#!/usr/bin/make -f

#export DH_VERBOSE=1
export NV_VERBOSE=1

# see FEATURE AREAS in dpkg-buildflags(1)
export DEB_BUILD_MAINT_OPTIONS = hardening=+all

include /usr/share/dpkg/buildflags.mk

# Redefine DATE to something stable to make the build reproducible
BUILDDATE		:= $(shell dpkg-parsechangelog -S Date)
export DATE		 = date -d "$(BUILDDATE)"
# Cheat for user and hostname
export WHOAMI		 = echo buildd
export HOSTNAME_CMD	 = echo debian

export PREFIX		 = /usr
export DO_STRIP		 =
export STRIP_CMD	 = true
export CC_ONLY_CFLAGS	 = $(CPPFLAGS)

ifneq (,$(filter noopt,$(DEB_BUILD_OPTIONS)))
export DEBUG		 = 1
endif

export NV_USE_BUNDLED_LIBJANSSON = 0

include debian/rules.defs
NVIDIA_LEGACY		?=
NVIDIA_ALTERNATIVE	?= nvidia$(legacy)-alternative
legacy			 = $(if $(NVIDIA_LEGACY),-legacy-$(NVIDIA_LEGACY)xx)
legacy_description	 = $(if $(NVIDIA_LEGACY), ($(NVIDIA_LEGACY)xx legacy version))
nvidia_private		 = nvidia$(if $(legacy),/$(patsubst -%,%,$(legacy)),/current)
watch_version		?= $(NVIDIA_LEGACY)

ALL_CONTROL	:= $(wildcard debian/nvidia-settings.*)
LEGACY_CONTROL	:= $(wildcard debian/nvidia-settings$(legacy).*)
RENAME_CONTROL	 = $(filter-out $(LEGACY_CONTROL),$(ALL_CONTROL))
RENAMED_CONTROL	 = $(patsubst debian/nvidia-settings.%,debian/nvidia-settings$(legacy).%,$(RENAME_CONTROL))
TEMPLATES	:= $(wildcard debian/*.in)
AUTOGEN		+= $(patsubst %.in,%,$(TEMPLATES))
AUTOGEN		+= $(patsubst %.in,%,$(RENAMED_CONTROL))
AUTOKEEP	 = debian/watch
AUTOCLEAN	 = $(filter-out $(AUTOKEEP),$(AUTOGEN))


%:
	dh $@

override_dh_auto_build: $(AUTOGEN)
	$(RM) src/libXNVCtrl/libXNVCtrl.a
	CC_ONLY_CFLAGS="$(CPPFLAGS)" dh_auto_build -O--parallel
	$(MAKE) -C samples

override_dh_auto_install:
	dh_auto_install --destdir=debian/tmp
	install -m 0755 $(wildcard samples/_out/*/nv-control-dpy samples/nv-control-dpy) debian/tmp/usr/bin/
	install -m 0644 $(or $(wildcard doc/nvidia-settings.png),debian/nvidia-settings.png) debian/tmp/nvidia-settings$(legacy).png

override_dh_auto_clean:
	dh_auto_clean
	$(RM) src/libXNVCtrl/libXNVCtrl.a
	[ ! -f src/XF86Config-parser/Makefile ] || $(MAKE) -C src/XF86Config-parser clean
	[ ! -f samples/Makefile ] || $(MAKE) -C samples clean
	$(RM) -r _out */_out
	$(RM) $(AUTOCLEAN)
	$(MAKE) -f debian/rules $(AUTOKEEP)

override_dh_compress:
	dh_compress --exclude=.c --exclude=.mk

override_dh_gencontrol:
	dh_gencontrol -- -V'nvidia:Legacy=$(legacy)' \
		-V'nvidia:LegacyDesc=$(legacy_description)' \
		-V'nvidia-alternative=$(NVIDIA_ALTERNATIVE)'


# Generating control files
debian/%:: debian/%.in debian/rules debian/rules.defs
	perl -p \
		-e 's{#LEGACY#}{$(legacy)}g;' \
		-e 's{#LEGACY_DESC#}{$(legacy_description)}g;' \
		-e 's{#PRIVATE#}{$(nvidia_private)}g;' \
		-e 's{#WATCH_VERSION#}{$(watch_version)}g;' \
		< $< > $@

# Renaming control files for legacy packaging
ifneq (,$(legacy))
nvidia-settings$(legacy).%: nvidia-settings.%
	cp -a $< $@
endif
