#!/usr/bin/make -f

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

DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
DEB_HOST_ARCH ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
DEB_HOST_ARCH_OS ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_OS)
DEB_HOST_ARCH_BITS ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_BITS)
DEB_HOST_ARCH_CPU ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_CPU)

export PATH := $(PATH):$(shell pwd)/bin
export CFLAGS := $(shell dpkg-buildflags --get CFLAGS) $(shell dpkg-buildflags --get CPPFLAGS)
export CXXFLAGS := $(shell dpkg-buildflags --get CXXFLAGS) $(shell dpkg-buildflags --get CPPFLAGS)
export LDFLAGS := $(shell dpkg-buildflags --get LDFLAGS) -Wl,--as-needed

# Upstream changelog
upstream_changes := dist/changes-$(shell dpkg-parsechangelog | sed -n 's/^Version: //p' | cut -f1 -d '-' | sed -e 's/+dfsg//' | sed -e 's/+git.*//')
# Distribution vendor
vendor := $(shell dpkg-vendor --query Vendor)

# To easier the files installation according to OSes and CPUs, we create three
# kinds of install files: foo.install-common, foo.install-$DEB_HOST_ARCH_CPU and
# foo.install-$DEB_HOST_ARCH_OS. In this case we can fine-tune what we install.
#
# Note that if any foo.install-* file exists and foo.install exist too, the
# later will get overwritten.
#
# I've opened a bug in debhelper to allow this:
# http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=703201

# Retrieve packages that have a .install-common file
pkgs_with_common = $(patsubst debian/%.install-common,%,$(wildcard debian/*.install-common))
# Retrieve packages that have a .install-$DEB_HOST_ARCH_CPU file
pkgs_with_arch = $(patsubst debian/%.install-$(DEB_HOST_ARCH_CPU),%,$(wildcard debian/*.install-$(DEB_HOST_ARCH_CPU)))
# Retrieve packages that have a .install-$DEB_HOST_ARCH_OS file
pkgs_with_os = $(patsubst debian/%.install-$(DEB_HOST_ARCH_OS),%,$(wildcard debian/*.install-$(DEB_HOST_ARCH_OS)))


ifneq (,$(filter libqt5sql5-ibase,$(shell dh_listpackages)))
	extra_configure_opts += -plugin-sql-ibase
else
	extra_configure_opts += -no-sql-ibase
endif

no_pch_architectures := arm64
ifeq ($(DEB_HOST_ARCH),$(findstring $(DEB_HOST_ARCH), $(no_pch_architectures)))
	extra_configure_opts += -no-pch
endif

gles2_architectures := armel armhf
ifeq ($(DEB_HOST_ARCH),$(findstring $(DEB_HOST_ARCH), $(gles2_architectures)))
	extra_configure_opts += -opengl es2
else
	extra_configure_opts += -opengl desktop
endif

ifneq ($(DEB_HOST_ARCH_OS),$(findstring $(DEB_HOST_ARCH_OS), linux kfreebsd))
	extra_configure_opts += -no-eglfs
endif

# https://bugs.debian.org/842304
ifeq ($(DEB_HOST_ARCH),i386)
	extra_configure_opts += -no-use-gold-linker
endif

# Compile without sse2 support on i386
# Do not use pre compiled headers in order to be able to rebuild the gui
# submodule.
ifeq ($(DEB_HOST_ARCH_CPU),i386)
	cpu_opt = -no-sse2 -no-pch
endif

ifeq ($(DEB_HOST_ARCH_OS),linux)
  ifneq (,$(filter $(DEB_HOST_ARCH),alpha ia64 mips64 mips64el arm64))
	platform_arg = linux-g++
  else ifeq ($(DEB_HOST_ARCH_BITS),64)
	platform_arg = linux-g++-64
  else
	platform_arg = linux-g++
  endif
else ifeq ($(DEB_HOST_ARCH_OS),hurd)
	platform_arg = hurd-g++
else ifeq ($(DEB_HOST_ARCH_OS),kfreebsd)
	platform_arg = gnukfreebsd-g++
else
	$(error Unknown qmake mkspec for $(DEB_HOST_ARCH_OS))
endif

ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
	NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
else
	NUMJOBS = 1
endif

