#!/usr/bin/make -f

ifeq ($(filter noudeb,$(DEB_BUILD_PROFILES)),)
BUILD_UDEB := 1
endif

export KDIR = $(shell find /usr/lib/modules/ -maxdepth 2 -mindepth 2 -type l -name build | sort | tail -1)

D   := $(CURDIR)/debian/kmod
DK  := $(CURDIR)/debian/libkmod2
DD  := $(CURDIR)/debian/libkmod-dev
DU  := $(CURDIR)/debian/kmod-udeb
DKU := $(CURDIR)/debian/libkmod2-udeb
TU  := $(CURDIR)/debian/tmp-udeb

CONFFLAGS =
CONFFLAGS_deb  = $(CONFFLAGS) \
  -D build-tests=true \
  -D docs=true \
  -D openssl=enabled \
  -D zlib=disabled \
  -D xz=enabled \
  -D zstd=enabled
CONFFLAGS_udeb = $(CONFFLAGS) \
  -D docs=false \
  -D openssl=disabled \
  -D zlib=disabled \
  -D xz=enabled \
  -D zstd=disabled

##############################################################################
include /usr/share/dpkg/architecture.mk

ifdef BUILD_UDEB
  BUILD_UDEB_TARGET := build-udeb/.stamp-build
endif

##############################################################################
%:
	dh $@ --buildsystem=meson

execute_before_dh_clean:
	rm -rf build-*deb $(TU)

# ignore dh_autoreconf until the autoconf-based build system will be removed
override_dh_autoreconf:

build-deb/build.ninja:
	$(shell DEB_BUILD_MAINT_OPTIONS="hardening=+bindnow" \
		dpkg-buildflags --export=configure || true) \
	dh_auto_configure --builddir=build-deb -- $(CONFFLAGS_deb)

build-udeb/build.ninja:
	$(subst -O2,-Os -fomit-frame-pointer,$(shell DEB_BUILD_MAINT_OPTIONS="hardening=-all" \
		dpkg-buildflags --export=configure || true)) \
	dh_auto_configure --builddir=build-udeb -- $(CONFFLAGS_udeb)

override_dh_auto_configure:

build-deb/.stamp-build: build-deb/build.ninja
	dh_auto_build --builddir=build-deb
	touch $@

build-udeb/.stamp-build: build-udeb/build.ninja
	# ignore the blhc false positives (see CONFFLAGS_udeb)
	@echo 'blhc: ignore-line-regexp: .* [^ ]*cc .+ -Os -fomit-frame-pointer .+'
	@echo 'blhc: ignore-line-regexp:  *(LD|CC) .+/build-deb/testsuite/.+'
	dh_auto_build --builddir=build-udeb
	touch $@

override_dh_auto_build: build-deb/.stamp-build $(BUILD_UDEB_TARGET)

override_dh_auto_test:
	dh_auto_test --builddir=build-deb

override_dh_auto_install:
	dh_auto_install --builddir=build-deb
ifdef BUILD_UDEB
	cd build-udeb && DESTDIR=$(TU) meson install --tags runtime
endif

override_dh_install:
	dh_install -Nkmod-udeb -Nlibkmod2-udeb
	sed -i -re '/^Requires.private:/d' \
		$(DD)/usr/lib/*/pkgconfig/libkmod.pc
ifdef BUILD_UDEB
	dh_install --sourcedir=$(TU) -pkmod-udeb -plibkmod2-udeb
	egrep -i '^[a-z]' debian/extra/aliases.conf > $(DU)/etc/modprobe.d/aliases.conf
endif
	# FIXME temporarily disable until this will be in Debian
	# https://github.com/scop/bash-completion/pull/1248
	rm -r $D/usr/share/bash-completion/

override_dh_installdocs:
	dh_installdocs -pkmod -plibkmod-dev --link-doc=libkmod2
	dh_installdocs -plibkmod2
	cp libkmod/README $(DD)/usr/share/doc/libkmod2/README.libkmod

override_dh_installchangelogs:
	dh_installchangelogs NEWS

override_dh_installinit:
	dh_installinit --no-start

override_dh_makeshlibs:
	dh_makeshlibs -V'libkmod2 (>= $(shell perl debian/highest_symbol_version debian/libkmod2.symbols))' -- -c4

override_dh_shlibdeps:
	dh_shlibdeps -- --warnings=7