#!/usr/bin/make -f

BUILD_HOME=$(CURDIR)/debian/home
BUILD_XDG_RUNTIME_DIR=$(CURDIR)/debian/run

include /usr/share/dpkg/default.mk
include debian/opts.mk

# Needed for ccache to work in case the build directory changed
# (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=810871)
export CCACHE_BASEDIR = $(shell pwd)

export DPKG_GENSYMBOLS_CHECK_LEVEL = 4

# see FEATURE AREAS in dpkg-buildflags(1)
export DEB_BUILD_MAINT_OPTIONS = hardening=+all
include /usr/share/dpkg/buildflags.mk

%:
	dh $@ -Bbuild-$(DEB_HOST_ARCH) --with pkgkde_symbolshelper

# Enable verbose debugging output from the testsuite
export MIR_SERVER_LOGGING = on
override_dh_auto_test-arch:
ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
ifeq ($(filter mipsel riscv64,$(DEB_HOST_ARCH)),)
ifeq ($(DEB_HOST_ARCH_ENDIAN),little)
	mkdir -p $(BUILD_HOME)
	mkdir -p $(BUILD_XDG_RUNTIME_DIR)
	export HOME="$(BUILD_HOME)" && export XDG_RUNTIME_DIR="$(BUILD_XDG_RUNTIME_DIR)" && GTEST_OUTPUT=xml:./ dh_auto_build -- ARGS="-V" ptest || true
else
	echo "Testsuite disabled on $(DEB_HOST_ARCH) due to lack of big-endian support."
endif
else
	echo "Testsuite disabled on $(DEB_HOST_ARCH) due to timeouts / slow CPU processing."
endif
else
	echo "Testsuite disabled due to DEB_BUILD_OPTIONS=\"$(DEB_BUILD_OPTIONS)\""
endif

override_dh_auto_test-indep:
	echo "Testsuite not run during arch:all builds."

COMMON_CONFIGURE_OPTIONS = \
  -DCMAKE_INSTALL_LIBEXECDIR="lib/$(DEB_HOST_MULTIARCH)/mir"\
  -DMIR_BUILD_INTERPROCESS_TESTS=OFF\
  -DMIR_FATAL_COMPILE_WARNINGS=OFF\

ifeq ($(filter ppc64el,$(DEB_HOST_ARCH)),ppc64el)
	# Disable spurious error on GCC>=12
	ifneq ($(shell gcc --version | grep '1[234].[[:digit:]]\+.[[:digit:]]\+$$'),)
		COMMON_CONFIGURE_OPTIONS += -DMIR_COMPILER_QUIRKS="libinput_environment.cpp:restrict"
	endif
	ifneq ($(shell gcc --version | grep '1[234].[[:digit:]]\+.[[:digit:]]\+$$'),)
		COMMON_CONFIGURE_OPTIONS += -DMIR_COMPILER_QUIRKS="test_touchspot_controller.cpp:array-bounds"
	endif
endif
ifeq ($(filter riscv64,$(DEB_HOST_ARCH)),riscv64)
	# Disable spurious error on GCC>=12
	ifneq ($(shell gcc --version | grep] '1[234].[[:digit:]]\+.[[:digit:]]\+$$'),)
		COMMON_CONFIGURE_OPTIONS += -DMIR_COMPILER_QUIRKS="test_linearising_executor.cpp:use-after-free"
	endif
endif

# Disable LTO on broken binutils
# https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/2070302
ifneq ($(shell ld --version | grep '2.43.1$$'),)
	DEB_BUILD_MAINT_OPTIONS += optimize=-lto
endif

# We can't guarantee non-Ubuntu builds will build against WLCS packages we
# control, so disable it on non-Ubuntu builds
#ifeq ($(filter Ubuntu,$(DEB_VENDOR)),)
	COMMON_CONFIGURE_OPTIONS += -DMIR_RUN_WLCS_TESTS=OFF
#endif

# see, if this prevents from build failures on some exotic architectures (like e.g. mips64el):
COMMON_CONFIGURE_OPTIONS += -DMIR_USE_LD=ld

ifneq (,$(filter noinsttest,$(DEB_BUILD_PROFILES)))
	COMMON_CONFIGURE_OPTIONS += -DMIR_ENABLE_TESTS=OFF
endif

ifneq (,$(filter cross,$(DEB_BUILD_PROFILES)))
        COMMON_CONFIGURE_OPTIONS += -DMIR_WAYLAND_GENERATOR_EXECUTABLE=/usr/bin/mir_wayland_generator
endif