%:
	dh $@ --parallel --with pkgkde_symbolshelper

override_dh_auto_configure:
	MAKEFLAGS="-j$(NUMJOBS)" ./configure \
	            -confirm-license \
	            -prefix "/usr" \
	            -bindir "/usr/lib/$(DEB_HOST_MULTIARCH)/qt5/bin" \
	            -libdir "/usr/lib/$(DEB_HOST_MULTIARCH)" \
	            -docdir "/usr/share/qt5/doc" \
	            -headerdir "/usr/include/$(DEB_HOST_MULTIARCH)/qt5" \
	            -datadir "/usr/share/qt5" \
	            -archdatadir "/usr/lib/$(DEB_HOST_MULTIARCH)/qt5" \
	            -plugindir "/usr/lib/$(DEB_HOST_MULTIARCH)/qt5/plugins" \
	            -importdir "/usr/lib/$(DEB_HOST_MULTIARCH)/qt5/imports" \
	            -translationdir "/usr/share/qt5/translations" \
	            -hostdatadir "/usr/lib/$(DEB_HOST_MULTIARCH)/qt5" \
	            -sysconfdir "/etc/xdg" \
	            -examplesdir "/usr/lib/$(DEB_HOST_MULTIARCH)/qt5/examples" \
	            -opensource \
	            -plugin-sql-mysql \
	            -plugin-sql-odbc \
	            -plugin-sql-psql \
	            -plugin-sql-sqlite \
	            -no-sql-sqlite2 \
	            -plugin-sql-tds \
	            -system-sqlite \
	            -platform $(platform_arg) \
	            -system-harfbuzz \
	            -system-zlib \
	            -system-libpng \
	            -system-libjpeg \
	            -system-doubleconversion \
	            -openssl \
	            -no-rpath \
	            -verbose \
	            -optimized-qmake \
	            -dbus-linked \
	            -no-strip \
	            -no-separate-debug-info \
	            -qpa xcb \
	            -xcb \
	            -glib \
	            -icu \
	            -accessibility \
	            -compile-examples \
	            -no-directfb \
	            -gstreamer 1.0 \
	            $(extra_configure_opts) \
	            $(cpu_opt)

override_dh_auto_clean:
	[ ! -f Makefile ] || $(MAKE) confclean distclean

	# Extra stuff missed by confclean/distclean

	# Misc. files
	rm -f \
	  config.status \
	  config.tests/.qmake.cache \
	  examples/dbus/*/Makefile.* \
	  mkspecs/qconfig.pri \
	  src/corelib/global/qconfig.* \
	;

	# Misc. directories
	rm -rf \
	  doc-build/ \
	  doc/html/ \
	  doc/qch/ \
	  examples/tools/plugandpaint/plugins/ \
	  examples/tools/styleplugin/styles/ \
	  lib/ \
	  plugins/ \
	;

	# Leftover dirs
	find -depth -type d \( -false \
	  -o -name debug-shared \
	  -o -name debug-static \
	  -o -name \*.gch \
	  -o -name .moc\* \
	  -o -name .obj\* \
	  -o -name .pch \
	  -o -name pkgconfig \
	  -o -name .rcc \
	  -o -name release-shared \
	  -o -name release-static \
	  -o -name .uic \
	\) -print0 | xargs -0 rm -rf

	# Leftover files and all symlinks
	find \( -false \
	  -o -name lib\*.a \
	  -o -name Makefile.Debug \
	  -o -name Makefile.Release \
	  -o -name \*.o \
	  -o -name \*.prl \
	  -o -name lib\*.so \
	  -o -type l \
	\) -print0 | xargs -0 rm -rf

	# Delete all Makefiles, excluding some from src/3rdparty
	find $(CURDIR) -name Makefile \
	  ! -path $(CURDIR)/src/3rdparty/Makefile \
	  ! -path $(CURDIR)/src/3rdparty/freetype/\* \
	  ! -path $(CURDIR)/src/3rdparty/zlib/\* \
	  ! -path $(CURDIR)/src/3rdparty/ptmalloc/Makefile \
	-print0 | xargs -0 rm -rf

	# Any remaining executables
	find $(CURDIR) -type f -perm /u+x,g+x,o+x -exec file -i '{}' \; \
	| grep -e application/x-executable \
	| cut -d ':' -f 1 | xargs rm -f

	# Generated on build
	rm -vf debian/stamp-makefile-build-tools

	# more leftovers
	rm -f .device.vars .qmake.vars

ifeq ($(vendor),Ubuntu)
	rm -rf po
endif

override_dh_auto_build-indep:
	dh_auto_build -- docs

override_dh_auto_build-arch:
	# Bootstrap corelibs in order to be able to build the helper tools to
	# regenerate some upstream-provided files.
	cd $(CURDIR)/src; ../bin/qmake; make sub-corelib
	# Add here the code to generate the helpers and then the headers.
	LC_ALL=C.UTF-8 sh debian/generateTLDs.sh
	# Clean up the compiled code and start again.
	cd $(CURDIR)/src; make distclean
	make clean
	dh_auto_build

override_dh_auto_install-arch:
	dh_auto_install -Smakefile -- INSTALL_ROOT=$(CURDIR)/debian/tmp/

ifeq ($(DEB_HOST_ARCH_CPU),i386)
	# Rebuild the necessary libs with SSE2 support.
	# Create the destination directory.
	install -d debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/sse2/

