#!/usr/bin/make -f
#
# $(DEBIAN)/rules for Ubuntu linux
#
# Use this however you want, just give credit where credit is due.
#
# Copyright (c) 2007 Ben Collins <bcollins@ubuntu.com>
#

DEBIAN=$(shell awk -F= '($$1 == "DEBIAN") { print $$2 }' <debian/debian.env)

# dpkg-buildpackage passes options that are incomptatible
# with the kernel build.
unexport CFLAGS
unexport LDFLAGS

export LC_ALL=C
export SHELL=/bin/bash -e

# Where do we find the common configuration.
export DROOT=debian

# Common variables for all architectures
include $(DROOT)/rules.d/0-common-vars.mk

# Pull in some arch specific stuff
-include $(DEBIAN)/rules.d/$(arch).mk

# Pull in some branch specific stuff. Used by LTS backport
# branches to override master branch settings such as do_tools_common.
-include $(DEBIAN)/rules.d/hooks.mk

# Maintainer targets
include $(DROOT)/rules.d/1-maintainer.mk

do_linux_tools=$(sort $(filter-out false,$(do_tools_usbip) $(do_tools_cpupower) $(do_tools_perf) $(do_tools_x86)))
do_cloud_tools=$(sort $(filter-out false,$(do_tools_hyperv)))

# Don't build tools or udebs in a cross compile environment.
ifneq ($(DEB_HOST_ARCH),$(DEB_BUILD_ARCH))
	do_tools=false
	disable_d_i=true
	do_zfs=false
endif

# Stages -- support both DEB_STAGE=stage1 and DEB_BUILD_PROFILE=bootstrap
ifeq ($(DEB_STAGE),stage1)
    DEB_BUILD_PROFILES=stage1
endif
ifneq ($(DEB_BUILD_PROFILE),)
    DEB_BUILD_PROFILES=$(DEB_BUILD_PROFILE)
endif
ifneq ($(filter stage1,$(DEB_BUILD_PROFILES)),)
    do_tools=false
    do_doc_package=false
    do_source_package=false
    do_flavour_image_package=false
    do_flavour_header_package=false
endif

# Being used to build a mainline build -- turn off things which do not work.
ifeq ($(do_mainline_build),true)
	do_extras_package=false
	do_tools=false
	no_dumpfile=1
	do_zfs=false
	skipabi=true
	skipmodule=true
	skipretpoline=true
endif

# Disable tools build and packaging if do_tools != true
ifneq ($(do_tools),true)
	do_linux_tools=
	do_cloud_tools=
	do_tools_common=
endif

ifeq ($(do_zfs),false)
	do_zfs_disable:=$(shell cat $(DROOT)/zfs-modules.ignore >>$(prev_abidir)/../modules.ignore)
endif

# Either tools package needs the common source preparation
do_any_tools=$(sort $(filter-out false,$(do_linux_tools) $(do_cloud_tools)))

# autopkgtest -- rebuild support
#  only build the first flavour on the assumption it is representative
ifneq ($(filter autopkgtest,$(DEB_BUILD_PROFILES)),)
flavours := $(firstword $(flavours))
endif

# Debian Build System targets
binary: binary-indep binary-arch

build: build-arch build-indep

clean: debian/control
	dh_testdir
	dh_testroot
	dh_clean

	# d-i stuff
	rm -rf $(DEBIAN)/d-i-$(arch)
	# Generated on the fly.
	rm -f $(DEBIAN)/d-i/firmware/kernel-image

	# normal build junk
	rm -rf $(DEBIAN)/abi/$(release)-$(revision)
	rm -rf $(builddir)
	rm -f $(stampdir)/stamp-*
	rm -rf $(DEBIAN)/linux-*

	# This gets rid of the d-i packages in control
	cp -f $(DEBIAN)/control.stub $(DROOT)/control
	cp $(DEBIAN)/changelog debian/changelog

	# Install the copyright information.
	cp $(DEBIAN)/copyright debian/copyright

	# Install the retpoline extractor.
	cp $(DROOT)/scripts/retpoline-extract-one scripts/ubuntu-retpoline-extract-one

	# If we have a reconstruct script use it.
	[ -f $(DEBIAN)/reconstruct ] && bash $(DEBIAN)/reconstruct

	# Remove generated intermediate files
	rm -f $(DROOT)/control.stub $(DEBIAN)/control.stub \
		$(DEBIAN)/d-i/kernel-versions

distclean: clean
	rm -rf $(DROOT)/control debian/changelog \
		debian/control debian/control.stub debian/copyright \
		scripts/ubuntu-retpoline-extract-one

