#!/usr/bin/make -f

include /usr/share/dpkg/pkg-info.mk

# Ensure the build aborts when there are still references to undefined symbols
export DEB_LDFLAGS_MAINT_APPEND = -Wl,-z,defs

# Make the linker work a bit harder so dynamic loading can be done faster
DEB_LDFLAGS_MAINT_APPEND += -Wl,-O1

# https://bugs.debian.org/1077289
ifeq (i386,$(DEB_HOST_ARCH_CPU))
export DEB_CFLAGS_MAINT_APPEND = -ffloat-store
endif

include /usr/share/dpkg/default.mk

dh_options =
built_binaries := $(shell dh_listpackages)
all_binaries := $(shell sed -ne 's/^Package: *//p' < debian/control)

export APIVER := 4
export SONAME := 1

export LIBDIR := usr/lib/$(DEB_HOST_MULTIARCH)

# earliest version that this release has backwards binary compatibility for
export GTK_BINARY_VERSION := 4.0.0

# relative base directory for configuration
export CONFDIR := etc/gtk-4.0

# relative base directory for all types of modules
export MODULES_BASE_PATH := $(LIBDIR)/gtk-4.0/$(GTK_BINARY_VERSION)

# package names
export SHARED_PKG := libgtk-$(APIVER)-$(SONAME)
export COMMON_PKG := libgtk-$(APIVER)-common
export DEV_PKG := libgtk-$(APIVER)-dev
export UDEB_PKG := $(SHARED_PKG)-udeb
export DOC_PKG := libgtk-$(APIVER)-doc
export BIN_PKG := libgtk-$(APIVER)-bin
export MEDIA_GSTREAMER_PKG := libgtk-$(APIVER)-media-gstreamer
export EXAMPLES_PKG := gtk-$(APIVER)-examples
export TESTS_PKG := gtk-$(APIVER)-tests

# files larger than 4k in size will be compressed by dh_compress
# so append a .gz suffix to avoid dangling symlinks
export README_MD_MAYBE_GZ := README.md$(shell find -maxdepth 1 -size +4k -name README.md -exec echo ".gz" \;)

# macro computing the list of 'debian/<pkg>.*" files which have a
# corresponding ".in" file; pass the list of packages in $(1)
dh_subst_files = $(patsubst %.in,%,$(wildcard $(addprefix debian/, $(addsuffix *.in, $(1)))))

debian/%: debian/%.in
	dh_testdir
	sed \
		-e "s#@SONAME@#$(SONAME)#g" \
		-e "s#@APIVER@#$(APIVER)#g" \
		-e "s#@SHARED_PKG@#$(SHARED_PKG)#g" \
		-e "s#@COMMON_PKG@#$(COMMON_PKG)#g" \
		-e "s#@DEV_PKG@#$(DEV_PKG)#g" \
		-e "s#@UDEB_PKG@#$(UDEB_PKG)#g" \
		-e "s#@DOC_PKG@#$(DOC_PKG)#g" \
		-e "s#@BIN_PKG@#$(BIN_PKG)#g" \
		-e "s#@MEDIA_GSTREAMER_PKG@#$(MEDIA_GSTREAMER_PKG)#g" \
		-e "s#@EXAMPLES_PKG@#$(EXAMPLES_PKG)#g" \
		-e "s#@TESTS_PKG@#$(TESTS_PKG)#g" \
		-e "s#@LIBDIR@#$(LIBDIR)#g" \
		-e "s#@MODULES_BASE_PATH@#$(MODULES_BASE_PATH)#g" \
		-e "s#@DEB_VERSION_UPSTREAM@#$(DEB_VERSION_UPSTREAM)#g" \
		$@.in > $@

configure_flags_deb = \
	-Dauto_features=enabled \
	-Dbroadway-backend=true \
	-Dx11-backend=true \
	${NULL}
local_recommends =

ifeq ($(call dpkg_vendor_derives_from_v1,ubuntu),yes)
configure_flags_deb += -Dprint-cpdb=enabled
configure_flags_deb += -Dprint-cups=disabled
local_recommends += 'cpdb-backend-cups (>= 2.0~b5)',
else
configure_flags_deb += -Dprint-cpdb=disabled
configure_flags_deb += -Dprint-cups=enabled
endif

