#! /usr/bin/make -f

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

# version number of the defaults package
include /usr/share/dpkg/pkg-info.mk

VMAJOR	:= $(shell echo $(DEB_VERSION) | awk -F. '{print $$1}')
VMINOR	:= $(shell echo $(DEB_VERSION) | awk -F. '{print $$2}' | sed -e 's/\([0-9]*\).*/\1/')
REL_EXT	:= $(shell echo $(DEB_VERSION) | sed -e 's/^$(VMAJOR)\.$(VMINOR)//')

# llvm-defaults 0.1 is the first version for 2.7.
REL_NO_27	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.2 is the first version for 2.8.
REL_NO_28	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.7 is the first version for 2.9.
REL_NO_29	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.9 is the first version for 3.0.
REL_NO_30	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.10 is the first version for 3.1.
REL_NO_31	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.16 is the first version for 3.2.
REL_NO_32	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.21 is the first version for 3.3.
REL_NO_33	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.22 is the first version for 3.4.
REL_NO_34	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.24 is the first version for 3.5.
REL_NO_35	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.27 is the first version for 3.6.
REL_NO_36	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults (not in debian) is the first version for 3.7.
REL_NO_37	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.34 is the first version for 3.8.
REL_NO_38	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults (not in debian) is the first version for 3.9.
REL_NO_39	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.37 is the first version for 4.0.
REL_NO_40	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.41 is the first version for 5.0.
REL_NO_50	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.41 is the first version for 6.0.
REL_NO_60	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.44 is the first version for 7.0.
REL_NO_70	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.48 is the first version for 8.0.
REL_NO_80	:= $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.49 is the first version for 9.0.
REL_NO_90   := $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.50 is the first version for 10.
REL_NO_100   := $(shell expr $(VMINOR) - 0)$(REL_EXT)

# llvm-defaults 0.51 is the first version for 11.
REL_NO_110   := $(shell expr $(VMINOR) - 0)$(REL_EXT)

# minimum required version

REQV            := (>= 11~)

CURRENT_VERSION := 11.0


# architecture dependent variables
include /usr/share/dpkg/architecture.mk

# complete version number, including the release
CV_LLVM		:= 1:$(CURRENT_VERSION)-$(REL_NO_110)

distribution := $(shell lsb_release -is)
all_packages   := llvm llvm-runtime llvm-dev clang clang-tools libclang-cpp-dev libclang1 libclang-dev clang-format clang-tidy clangd python3-clang libomp5 libomp-dev libc++1 libc++-dev libc++abi1 libc++abi-dev libllvm-ocaml-dev python-clang
no_packages    :=

EXTRA_SUPPORTED=amd64 arm64 armel armhf i386 mips mipsel mips64el ppc64el kfreebsd-amd64 kfreebsd-i386 s390 s390x sparc alpha hppa m68k powerpcspe ppc64 sh4 sparc64 x32
ifneq (,$(filter $(DEB_HOST_ARCH),$(EXTRA_SUPPORTED)))
    all_packages += lldb liblldb-dev python3-lldb python-lldb
else
    no_packages += lldb liblldb-dev python3-lldb python-lldb
endif

LLD_SUPPORTED=amd64 arm64 armel armhf i386 mips mipsel mips64el ppc64el kfreebsd-amd64 kfreebsd-i386 s390 sparc alpha hppa m68k powerpcspe ppc64 sh4 sparc64 x32
ifneq (,$(filter $(DEB_HOST_ARCH),$(LLD_SUPPORTED)))
    all_packages += lld
else
    no_packages += lld
endif


packages := $(filter-out $(no_packages), $(all_packages))

