#!/usr/bin/make -f

# resolve DEB_VERSION_UPSTREAM DEB_VERSION_UPSTREAM_REVISION DEB_DISTRIBUTION
include /usr/share/dpkg/pkg-info.mk

# resolve DEB_BUILD_ARCH_OS DEB_HOST_MULTIARCH
include /usr/share/dpkg/architecture.mk

# generate documentation unless nodoc requested
CHANGELOGS_stem = ChangeLogs/ChangeLog-$(firstword $(subst ~, ,$(DEB_VERSION_UPSTREAM)))
DOCS_stem = README SECURITY
ifeq (,$(filter nodoc,$(DEB_BUILD_OPTIONS)))
CHANGELOGS = $(CHANGELOGS_stem:=.html) $(CHANGELOGS_stem:=.txt)
DOCS = $(DOCS_stem:=.html) $(DOCS_stem:=.txt)
MANPAGES = debian/build/dh_asterisk.1
endif

# enable hardening compiler options
# see <https://wiki.debian.org/Hardening#Using_Hardening_Options>
export DEB_BUILD_MAINT_OPTIONS = hardening=+all
# revive upstream optimization flags unless DEB_BUILD_OPTIONS=noopt
# code allegedly fails partial-inlining optimization with GCC >= 8.2.1,
# see <Makefile.rules> and upstream git commit 449dff9
ifeq (,$(filter noopt,$(DEB_BUILD_OPTIONS)))
DEB_CFLAGS_MAINT_STRIP = -O2
DEB_CFLAGS_MAINT_APPEND = -O3 -fno-partial-inlining
endif
include /usr/share/dpkg/buildflags.mk

# Pass CPPFLAGS in the CFLAGS as otherwise the build system will
# ignore them.
CFLAGS += $(CPPFLAGS)

LDFLAGS += -Wl,--as-needed

# Sanity check for a stable release:
SAVED_ABI_HASH = 1fb7f5c06d7a2052e38d021b3d8ca151

# resolve PJPROJECT version
PJMAJ = $(shell grep -Po '^export PJ_VERSION_MAJOR\s+:=\s+\K\d+' Xpjproject/version.mak)
PJMIN = $(shell grep -Po '^export PJ_VERSION_MINOR\s+:=\s+\K\d+' Xpjproject/version.mak)
PJREV = $(shell grep -Po '^export PJ_VERSION_REV\s+:=\s+\K\d+' Xpjproject/version.mak)
PJVER := $(PJMAJ)$(if $(PJMIN),.$(PJMIN)$(if $(PJREV),.$(PJREV)))

PJDIR = debian/build-pjproject

# don't let asterisk mess with build flags
BUILDFLAGS += AST_FORTIFY_SOURCE= DEBUG= OPTIMIZE=

# show full gcc arguments unless DEB_BUILD_OPTIONS=terse
ifeq (,$(filter terse,$(DEB_BUILD_OPTIONS)))
BUILDFLAGS += NOISY_BUILD=yes
endif

BUILDFLAGS += ASTDATADIR=/usr/share/asterisk ASTVARRUNDIR=/var/run/asterisk

ifeq (,$(findstring nostrip,$(DEB_BUILD_OPTIONS)))
	INSTALL_PROGRAM += -s
endif

ADDONS_ENABLE = app_macro app_voicemail_imap app_voicemail_odbc
ADDONS_ENABLE += res_config_mysql
ADDONS_ENABLE += chan_mobile chan_ooh323 chan_sip
ADDONS_ENABLE += codec_opus_open_source
ADDONS_ENABLE += aelparse format_mp3 smsq TEST_FRAMEWORK
ADDONS_DISABLE = BUILD_NATIVE
ifneq (,$(findstring debug,$(DEB_BUILD_OPTIONS)))
ADDONS_ENABLE += BETTER_BACKTRACES DEBUG_THREADS
endif

# make sure we have 'fetch' . We need to have either wget or fetch
# on the system. However it is generally not a good idea to actually
# get remote tarballs at build time. So if neither wget nor fetch
# happen to be installed, the configure script will find a dummy
# fetch script that always returns an error.
FETCH_ENV = PATH=$$PATH:$(CURDIR)/debian/dummyprogs

