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

# Uncomment this to turn on verbose mode.
#export DH_VERBOSE=1
DH_VERSION = 2

# REMEMBER: arch-indep packaes are: gstep-base-examples

PWD	:= $(shell pwd)
ARCH	= $(shell dpkg --print-gnu-build-architecture)
CC	= gcc
v_src	:= $(shell dpkg-parsechangelog | awk '/^Version:/ {print $$2}')

# build debug packages?
debug	= yes
# the default backend
backend	= xgps

GS			= usr/lib/GNUstep
GNUSTEP_SYSTEM_ROOT	= /$(GS)

gnustep_vars	:= $(shell . $(GNUSTEP_SYSTEM_ROOT)/Makefiles/GNUstep.sh; \
			echo $$LIBRARY_COMBO $$GNUSTEP_HOST_CPU \
				$$GNUSTEP_HOST_OS $$GNUSTEP_HOST_VENDOR)
LIBRARY_COMBO	= $(word 1, $(gnustep_vars))
GS_COMBO	= $(LIBRARY_COMBO)
GS_CPU		:= $(word 2, $(gnustep_vars))
GS_OS		:= $(word 3, $(gnustep_vars))
GS_VENDOR	:= $(word 4, $(gnustep_vars))
lib_dir		= $(GS_CPU)/$(GS_OS)
combo_dir	= $(GS_CPU)/$(GS_OS)/$(GS_COMBO)
export GNUSTEP_SYSTEM_ROOT

v_ext	:= $(shell . ./Version; echo $$VERSION)
v_base	:= 0.6.5-3
sov_ext	:= $(shell echo $(v_ext)  | awk -F. '{print $$1}')

p_ext		= gstep-extensions0
p_ext_dev	= gstep-extensions-dev
p_ext_dbg	= gstep-extensions-dbg

d		= debian/tmp
d_ext		= $(d)
d_ext_dev	= debian/$(p_ext_dev)
d_ext_dbg	= debian/$(p_ext_dbg)

default: build

ctrl_flags = -D_BASE_VER_=$(v_base)
ifeq ($(debug),yes)
  ctrl_flags += -DDEBUG
endif
debian/control: debian/control.in
	cpp -A- -P $(ctrl_flags) debian/control.in \
	  | awk '/^ *$$/ && x !~ /^ / {next} /NEWLINE/ {print ""; next} {print; x=$$0}' \
	  | sed -e '/^[^ ]/s/  */ /g' -e 's/  *\([,)]\)/\1/g' -e 's/ *$$//' \
	  > debian/control

config: config.status
config.status: debian/control
	dh_testdir
	rm -f config.cache
	. $(GNUSTEP_SYSTEM_ROOT)/Makefiles/GNUstep.sh; \
	  CC=$(CC) LIBS=-lpthread \
	  ./configure --prefix=$(GNUSTEP_SYSTEM_ROOT)

build: debian/control \
    patched-stamp build-stamp build-static-stamp build-debug-stamp

build-stamp: config.status
	dh_testdir
	. $(GNUSTEP_SYSTEM_ROOT)/Makefiles/GNUstep.sh; \
	    $(MAKE)
	touch build-stamp

build-debug-stamp: config.status
ifeq ($(debug),yes)
	. $(GNUSTEP_SYSTEM_ROOT)/Makefiles/GNUstep.sh; \
	    $(MAKE) -C extensions debug=yes
endif
	touch build-debug-stamp

build-static-stamp: config.status
	. $(GNUSTEP_SYSTEM_ROOT)/Makefiles/GNUstep.sh; \
	    $(MAKE) -C extensions shared=no
	touch build-static-stamp

clean: debian/control
	dh_testdir
	dh_testroot
	rm -f build-*stamp install-stamp first-move-stamp

	: # removing all build directories ...
	-find $(sub_projects) -type d \
	  \( -name 'shared*_obj' -o -name 'static*_obj' -o -name '*.app' \) \
	  | xargs rm -rf
	rm -f `find -name 'lib*.so*' -type l` || true
# this is terribly slow ...
#	-$(MAKE) distclean $(MAKEDFLAGS)
	-find \( -name config.cache -o -name config.log -o -name config.mak \
	    -o -name config.status -o -name config.make \
	    -o -name GNUmakefile.local \
	  \) | xargs rm -f
	-find  \( -name $(GS_CPU) -type d \) | xargs rm -rf

	rm -f extensions/{config.h,objc/NXStringTable_scan.c,NSException.h}

	$(MAKE) -f debian/rules reverse-patches
	dh_clean

dirs_ext	= \
	usr/share/doc/$(p_ext) \
	usr/share/doc/GNUstep \
	$(GS)/Headers \
	$(GS)/Libraries/$(combo_dir)
files_ext	= \
	$(GS)/Libraries/$(combo_dir)/libFoundationExt*.so.* \
	$(GS)/Libraries/Resources/gnustep/{NSCharacterSets,NSTimeZones} \
	$(GS)/Tools/$(lib_dir)/gdomap \
	$(GS)/Tools/$(combo_dir)/{defaults,dread,dwrite,dremove,gdnc}

dirs_ext_dbg	= \
	usr/share/doc \
	$(GS)/Libraries/$(combo_dir)
files_ext_dbg	= \
	$(GS)/Libraries/$(combo_dir)/libFoundationExt_d.so*

dirs_ext_dev	= \
	usr/share/doc \
	$(GS)/Headers \
	$(GS)/Libraries/$(combo_dir)
files_ext_dev	= \
	$(GS)/Headers \
	$(GS)/Libraries/$(combo_dir)/libFoundationExt*.{a,so}


install: install-stamp first-move-stamp
install-stamp: build-stamp
	dh_testversion $(DH_VERSION)
	dh_testdir
	dh_testroot
	rm -f first-move-stamp
	dh_clean -k
	dh_installdirs -p$(p_ext) $(dirs_ext)
	dh_installdirs -p$(p_ext_dev) $(dirs_ext_dev)
ifeq ($(debug),yes)
	dh_installdirs -p$(p_ext_dbg) $(dirs_ext_dbg)
endif

