#!/usr/bin/make -f
# debian/rules for Free Pascal

DEB_DH_BUILDDEB_ARGS := -- -Z bzip2
export DH_ALWAYS_EXCLUDE := COPYING:LICENSE
export LANG:=C

# Documentation type to use pdf/html
ifeq (${DEBDOCTYPE},)
DOCTYPE=html
# HTML Converter l2h/4ht/hevea or html for (default)
CONVERTER=hevea
else
DOCTYPE=${DEBDOCTYPE}
CONVERTER=${DOCTYPE}
endif

# Detect name of new compiler, take care that debian uses amd64 instead of x86_64
CPU_SOURCE=$(subst amd64,x86_64,$(shell dpkg-architecture -qDEB_BUILD_ARCH))
CPU_TARGET=$(subst amd64,x86_64,$(shell dpkg-architecture -qDEB_HOST_ARCH))

ifeq ($(CPU_TARGET),m68k)
PPSUF=68k
endif
ifeq ($(CPU_TARGET),i386)
PPSUF=386
endif
ifeq ($(CPU_TARGET),x86_64)
PPSUF=x64
endif
ifeq ($(CPU_TARGET),powerpc)
PPSUF=ppc
endif
ifeq ($(CPU_TARGET),alpha)
PPSUF=axp
endif
ifeq ($(CPU_TARGET),arm)
PPSUF=arm
endif
ifeq ($(CPU_TARGET),sparc)
PPSUF=sparc
endif

ifneq ($(CPU_SOURCE),$(CPU_TARGET))
PPPRE=ppcross
else
PPPRE=ppc
endif

PPNEW=$(PPPRE)$(PPSUF)

FPCTARGET=$(CPU_TARGET)-linux

# Reset FPC and FPCDIR if it was set
FPC=
FPCDIR=
# Get version information from changelog file
DEB_VERSION:=$(shell dpkg-parsechangelog | egrep '^Version:' | cut -f 2 -d ' ')
DEB_UPSTREAM_VERSION:=$(shell echo $(DEB_VERSION) | cut -f 1 -d -)
DEB_UPSTREAM_MAIN_VERSION:=$(shell echo ${DEB_UPSTREAM_VERSION} | sed -e 's/^\([0-9\.]*\).*/\1/')
# Get directories
CURDIR:=$(shell pwd)
BUILD_DIR=$(CURDIR)/debian/build
INSTALL_DIR=$(CURDIR)/debian/tmp
DOC_DIR=${INSTALL_DIR}/usr/share/doc
SRC_DIR=$(INSTALL_DIR)/usr/share/fpcsrc/${DEB_UPSTREAM_MAIN_VERSION}
EXAMPLE_TEMP=${INSTALL_DIR}/usr/share/doc/fpc-${DEB_UPSTREAM_MAIN_VERSION}
# Get utils
ifndef MKDIR
MKDIR=mkdir -p
endif
ifndef CP
CP=cp -Rfpl
endif
RM:=rm -rf
# Get fpcmake from path if none is specified.
ifndef FPCMAKE
FPCMAKE=fpcmake
endif
NEWPP=$(CURDIR)/fpcsrc/compiler/$(PPNEW)
NEWFPDOC=$(CURDIR)/fpcsrc/utils/fpdoc/fpdoc
#If not cross compiling, then use new generated fpcmake utility.
ifeq (${PPPRE},)
NEWFPCMAKE=$(CURDIR)/fpcsrc/utils/fpcm/fpcmake
else
NEWFPCMAKE=${FPCMAKE}
endif
# Set default compilation options
BUILDOPTS=PP=$(NEWPP)
ifdef CROSSOPT
BUILDOPTS+= CROSSOPT=${CROSSOPT}
endif
INSTALLOPTS=INSTALL_PREFIX=$(INSTALL_DIR)/usr PP=$(NEWPP) FPCMAKE=$(NEWFPCMAKE)