# Builds the image, arch headers and debug packages
include $(DROOT)/rules.d/2-binary-arch.mk

# Rules for building the udebs ($(DEBIAN)-installer)
include $(DROOT)/rules.d/5-udebs.mk

# Builds the source, doc and linux-headers indep packages
include $(DROOT)/rules.d/3-binary-indep.mk

# Various checks to be performed on builds
include $(DROOT)/rules.d/4-checks.mk

# Misc stuff
.PHONY: $(DEBIAN)/control.stub
$(DEBIAN)/control.stub: $(DEBIAN)/d-i/kernel-versions.in	\
		$(DROOT)/scripts/control-create		\
		$(DEBIAN)/control.stub.in			\
		$(DEBIAN)/changelog			\
		$(wildcard $(DEBIAN)/control.d/* $(DEBIAN)/sub-flavours/*.vars)
	for i in $(DEBIAN)/d-i/kernel-versions.in $(DEBIAN)/control.stub.in; do	\
	  new=`echo $$i | sed 's/\.in$$//'`;					\
	  cat $$i | sed -e 's/PKGVER/$(release)/g'                              \
	        -e 's/ABINUM/$(abinum)/g'                                       \
		-e 's/SRCPKGNAME/$(src_pkg_name)/g'                             \
		-e 's/=HUMAN=/$(human_arch)/g'                                    \
	  > $$new;								\
	done
	flavours="$(sort $(wildcard $(DEBIAN)/control.d/vars.* $(DEBIAN)/sub-flavours/*.vars))";\
	for i in $$flavours; do							\
	  $(SHELL) $(DROOT)/scripts/control-create $$i |				\
		sed -e 's/PKGVER/$(release)/g'                                  \
		-e 's/ABINUM/$(abinum)/g'                                       \
		-e 's/SRCPKGNAME/$(src_pkg_name)/g'                             \
		-e 's/=HUMAN=/$(human_arch)/g'                                    \
		>> $(DEBIAN)/control.stub;						\
	done

.PHONY: debian/control
debian/control: $(DEBIAN)/control.stub
	rm -rf $(builddir)/modules $(builddir)/firmware			\
		$(builddir)/kernel-versions $(builddir)/package-list	\
		$(builddir)/$(DEBIAN)
	mkdir -p $(builddir)/modules/$(arch)/
	cp $(DEBIAN)/d-i/modules/* $(builddir)/modules/$(arch)/
	mkdir -p $(builddir)/firmware/$(arch)/
	cp $(DEBIAN)/d-i/firmware/* $(builddir)/firmware/$(arch)/
	cp $(DEBIAN)/d-i/package-list $(DEBIAN)/d-i/kernel-versions $(builddir)/
	touch $(builddir)/modules/$(arch)/kernel-image
	# kernel-wedge needs to poke around in $(DEBIAN)/
	ln -nsf $(CURDIR)/debian $(builddir)/debian

	# Some files may need to differ between architectures
	if [ -d $(DEBIAN)/d-i/modules-$(arch) ]; then			\
	    cp $(DEBIAN)/d-i/modules-$(arch)/* \
		$(builddir)/modules/$(arch)/;				\
	fi
	if [ -d $(DEBIAN)/d-i/firmware-$(arch) ]; then			\
	    cp $(DEBIAN)/d-i/firmware-$(arch)/* \
		$(builddir)/firmware/$(arch)/;				\
	fi

	# Remove unwanted stuff for this architecture
	if [ -r "$(DEBIAN)/d-i/exclude-modules.$(arch)" ]; then		\
	    (cat $(DEBIAN)/d-i/exclude-modules.$(arch);			\
	     ls $(builddir)/modules/$(arch)/) | sort | uniq -d |	\
		(cd $(builddir)/modules/$(arch)/; xargs rm -f);		\
	fi
	if [ -r "$(DEBIAN)/d-i/exclude-firmware.$(arch)" ]; then		\
	    (cat $(DEBIAN)/d-i/exclude-firmware.$(arch);			\
	     ls $(builddir)/firmware/$(arch)/) | sort | uniq -d |	\
		(cd $(builddir)/firmware/$(arch)/; xargs rm -f);	\
	fi

