#!/usr/bin/make -f
# -*- makefile -*-

# Uncomment this to turn on verbose mode.
export DH_VERBOSE=1

# -pie only for static mode
export DEB_BUILD_MAINT_OPTIONS=hardening=+all,-pie

# because copy_headers.sh have hardcoded path to build/include_directories.txt
BUILDDIR = build
CURDIR = $(shell pwd)
DESTDIR = $(CURDIR)/debian/tmp

DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)

#TODO: why it not working? (maybe works in debhelper 10+)
#ifndef THREADS_COUNT
#    THREADS_COUNT:=$(shell nproc || grep -c ^processor /proc/cpuinfo)
#endif
#DEB_BUILD_OPTIONS+=parallel=$(THREADS_COUNT)

ifndef ENABLE_TESTS
    CMAKE_FLAGS += -DENABLE_TESTS=0
endif

#DEB_CLANG ?= $(shell which clang-6.0 || which clang-5.0 || which clang-4.0 || which clang || which clang-3.9 || which clang-3.8)

#DEB_CC ?= gcc-7
#DEB_CXX ?= g++-7

ifdef DEB_CXX
    DEB_BUILD_GNU_TYPE := $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
    DEB_HOST_GNU_TYPE  := $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
ifeq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
        CC := $(DEB_CC)
        CXX := $(DEB_CXX)
else
        CC := $(DEB_HOST_GNU_TYPE)-$(DEB_CC)
        CXX := $(DEB_HOST_GNU_TYPE)-$(DEB_CXX)
endif
endif

CMAKE_FLAGS += -DCMAKE_CXX_COMPILER=`which $(CXX)` -DCMAKE_C_COMPILER=`which $(CC)`

NINJA=$(shell which ninja)
ifneq ($(NINJA),)
    CMAKE_FLAGS += -GNinja
    export MAKE=$(NINJA)
endif

ifndef DH_VERBOSE
    CMAKE_FLAGS += -DCMAKE_VERBOSE_MAKEFILE=0
endif

%:
	dh $@ --parallel --buildsystem=cmake --builddirectory=$(BUILDDIR)

override_dh_auto_configure:
	dh_auto_configure -- $(CMAKE_FLAGS)

override_dh_auto_test:
	#TODO, use ENABLE_TESTS=1
	#./debian/tests_wrapper.sh

override_dh_clean:
	rm -rf $(BUILDDIR)
	rm -rf $(DESTDIR)
	rm -rf debian/copyright debian/clickhouse-client.docs debian/clickhouse-common-static.docs
	dh_clean

override_dh_strip:
	dh_strip -pclickhouse-common-static --dbg-package=clickhouse-common-dbg

override_dh_install:
	# Making docs
	cp LICENSE debian/copyright

	ln -sf clickhouse-server.docs debian/clickhouse-client.docs
	ln -sf clickhouse-server.docs debian/clickhouse-common-static.docs

	mkdir -p $(DESTDIR)/etc/security/limits.d
	cp debian/clickhouse.limits $(DESTDIR)/etc/security/limits.d/clickhouse.conf

	# systemd compatibility
	mkdir -p $(DESTDIR)/etc/systemd/system/
	cp debian/clickhouse-server.service $(DESTDIR)/etc/systemd/system/

	# In case building clickhouse-server, adding to package binary of clang, ld and header files - for dynamic compilation.
	mkdir -p $(DESTDIR)/usr/share/clickhouse/headers

#	CLANG=$(DEB_CLANG) ./copy_headers.sh . $(DESTDIR)/usr/share/clickhouse/headers
	CLANG=$(DESTDIR)/usr/bin/clickhouse-clang ./copy_headers.sh . $(DESTDIR)/usr/share/clickhouse/headers

	# fake metrika files when private dir is empty
	mkdir -p $(DESTDIR)/etc/clickhouse-server/metrika
	touch $(DESTDIR)/etc/clickhouse-server/metrika/config.xml
	touch $(DESTDIR)/etc/clickhouse-server/metrika/users.xml

	dh_install --list-missing --sourcedir=$(DESTDIR)

override_dh_auto_install:
	env DESTDIR=$(DESTDIR) $(MAKE) -C $(BUILDDIR) install

override_dh_shlibdeps:
	true # We depend only on libc and dh_shlibdeps gives us wrong (too strict) dependency.

override_dh_builddeb:
	dh_builddeb -- -Z gzip # Older systems don't have "xz", so use "gzip" instead.