ifneq ($(DEB_BUILD_ARCH),$(DEB_HOST_ARCH))
configure_flags_deb += --cross-file=$(DEB_HOST_GNU_TYPE)-gobject-introspection.ini
endif

ifeq (,$(filter pkg.gtk4.nocolord,$(DEB_BUILD_PROFILES)))
configure_flags_deb += -Dcolord=enabled
else
configure_flags_deb += -Dcolord=disabled
endif

ifeq (,$(filter nodoc,$(DEB_BUILD_PROFILES)))
configure_flags_deb += -Dman-pages=true
else
configure_flags_deb += -Dman-pages=false
endif

ifeq (linux,$(DEB_HOST_ARCH_OS))
configure_flags_deb += -Dwayland-backend=true
else
configure_flags_deb += -Dvulkan=disabled
configure_flags_deb += -Dwayland-backend=false
endif

ifneq (,$(filter amd64 arm64 armel armhf i386 mips64el ppc64el riscv64 s390x hppa loong64 powerpc ppc64 sh4,$(DEB_HOST_ARCH)))
configure_flags_deb += -Dsysprof=enabled
else
configure_flags_deb += -Dsysprof=disabled
endif

ifeq ($(filter %-doc,$(built_binaries)),)
configure_flags_deb += -Ddocumentation=false
else
configure_flags_deb += -Ddocumentation=true
endif

ifeq ($(filter %-examples,$(built_binaries)),)
configure_flags_deb += -Dbuild-demos=false
configure_flags_deb += -Dbuild-examples=false
else
configure_flags_deb += -Dbuild-demos=true
configure_flags_deb += -Dbuild-examples=true
endif

ifeq ($(filter %-tests,$(built_binaries)),)
configure_flags_deb += -Dinstall-tests=false
else
configure_flags_deb += -Dinstall-tests=true
endif

ifeq ($(shell dpkg-vendor --is Ubuntu && echo yes), yes)
# Not in main repository
configure_flags_deb += -Dcloudproviders=disabled
else
configure_flags_deb += -Dcloudproviders=enabled
endif

configure_flags_udeb = \
	-Dauto_features=disabled \
	-Dbroadway-backend=false \
	-Dbuild-examples=false \
	-Dbuild-demos=false \
	-Dbuild-tests=false \
	-Dinstall-tests=false \
	-Dintrospection=disabled \
	-Dvulkan=disabled \
	-Dwayland-backend=false \
	-Dx11-backend=true \
	$(NULL)

%:
	dh $@ --buildsystem=meson $(dh_options)

override_dh_clean: debian/control
	rm -f $(call dh_subst_files,$(all_binaries))
	rm -rf debian/build debian/install
	# Rebuild the CSS from source. Note that gtk.css is hand-written,
	# not generated, so don't delete that one.
	rm -f gtk/theme/Default/Default-*.css
	dh_clean

# Add dependencies to generate files from the debian/*.in ones
override_dh_auto_build: $(call dh_subst_files,$(all_binaries))

override_dh_auto_build: rebuild-emoji
rebuild-emoji:
	gcc -o debian/convert-emoji gtk/emoji/convert-emoji.c $$(${DEB_BUILD_GNU_TYPE}-pkgconf --cflags --libs json-glib-1.0)
	set -eu; for input in debian/missing-sources/emojibase/packages/data/??/data.raw.json; do \
		lang="$$(echo "$$input" | sed -ne 's,^.*/\([a-z][a-z]\)/data.raw.json$$,\1,p')"; \
		output="gtk/emoji/$$lang.data"; \
		inputen="debian/missing-sources/emojibase/packages/data/en/data.raw.json"; \
		test -f "$$output" || continue; \
		debian/convert-emoji "$$inputen" "$$input" "$$output"; \
	done

override_dh_auto_configure: debian/control
	dh_auto_configure \
		--builddirectory=debian/build/deb \
		-- \
		$(configure_flags_deb) \
		$(NULL)
ifneq ($(filter %-udeb,$(built_binaries)),)
	dh_auto_configure \
		--builddirectory=debian/build/udeb \
		-- \
		$(configure_flags_udeb) \
		$(NULL)
endif

override_dh_auto_build:
	dh_auto_build --builddirectory=debian/build/deb
ifneq ($(filter %-udeb,$(built_binaries)),)
	dh_auto_build --builddirectory=debian/build/udeb
endif

