#!/usr/bin/make -f

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

CHANGELOG_DATE ?= $(shell LC_ALL=C date -u -d @$(SOURCE_DATE_EPOCH) +"%d %B %Y")

export DH_VERBOSE=1
export DEB_BUILD_MAINT_OPTIONS = hardening=+all
export DEB_LDFLAGS_MAINT_APPEND = -Wl,--as-needed

BUILDDIR=$(CURDIR)/debian/build

ARCH=generic;ice40;ecp5;himbaechel
HIMBAECHEL_UARCH=gowin;gatemate;xilinx
HIMBAECHEL_GOWIN_DEVICES=all

%:
	dh $@

NO_GUI_PACKAGES = \
    -Nnextpnr-ice40-qt \
    -Nnextpnr-ecp5-qt \
    -Nnextpnr-himbaechel-gowin-qt \
    -Nnextpnr-himbaechel-gatemate-qt \
    -Nnextpnr-himbaechel-xilinx-qt

CMAKE_FLAGS := \
    -DCURRENT_GIT_VERSION="$(DEB_VERSION)" \
    -DBUILD_PYTHON=ON \
    -DBUILD_TESTS=ON \
    -DEXTERNAL_CHIPDB=ON \
    -DARCH='$(ARCH)' \
    -DICEBOX_DATADIR=/usr/share/fpga-icestorm/chipdb \
    -DICESTORM_INSTALL_PREFIX=/usr/share/fpga-icestorm/chipdb \
    -DTRELLIS_LIBDIR=/usr/lib/$(DEB_HOST_MULTIARCH)/trellis/ \
    -DTRELLIS_DATADIR=/usr/share/trellis/ \
    -DHIMBAECHEL_UARCH='$(HIMBAECHEL_UARCH)' \
    -DHIMBAECHEL_SPLIT=ON \
    -DHIMBAECHEL_GOWIN_DEVICES=$(HIMBAECHEL_GOWIN_DEVICES) \
    -DHIMBAECHEL_PEPPERCORN_PATH=/usr/share/peppercorn \
    -DHIMBAECHEL_PRJXRAY_DB=/usr/share/prjxray/database

HELP2MAN_FLAGS = \
    --name="Next Generation Place and Route" \
    --version-string="$(DEB_VERSION)" \
    --section=1 \
    --manual="General Commands" \
    --no-info \
    --no-discard-stderr

override_dh_auto_clean:
	rm -rf $(BUILDDIR)
	rm -f debian/nextpnr-*.1
	dh_auto_clean

override_dh_auto_configure:
	dh_auto_configure \
		--arch \
		$(NO_GUI_PACKAGES) \
		-B$(BUILDDIR)/cli \
		-- \
		$(CMAKE_FLAGS) \
		-DBUILD_GUI=OFF \
		-DEXPORT_BBA_FILES=$(BUILDDIR)/bba
	dh_auto_configure \
		--arch \
		--remaining-packages \
		-B$(BUILDDIR)/gui \
		-- \
		$(CMAKE_FLAGS) \
		-DBUILD_GUI=ON \
		-DIMPORT_BBA_FILES=$(BUILDDIR)/bba

# Building the BBA files requires about 5GB in the worst case, so determine
# how many of those we can fit into the current machine. There are about 8
# of these processes, so above that number, the memory limit is less
# relevant, and we benefit more from mixing BBA generation and normal
# compilation.

CONCURRENCY_BBA=$(shell guess_concurrency --max 8 --require-mem 5G)
CONCURRENCY_DEF=$(shell guess_concurrency --max 8)

override_dh_auto_build:
ifneq ($(CONCURRENCY_BBA),$(CONCURRENCY_DEF))
	dh_auto_build \
		--arch \
		$(NO_GUI_PACKAGES) \
		-B$(BUILDDIR)/cli \
		-- \
		-j$(CONCURRENCY_BBA) \
		nextpnr-all-bba
endif
	dh_auto_build \
		--arch \
		$(NO_GUI_PACKAGES) \
		-B$(BUILDDIR)/cli
	dh_auto_build \
		--arch \
		--remaining-packages \
		-B$(BUILDDIR)/gui

override_dh_auto_test:
	dh_auto_test \
		--arch \
		-B$(BUILDDIR)/cli
	#dh_auto_test -B$(BUILDDIR)/gui

override_dh_auto_install:
	dh_auto_install \
		--arch \
		$(NO_GUI_PACKAGES) \
		-B$(BUILDDIR)/cli \
		--destdir=debian/tmp/cli
	dh_auto_install \
		--arch \
		--remaining-packages \
		-B$(BUILDDIR)/gui \
		--destdir=debian/tmp/gui

override_dh_install:
	dh_install \
		--arch \
		$(NO_GUI_PACKAGES) \
		--sourcedir=debian/tmp/cli
	dh_install \
		--arch \
		--remaining-packages \
		--sourcedir=debian/tmp/gui

define help2man
	help2man \
		$(HELP2MAN_FLAGS) \
		debian/tmp/$(1)/usr/bin/$(2) \
		> debian/tmp/$(1)/$(2).1

endef

override_dh_installman:
	$(foreach prog,$(notdir $(wildcard debian/tmp/cli/usr/bin/nextpnr-*)),$(call help2man,cli,$(prog)))
	$(foreach prog,$(notdir $(wildcard debian/tmp/gui/usr/bin/nextpnr-*)),$(call help2man,gui,$(prog)))
	dh_installman \
		--arch \
		$(NO_GUI_PACKAGES) \
		--sourcedir=debian/tmp/cli
	dh_installman \
		--arch \
		--remaining-packages \
		--sourcedir=debian/tmp/gui

override_dh_installexamples:
	dh_installexamples --exclude=.gitignore