#!/usr/bin/make -f

export DEB_BUILD_MAINT_OPTIONS = hardening=+all

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

# The Rust and Node.js bindings are each built unless their build profile is
# requested, so a bootstrap (or an architecture without one of the toolchains)
# can drop them with -Ppkg.libcec.norust and/or -Ppkg.libcec.nonodejs.
BUILD_RUST = $(if $(filter pkg.libcec.norust,$(DEB_BUILD_PROFILES)),,yes)
BUILD_NODE = $(if $(filter pkg.libcec.nonodejs,$(DEB_BUILD_PROFILES)),,yes)

# where Debian's node looks for arch-specific (native) modules
NODE_MODULE_DIR = usr/lib/$(DEB_HOST_MULTIARCH)/nodejs/libcec

%:
	dh $@ --with python3

execute_before_dh_auto_configure:
	cp --verbose \
	   debian/src/libcec/platform/adl/adl_defines.h \
	   debian/src/libcec/platform/adl/adl_sdk.h \
	   debian/src/libcec/platform/adl/adl_structures.h \
	   src/libcec/platform/adl/

override_dh_auto_configure:
	dh_auto_configure -- \
		-DCMAKE_BUILD_TYPE=Release \
		-DBUILD_SHARED_LIBS=1 \
		-DCMAKE_INSTALL_LIBDIR=/usr/lib/$(DEB_HOST_MULTIARCH) \
		-DDISABLE_BUILDINFO=ON \
		$(if $(BUILD_RUST),-DENABLE_RUST_LIB=1) \
		-DHAVE_EXYNOS_API=1 \
		-DHAVE_AOCEC_API=1 \
		-DHAVE_LINUX_API=1

# upstream derives the python module directory from
# CMAKE_INSTALL_LIBDIR, yielding a multiarch triplet, which is not on
# Debian's sys.path
PY3_DIST = usr/lib/$(DEB_HOST_MULTIARCH)/python3.*/dist-packages

# cmake sets VERSION on both client targets, so each installs as
# <name>-$(version) plus an unversioned symlink to it. Ship just the binary
# under the plain name; nobody types the version.
execute_after_dh_auto_install:
	rm debian/tmp/usr/bin/cec-client debian/tmp/usr/bin/cecc-client
	mv debian/tmp/usr/bin/cec-client-* debian/tmp/usr/bin/cec-client
	mv debian/tmp/usr/bin/cecc-client-* debian/tmp/usr/bin/cecc-client
	mkdir -p debian/tmp/usr/lib/python3/dist-packages
	mv debian/tmp/$(PY3_DIST)/* debian/tmp/usr/lib/python3/dist-packages/
	rmdir debian/tmp/$(PY3_DIST) debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/python3.*
ifneq (,$(BUILD_NODE))
	# node-gyp builds the addon, not cmake's ENABLE_NODE_LIB, which drives npm
	# and would want the network. PKG_CONFIG_SYSROOT_DIR makes pkg-config
	# resolve the headers and library just staged in debian/tmp; the addon
	# links the SONAME so the staging path is not included in the built binaries
	cd src/nodejs && \
		HOME=$(CURDIR)/debian/nodejs-home \
		PKG_CONFIG_SYSROOT_DIR=$(CURDIR)/debian/tmp \
		PKG_CONFIG_PATH=$(CURDIR)/debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/pkgconfig \
		node-gyp rebuild --nodedir=/usr/include/nodejs
	# stage the module tree where Debian's node resolves it
	mkdir -p debian/tmp/$(NODE_MODULE_DIR)/lib \
	         debian/tmp/$(NODE_MODULE_DIR)/build/Release
	cp -a src/nodejs/lib/*.js     debian/tmp/$(NODE_MODULE_DIR)/lib/
	cp -a src/nodejs/index.d.ts   debian/tmp/$(NODE_MODULE_DIR)/
	cp -a src/nodejs/package.json debian/tmp/$(NODE_MODULE_DIR)/
	cp -a src/nodejs/build/Release/cec_native.node \
	                              debian/tmp/$(NODE_MODULE_DIR)/build/Release/
endif

override_dh_installchangelogs:
	dh_installchangelogs debian/changelog.in

# dh_strip never strips libcec.a. It only considers a static library if
# perl's -B calls the file binary, and -B calls a file text when the first
# block is valid UTF-8 containing non-ASCII bytes. libcec.a's ar symbol table
# is a run of big-endian member offsets that happens to decode cleanly as
# UTF-8, so -B says text, the library is skipped, and it ships with full debug
# info (22MB rather than 2.3MB; lintian: unstripped-static-library). Do it by
# hand with the exact flags dh_strip would have used.
STATIC_LIB = debian/libcec-dev/usr/lib/$(DEB_HOST_MULTIARCH)/libcec.a

ifeq (,$(filter nostrip,$(DEB_BUILD_OPTIONS)))
execute_after_dh_strip:
	[ ! -f $(STATIC_LIB) ] || \
	$(DEB_HOST_GNU_TYPE)-strip --strip-debug \
		--remove-section=.comment --remove-section=.note \
		--enable-deterministic-archives \
		-R '.gnu.lto_*' -R '.gnu.debuglto_*' \
		-N __gnu_lto_slim -N __gnu_lto_v1 \
		$(STATIC_LIB)
endif