#! /usr/bin/make -f
#
#<ABS># Makefile for generating standard software packages (deb, rpm, etc)
#
#<DSC># This makefile offers generic support for building standard binary
# software packages like Debian or Redhat currently using EPM to do the
# packaging. EPM is Free Software covered by the GPL and can be obtained
# from http://www.easysw.com/epm/ (on Debian it is actually included in the
# distribution).
#
# a makefile including buildpkg.mk must define at least the following macros:
# o MODULE:	basename of the module to be build; this name is used to
# 		initialize the macros PKGNAME and LIBNAME, if they are
# 		undefined.
# o INSTALL:	path to the install program. This macro must also be used to
#               install any files and directories in the superior makefile!
# o PKGBINS:	List of binaries to install (may be empty for library pkgs)
# o PKGSRCS:	list of source files (needed to calculate dependencies)
# o PKGHDRS:	list of header files to be installed (may be empty)
# o PKGVERSION:	the version number the package should get
# o PACKAGER:	the name of whoever is building the package, e.g $(USER)
# o VENDOR:	who's distributing the package
# o README:	path to the README file to be included in the package
# o COPYNOTE:	the name of the file containing the copyright notice to be
#		included.
# o LICENSE:	the license style, e.g. GPL
#
# the superior makefile must also provide an "install" target which generates
# and installs all files to be packaged. The "install" target is invoked from
# within buildpkg.mk with the macro RELEASE defined. This can be used to make
# sure all compilation flags are set to values suitable for releases.
#
# It may define the following optional macros:
# o PKGFORM:    the package form to be built, e.g. deb for Debian
#               please refer to `man epm' for details
# o PKGNAME:	Name for the package, if other than MODULE
# o PKGRELEASE: a Release number, defaults to zero if undefined.
#
# Furthermore it should define:
# o PKGMKFILES: to include its own name and the names of all makefiles
#               which influence the compilation of the software to be packaged.
#
# A superior makefile may request a specific version buildpkg.mk by defining
# BUILDPKG_VERSION to contain an appropriate value e.g. BUILDPKG_VERSION = 2.1
#
#<CPY># GPL 2004 Manfred Waßmann http://www.berlinos.de/
#<END>#
#
# Copyright (C) 2004 Manfred Waßmann http://www.berlinos.de/
#
# buildpkg.mk,v 2.10 2005-10-07 08:43:48 manolo Exp
#

override PKGMKFILES += buildpkg.mk

PKGFORM     ?= deb
PKGNAME     ?= $(MODULE)
ifeq ($(shell id -u),0)
  PKGBUILDER  := epm
else
  PKGBUILDER  := fakeroot epm
endif
PKGBUILDDIR := epmbuild
PKGBUILDARGS = -v -n -f $(PKGFORM) -k $(PKGNAME)
PKGLISTFILE  = $(MODULE).epm
PKGINSTALL   = ./epmhelper

LIBNAME ?= $(MODULE)

DOWNLOADPROG:= wget
DOWNLOADARGS:= -nd -N
DOWNLOADCMD  = $(DOWNLOADPROG) $(DOWNLOADARGS)

# clean-pkg may be used as a dependency for distclean in the superior makefile
clean-pkg := cleanpkg

override R:=
override __REV__ := $(strip 2.10R)
checkversion = @test -z "$(strip $(1))" || ( echo Requested version: $(1) ; \
	test "$(__REV__)" = "evision: $(1)" -o "$(__REV__)" = "$(1)R" )
checkmacro   = @printf "%s %s: " $(0) $(1) ; \
	if [ "$(strip $($(1)))" ];then \
		echo "$($(1))" ;else echo " * NOT SET * ";false;fi
condinstall  = @test -z "$(strip $(2))" || \
	{ echo "Packaging $(3): $(2)"; $(INSTALL) $(2) $(1) ; }

