#!/usr/bin/make -f

include /usr/share/dpkg/architecture.mk

export DEB_BUILD_MAINT_OPTIONS = hardening=+all

# LLVM 6.0 headers produce lots of class-memaccess warnings
export DEB_CXXFLAGS_MAINT_APPEND = -Wno-class-memaccess

archs_that_need_atomic = armel
ifeq ($(DEB_HOST_ARCH),$(findstring $(DEB_HOST_ARCH), $(archs_that_need_atomic)))
export DEB_LDFLAGS_MAINT_APPEND = -Wl,--no-as-needed -latomic -Wl,--as-needed
endif

# on armel & armhf there are OpenGL ES headers
ifeq ($(DEB_HOST_ARCH),$(findstring $(DEB_HOST_ARCH), armel armhf))
RUN_TESTS_ARGS += --exclude qt6-header-fixes
endif

# keep the "++" at the end, to make sure the tool used is the C++ frontend
CLANGPP=$(shell realpath $$(env PATH=$$(echo "$$PATH" | sed -r -e 's|/usr/lib/ccache/?:||') which clang++))++
CLANG_APPLY_REPLACEMENTS=$(shell realpath $$(which clang-apply-replacements))

DPKG_ARCHITECTURE = $(shell dpkg --print-architecture)

%:
	dh $@

override_dh_auto_configure:
	dh_auto_configure -- -DCLANGPP_EXECUTABLE="$(CLANGPP)"

override_dh_auto_install:
	dh_auto_install --destdir=debian/clazy
	# drop RPATH pointing to the private libdir of LLVM libraries,
	# i.e. /usr/lib/llvm-$VERSION/lib
	chrpath -d $(CURDIR)/debian/clazy/usr/bin/clazy-standalone $(CURDIR)/debian/clazy/usr/lib/*/*.so
	# drop extra license file
	rm $(CURDIR)/debian/clazy/usr/share/doc/clazy/COPYING-LGPL2.txt
	# create a local shell environment file with the various paths
	:> $(CURDIR)/debian/debian.sh
	echo 'export CLANG="$(CLANGPP)"' >> $(CURDIR)/debian/debian.sh
	echo 'export CLANG_APPLY_REPLACEMENTS="$(CLANG_APPLY_REPLACEMENTS)"' >> $(CURDIR)/debian/debian.sh
	mkdir -p $(CURDIR)/debian/clazy-tests/usr/share/clazy
	mv $(CURDIR)/debian/debian.sh $(CURDIR)/debian/clazy-tests/usr/share/clazy/debian-$(DPKG_ARCHITECTURE).sh

override_dh_auto_test:
ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
	chmod +x $(CURDIR)/obj-$(DEB_HOST_GNU_TYPE)/clazy
	cd tests && env PATH=$(CURDIR)/obj-$(DEB_HOST_GNU_TYPE):$(CURDIR)/obj-$(DEB_HOST_GNU_TYPE)/bin:$(PATH) LD_LIBRARY_PATH=$(CURDIR)/obj-$(DEB_HOST_GNU_TYPE)/lib DEB_HOST_ARCH=$(DEB_HOST_ARCH) CCACHE_DISABLE=1 ./run_tests.py --verbose $(RUN_TESTS_ARGS)
endif

override_dh_compress:
	# do not compress documentation markdown & JSON files
	dh_compress -X.md -X.json

override_dh_gencontrol:
	dh_gencontrol -- \
	  -V'clazy:clang=$(shell dpkg -S "$(CLANGPP)" | cut -d: -f1)' \
	  -V'clazy:clang-tools=$(shell dpkg -S "$(CLANG_APPLY_REPLACEMENTS)" | cut -d: -f1)'