# derived version number (without release)
V_LLVM  := $(shell echo $(CV_LLVM) | sed 's/^[0-9]*://' | sed 's/-[^-]*$$//')

# number for the package name
PV_LLVM := $(shell echo $(V_LLVM) | awk -F. '{printf "%d", $$1}')

OS_NAME := Linux

ifeq ($(DEB_HOST_ARCH),hurd-i386)
    OS_NAME	:= Hurd
endif

ifneq (,$(filter $(DEB_HOST_ARCH),kfreebsd-i386 kfreebsd-amd64))
    OS_NAME	:= kFreeBSD
endif

README:
	m4 -DPACKAGES="$(packages)" \
	   -DOS_NAME=$(OS_NAME) \
	   -DDEB_ARCH=$(DEB_HOST_ARCH) \
	   -DPV_LLVM=$(PV_LLVM) \
	   debian/README.Debian.m4 > debian/README.Debian.tmp2
	uniq debian/README.Debian.tmp2 > debian/README.Debian.tmp
	rm -f debian/README.Debian.tmp2
	[ -e debian/README.Debian ] \
	  && cmp -s debian/README.Debian debian/README.Debian.tmp \
	  && rm -f debian/README.Debian.tmp && exit 0; \
	  mv debian/README.Debian.tmp debian/README.Debian
.PHONY: README

substvars:
	( \
	  echo 'version:llvm=$(CV_LLVM)'; \
	  echo 'pv:llvm=$(PV_LLVM)'; \
	  echo 'reqv:llvm=$(REQV)'; \
	) > debian/substvars.local
.PHONY: substvars
build: build-arch build-indep
build-arch: build-stamp
build-indep: build-stamp
build-stamp:
	dh_testdir
	touch build-stamp

clean:
	dh_testdir
	rm -f *-stamp
	rm -f debian/substvars.local
	dh_clean

install: build README substvars
	dh_testdir
	dh_prep

	for p in $(packages); do \
	  cp -l debian/substvars.local debian/$$p.substvars; \
	done

	: # llvm
	dh_installdirs -pllvm \
		usr/bin usr/share/man/man1
	for bin in \
		bugpoint llc llvm-ar llvm-as llvm-bcanalyzer llvm-config \
		llvm-cov llvm-diff llvm-dis llvm-dwarfdump llvm-extract \
		llvm-link llvm-mc llvm-nm llvm-objdump \
		llvm-ranlib llvm-rtdyld llvm-size llvm-tblgen llvm-profdata \
		llvm-symbolizer dsymutil llvm-PerfectShuffle llvm-c-test llvm-cat \
		llvm-cfi-verify llvm-cvtres llvm-cxxdump llvm-cxxfilt llvm-dlltool \
		llvm-dwp llvm-exegesis llvm-lib llvm-lto llvm-lto2 llvm-mca llvm-modextract \
		llvm-mt llvm-objcopy llvm-opt-report llvm-pdbutil llvm-rc llvm-readelf \
		llvm-readobj llvm-split llvm-stress llvm-strings llvm-strip llvm-undname \
		llvm-xray sanstats opt \
		; do \
		dh_link -pllvm \
			/usr/lib/llvm-$(PV_LLVM)/bin/$$bin \
			/usr/bin/$$bin ; \
	done
	for bin in \
		yaml2obj obj2yaml verify-uselistorder \
		; do \
		dh_link -pllvm \
			/usr/lib/llvm-$(PV_LLVM)/bin/$$bin \
			/usr/bin/$$bin ; \
	done
# To know if there is a manpage or not
# for f in $L; do if test -f /usr/share/man/man1/$f-7.1.gz; then echo $f; fi; done|tr "\n" " "
	for man in \
		llvm-ranlib llvm-dwarfdump \
		llvm-objdump llvm-rtdyld llvm-size llvm-mc \
		; do \
		dh_link -pllvm \
			/usr/share/man/man1/$$man-$(PV_LLVM).1.gz \
			/usr/share/man/man1/$$man.1.gz ; \
	done

	for man in \
		clang; do \
		dh_link -pclang \
			/usr/share/man/man1/$$man-$(PV_LLVM).1.gz \
			/usr/share/man/man1/$$man.1.gz ; \
	done

