#! /usr/bin/make -f

#export DH_VERBOSE = 1
#export DEB_BUILD_OPTIONS = nostrip

export LC_ALL = C.UTF-8

include /usr/share/dpkg/default.mk
include /usr/share/debhelper/dh_package_notes/package-notes.mk

ifeq (amd64,$(DEB_HOST_ARCH))
export TEMPLATE_EFI_ARCH=x64
else ifeq (arm64,$(DEB_HOST_ARCH))
export TEMPLATE_EFI_ARCH=aa64
endif


ifeq ($(DEB_VENDOR),Ubuntu)
    DEFAULT_NTP_SERVERS = ntp.ubuntu.com
    SUPPORT_URL = http://www.ubuntu.com/support
    CONFFLAGS_DISTRO = \
		-Duser-path=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin \
		-Ddefault-llmnr=no \
		-Ddefault-mdns=no

else
    DEFAULT_NTP_SERVERS = 0.debian.pool.ntp.org 1.debian.pool.ntp.org 2.debian.pool.ntp.org 3.debian.pool.ntp.org
    SUPPORT_URL = https://www.debian.org/support
    CONFFLAGS_DISTRO =
endif

TEST_TIMEOUT_MULTIPLIER = "-t 10"

# Fail on missing files and symbol changes on distro builds, but not if we
# build/test upstream master. Also, don't put the debian revision in the version
# tag when we build/test upstream as it doesn't have any meaning in that case
# and it allows using the current date as the debian revision without causing
# unnecessary rebuilds all the time.
ifeq (, $(filter pkg.systemd.upstream, $(DEB_BUILD_PROFILES)))
    DH_MISSING ?= --fail-missing
    GENSYMBOLS_LEVEL ?= 4
    VERSION_TAG = $(DEB_VERSION)
else
    DH_MISSING ?= --list-missing
    GENSYMBOLS_LEVEL ?= 1
    VERSION_TAG = $(DEB_VERSION_UPSTREAM)
endif

# Make sure that DEB_BUILD_OPTIONS can be used by users to override any options
# we set here (By default DEB_BUILD_MAINT_OPTIONS overrides DEB_BUILD_OPTIONS).
export DEB_BUILD_MAINT_OPTIONS = optimize=+lto hardening=+pie $(DEB_BUILD_OPTIONS)

CONFFLAGS = \
	-Dstatic-libsystemd=true \
	-Dmode=release \
	-Dversion-tag="$(VERSION_TAG)" \
	-Dquotaon-path=/usr/sbin/quotaon \
	-Dquotacheck-path=/usr/sbin/quotacheck \
	-Dkmod-path=/usr/bin/kmod \
	-Dkexec-path=/usr/sbin/kexec \
	-Dsulogin-path=/usr/sbin/sulogin \
	-Dmount-path=/usr/bin/mount \
	-Dumount-path=/usr/bin/umount \
	-Dloadkeys-path=/usr/bin/loadkeys \
	-Dsetfont-path=/usr/bin/setfont \
	-Dnologin-path=/usr/sbin/nologin \
	-Dsysvinit-path=/etc/init.d \
	-Dsysvrcnd-path=/etc \
	-Dlocalegen-path=/usr/sbin/locale-gen \
	-Ddebug-shell=/usr/bin/bash \
	-Dzshcompletiondir=/usr/share/zsh/vendor-completions \
	-Ddbuspolicydir=/usr/share/dbus-1/system.d/ \
	-Dsupport-url=$(SUPPORT_URL) \
	-Ddefault-kill-user-processes=false \
	-Ddefault-dnssec=no \
	-Dpamconfdir=no \
	-Dpamlibdir=/usr/lib/$(DEB_HOST_MULTIARCH)/security \
	-Drpmmacrosdir=no \
	-Dvconsole=false \
	-Dfirstboot=true \
	-Dxkbcommon=disabled \
	-Dwheel-group=false \
	-Doomd=true \
	-Durlify=true \
	-Dgnutls=disabled \
	-Dlink-udev-shared=false \
	-Dlink-systemctl-shared=false \
	-Dntp-servers="$(DEFAULT_NTP_SERVERS)" \
	-Dsystem-uid-max=999 \
	-Dsystem-gid-max=999 \
	-Dnobody-user=nobody \
	-Dnobody-group=nogroup \
	-Ddev-kvm-mode=0660 \
	-Dgroup-render-mode=0660 \
	-Dsbat-distro-url=https://tracker.debian.org/pkg/systemd \
	-Drepart=enabled \
	-Dfdisk=enabled \
	-Dsysext=true \
	-Dnscd=true \
	-Dselinux=enabled \
	-Dhwdb=true \
	-Dsysusers=true \
	-Dinstall-tests=$(if $(filter noinsttest,$(DEB_BUILD_PROFILES)),false,true) \
	-Dman=$(if $(filter nodoc,$(DEB_BUILD_PROFILES)),disabled,enabled) \
	-Ddbus-interfaces-dir=$(if $(filter nodoc,$(DEB_BUILD_PROFILES)),no,yes) \
	-Dtranslations=true \
	-Dnss-myhostname=true \
	-Dnss-mymachines=enabled \
	-Dnss-resolve=enabled \
	-Dnss-systemd=true \
	-Dresolve=true \
	-Dstatus-unit-format-default=combined \
	-Dstandalone-binaries=true \
	-Dutmp=false \
	-Dmode=$(if $(filter pkg.systemd.upstream,$(DEB_BUILD_PROFILES)),developer,release)

