#!/usr/bin/make -f

include /usr/share/dpkg/pkg-info.mk

package=cpio

CFLAGS = -Wall -g
INSTALL = install
INSTALL_FILE    = $(INSTALL) -p    -o root -g root  -m  644
INSTALL_PROGRAM = $(INSTALL) -p    -o root -g root  -m  755
INSTALL_SCRIPT  = $(INSTALL) -p    -o root -g root  -m  755
INSTALL_DIR     = $(INSTALL) -p -d -o root -g root  -m  755

DEB_HOST_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
ifneq ($(DEB_HOST_GNU_TYPE),$(DEB_BUILD_GNU_TYPE))
CROSS= --build $(DEB_BUILD_GNU_TYPE) --host $(DEB_HOST_GNU_TYPE)
STRIP = $(DEB_HOST_GNU_TYPE)-strip
else
CROSS= --build $(DEB_BUILD_GNU_TYPE)
STRIP = strip
endif

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

obj/Makefile:
	$(checkdir)
	-test -r /usr/share/misc/config.sub && cp -f /usr/share/misc/config.sub build-aux/config.sub
	-test -r /usr/share/misc/config.guess && cp -f /usr/share/misc/config.guess build-aux/config.guess
	mkdir -p obj
	cd obj && ../configure $(shell dpkg-buildflags --export=configure) --prefix=/usr --enable-mt $(CROSS) \
	       --mandir=/usr/share/man \
	       --infodir=/usr/share/info \
	       --bindir=/bin \
	       --libexecdir=/usr/sbin

	touch tests/testsuite tests/package.m4

obj-win32/Makefile:
	$(checkdir)
	mkdir -p obj-win32
# static to avoid needing the pthreads DLL
	cd obj-win32 && CFLAGS='-static $(CFLAGS)' ../configure --host i686-w64-mingw32

build-arch: build
build-indep: build
build:	obj/Makefile
	$(checkdir)
	$(MAKE) -C obj
	touch tests/testsuite.at tests/testsuite tests/package.m4
ifeq (,$(findstring nocheck,$(DEB_BUILD_OPTIONS)))
	$(MAKE) -C obj check
endif
	touch build

build-win32:	obj-win32/Makefile
	$(checkdir)
	$(MAKE) -C obj-win32
	touch build-win32

clean:
	$(checkdir)
	$(RM) build
	test ! -f Makefile || $(MAKE) distclean
	$(RM) config.cache
	$(RM) -r obj obj-win32
	$(RM) -r *~ debian/tmp debian/tmp-win32 debian/*~ debian/files*
	$(RM) -f debian/substvars
	$(RM) -rf autom4te.cache
	$(RM) -f build-aux/config.guess build-aux/config.sub

binary-indep:	checkroot build build-win32
	$(checkdir)
	$(RM) -r debian/tmp-win32
	$(INSTALL_DIR) debian/tmp-win32 debian/tmp-win32/DEBIAN
	$(INSTALL_DIR) debian/tmp-win32/usr/share/doc/$(package)-win32
# Install directories
	$(INSTALL_DIR) 	\
		debian/tmp-win32/usr/share/win32
# Install files
	install -m 755 obj-win32/src/cpio.exe debian/tmp-win32/usr/share/win32/
	i686-w64-mingw32-strip debian/tmp-win32/usr/share/win32/cpio.exe
# Install changelog & copyright
	install -m 644 debian/changelog \
	  debian/tmp-win32/usr/share/doc/$(package)-win32/changelog.Debian
	gzip -9nv debian/tmp-win32/usr/share/doc/$(package)-win32/*
	install -m 644 debian/copyright debian/tmp-win32/usr/share/doc/$(package)-win32/.

# Generate md5sums
	cd debian/tmp-win32 && find * -type f ! -regex '^DEBIAN/.*' -print0 | LC_ALL=C sort -z | xargs -r0 md5sum > DEBIAN/md5sums

# Generate deb file
	dpkg-gencontrol -pcpio-win32 -Pdebian/tmp-win32
	chown -R root.root debian/tmp-win32
	chmod -R g-ws debian/tmp-win32
	find debian/tmp-win32 -depth -newermt '$(BUILD_DATE)' -print0 | \
		xargs -0r touch --no-dereference --date='$(BUILD_DATE)'
	dpkg-deb --build debian/tmp-win32 ..

binary-arch:	checkroot build
	$(checkdir)
	$(RM) -r debian/tmp
	$(INSTALL_DIR) debian/tmp debian/tmp/DEBIAN
	$(INSTALL_DIR) debian/tmp/usr/share/doc/$(package)
# Install Debian package control information files
	$(INSTALL_SCRIPT) debian/postinst \
		debian/prerm debian/tmp/DEBIAN/.
# Install directories
	$(INSTALL_DIR) 	\
		debian/tmp/bin	\
		debian/tmp/usr/share/man/man1	\
		debian/tmp/usr/share/info
# Install files
	$(MAKE) -C obj install DESTDIR=$(CURDIR)/debian/tmp
	rm -rf debian/tmp/usr/libexec
	rm -rf debian/tmp/usr/share/man/man8/rmt.8
	mv debian/tmp/bin/mt debian/tmp/bin/mt-gnu
	mv debian/tmp/usr/share/man/man1/mt.1 \
	  debian/tmp/usr/share/man/man1/mt-gnu.1
# Strip binaries (including hack by policy wonks)
ifeq (,$(findstring nostrip,$(DEB_BUILD_OPTIONS)))
	$(STRIP) -R.note -R.comment debian/tmp/bin/*
endif
	rm -rf debian/tmp/usr/sbin
# Install documentation
	install -m 644 ChangeLog debian/tmp/usr/share/doc/$(package)/changelog
	install -m 644 NEWS README debian/tmp/usr/share/doc/$(package)/.
# Install changelog & copyright
	install -m 644 debian/changelog \
	  debian/tmp/usr/share/doc/$(package)/changelog.Debian
	gzip -9nv debian/tmp/usr/share/doc/$(package)/*
	gzip -9nv debian/tmp/usr/share/man/*/*
	find debian/tmp/usr/share/man/ -type d -empty -delete
	rm -rf debian/tmp/usr/share/info
	install -m 644 debian/copyright debian/tmp/usr/share/doc/$(package)/.
# Determine shared library dependencies
	dpkg-shlibdeps debian/tmp/bin/cpio debian/tmp/bin/mt-gnu

# Generate md5sums
	cd debian/tmp && find * -type f ! -regex '^DEBIAN/.*' -print0 | LC_ALL=C sort -z | xargs -r0 md5sum > DEBIAN/md5sums

# Generate deb file
	dpkg-gencontrol -pcpio -Pdebian/tmp
	chown -R root.root debian/tmp
	chmod -R g-ws debian/tmp
	find debian/tmp -depth -newermt '@$(SOURCE_DATE_EPOCH)' -print0 | \
		xargs -0r touch --no-dereference --date='@$(SOURCE_DATE_EPOCH)'
	dpkg-deb --build debian/tmp ..

define checkdir
	test -f src/$(package).h && test -f debian/rules
endef

# Below here is fairly generic really

binary:		binary-indep binary-arch

source diff:
	@echo >&2 'source and diff are obsolete - use dpkg-source -b'; false

checkroot:
	$(checkdir)
	test root = "`whoami`"

.PHONY: binary binary-arch binary-indep clean checkroot