEV_BREAKS = 136-1
endif
endif ## ubuntu ##
endif ## debian ##


DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)

SCONSOPTS = \
	prefix=/usr \
	systemd=yes \
	nostrip=yes \
	dbus_export=yes \
	docdir=/usr/share/doc/gpsd \
	libdir=/usr/lib/$(DEB_HOST_MULTIARCH) \
	gpsd_user=gpsd \
	gpsd_group=dialout \
	qt_versioned=5


ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
	SCONSOPTS += debug=yes
else
	SCONSOPTS += debug=no
endif

#package names
PACKAGE_GPSD := gpsd
PACKAGE_CLIENTS := gpsd-clients
PACKAGE_LIB := libgps$(LIB_soname)
PACKAGE_QTLIB := libqgpsmm$(LIB_soname)
PACKAGE_LIB_DEV := libgps-dev
PACKAGE_QTLIB_DEV := libqgpsmm-dev
PACKAGE_PY := python-gps
PACKAGE_GPSDDBG := gpsd-dbg


cflags := $(shell dpkg-buildflags --get CFLAGS)
cppflags := $(shell dpkg-buildflags --get CPPFLAGS)
cxxflags := $(shell dpkg-buildflags --get CXXFLAGS)
ldflags := $(shell dpkg-buildflags --get LDFLAGS)

SCONS_ENV := set -e ;\
		export LDFLAGS="$(ldflags)" ;\
		export CFLAGS="$(cflags)" ;\
		export CXXFLAGS="$(cxxflags)" ;\
		export CPPFLAGS="$(cppflags)";


$(LIBGPS_DEBIAN_FILE_TARGETS): $(LIBGPS_DEBIAN_FILE_SOURCES)
	for source in $(LIBGPS_DEBIAN_FILE_SOURCES); do \
	    target=$$(echo "$$source" | sed 's,LIBGPSSONAME,$(LIBGPS_SONAME),g') ;\
	    sed 's,LIBGPSSONAME,$(LIBGPS_SONAME),g' "$$source" > "$$target" ;\
	done

debian/control: debian/control.in
		rm -f $@ 
		sed 's,LIBGPSSONAME,$(LIBGPS_SONAME),g' $< > $@ 
		if [ -d .git ]; then \
			git add debian/control ;\
			git commit -m 'Updating debian/control from debian/control.in' debian/control ;\
		fi ;\

SConstruct.deb_revision: SConstruct
	if [ ! -f $@ ]; then \
		cp $< $@ ;\
		sed -i '/^revision=/s/%(.*)/%("$(DEBIAN_VERSION)",)/' $< ;\
	fi
	touch $@

build-indep: build
build-arch: build

build: build-stamp build-static-stamp
build-stamp: SConstruct.deb_revision
	set -e; \
	    for py in $(PYTHONS); do \
	    	$(SCONS_ENV) python$${py} /usr/bin/scons $(SCONSOPTS); \
	    done
ifeq (,$(findstring nocheck,$(DEB_BUILD_OPTIONS)))
	# disable tests on hurd due to weird ipv6 errors
	# http://deb.li/4C46AEAC.7040906@bzed.de
ifeq (,$(findstring hurd,$(DEB_HOST_ARCH_OS)))
	-$(SCONS_ENV) /usr/bin/scons check
endif
endif
	# ensure the test tools are built
	$(SCONS_ENV) python /usr/bin/scons $(SCONSOPTS) $(shell grep test_ debian/gpsd-dbg.install | grep -v '\.py' | awk '{print $$1}')
	touch $@

build-static-stamp: SConstruct.deb_revision
	cp libgps_static.a libgps.a
	touch $@