ifeq ($(filter nocheck,$(DEB_BUILD_PROFILES))$(filter noinsttest,$(DEB_BUILD_PROFILES)),nochecknoinsttest)
CONFFLAGS += -Dtests=false
else
CONFFLAGS += -Dtests=true
endif

ifeq (, $(filter stage1, $(DEB_BUILD_PROFILES)))
CONFFLAGS += \
	-Daudit=enabled \
	-Dlibcryptsetup=enabled \
	-Dlibcryptsetup-plugins=enabled \
	-Dcoredump=true \
	-Delfutils=enabled \
	-Dapparmor=enabled \
	-Dlibidn2=enabled \
	-Dlibiptc=enabled \
	-Dlibcurl=enabled \
	-Dimportd=enabled \
	-Dmicrohttpd=enabled \
	-Dopenssl=enabled \
	-Dcryptolib=openssl \
	-Ddns-over-tls=openssl \
	-Dlibfido2=enabled \
	-Dtpm2=enabled \
	-Dp11kit=enabled \
	-Dqrencode=enabled \
	-Dpwquality=enabled \
	-Dhomed=enabled \
	-Duserdb=true \
	-Dpcre2=enabled \
	-Dukify=enabled \
	-Dbootloader=$(if $(filter amd64 i386 arm64 armhf riscv64,$(DEB_HOST_ARCH)),enabled,disabled) \
	-Dsysupdate=enabled
else
CONFFLAGS += \
	-Daudit=disabled \
	-Dlibcryptsetup=disabled \
	-Dlibcryptsetup-plugins=disabled \
	-Dcoredump=false \
	-Delfutils=disabled \
	-Dapparmor=disabled \
	-Dlibidn2=disabled \
	-Dlibiptc=disabled \
	-Dlibcurl=disabled \
	-Dimportd=disabled \
	-Dmicrohttpd=disabled \
	-Dopenssl=disabled \
	-Dlibfido2=disabled \
	-Dtpm2=disabled \
	-Dp11kit=disabled \
	-Dqrencode=disabled \
	-Dpwquality=disabled \
	-Dhomed=disabled \
	-Duserdb=false \
	-Dpcre2=disabled \
	-Dukify=disabled \
	-Dbootloader=disabled \
	-Dsysupdate=disabled
endif