# Disable pre-compiled headers on GCC>=12
ifneq ($(shell gcc --version | grep '1[234].[[:digit:]]\+.[[:digit:]]\+$$'),)
  COMMON_CONFIGURE_OPTIONS += -DMIR_USE_PRECOMPILED_HEADERS=OFF
endif

export DEB_BUILD_MAINT_OPTIONS

$(info COMMON_CONFIGURE_OPTIONS: ${COMMON_CONFIGURE_OPTIONS})
$(info DEB_BUILD_MAINT_OPTIONS: ${DEB_BUILD_MAINT_OPTIONS})

ifneq ($(filter amd64 i386,$(DEB_HOST_ARCH)),)
	AVAILABLE_PLATFORMS=gbm-kms\;x11\;wayland\;eglstream-kms
else
	AVAILABLE_PLATFORMS=gbm-kms\;x11\;wayland
endif

override_dh_auto_configure:
ifneq ($(filter armhf,$(DEB_HOST_ARCH)),)
	dh_auto_configure -- \
	  $(COMMON_CONFIGURE_OPTIONS) \
	  -DMIR_RUN_ACCEPTANCE_TESTS=OFF \
	  -DMIR_RUN_INTEGRATION_TESTS=OFF \
	  -DMIR_PLATFORM=$(AVAILABLE_PLATFORMS) \
	  $(OVERRIDE_CONFIGURE_OPTIONS)
else
ifneq ($(filter arm64,$(DEB_HOST_ARCH)),)
	dh_auto_configure -- \
	  $(COMMON_CONFIGURE_OPTIONS) \
	  -DMIR_RUN_ACCEPTANCE_TESTS=OFF \
	  -DMIR_PLATFORM=$(AVAILABLE_PLATFORMS) \
	  $(OVERRIDE_CONFIGURE_OPTIONS)
else
	dh_auto_configure -- \
	  $(COMMON_CONFIGURE_OPTIONS) \
	  -DMIR_PLATFORM=$(AVAILABLE_PLATFORMS) \
	  $(OVERRIDE_CONFIGURE_OPTIONS)
endif
endif
	# Run cmake again to pick up wlcs tests, because reasons?
	cmake build-$(DEB_HOST_ARCH)

# binary-only builds still need the doc files, otherwise the
# install target fails
override_dh_auto_build-arch: override_dh_auto_build-indep
	dh_auto_build

# Only build the docs when we need them
override_dh_auto_build-indep:
	dh_auto_build -- doc

override_dh_auto_install-indep:
	dh_auto_build -- DESTDIR=$(CURDIR)/debian/tmp doc-install
	cd debian/tmp/usr/share/doc/mir-doc/html/ && rdfind -makesymlinks true .
	cd debian/tmp/usr/share/doc/mir-doc/html/ && symlinks -rc .

# Reconstruct the MirAL version
MIRAL_VERSION_MAJOR = $(shell perl -n -e '/^set\(MIRAL_VERSION_MAJOR ([0-9]*)\)$$/ && print $$1' src/CMakeLists.txt)
MIRAL_VERSION_MINOR = $(shell perl -n -e '/^set\(MIRAL_VERSION_MINOR ([0-9]*)\)$$/ && print $$1' src/CMakeLists.txt)
MIRAL_VERSION_PATCH = $(shell perl -n -e '/^set\(MIRAL_VERSION_PATCH ([0-9]*)\)$$/ && print $$1' src/CMakeLists.txt)
MIRAL_RELEASE=$(MIRAL_VERSION_MAJOR).$(MIRAL_VERSION_MINOR).$(MIRAL_VERSION_PATCH)
MIRAL_VERSION=$(MIRAL_RELEASE).$(DEB_VERSION)

# TODO: we'll use a symbol file once mir is abi stable
override_dh_makeshlibs:
	dh_makeshlibs -Nlibmiral5t64 -V -Nmir-test-tools
	# libmiral5 *has* a symbols file, so we don't need to -V it!
	dh_makeshlibs -plibmiral5t64 -- -v$(MIRAL_RELEASE)

override_dh_missing:
	dh_missing --fail-missing

# Don't try to strip libraries used as test data
override_dh_strip:
	dh_strip -Xmir-test-data

# Don't try to find dependencies of libraries used as test data
override_dh_shlibdeps:
	dh_shlibdeps -Xmir-test-data

override_dh_gencontrol:
	dh_gencontrol -Nlibmiral5t64 -Nlibmiral-dev
	dh_gencontrol -plibmiral5t64 -plibmiral-dev -- -v$(MIRAL_VERSION) -V'libmiral5t64:Version=$(MIRAL_VERSION)'

override_dh_clean:
	dh_clean
	rm -Rfv $(BUILD_HOME)
	rm -Rfv $(BUILD_XDG_RUNTIME_DIR)

get-orig-source:
	uscan --noconf --force-download --rename --download-current-version --destdir=..