	# Per flavour module lists
	flavour_modules=`ls $(DEBIAN)/d-i/modules.$(arch)-* 2>/dev/null`	\
		|| true;						\
	if [ "$$flavour_modules" != "" ]; then				\
	    for flav in $$flavour_modules; do				\
		name=`echo $$flav | sed 's/.*\/modules.$(arch)-//'`;	\
		mkdir $(builddir)/modules/$(arch)-$$name;		\
		(cd $(builddir)/modules/; tar cf - `cat ../$$flav`) |	\
		    (cd $(builddir)/modules/$(arch)-$$name/; tar xf -);	\
		touch $(builddir)/modules/$(arch)-$$name/kernel-image;	\
	    done;							\
	fi
	flavour_firmware=`ls $(DEBIAN)/d-i/firmware.$(arch)-* 2>/dev/null`	\
		|| true;						\
	if [ "$$flavour_firmware" != "" ]; then				\
	    for flav in $$flavour_firmware; do				\
		name=`echo $$flav | sed 's/.*\/firmware.$(arch)-//'`;	\
		mkdir $(builddir)/firmware/$(arch)-$$name;		\
		(cd $(builddir)/firmware/; tar cf - `cat ../$$flav`) |	\
		    (cd $(builddir)/firmware/$(arch)-$$name/; tar xf -);\
		touch $(builddir)/firmware/$(arch)-$$name/kernel-image;	\
	    done;							\
	fi

	# Some files may need to differ between flavours
	flavour_module_dirs=`ls -d $(DEBIAN)/d-i/modules-$(arch)-* 2>/dev/null`\
		|| true;						\
	if [ "$$flavour_module_dirs" ]; then				\
	    for flav in $$flavour_module_dirs; do			\
		name=`echo $$flav | sed 's/.*\/modules-$(arch)-//'`;	\
		[ -d $(builddir)/modules/$(arch)-$$name ] ||		\
		    cp -a $(builddir)/modules/$(arch)			\
			modules/$(arch)-$$name;				\
		cp $$flav/* $(builddir)/modules/$(arch)-$$name/;	\
	    done;							\
	fi
	flavour_firmware_dirs=`ls -d $(DEBIAN)/d-i/firmware-$(arch)-* 2>/dev/null`\
		|| true;						\
	if [ "$$flavour_firmware_dirs" ]; then				\
	    for flav in $$flavour_firmware_dirs; do			\
		name=`echo $$flav | sed 's/.*\/firmware-$(arch)-//'`;	\
		[ -d $(builddir)/firmware/$(arch)-$$name ] ||		\
		    cp -a $(builddir)/firmware/$(arch)			\
			firmware/$(arch)-$$name;			\
		cp $$flav/* $(builddir)/firmware/$(arch)-$$name/;	\
	    done;							\
	fi

	# Remove unwanted stuff for each flavour
	flavour_exclude=`ls $(DEBIAN)/d-i/exclude-modules.$(arch)-* 2>/dev/null`\
		|| true;						\
	if [ "$$flavour_exclude" ]; then				\
	    for flav in $$flavour_exclude; do				\
		name=`echo $$flav | sed 's/.*\/exclude-modules.$(arch)-//'`;\
		[ -d $(builddir)/modules/$(arch)-$$name ] ||		\
		    cp -a $(builddir)/modules/$(arch) 			\
			$(builddir)/modules/$(arch)-$$name;		\
		(cat $$flav;						\
		 ls $(builddir)/modules/$(arch)-$$name) |		\
		 sort |	uniq -d |					\
		    (cd $(builddir)/modules/$(arch)-$$name/;		\
		     xargs rm -f);					\
	    done;							\
	fi
	flavour_exclude=`ls $(DEBIAN)/d-i/exclude-firmware.$(arch)-* 2>/dev/null`\
		|| true;						\
	if [ "$$flavour_exclude" ]; then				\
	    for flav in $$flavour_exclude; do				\
		name=`echo $$flav | sed 's/.*\/exclude-firmware.$(arch)-//'`;\
		[ -d $(builddir)/firmware/$(arch)-$$name ] ||		\
		    cp -a $(builddir)/firmware/$(arch) 			\
			$(builddir)/firmware/$(arch)-$$name;		\
		(cat $$flav;						\
		 ls $(builddir)/firmware/$(arch)-$$name) |		\
		 sort |	uniq -d |					\
		    (cd $(builddir)/firmware/$(arch)-$$name/;		\
		     xargs rm -f);					\
	    done;							\
	fi

	if [ ! -d $(builddir)/modules/$(build_arch) ]; then		\
		mkdir -p $(builddir)/modules/$(build_arch);		\
		cp $(builddir)/modules/$(arch)/*			\
			$(builddir)/modules/$(build_arch);		\
	fi
	if [ ! -d $(builddir)/firmware/$(build_arch) ]; then		\
		mkdir -p $(builddir)/firmware/$(build_arch);		\
		cp $(builddir)/firmware/$(arch)/*			\
			$(builddir)/firmware/$(build_arch);		\
	fi

	echo "# placebo control.stub for kernel-wedge flow change" >debian/control.stub
	cp $(DEBIAN)/control.stub debian/control
	cd $(builddir) && LANG=C kernel-wedge gen-control >> $(CURDIR)/debian/control