# BPF/BTF are only enabled and usable on a few architectures
ifeq (, $(filter $(DEB_BUILD_PROFILES), stage1 pkg.systemd.nobpf))
ifneq (,$(filter $(DEB_TARGET_ARCH), amd64 arm64 ppc64el riscv64 s390x))
CONFFLAGS += \
	-Dbpf-framework=enabled \
	-Dbpf-compiler=clang

ifeq ($(DEB_VENDOR),Ubuntu)
# Source: https://git.launchpad.net/ubuntu/+source/xdp-tools/tree/debian/rules
# On Ubuntu, the `bpftool` in path is a shell wrapper pointing at
# the binary corresponding to runtime kernel version.
#
# We do not know the kernel version being used on the system building
# this package, and in sbuild/container environments uname might not
# even match anything available to the build.
# Gladly for the build we only need the tool to generate skeleton code.
#
# If any /usr/lib/linux-tools/*/bpftool exists, locate the most recent
# version and point to that, otherwise `bpftool` from PATH will be
# used.
bpftool_binary := $(shell find /usr/lib/linux-tools/ -name 'bpftool' -perm /u=x 2>/dev/null | sort | head -n1)
ifneq ($(bpftool_binary),)
export PATH := $(shell dirname $(bpftool_binary)):$(PATH)
endif
endif

# TODO: once linux-bpf-dev is available in all releases that we build for, drop the
# conditional on the wildcard and the alternative dependency on linux-headers-generic
ifneq ("$(wildcard /usr/include/$(DEB_HOST_MULTIARCH)/linux/bpf/vmlinux.h)","")
CONFFLAGS += -Dvmlinux-h=provided -Dvmlinux-h-path=/usr/include/$(DEB_HOST_MULTIARCH)/linux/bpf/vmlinux.h
else
ifneq (, $(filter pkg.systemd.upstream, $(DEB_BUILD_PROFILES)))
CONFFLAGS += -Dvmlinux-h=auto
else
CONFFLAGS += -Dvmlinux-h=disabled
endif
endif
endif
endif

ifeq (, $(filter pkg.systemd.upstream, $(DEB_BUILD_PROFILES)))
CONFFLAGS += -Ddns-servers=''
endif

# Increase the minimum number of sections to keep free in stub PE header in
# order to be able to create an UKI file with many DTBs (each of them is stored
# in a different .dtbauto section)
ifneq (,$(filter $(DEB_TARGET_ARCH), arm64 armhf riscv64))
CONFFLAGS += -Defi-stub-extra-sections=500
endif

override_dh_auto_configure:
	dh_auto_configure \
		-- $(CONFFLAGS) $(CONFFLAGS_DISTRO) $(CONFFLAGS_UPSTREAM)

execute_before_dh_auto_build:
	# blhc false positives: C++ fuzz test program, cc -E flags listing, PE-COFF EFI binaries
	@echo 'blhc: ignore-line-regexp: .* -o test-bus-vtable-cc.*'
	@echo 'blhc: ignore-line-regexp: .*cc -E.*'
	@echo 'blhc: ignore-line-regexp: .* -o src/boot/.*'

execute_before_dh_auto_clean:
ifneq (, $(filter pkg.systemd.upstream, $(DEB_BUILD_PROFILES)))
	debian/extra/checkout-upstream
endif

execute_before_dh_install:
	# remove unnecessary / unused files that are picked up by wildcards/directory listings in dh_install
	rm -rf debian/tmp/usr/share/doc/systemd/LICENSES/
	rm -f debian/tmp/usr/share/doc/systemd/LICENSE.*
	rm -f debian/tmp/usr/lib/udev/*.d/README
	# replace upstream sysusers.d/basic.conf with proper users for Debian
	if [ -d debian/tmp/usr/lib/sysusers.d/ ]; then \
		debian/extra/make-sysusers-basic > debian/tmp/usr/lib/sysusers.d/basic.conf; \
	fi