# resolve if release is experimental
EXP_RELEASE = $(filter experimental% UNRELEASED,$(DEB_DISTRIBUTION))

export deb_systemdsystemunitdir = $(shell pkg-config --variable=systemdsystemunitdir systemd | sed s,^/,,)

%:
	dh $@

%.html: %.md
	cmark-gfm $< > $@

%.txt: %.md
	cmark-gfm --to plaintext $< > $@

override_dh_autoreconf:
	if [ ! -r configure.debian_sav ]; then cp -a configure configure.debian_sav; fi
	[ -f .version.debian_sav ] || cp -a .version .version.debian_sav
	echo $(DEB_VERSION_UPSTREAM_REVISION) > .version
	dh_autoreconf -- ./bootstrap.sh

execute_before_dh_auto_configure:
	chmod 755 debian/dummyprogs/fetch
	# create DSFG-free version of pjproject source
	# as upstream build expects it
	mkdir --parents $(PJDIR)
	rm -f $(PJDIR)/pjproject-${PJVER}
	ln --symbolic ../../Xpjproject $(PJDIR)/pjproject-${PJVER}
	( cd $(PJDIR) && tar --create pjproject-${PJVER}/* ) \
		| bzip2 --fast > $(PJDIR)/pjproject-${PJVER}.tar.bz2
	cp third-party/pjproject/pjproject-${PJVER}.tar.bz2.md5 third-party/pjproject/pjproject-${PJVER}.tar.bz2.md5.debian_sav
	( cd $(PJDIR) && md5sum pjproject-${PJVER}.tar.bz2 ) > third-party/pjproject/pjproject-${PJVER}.tar.bz2.md5

	cp --force --recursive --target-directory=. Xamr/codecs Xamr/include Xamr/res

	rm --force --recursive addons/mp3
	mkdir addons/mp3
	cp --force --target-directory=addons/mp3 Xmp3/*

	cp --force --recursive --target-directory=. Xopus/codecs Xopus/formats

override_dh_auto_configure:
	TMPDIR="$(CURDIR)/$(PJDIR)" $(FETCH_ENV) dh_auto_configure -- \
		--disable-asteriskssl \
		--with-gsm \
		--with-imap=system \
		--without-pwlib \
		$(if $(EXP_RELEASE),,--without-sdl) \
		$(if $(findstring debug,$(DEB_BUILD_OPTIONS)),--enable-dev-mode) \
		|| { cat config.log; exit 1; }

#		--with-cap \

execute_before_dh_auto_build:
	$(MAKE) menuselect.makeopts BUILD_CFLAGS="$(CFLAGS)" BUILD_LDFLAGS="$(LDFLAGS)"
	for module in $(ADDONS_ENABLE); do menuselect/menuselect --enable $$module menuselect.makeopts; done
	for module in $(ADDONS_DISABLE); do menuselect/menuselect --disable $$module menuselect.makeopts; done

override_dh_auto_build:
	$(FETCH_ENV) dh_auto_build -- $(BUILDFLAGS)

execute_after_dh_auto_build: $(DOCS) $(CHANGELOGS) $(MANPAGES)
	# Sanity check: don't break the ABI for modules:
	@abi_hash=$$(awk -F'"' '/AST_BUILDOPT_SUM/ {print $$2}' \
	  include/asterisk/buildopts.h); \
	  if [ "$$abi_hash" != "$(SAVED_ABI_HASH)" ]; then \
	    echo "Debian packaging problem: ABI checksum changed."; \
	    echo "  Was: $(SAVED_ABI_HASH)"; \
	    echo "  Now: $$abi_hash"; \
	    echo "Check include/asterisk/buildopts.h"; \
	    [ -n "$(EXP_RELEASE)" ] || exit 1; \
	  fi

SND_FILE=asterisk-core-sounds-en-gsm-1.4.20.tar.gz
execute_before_dh_clean:
	[ ! -r sounds/$(SND_FILE) ] || mv sounds/$($SND_FILE) debian/
	GREP=grep AWK=awk $(MAKE) distclean
	[ ! -r debian/$(SND_FILE) ] || mv debian/$(SND_FILE) sounds/