	for man in \
		clang-apply-replacements clang-check clang-query \
		scan-build scan-view sancov; do \
		dh_link -pclang-tools \
			/usr/share/man/man1/$$man-$(PV_LLVM).1.gz \
			/usr/share/man/man1/$$man.1.gz ; \
	done

	for man in \
		clang-format clang-format-diff; do \
		dh_link -pclang-format \
			/usr/share/man/man1/$$man-$(PV_LLVM).1.gz \
			/usr/share/man/man1/$$man.1.gz ; \
	done

	for man in \
		clangd; do \
		dh_link -pclangd \
			/usr/share/man/man1/$$man-$(PV_LLVM).1.gz \
			/usr/share/man/man1/$$man.1.gz ; \
	done

	for man in \
		clang-tidy; do \
		dh_link -pclang-tidy \
			/usr/share/man/man1/$$man-$(PV_LLVM).1.gz \
			/usr/share/man/man1/$$man.1.gz ; \
	done

	for man in \
		lldb; do \
		dh_link -plldb \
			/usr/share/man/man1/$$man-$(PV_LLVM).1.gz \
			/usr/share/man/man1/$$man.1.gz ; \
	done

	for man in \
		ld.lld lld; do \
		dh_link -plld \
			/usr/share/man/man1/ld.lld-$(PV_LLVM).1.gz \
			/usr/share/man/man1/$$man.1.gz ; \
	done

	: # llvm-runtime
	dh_installdirs -pllvm-runtime \
		usr/bin usr/share/man/man1
	dh_link -pllvm-runtime \
		/usr/lib/llvm-$(PV_LLVM)/bin/lli /usr/bin/lli
	dh_link -pllvm-runtime \
	  /usr/share/man/man1/lli-$(PV_LLVM).1.gz /usr/share/man/man1/lli.1.gz

	: # llvm-dev
	dh_installdirs -pllvm-dev \
		/usr/include \
		/usr/share/vim/addons/syntax/ \
		/usr/lib
	dh_link -pllvm-dev \
		/usr/lib/llvm-$(PV_LLVM)/include/llvm /usr/include/llvm \
		/usr/lib/llvm-$(PV_LLVM)/include/llvm-c /usr/include/llvm-c \
		/usr/share/vim/addons/syntax/llvm-$(PV_LLVM).vim /usr/share/vim/addons/syntax/llvm.vim \
		/usr/share/vim/addons/syntax/tablegen-$(PV_LLVM).vim /usr/share/vim/addons/syntax/tablegen.vim \
		/usr/share/emacs/site-lisp/llvm-$(PV_LLVM) /usr/share/emacs/site-lisp/llvm

	for lib in \
		libLTO.so LLVMgold.so; do \
		dh_link -pllvm-dev \
		/usr/lib/llvm-$(PV_LLVM)/lib/$$lib /usr/lib/$$lib; \
	done

	: # liblldb-dev
	dh_installdirs -pliblldb-dev \
		/usr/include \
		/usr/lib
	dh_link -pliblldb-dev \
		/usr/lib/llvm-$(PV_LLVM)/include/lldb /usr/include/lldb \

	for lib in \
		liblldb.so; do \
		dh_link -pliblldb-dev \
		/usr/lib/llvm-$(PV_LLVM)/lib/$$lib /usr/lib/$$lib; \
	done


	: libllvm-ocaml-dev
	dh_installdirs -plibllvm-ocaml-dev \
	 	/usr/lib/ocaml/METAS
	dh_link -plibllvm-ocaml-dev \
	 	/usr/lib/ocaml/META.llvm /usr/lib/ocaml/METAS/META.llvm

#  clang

	dh_installdirs -pclang \
		usr/bin usr/share/man/man1
	for bin in \
		clang clang++ \
		; do \
		dh_link -pclang \
			/usr/lib/llvm-$(PV_LLVM)/bin/$$bin \
			/usr/bin/$$bin ; \
	done

