#!/usr/bin/make -f
# -*- makefile -*-
# Sample debian/rules that uses debhelper. 
# GNU copyright 1997 by Joey Hess.
#
# This version is for a hypothetical package that can build a kernel modules
# architecture-dependant package via make-kpkg, as well as an
# architecture-independent module source package, and other packages
# either dep/indep for things like common files or userspace components
# needed for the kernel modules.

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

CFLAGS = -Wall -g

### KERNEL SETUP
### Setup the stuff needed for making kernel module packages
### taken from /usr/share/kernel-package/sample.module.rules

# Name of package
package		= misdn-kernel
# KSRC is the location of the kernel source. This is the default value,
# when make-kpkg is used it will supply to real value
KSRC		= /usr/src/linux
# KDREV is the package-revision, as given to make-kpkg by the user.
# Just put a simply default value in here which we use when we test
# the packagebuilding without make-kpkg
ifeq ($(strip $(KDREV)),)
KDREV		= "test1.0"
endif

## Now to determine the kernel version, normally supplied by make-kpkg
ifeq ($(strip $(KVERS)),)
# Now we need to get the kernel-version somehow (we are not running
# under make-kpkg?)
ifeq ($(strip $(KSRC)),)
$(error Error. I do not know how to determine the kernel version)
else
kversion :=$(shell egrep '^VERSION +=' $(KSRC)/Makefile 2>/dev/null | \
                 sed -e 's/[^0-9]*\([0-9]*\)/\1/')
kplevel  :=$(shell egrep '^PATCHLEVEL +=' $(KSRC)/Makefile 2>/dev/null | \
                    sed -e 's/[^0-9]*\([0-9]*\)/\1/')
ksublevel:=$(shell egrep '^SUBLEVEL +=' $(KSRC)/Makefile 2>/dev/null | \
                  sed -e 's/[^0-9]*\([0-9]*\)/\1/')
EXTRA_VERSION:=$(shell egrep '^EXTRAVERSION +=' $(KSRC)/Makefile 2>/dev/null | \
                 sed -e 's/EXTRAVERSION[\t ]*=[\t ]*\(.*\)/\1/')
kextra:=$(strip $(EXTRA_VERSION))
HAVE_NEW_MODLIB:=$(shell egrep '\(INSTALL_MOD_PATH\)' \
                            $(KSRC)/Makefile 2>/dev/null )

# If you want to have more than one kernel configuration per kernel
# version, set FLAVOUR in the top level kernel Makefile *before*
# invoking make-kpkg -- it will be appended to UTS_RELEASE in
# version.h (separated by a hyphen). This affects everything -- the
# names and versions of the image, source, headers, and doc packages,
# and where the modules are searched for in /lib/modules.

ifdef FLAVOUR
# uhm - should check if we really have a Makefile capable of Flavours?
endif

FLAVOUR:=$(shell grep ^FLAVOUR $(KSRC)/Makefile 2>/dev/null | \
                  perl -ple 's/FLAVOUR[\s:=]+//g')

ifneq ($(strip $(FLAVOUR)),)
INT_FLAV := -$(FLAVOUR)
FLAV_ARG := FLAVOUR=$(FLAVOUR)
else
INT_FLAV :=
FLAV_ARG :=
endif

## This is the replacement for FLAVOUR
ifneq ($(strip $(APPEND_TO_VERSION)),)
iatv := $(strip $(APPEND_TO_VERSION))
EXTRAV_ARG := EXTRAVERSION=${EXTRA_VERSION}${iatv}
else
iatv :=
EXTRAV_ARG :=
endif

KVERS = $(kversion).$(kplevel).$(ksublevel)$(kextra)$(iatv)$(INT_FLAV)

endif
endif

non_epoch_version=$(shell echo $(KVERS) | perl -pe 's/^\d+://')
epoch=$(shell echo $(KVERS) | perl -ne 'm/^(\d+:)/ && print $$1')

# We also need the package version
pversion	= $(shell sed -ne '1s/.*\((.*)\).*/\1/' debian/changelog)
pversion	= $(shell sed -ne '1s/.*(\(.*\)).*/\1/p' debian/changelog)

# MODDIR is the place where the final .deb package should be made. This is the
# default value, when make-kpkg is used it will supply to real value
MODDIR		= ..

pmodules = $(package)-modules-$(non_epoch_version)
psource = $(package)-source

# Prepares the package for distribution.  Intended for the kernel
# maintainer.
kdist: kdist_clean kdist_config kdist_image

# The kdist_configure target is called by make-kpkg modules_config. It
# should configure the module so it is ready for compilation (mostly
# useful for calling configure)
kdist_config:
	@echo Nothing to configure

# the kdist_image target is called by make-kpkg modules_image. It is
# responsible for compiling the module and creating the package. It
# should also clean up after making the module. Please note we use a
# seperate binary-modules target to make testing the package building
# easier
kdist_image:
	$(MAKE) $(MFLAGS) -f debian/rules binary-modules
	$(MAKE) $(MFLAGS) -f debian/rules clean

# the kdist_clean target is called by make-kpkg modules_clean. It is
# responsible for cleaning up any changes that have been made by the
# other kdist_commands (except for the .deb files created).
kdist_clean:
	$(MAKE) clean