execute_after_dh_install-arch:
	# Ubuntu specific files
ifeq ($(DEB_VENDOR),Ubuntu)
	install -D --mode=644 debian/extra/udev.py debian/udev/usr/share/apport/package-hooks/udev.py
	install -D --mode=644 debian/extra/systemd.py debian/systemd/usr/share/apport/package-hooks/systemd.py
	install --mode=644 debian/extra/rules-ubuntu/*.rules debian/udev/usr/lib/udev/rules.d/
	install -D --mode=644 debian/extra/resolved.conf.d/cache-no-negative.conf debian/systemd-resolved/usr/lib/systemd/resolved.conf.d/cache-no-negative.conf
	cp -a debian/extra/units-ubuntu/* debian/systemd/usr/lib/systemd/system/
endif

ifeq (,$(filter stage1 pkg.systemd.upstream, $(DEB_BUILD_PROFILES)))
ifeq ($(DEB_VENDOR),Debian)
ifneq ($(TEMPLATE_EFI_ARCH),)
	debian/extra/gen-signing-template $(DEB_VERSION) $(DEB_HOST_ARCH) $(TEMPLATE_EFI_ARCH)
endif
endif
endif

override_dh_missing:
	dh_missing $(DH_MISSING)

override_dh_installsystemd:
	dh_installsystemd -psystemd-timesyncd
	dh_installsystemd -psystemd-oomd systemd-oomd.service
	dh_installsystemd -psystemd-oomd --no-stop-on-upgrade systemd-oomd.socket
	dh_installsystemd -psystemd-container --no-stop-on-upgrade machines.target
	dh_installsystemd -psystemd-userdbd --no-stop-on-upgrade systemd-userdbd.socket
	dh_installsystemd -psystemd-homed --no-also systemd-homed.service systemd-homed-activate.service
	dh_installsystemd -psystemd-resolved
	dh_installsystemd -pudev systemd-udevd.service

override_dh_installsystemduser:

execute_after_dh_installsysusers:
	dh_installsysusers -pudev --name=debian-udev

PROJECT_VERSION ?= $(shell awk '/(PROJECT|PACKAGE)_VERSION / {print $$3}' obj-$(DEB_HOST_GNU_TYPE)/config.h | tr -d \")

# The SysV compat tools (which are symlinks to systemctl) are
# quasi-essential, so add their dependencies to Pre-Depends
# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=753589
override_dh_shlibdeps:
	dh_shlibdeps -psystemd -Llibsystemd-shared -- \
		-dPre-Depends -edebian/systemd/usr/bin/systemctl \
		-dDepends
	dh_shlibdeps -plibsystemd-shared -lusr/lib/$(DEB_HOST_MULTIARCH)/systemd
	dh_shlibdeps --remaining-packages -Llibsystemd-shared

override_dh_makeshlibs:
	sed 's/SHARED_LIB_VERSION/$(PROJECT_VERSION)/' debian/shlibs.local.in > debian/shlibs.local
	dh_makeshlibs -plibudev1 --add-udeb=libudev1-udeb -- -c$(GENSYMBOLS_LEVEL)
	dh_makeshlibs -plibsystemd-shared -Xlibsystemd-shared -Xlibsystemd-core -- -c$(GENSYMBOLS_LEVEL)
	dh_makeshlibs --remaining-packages -- -c$(GENSYMBOLS_LEVEL)

override_dh_auto_test:
ifeq (, $(filter nocheck, $(DEB_BUILD_OPTIONS)))
	# some tests hang under fakeroot, so disable fakeroot
	env -u LD_PRELOAD meson test -C obj-$(DEB_HOST_GNU_TYPE) --print-errorlogs $(TEST_TIMEOUT_MULTIPLIER)
endif

ifeq ($(DEB_VENDOR),Ubuntu)
ifeq (, $(filter pkg.systemd.upstream, $(DEB_BUILD_PROFILES)))
execute_after_dh_link:
	# Mask systemd-gpt-auto-generator by default on Ubuntu
	dh_link -psystemd /dev/null /etc/systemd/system-generators/systemd-gpt-auto-generator
endif
endif

%:
	dh $@

# TODO: ideally it should be possible to disable this via an env var or DEB_BUILD_OPTIONS
override_dh_strip_nondeterminism:
ifeq (, $(filter pkg.systemd.upstream, $(DEB_BUILD_PROFILES)))
	dh_strip_nondeterminism
endif