# clang-tools
	dh_installdirs -pclang-tools \
		usr/bin usr/share/man/man1
	for bin in \
		clang-check c-index-test \
		clang-apply-replacements clang-query sancov; do \
		dh_link -pclang-tools \
			/usr/lib/llvm-$(PV_LLVM)/bin/$$bin \
			/usr/bin/$$bin ; \
	done

# clang-tidy
	for bin in \
		clang-tidy \
		; do \
		dh_link -pclang-tidy \
			/usr/lib/llvm-$(PV_LLVM)/bin/$$bin \
			/usr/bin/$$bin ; \
	done
	dh_link -pclang-tidy \
		/usr/bin/run-clang-tidy-$(PV_LLVM).py  \
		/usr/bin/run-clang-tidy
	dh_link -pclang-tidy \
		/usr/bin/clang-tidy-diff-$(PV_LLVM).py  \
		/usr/bin/clang-tidy-diff

#  clang-format
	dh_link -pclang-format \
		/usr/bin/clang-format-$(PV_LLVM) \
		/usr/bin/clang-format
	dh_link -pclang-format \
		/usr/bin/clang-format-diff-$(PV_LLVM) \
		/usr/bin/clang-format-diff
	dh_link -pclang-format \
		/usr/bin/git-clang-format-$(PV_LLVM) \
		/usr/bin/git-clang-format
	dh_link -pclang-format \
		/usr/share/vim/addons/syntax/clang-format-$(PV_LLVM).py \
		/usr/share/vim/addons/syntax/clang-format.py
	dh_link -pclang-format \
		/usr/share/emacs/site-lisp/clang-format-$(PV_LLVM) \
		/usr/share/emacs/site-lisp/clang-format

#  clangd
	dh_link -pclangd \
			/usr/bin/clangd-$(PV_LLVM) \
			/usr/bin/clangd

#  clang-tools
	dh_link -pclang-tools \
			/usr/bin/scan-build-$(PV_LLVM) \
			/usr/bin/scan-build
	dh_link -pclang-tools \
			/usr/bin/scan-view-$(PV_LLVM) \
			/usr/bin/scan-view

#  clang
	dh_link -pclang \
			/usr/bin/asan_symbolize-$(PV_LLVM) \
			/usr/bin/asan_symbolize

#  lldb
	dh_link -plldb \
			/usr/bin/lldb-$(PV_LLVM) \
			/usr/bin/lldb
	dh_link -plldb \
			/usr/bin/lldb-argdumper-$(PV_LLVM) \
			/usr/bin/lldb-argdumper
	dh_link -plldb \
			/usr/bin/lldb-server-$(PV_LLVM) \
			/usr/bin/lldb-server

#  lld
	dh_link -plld \
			/usr/bin/lld-$(PV_LLVM) \
			/usr/bin/lld
	dh_link -plld \
			/usr/bin/ld.lld-$(PV_LLVM) \
			/usr/bin/ld.lld
	dh_link -plld \
			/usr/bin/wasm-ld-$(PV_LLVM) \
			/usr/bin/wasm-ld


nopkgs := $(foreach p, $(no_packages),-N$(p))

binary-indep: build install
	# nothing to do

binary-arch: build install
	dh_testdir

	dh_lintian
	dh_installchangelogs -a $(nopkgs)
	dh_installdocs -a $(nopkgs) debian/README.Debian

	dh_compress -a $(nopkgs) -X README.Debian
	dh_fixperms -a $(nopkgs)
	dh_installdeb -a $(nopkgs)

	for p in $(packages) ; do \
	  dh_gencontrol -p$$p -- -v$(CV_LLVM) ; \
	done

	dh_md5sums -a $(nopkgs)
	dh_builddeb -a $(nopkgs)

binary: binary-indep binary-arch
.PHONY: build clean binary-indep binary-arch binary install