export GDBLIBDIR=/usr/lib

# Configure patch system
export QUILT_PATCHES=debian/patches

#export DH_VERBOSE=1

###################
# Clean
#

clean: patch configure clean-patched unpatch
	${RM} build-arch-stamp install-arch-stamp arrange-arch-stamp configure-stamp
	${RM} build-doc-stamp install-doc-stamp
	${RM} build-indep-stamp install-indep-stamp
	${RM} debian-files-stamp
	${RM} debian/files debian/docs debian/dirs debian/*.files debian/*.docs debian/*.examples debian/*.postinst debian/*.postrm
	${RM} .pc
	${RM} debian/fpc-depends.1
	# Remove auto-generated version file.
	${RM} fpcsrc/compiler/version.inc
	# Remove auto-generated make files.
	find -name Makefile.fpc -execdir 'sh' '-c' '${RM} $$(basename {} .fpc)' ';'
	dh_clean
clean-patched:
	@echo "--- Cleaning"
	dh_testdir
	dh_testroot
	$(MAKE) -C fpcsrc compiler_distclean
	$(MAKE) -C fpcsrc rtl_distclean
	$(MAKE) -C fpcsrc packages_distclean
	$(MAKE) -C fpcsrc ide_distclean
	$(MAKE) -C fpcsrc utils_distclean
	$(MAKE) -C fpcdocs clean
	find '(' -name '*.a' -or -name '*.o' -or -name '*.so' -or -name '*.ppu' ')' -exec ${RM} '{}' ';'
	dh_prep

patch: patch-stamp

patch-stamp:
	test ! -s ${QUILT_PATCHES}/series || quilt push -a
	touch patch-stamp

unpatch:
	test ! -s ${QUILT_PATCHES}/series || quilt pop -a
	rm -rf patch-stamp debian/patched

###################
# Debian files
#

debian-files: patch debian-files-stamp
debian-files-stamp:
	@echo "--- Creating/fixing *.install files"
	/bin/bash debian/fixdeb debian $(FPCTARGET) $(PPNEW)
	touch debian-files-stamp

###################
# Arch packages
#

configure: configure-stamp
configure-stamp:
	dh_testdir
	# Remove auto-generated make files.
	find -name Makefile.fpc -execdir 'sh' '-c' '${RM} $$(basename {} .fpc)' ';'
	# Regenrate make files using fpcmake.
	${FPCMAKE} -r -Tall */Makefile.fpc
	# Remove auto-generated version file.
	${RM} fpcsrc/compiler/version.inc
	# Add version.inc:
	echo \'$(DEB_VERSION)\' > fpcsrc/compiler/version.inc
	touch configure-stamp

build-arch: debian-files configure build-arch-stamp
build-arch-stamp:
	@echo "--- Building"
	dh_testdir
# First make a new Compiler and RTL using a make cycle
	$(MAKE) -C fpcsrc compiler_cycle
	$(MAKE) -C fpcsrc rtl_clean rtl_smart $(BUILDOPTS)
	$(MAKE) -C fpcsrc packages_smart $(BUILDOPTS)
	$(MAKE) -C fpcsrc ide_all $(BUILDOPTS)
	$(MAKE) -C fpcsrc utils_all $(BUILDOPTS)
	touch build-arch-stamp

install-arch: build-arch install-arch-stamp
install-arch-stamp:
	@echo "--- Installing"
	dh_testdir
	dh_testroot
# Specify the compiler to use so installing will use the correct versioned dir
	$(MAKE) -C fpcsrc compiler_distinstall $(INSTALLOPTS)
	$(MAKE) -C fpcsrc rtl_distinstall $(INSTALLOPTS)
	$(MAKE) -C fpcsrc packages_distinstall $(INSTALLOPTS)
	$(MAKE) -C fpcsrc ide_distinstall $(INSTALLOPTS) INSTALL_DOCDIR=$(DOC_DIR)/fp-ide
	$(MAKE) -C fpcsrc utils_distinstall $(INSTALLOPTS)
# Copy examples to the correct doc dir
	/bin/bash debian/moveexamples $(EXAMPLE_TEMP) $(DOC_DIR)
# Install man pages
	$(MAKE) -C install/man installman $(INSTALLOPTS) INSTALL_PREFIX=$(INSTALL_DIR)/usr/share
# Install RTL demos
	$(MAKE) -C demo sourceinstall $(INSTALLOPTS) INSTALL_SOURCEDIR=$(DOC_DIR)/fp-compiler
# Install whatsnew and readme
	$(MAKE) -C install/doc installdoc $(INSTALLOPTS) INSTALL_DOCDIR=$(DOC_DIR)/fp-compiler
# Create fpc.cfg which is included as conffile
	/bin/bash fpcsrc/compiler/utils/samplecfg \
		/usr/lib/fpc/${DEB_UPSTREAM_VERSION} ${INSTALL_DIR}/etc
	install -D debian/fpc-depends debian/tmp/usr/bin/
	set -x; cd debian/overrides ; for PACKAGE in * ; do \
	  install -m644 -D $$PACKAGE                             \
	    ../$$PACKAGE/usr/share/lintian/overrides/$$PACKAGE ; \
	done
	touch install-arch-stamp