	# corelib needs make clean first to be able to rebuild.
	cd $(CURDIR)/src/corelib; make clean ; ../../bin/qmake -config sse2; make
	cp -av lib/libQt5Core.so.* debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/sse2/

	# gui on turn doesn't needs it, and actually fails if done.
	cd $(CURDIR)/src/gui; ../../bin/qmake -config sse2; make
	cp -av lib/libQt5Gui.so.* debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/sse2/
endif

	# Fix wrong path in pkgconfig files
	find $(CURDIR)/debian/tmp/usr/lib/*/pkgconfig -type f -name '*.pc' \
		-exec perl -pi -e "s, -L$(CURDIR)/?\S+,,g" {} \;

	# Configuration file for qt5-default package
	mkdir -p $(CURDIR)/debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/qtchooser
	ln -s /usr/share/qtchooser/qt5-$(DEB_HOST_MULTIARCH).conf $(CURDIR)/debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/qtchooser/default.conf

	# Remove leftover directories
	find $(CURDIR)/debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/qt5 -depth -type d \( -false \
	  -o -name .moc\* \
	  -o -name .obj\* \
	  -o -name .pch \
	  -o -name .rcc \
	\) -print0 | xargs -0 rm -rf

	# Remove libtool-like files
	rm -f debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/*.la

	# A user of Qt built by a distro doesn't need to find where the plugins
	# are via CMake, so don't install them.
	rm -fv debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/cmake/Qt5*/Q*Plugin.cmake

	# There is also no need to install libQtBootstrap. As it's name indicates it's
	# only used to bootstrap qt.
	rm -fv debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/libQt5Bootstrap*
	rm -fv debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/pkgconfig/Qt5Bootstrap.pc

	# Remove bogus exec bits from some data files in mkspecs, docs, examples
	find debian/tmp/usr/share/qt5/ debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/qt5/ \
	     debian/tmp/usr/share/qt5/doc/ \
		-perm /u+x,g+x,o+x -type f \
		-regex '.*\.\(app\|conf\|cpp\|h\|js\|php\|png\|pro\|xml\|xsl\)$$' \
		-exec chmod a-x {} \;

override_dh_auto_install-indep:
	dh_auto_build -- INSTALL_ROOT=$(CURDIR)/debian/tmp install_docs

override_dh_install:
	# Now flush all the .install-* files as .install files.
	set -e; for pkg in $(pkgs_with_common); do \
		cat debian/$$pkg.install-common >> debian/$$pkg.install ; \
	done

	set -e; for pkg in $(pkgs_with_arch); do \
		cat debian/$$pkg.install-$(DEB_HOST_ARCH_CPU) >> debian/$$pkg.install ; \
	done

	set -e; for pkg in $(pkgs_with_os); do \
		cat debian/$$pkg.install-$(DEB_HOST_ARCH_OS) >> debian/$$pkg.install ; \
	done

	# Call dh_install normally. It will process .install, .install.ARCH
	# and/or .install.OS files.
	dh_install --fail-missing

override_dh_installdocs:
	dh_installdocs --all LGPL_EXCEPTION.txt

override_dh_installchangelogs:
	if [ -f $(upstream_changes) ] ; then \
		dh_installchangelogs $(upstream_changes); \
	else \
		dh_installchangelogs; \
	fi

override_dh_strip:
	dh_strip -pqtbase5-examples --dbgsym-migration='qtbase5-examples-dbg (<< 5.7.1+dfsg-1~)'
	dh_strip -pqtbase5-dev-tools -pqt5-qmake --dbgsym-migration='qtbase5-dev-tools-dbg (<< 5.7.1+dfsg-1~)'
	dh_strip --remaining-packages --dbgsym-migration='qtbase5-dbg (<< 5.7.1+dfsg-1~)'

override_dh_makeshlibs:
	dh_makeshlibs -V -XlibQt5EglDeviceIntegration -XlibQt5EglFsKmsSupport -XlibQt5XcbQpa

override_dh_clean:
	dh_clean

	# Don't forget to remove the .install files we generated.
	for pkg in $(pkgs_with_common); do \
		rm -f debian/$$pkg.install ; \
	done

	for pkg in $(pkgs_with_arch); do \
		rm -f debian/$$pkg.install ; \
	done

	for pkg in $(pkgs_with_os); do \
		rm -f debian/$$pkg.install ; \
	done