	: # install dynamic versions
	. $(GNUSTEP_SYSTEM_ROOT)/Makefiles/GNUstep.sh; \
	    $(MAKE) install GNUSTEP_INSTALLATION_DIR=$(PWD)/$(d)/$(GS)
	: # install static versions of libraries
	. $(GNUSTEP_SYSTEM_ROOT)/Makefiles/GNUstep.sh; \
	    $(MAKE) -C extensions install shared=no \
		GNUSTEP_INSTALLATION_DIR=$(PWD)/$(d)/$(GS)
ifeq ($(debug),yes)
	: # install debug versions of libraries
	cp -a extensions/shared_debug_obj/$(combo_dir)/libFoundationExt_d.so* \
		$(d_ext)/$(GS)/Libraries/$(combo_dir)/
endif
	touch install-stamp

first-move-stamp:
	dh_testversion $(DH_VERSION)
	dh_testdir
	dh_testroot
	rm -f install-stamp

	: # gstep-extensions
ifeq ($(debug),yes)
	dh_movefiles -p$(p_ext_dbg) --sourcedir=$(d_ext) $(files_ext_dbg)
endif
	dh_movefiles -p$(p_ext_dev) --sourcedir=$(d_ext) $(files_ext_dev)
	: # remove empty directories, when all components are in place
	for d in `find debian -depth -type d -empty 2> /dev/null`; do \
	  case $$d in */usr/share/doc*|*/etc) continue; esac; \
	  while rmdir $$d 2> /dev/null; do d=`dirname $$d`; done; \
	done
	touch first-move-stamp

# Build architecture-independent files here.
binary-indep: build install
	: # no binary-indep packages
	true

# Build architecture-dependent files here.
binary-arch: build install
	dh_testversion $(DH_VERSION)
	dh_testdir -a
	dh_testroot -a
	dh_installdocs -p$(p_ext) NEWS README Version
	ln -sf ../$(p_ext) $(d_ext)/usr/share/doc/GNUstep/$(p_ext)
	ln -sf $(p_ext) $(d_ext_dev)/usr/share/doc/$(p_ext_dev)
ifeq ($(debug),yes)
	ln -sf $(p_ext_dev) $(d_ext_dbg)/usr/share/doc/$(p_ext_dbg)
endif
#	dh_installexamples -a
#	dh_installmenu -a
#	dh_installemacsen -a
#	dh_installcron -a
#	dh_installmanpages -a

# move the upstream changelogs in the dev packages?
	dh_installchangelogs -p$(p_ext) ChangeLog
	dh_strip -a -X_d.so -X_d.a
	dh_compress -a
	dh_fixperms -a
#	dh_suidregister -a
#	dh_makeshlibs -a

	: # generate shlibs files
	echo 'libFoundationExt $(sov_ext) $(p_ext) (>= $(v_src))' \
		> debian/$(p_ext).shlibs
ifeq ($(debug),yes)
	echo 'libFoundationExt_d $(sov_ext) $(p_ext_dbg) (>= $(v_src))' \
		> debian/$(p_ext_dbg).shlibs
endif

	awk '{print $$1, $$2}' debian/*.shlibs > debian/shlibs.local
	dh_shlibdeps -a
	dh_installdeb -a
	dh_gencontrol -a
	dh_md5sums -a
	dh_builddeb -a

source diff:
	@echo >&2 'source and diff are obsolete - use dpkg-source -b'; false

binary: binary-indep binary-arch
.PHONY: build clean binary-indep binary-arch binary

patch_dir = debian/patches
debian_patches =

apply-patches: patched-stamp
reverse-patches:
	for stamp in none `ls -1t patched-*`; do \
	  case "$$stamp" in none|patched-stamp) continue; esac; \
	  patch=`echo $$stamp | sed -e 's/patched-//'`; \
	  echo "trying to revert patch $$patch ..."; \
	  if [ -x $(patch_dir)/$$patch.dpatch ]; then true; else \
	    chmod +x $(patch_dir)/$$patch.dpatch; fi; \
	  if $(patch_dir)/$$patch.dpatch -unpatch; then \
	    echo "reverted $$patch patch."; \
	    rm -f $$stamp; \
	  else \
	    echo "error in reverting $$patch patch."; \
	    exit 1; \
	  fi; \
	done
	rm -f patched-stamp

patched-%: $(patch_dir)/%.dpatch
	if [ -x $< ]; then true; else chmod +x $<; fi
	$< -patch
	echo "$* patches applied." > $@

patched-stamp: $(foreach p,$(debian_patches),patched-$(p))
	echo -e "Patches applied in the Debian version of GNUstep:" > pxxx
	for i in $(debian_patches) none; do \
	  case "$$i" in none) continue; esac; \
	  echo -e "\n$$i:" >> pxxx; \
	  sed -n 's/^# *DP: */  /p' debian/patches/$$i.dpatch >> pxxx; \
	done
	mv -f pxxx patched-stamp