arrange-arch: install-arch arrange-arch-stamp
arrange-arch-stamp:
	dh_testdir
	dh_testroot
	dh_install -s --sourcedir=debian/tmp --list-missing
	touch arrange-arch-stamp

build-indep: patch
install-indep:
	touch install-indep-stamp

###################
# Documentation
#

build-doc: patch debian-files build-doc-stamp
build-doc-stamp:
	@echo "--- Building Documentation"
	dh_testdir
	${MKDIR} fpcsrc/compiler/utils/units/${FPCTARGET}
	$(MAKE) -C fpcdocs $(CONVERTER)
	touch build-doc-stamp

install-doc: build-doc install-doc-stamp
install-doc-stamp:
	@echo "--- Installing Documentation"
	dh_testdir
	dh_testroot
	${MAKE} -C fpcdocs ${DOCTYPE}install INSTALL_PREFIX=${INSTALL_DIR}/usr INSTALL_DOCDIR=${DOC_DIR}/fp-docs/${DEB_UPSTREAM_MAIN_VERSION}
	touch install-doc-stamp

###################
# Source
#

install-source: install-source-stamp
install-source-stamp: 
	@echo "--- Cleaning the tree and copying the source code"
	dh_testdir
	dh_testroot
	${MKDIR} ${SRC_DIR}
	${CP} -t ${SRC_DIR} \
	$(CURDIR)/fpcsrc/compiler \
	$(CURDIR)/fpcsrc/packages \
	$(CURDIR)/fpcsrc/rtl
	touch install-source-stamp

###################
# Generic
#

build: build-arch build-indep
install: install-arch install-indep
binary: binary-arch binary-indep


###################
# Deb building
#

binary-indep: clean-patched build-doc install-doc install-source debian-files
	@echo "--- Building: arch-indep packages"
	dh_testdir
	dh_testroot
	dh_installdocs -i -X.in
	dh_installchangelogs -i
	dh_install -i --sourcedir=debian/tmp --list-missing
	find debian/fpc-source/usr/share/fpcsrc/ -type f \
	  -not -regex '.*\.\(fpc\|inc\|pas\|pp\)' -delete
	find debian/fpc-source/usr/share/fpcsrc/ -type d \
	  -empty -delete
	dh_compress -i -X.pdf
	dh_fixperms -i
	dh_installdeb -i
	dh_gencontrol -i
	dh_md5sums -i
	dh_builddeb -i $(DEB_DH_BUILDDEB_ARGS)

binary-arch: arrange-arch
	@echo "--- Building: arch packages"
	dh_testdir
	dh_testroot
	dh_link
	dh_installdocs -a
	dh_installchangelogs -a
	dh_installexamples -a
	pod2man -c 'Free pascal for Debian GNU/Linux' \
	  debian/fpc-depends > debian/fpc-depends.1
	dh_installman -s
	dh_strip -s
	dh_compress -a
	dh_fixperms -a
	dh_installdeb -s
	dh_shlibdeps -s
	dh_gencontrol -s
	dh_md5sums -s
	dh_builddeb -s $(DEB_DH_BUILDDEB_ARGS)

.PHONY: build clean binary binary-arch \
	binary-indep debian-files build-arch \
	install install-indep install-arch \
	configure

get-orig-source:
	-uscan --upstream-version=0 --rename