test_backends = x11
test_timeout_multiplier = 3

ifeq (linux,$(DEB_HOST_ARCH_OS))
	test_backends += wayland
endif

ifneq ($(filter arm hppa mips% sparc%,$(DEB_HOST_ARCH_CPU)),)
$(info Slow architecture detected, increasing test timeout)
test_timeout_multiplier = 10
endif

ifneq ($(filter loong64 m68k riscv64 sh4,$(DEB_HOST_ARCH_CPU)),)
$(info Architecture with qemu buildds detected, increasing test timeout a lot)
test_timeout_multiplier = 20
endif

export LIBGL_ALWAYS_SOFTWARE=true

fuzzy_gsk_compare = \
	$(NULL)

ignore_gsk_compare = \
	unaligned-offscreen \
	$(NULL)

xfail_gsk_compare = \
	$(NULL)

fuzzy_reftests = \
	border-image-url \
	label-attribute-preference \
	label-wrap-justify \
	pseudoclass-on-box \
	quit-mnemonic \
	$(NULL)

ignore_reftests = \
	$(NULL)

xfail_reftests = \
	label-sizing \
	sizegroups-evolution-identity-page \
	$(NULL)

# ignore some of the gsk compare suites, upstream said those are going
# to give slightly different results depending on the renderers and the
# software rendering stack and are meant to be used in CI in a well
# defined environment and not really suitable for distros
# https://gitlab.gnome.org/GNOME/gtk/-/issues/6383
skipped_suites = \
	failing \
	flaky \
	headless \
	wayland_failing \
	wayland_gles_failing \
	gsk-compare-broadway \
	gsk-compare-gl \
	gsk-compare-cairo \
	gsk-compare-ngl \
	gsk-compare-vulkan \
	needs-udmabuf \
	$(NULL)

# The doc-check tests aren't passing yet
skipped_suites += docs

# mips*: many tests segfault as of 2024-09-16, see also https://bugs.debian.org/993550
# powerpc: "LLVM ERROR: Relocation type not implemented yet!" as of 2024-09-16, https://bugs.debian.org/1081947
# sparc*: "Target has no JIT support" as of 2024-09-16, https://bugs.debian.org/1081943
ifneq ($(filter mips% powerpc sparc%,$(DEB_HOST_ARCH_CPU)),)
$(info Disabling use of llvmpipe on this CPU)
export GALLIUM_DRIVER=softpipe
# https://bugs.debian.org/1077178
ignore_reftests += label-shadows
# These succeed with llvmpipe, but fail with softpipe
# https://gitlab.gnome.org/GNOME/gtk/-/issues/6085
# https://bugs.debian.org/1050077
# https://bugs.debian.org/1051168
fuzzy_gsk_compare += opacity-overdraw
ignore_gsk_compare += border-one-rounded
fuzzy_reftests += opacity
endif

# https://bugs.debian.org/1050312
ifeq (i386,$(DEB_HOST_ARCH_CPU))
ignore_reftests += \
	hbox-with-ellipsizing-wrapping-label \
	window-border-width \
	$(NULL)
endif

# https://bugs.debian.org/1024391
ifeq (big,$(DEB_HOST_ARCH_ENDIAN))
	ignore_reftests += border-image-excess-size
endif

# workaround 4.14 tests failing on s390x
ifeq (big,$(DEB_HOST_ARCH_ENDIAN))
	ignore_reftests += \
	background-blend-mode-clip-interaction \
	gradient-hard-stop \
	linear-gradient \
	background-origin \
	background-position-repeat \
	background-position \
	center-center-100x100-picture-in-100x200 \
	center-center-100x100-picture-in-100x200-overlay \
	center-center-100x100-picture-in-200x100 \
	center-center-100x100-picture-in-200x100-overlay \
	center-center-20x20-picture-in-100x200 \
	center-center-20x20-picture-in-100x200-overlay \
	center-center-20x20-picture-in-200x100 \
	center-center-20x20-picture-in-200x100-overlay \
	center-center-150x150-picture-in-100x200 \
	center-center-150x150-picture-in-100x200-overlay \
	center-center-150x150-picture-in-200x100 \
	center-center-150x150-picture-in-200x100-overlay \
	center-center-300x300-picture-in-100x200 \
	center-center-300x300-picture-in-100x200-overlay \
	center-center-300x300-picture-in-200x100 \
	center-center-300x300-picture-in-200x100-overlay \
	css-match-class \
	css-match-name \
	css-match-type \
	icon-vfuncs \
	image-load-from-file \
	linear-gradient-transition-to-other \
	$(NULL)
endif