	[ ! -f .version.debian_sav ] || mv .version.debian_sav .version
	[ ! -f configure.debian_sav ] || mv configure.debian_sav configure
	[ ! -f third-party/pjproject/pjproject-${PJVER}.tar.bz2.md5.debian_sav ] \
	  || mv third-party/pjproject/pjproject-${PJVER}.tar.bz2.md5.debian_sav \
	  third-party/pjproject/pjproject-${PJVER}.tar.bz2.md5

override_dh_gencontrol:
	AST_BUILDOPT_SUM=$$(grep AST_BUILDOPT_SUM include/asterisk/buildopts.h  \
		| sed -e 's/.\+ "\(.\+\)\"/\1/g'); \
		dh_gencontrol -- -Vasterisk:ABI=$$AST_BUILDOPT_SUM

REMOVED_PROTO_CONFS = dundi mgcp skinny unistim
REMOVED_PROTO_FILES = $(REMOVED_PROTO_CONFS:%=debian/tmp/etc/asterisk/%.conf)
SUBPACKS_EXTRA = ooh323 mysql mp3
ifeq (linux,$(DEB_BUILD_ARCH_OS))
SUBPACKS_EXTRA += dahdi mobile tests
endif
SUBPACKS_EXTRA_DIRS = $(SUBPACKS_EXTRA:%=debian/asterisk-%)
SUBPACKS_EXTRA_DIRS_MOD = $(SUBPACKS_EXTRA_DIRS:%=%/usr/lib/$(DEB_HOST_MULTIARCH)/asterisk/modules)

override_dh_auto_install:
	$(FETCH_ENV) dh_auto_install -- $(BUILDFLAGS) -j1 config samples install-headers

execute_after_dh_auto_install:
	cp -a configs debian/tmp/usr/share/asterisk/conf
	$(RM) -f $(REMOVED_PROTO_FILES)
	mkdir -p debian/tmp/usr/bin/
	mkdir -p debian/tmp/usr/share/man/man1
	mkdir -p debian/tmp/usr/share/dahdi/span_config.d
	cp -a debian/asterisk-config-custom debian/tmp/usr/bin/
	cp -a debian/asterisk-config-custom.1 debian/tmp/usr/share/man/man1/
	cp -a debian/50-asterisk debian/tmp/usr/share/dahdi/span_config.d/
	mkdir -p debian/tmp/$(deb_systemdsystemunitdir)
	test "$(deb_systemdsystemunitdir)" != "lib/systemd/system" && mv debian/tmp/lib/systemd/system/* debian/tmp/$(deb_systemdsystemunitdir)/ || true
	rmdir --ignore-fail-on-non-empty --parents debian/tmp/lib/systemd/system
	$(RM) -f debian/tmp/usr/sbin/conf2ael
	$(RM) -f debian/tmp/usr/sbin/muted
	$(RM) -f debian/tmp/usr/sbin/streamplayer
	$(RM) -f debian/tmp/usr/sbin/stereorize
	$(RM) -f debian/tmp/usr/sbin/hashtest*
	$(RM) -f debian/tmp/usr/sbin/refcounter

execute_after_dh_install-arch:
	extra_packs=$$(find $(SUBPACKS_EXTRA_DIRS_MOD) -name '*.so' -printf '%f\n');\
	  cd debian/asterisk-modules/usr/lib/$(DEB_HOST_MULTIARCH)/asterisk/modules \
	  && rm -f $$extra_packs

override_dh_installdocs:
	dh_installdocs --all -- $(DOCS)

override_dh_installchangelogs:
	dh_installchangelogs -- $(CHANGELOGS)

execute_after_dh_fixperms:
	# should follow dh_fixperms; asterisk configurations may contain
	# sensitive information, such as passwords
	if [ -d debian/asterisk-config ]; then \
		chmod o-rwx debian/asterisk-config/etc/asterisk/*; \
		chmod o+rx  debian/asterisk-config/etc/asterisk/manager.d; \
	fi

# build manpages
debian/build/dh_asterisk.1: debian/build/%.1: debian/debhelper/dh_asterisk
	mkdir --parents debian/build
	pod2man --center="Asterisk packaging helper tools" \
		--release="asterisk $(DEB_VERSION_UPSTREAM_REVISION)" \
		$< $@