clean: debian/control
	dh_testdir
	dh_testroot
	set -e; \
	    for py in $(PYTHONS); do \
	    	$(SCONS_ENV) python$${py} /usr/bin/scons $(SCONSOPTS) --clean ; \
	    done
	$(SCONS_ENV) python /usr/bin/scons $(SCONSOPTS) sconsclean || true
	# revert revision changes in SConstruct
	if [ -f SConstruct.deb_revision ]; then \
	    mv SConstruct.deb_revision SConstruct; \
	fi
	rm -rf \
	    .sconf_temp \
	    .scons-option-cache \
	    .sconsign.dblite \
	    gps/*.pyc \
	    TROUBLESHOOTING \
	    debian/buildinfo.gz \
	    config.log \
	    debian/shlibs.local \
	    leapsecond.pyc \
	    libgps.a \
	    $(LIBGPS_DEBIAN_FILE_TARGETS)
	dh_clean

install: install-stamp
install-stamp: build-stamp build-static-stamp $(LIBGPS_DEBIAN_FILE_TARGETS)
	dh_testdir
	dh_testroot
	dh_prep
	set -e ;\
	    for py in $(PYTHONS); do \
	    	$(SCONS_ENV) DESTDIR=`pwd`/debian/tmp python$${py} /usr/bin/scons install $(SCONSOPTS) ;\
	    done
	# install static lib
	cp libgps.a debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)
	cp INSTALL TROUBLESHOOTING
	# install systemd files
	mkdir -p debian/tmp/lib/systemd/system
	cp systemd/* debian/tmp/lib/systemd/system
	# fix various manpages
	for i in cgps.1 gegps.1 lcdgps.1 xgps.1 xgpsspeed.1 gpxlogger.1; do \
	    rm -f debian/tmp/usr/share/man/man1/$$i ;\
	    ln -s gps.1 debian/tmp/usr/share/man/man1/$$i ;\
	done
	rm -f debian/tmp/usr/share/man/man3/libQgpsmm.3
	ln -s libgpsmm.3.gz debian/tmp/usr/share/man/man3/libQgpsmm.3.gz
	# install everything
	dh_install --fail-missing
	# remove rpaths
	find debian -type f -exec file {} \; |\
	    grep ELF |\
	    grep 'dynamically linked' |\
	    sed 's,:.*,,' |\
	    xargs chrpath -d
	touch $@


install-indep: install
install-arch: install

binary: install-stamp
	dh_testdir
	dh_testroot
	dh_installchangelogs  NEWS
	dh_installdocs 
	dh_installman 
	dh_installmenu 
	dh_installsystemd -pgpsd --restart-after-upgrade gpsdctl@.service gpsd.socket
	dh_installsystemd -pgpsd --no-enable --no-start gpsd.service
	dh_installinit
	dh_systemd_start -pgpsd --restart-after-upgrade
	dh_installexamples 
	chmod 755 debian/$(PACKAGE_PY)/usr/lib/python*/*-packages/gps/gps.py
	dh_python2 -Ngpsd -Ngpsd-clients -Ngpsd-dbg
	dh_python2 -pgpsd-dbg usr/lib/gpsd/debug
	dh_python2 -pgpsd-clients usr/bin
	dh_python2 -pgpsd lib/udev/
	cp $(CURDIR)/gpsd.rules $(CURDIR)/debian/gpsd.udev
	dh_installudev 
	dh_link 
	dh_strip --dbgsym-migration='gpsd-dbg (<< 3.16-4~)'
	dh_buildinfo -p$(PACKAGE_GPSDDBG)
	dh_compress 
	dh_fixperms  -Xgpsd.hotplug
	dh_lintian
ifeq (,$(DEB_BUILD_OPTIONS))
	dh_makeshlibs -Nlibqgpsmm$(LIBGPS_SONAME) -- -c4
	dh_makeshlibs -plibqgpsmm$(LIBGPS_SONAME) -- -c1
else
	dh_makeshlibs
endif
	dh_shlibdeps 
ifneq (,$(UDEV_BREAKS))
	echo "gpsd:Breaks=udev (<< $(UDEV_BREAKS))" >> $(CURDIR)/debian/gpsd.substvars
endif
	dh_gencontrol 
	dh_installdeb 
	dh_md5sums 
	dh_builddeb 


binary-indep: binary
binary-arch: binary

.PHONY: binary binary-indep binary-arch \
	install install-arch install-indep \
	clean \
	build debian/control