override_dh_auto_test:
	env \
		BUILDDIR=debian/build/deb \
		FUZZY_GSK_COMPARE="$(fuzzy_gsk_compare)" \
		FUZZY_REFTESTS="$(fuzzy_reftests)" \
		IGNORE_GSK_COMPARE="$(ignore_gsk_compare)" \
		IGNORE_REFTESTS="$(ignore_reftests)" \
		XFAIL_GSK_COMPARE="$(xfail_gsk_compare)" \
		XFAIL_REFTESTS="$(xfail_reftests)" \
		BACKENDS="$(test_backends)" \
	debian/run-tests.sh -t $(test_timeout_multiplier) \
		$(addprefix --no-suite=,$(skipped_suites)) \
		$(NULL)

override_dh_auto_install:
	dh_auto_install --builddirectory=debian/build/deb --destdir=debian/install/deb
ifneq ($(filter %-udeb,$(built_binaries)),)
	dh_auto_install --builddirectory=debian/build/udeb --destdir=debian/install/udeb
endif

override_dh_installman:
	dh_installman -p gtk-update-icon-cache debian/update-icon-caches.8 \
		debian/install/deb/usr/share/man/man1/gtk4-update-icon-cache.1
	dh_installman --sourcedir=debian/install/deb

override_dh_install:
	# upstream's Gitlab-CI has /dev/udmabuf but Debian kernels normally don't
	rm -fv debian/install/deb/usr/share/installed-tests/gtk-4.0/gdk/dmabuf-support.test
	rm -fv debian/install/udeb/usr/bin/gtk4-update-icon-cache
	rm -frv debian/install/udeb/usr/share/gtk-4.0/valgrind
	rm -frv debian/install/udeb/usr/share/metainfo
	:
	dh_install -p$(UDEB_PKG) --sourcedir=debian/install/udeb
	dh_install --remaining-packages --sourcedir=debian/install/deb

# debhelper >= 13.4 makes all of /usr/libexec executable, which is not
# quite right for installed-tests
override_dh_fixperms:
	dh_fixperms -Xusr/libexec/installed-tests
ifneq ($(filter %-tests,$(built_binaries)),)
	chmod --recursive --changes a+rX,u+w,og-w debian/*-tests/usr/libexec/installed-tests
	chmod +x debian/*-tests/usr/libexec/installed-tests/gtk-4.0/tools/simplify \
	         debian/*-tests/usr/libexec/installed-tests/gtk-4.0/tools/settings \
	         debian/*-tests/usr/libexec/installed-tests/gtk-4.0/tools/enumerate \
	         debian/*-tests/usr/libexec/installed-tests/gtk-4.0/tools/simplify-3to4 \
	         debian/*-tests/usr/libexec/installed-tests/gtk-4.0/tools/validate
endif

override_dh_missing:
ifneq ($(filter %-udeb,$(built_binaries)),)
	dh_missing --sourcedir=debian/install/udeb --list-missing -X.la
endif
	dh_missing --sourcedir=debian/install/deb --fail-missing -X.la -Xusr/share/man/man1/gtk4-update-icon-cache.1

override_dh_installdocs:
	dh_installdocs -p$(COMMON_PKG) AUTHORS README.md NEWS
	dh_installdocs -p$(DOC_PKG) AUTHORS -X.in
	dh_installdocs --remaining-packages

override_dh_makeshlibs:
	dh_makeshlibs -p$(SHARED_PKG) -V --add-udeb=$(UDEB_PKG) -X$(MODULES_BASE_PATH) -- -c4
	dh_makeshlibs --remaining-packages -X$(MODULES_BASE_PATH)

override_dh_gencontrol-arch:
	dh_gencontrol -p$(SHARED_PKG) -- \
		-Vlocal:Recommends=$(local_recommends) \
		-Vgtk:Provides=gtk$(APIVER)-binver-$(GTK_BINARY_VERSION)
ifneq ($(filter %-udeb,$(built_binaries)),)
	dh_gencontrol -p$(UDEB_PKG) -- \
		-Vgtk:Provides=gtk$(APIVER)-binver-$(GTK_BINARY_VERSION)
endif
	dh_gencontrol --remaining-packages

override_dh_gnome_clean: