rules

#!/usr/bin/make -f
#export DH_VERBOSE = 1

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

# The package name for authd, used only locally to avoid repetitions
AUTHD_GO_PACKAGE := $(shell grep-dctrl -s XS-Go-Import-Path -n - ./debian/control)

export GOFLAGS := -ldflags=-X=$(AUTHD_GO_PACKAGE)/internal/consts.Version=$(DEB_VERSION_UPSTREAM) --mod=vendor -buildmode=pie

export DEB_BUILD_MAINT_OPTIONS := optimize=-lto

# Strict symbols checking
export DPKG_GENSYMBOLS_CHECK_LEVEL := 4

# Copy in build directory all content to embed
export DH_GOLANG_INSTALL_ALL := 1

# We want to take whatever ubuntu propose to us (as it won’t download a newer version),
# as long as it matches the go.mod go stenza which is the language requirement.
export GOTOOLCHAIN := local

# Needed for Rust vendored sources tracking
export CARGO_VENDOR_DIR := $(CURDIR)/vendor_rust

# Needed for Rust configure/build/test stages
export DEB_HOST_GNU_TYPE DEB_HOST_RUST_TYPE
export CARGO_HOME = $(CURDIR)/debian/cargo_home

# Used not to hardcode the daemons and PAM module paths
export AUTHD_DAEMONS_PATH := /usr/libexec
export AUTHD_PAM_MODULES_PATH = /usr/lib/$(DEB_TARGET_GNU_TYPE)/security

# Skip some tests that rely on external dependencies when building package:
# they need external commands (e.g. `vhs`) that are not available in the build environment.
export AUTHD_SKIP_EXTERNAL_DEPENDENT_TESTS=1

# Skip some tests that fail when running as root as it may happen when building the packages
# in sbuild or similar environments.
export AUTHD_SKIP_ROOT_TESTS := 1

# Defines the targets to be built as part of dh_auto_build
export DH_GOLANG_BUILDPKG := \
    $(AUTHD_GO_PACKAGE)/cmd/authctl \
    $(AUTHD_GO_PACKAGE)/cmd/authd \
	$(AUTHD_GO_PACKAGE)/pam \
	$(NULL)

# Prepend the following paths to PATH:
# * The cargo wrapper. This will either be the path to the wrapper installed by
#   dh-cargo, or the path to the wrapper installed by the cargo-$VERSION package.
# * The Go executable from the backported Go package. It's possible that no
#   backported Go package is installed, because the golang-go package already
#   satisfies the dependency. It's still fine to also add the path in that case,
#   it will be ignored if it doesn't exist.
export PATH := $(shell ./debian/get-depends-cargo-bin-path.sh):$(shell ./debian/get-depends-go-bin-path.sh):$(shell printenv PATH)

BUILDDIR := $(CURDIR)/obj-$(DEB_HOST_GNU_TYPE)

export BUILT_PAM_LIBS_PATH := obj-$(DEB_HOST_GNU_TYPE)/src/$(AUTHD_GO_PACKAGE)/pam

%:
	# --without=single-binary can be removed with dh 15.
	dh $@ --buildsystem=golang --with=golang,apport --without=single-binary

override_dh_auto_clean:
	dh_auto_clean
	dh_auto_clean --buildsystem=cargo

	# Vendor Go dependencies when building the source package
	[ -d vendor/ ] || go mod vendor

	# Vendor Rust dependencies when building the source package
	[ -d vendor_rust/ ] || debian/vendor-rust.sh

	# Cleanup empty cargo-checksum
	rm -f debian/cargo-checksum.json

	# Cleanup generated service files
	rm -f debian/*.service

override_dh_auto_configure:
	dh_auto_configure

	touch debian/cargo-checksum.json

	# Go manual if cargo-vendor-filterer is not around, otherwise dh-cargo will
	# ensure that what we've filtered won't be still listed in debian/control.
	# TODO: Drop this when we won't care about noble anymore.
	if ! command -v cargo-vendor-filterer 2>/dev/null; then \
		env DEB_CARGO_CRATE="$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM)" \
		  cargo prepare-debian "$(CARGO_VENDOR_DIR)"; \
	else \
	    echo "cargo version: $$(cargo --version)"; \
	    echo "cargo-vendor-filterer version: $$(cargo-vendor-filterer --version)"; \
		dh_auto_configure --buildsystem=cargo; \
	fi

	for i in debian/*.service.in debian/pam-configs/*.in; do \
		sed s,@AUTHD_DAEMONS_PATH@,$(AUTHD_DAEMONS_PATH),g $$i > $${i%.*}; \
	done

override_dh_auto_build:
	# Build PAM library & Go loader
	DH_GOLANG_GO_GENERATE=1 dh_auto_build -- $(AUTHD_GO_PACKAGE)/pam

	# Build the NSS library
	echo "PATH: $(PATH)"
	echo "Building NSS library with $$(which cargo) ($$(cargo --version))"
	cargo build --release

	# Build the daemon
	dh_auto_build -- $(AUTHD_GO_PACKAGE)/cmd/authd

override_dh_auto_test:
	AUTHD_SKIP_FLAKY_TESTS=1 dh_auto_test

override_dh_auto_install:
	dh_auto_install --destdir=debian/tmp -- --no-source

	# Fills the built-using variables for rust
	/usr/share/cargo/bin/dh-cargo-built-using authd

	# Install gdm-PAM config file
	dh_installpam -pauthd --name=gdm-authd