### end  KERNEL SETUP

configure: configure-stamp
configure-stamp:
	dh_testdir
	mkdir kernel-tree
	TREEVERSION=$(shell for i in 2.6.10 2.6.8; do if [ -f /usr/src/kernel-source-$$i.tar.bz2 ]; then echo $$i; exit; fi; done; echo "none"); \
		cd kernel-tree && \
		tar -xjf /usr/src/kernel-source-$${TREEVERSION}.tar.bz2 && \
		mv kernel-source-$${TREEVERSION} src && \
		cd src && \
		/usr/src/kernel-patches/all/$${TREEVERSION}/apply/debian
	touch configure-stamp

build-arch: configure-stamp

# the binary-modules target prepares the $(pmodules) package.
# It is called by make-kpkg and *not* during a normal build
binary-modules:
	export DH_OPTIONS='-p$(pmodules)'

	# Is this needed for setting up a Depends?
	#echo "kpkg:Package-Version=$(epoch)$(pversion)+$(non_epoch_version)" \
	#	 >> debian/$(package).substvars
	echo "kpkg:Kernel-Version=$(non_epoch_version)" > \
		debian/$(pmodules).substvars

	# The substvars mechanism seems slightly broken, hack to get around it
	# stolen from the qce-ga package. Yaaaa!
	sed -e 's/$${kpkg\:Kernel\-Version}/$(non_epoch_version)/' \
	debian/control.in > debian/control

	dh_testdir
	dh_testroot
	dh_clean -k

	# Build the module
	$(MAKE)

	# Install the module
	$(MAKE) install DESTDIR=$(CURDIR)/debian/$(pmodules)

	dh_installdebconf
	# FIXME dh_installdocs README
	dh_installchangelogs

	# We're not using this yet
	#dh_installmodules

	dh_installdeb
	#dh_gencontrol -- -v$(epoch)$(pversion)+$(non_epoch_version)+$(KDREV)
	dh_gencontrol -- -v$(epoch)$(pversion)
	dh_md5sums
	#dh_builddeb --destdir=$(KSRC)/..
	dh_builddeb --destdir=$(MODDIR)


build-indep:  configure-stamp build-indep-stamp
build-indep-stamp:
	dh_testdir
	./std2kern -v -d -r -k kernel-tree/src >misdn.diff
	touch build-indep-stamp

build: build-arch build-indep

clean:
	dh_testdir
	dh_testroot
	rm -f build-arch-stamp build-indep-stamp configure-stamp

	# Add here commands to clean up after the build process.
	rm -f misdn.diff
	rm -rf kernel-tree

	dh_clean

install: DH_OPTIONS=
install: build
	dh_testdir
	dh_testroot
	dh_clean -k
	dh_installdirs

	# Create the directories to install the source into
	dh_installdirs -p$(psource)  usr/src/modules/$(package)
	dh_installdirs -p$(psource)  usr/src/modules/$(package)/debian

	# Copy only the driver source to the proper location
	find drivers/isdn/hardware/mISDN -type f | xargs -n20 -i{} install -m 644 {} debian/$(psource)/usr/src/modules/$(package)
	# Copy the needed debian/ pieces to the proper location
	#cp debian/*-modules.* \
	#	debian/$(psource)/usr/src/modules/$(package)/debian
	cp debian/control.modules.in \
		debian/$(psource)/usr/src/modules/$(package)/debian/control.in
	cp debian/rules \
		debian/$(psource)/usr/src/modules/$(package)/debian
	cp debian/changelog \
		debian/$(psource)/usr/src/modules/$(package)/debian
	cp debian/copyright \
		debian/$(psource)/usr/src/modules/$(package)/debian

	# Add here commands to install the package into debian/misdn-kernel.
	#$(MAKE) install DESTDIR=$(CURDIR)/debian/misdn-kernel

	dh_install

# Build architecture-independent files here.
# Pass -i to all debhelper commands in this target to reduce clutter.
binary-indep: build install
	dh_testdir -i
	dh_testroot -i
	dh_installchangelogs  -i
	dh_installdocs -i
	dh_installexamples -i
	dh_install -i
#	dh_installmenu -i
#	dh_installdebconf -i
#	dh_installlogrotate -i
#	dh_installemacsen -i
#	dh_installpam -i
#	dh_installmime -i
#	dh_installinit -i
#	dh_installcron -i
#	dh_installinfo -i
	dh_installman -i
	dh_installkpatches -i
	dh_link -i
	dh_compress -i
	dh_fixperms -i
	dh_installdeb -i
#	dh_perl -i
#	dh_python -i
#	dh_makeshlibs -i
	dh_installdeb -i
	dh_shlibdeps -i
	dh_gencontrol -i
	dh_md5sums -i
	dh_builddeb -i

# Build architecture-dependent files here.
binary-arch: # build install
#	dh_testdir -s
#	dh_testroot -s
#	dh_installdebconf -s
#	dh_installdocs -s
#	dh_installexamples -s
#	dh_installmenu -s
#	dh_installlogrotate -s
#	dh_installemacsen -s
#	dh_installpam -s
#	dh_installmime -s
#	dh_installinit -s
#	dh_installcron -s
#	dh_installman -s
#	dh_installinfo -s
#	dh_installchangelogs  -s
#	dh_strip -s
#	dh_link -s
#	dh_compress -s
#	dh_fixperms -s
#	dh_makeshlibs -s
#	dh_installdeb -s
#	dh_perl -s
#	dh_shlibdeps -s
#	dh_gencontrol -s
#	dh_md5sums -s
#	dh_builddeb -s

binary: binary-indep binary-arch
.PHONY: build clean binary-indep binary-arch binary install configure binary-modules kdist kdist_config kdist_image kdist_clean