######################
### Target section ###
######################

####################
### Main Targets ###
####################

buildpkg: pkgcheck pkgprepare
	@+printf "[%s%s]\n" $@ " {$?}"


cleanpkg:
	@+printf "[%s%s]\n" $@
	$(RM) *.epm.O
	$(RM) -r *.epm $(PKGBUILDDIR)


deb: buildpkg
	@+printf "[%s%s]\n" $@ " {$?}"


rpm:
	@+printf "[%s%s]\n" $@
	$(MAKE) buildpkg PKGFORM=rpm


########################
### Internal Targets ###
########################
pkgcheck: $(PKGINSTALL)
	@+printf "[%s%s]\n" $@
	$(call checkversion,$(strip $(BUILDPKG_VERSION)))
	$(call checkmacro,MODULE)
	$(call checkmacro,LIBNAME)
	$(call checkmacro,INSTALL)


pkgprepare: $(PKGBUILDDIR) $(PKGLISTFILE) $(COPYNOTE) $(PKGHDRS) pkginstlibs
	@+printf "[%s%s]\n" $@ " {$?}"
	$(call condinstall,$<,$(COPYNOTE),"copyright notice")
	$(call condinstall,$<,$(PKGHDRS),"headers")
	$(call condinstall,$<,$(PKGBINS),"programs")
	$(call condinstall,$<, \
		$(wildcard lib*$(LIBNAME).a lib*$(LIBNAME).so.*),"libraries")
#	$(INSTALL) $(PKGLISTFILE) $(PKGBUILDDIR)
	if [ "$(PKGCONFFILES)" ];then sed \
		$(foreach FILE,$(PKGCONFFILES),-e '/$(FILE)/s/^f/c/') \
		$(PKGLISTFILE) >$(PKGBUILDDIR)/$(PKGLISTFILE) ;\
	else \
		cp -f $(PKGLISTFILE) $(PKGBUILDDIR)/$(PKGLISTFILE); \
	fi
	cd $< && $(PKGBUILDER) $(PKGBUILDARGS) $(PKGLISTFILE)


$(PKGBUILDDIR):
	@+printf "[%s%s]\n" $@
	$(INSTALL) -d $@
	chmod 0775 $@


%.epm: $(PKGSRCS) $(PKGHDRS) $(PKGMKFILES)
	@+printf "[%s%s]\n" $@ " {$?}"
	printf "%s %s\n" \
		"%product" "$(MODULE)" \
		"%copyright" "$(LICENSE)" \
		"%license" "$(COPYNOTE)" \
		"%packager" "$(PACKAGER)" \
		"%vendor" "$(VENDOR)" \
		"%readme" "$(README)" \
		"%version" "$(PKGVERSION)" \
		>$@
	-test $(PKGRELEASE) && printf "%s %s\n" "%release" "$(PKGRELEASE)" >>$@
	$(MAKE) install RELEASE=1 \
		INSTALL="$(PKGINSTALL) -d $(PKGBUILDDIR) -f $@ -i $(INSTALL)"
	$(RM) -v $@.O


epmhelper:
	@+printf "[%s%s]\n" $@
	$(DOWNLOADCMD) http://www.berlinos.de/Snippets/$@
	chmod a+x $@


##############################
### Administrative Targets ###
##############################
.PHONY: buildpkg cleanpkg deb rpm pkgcheck pkgprepare pkginstlibs

# buildpkg.mk,v
# Revision 2.10  2005-10-07 08:43:48  manolo
# Fix empty PKGCONFFILES macro.
#
# Revision 2.9  2005/06/29 06:37:08  manolo
# Support config files via PKGCONFFILES macro.
#
# Revision 2.8  2005/02/11 16:30:44  manolo
# Package name may be overriden by specifying new macro PKGNAME;
# fakeroot is only used, if not invoked from root account.
#
# Revision 2.7  2005/02/08 00:36:59  manolo
# epmhelper fixes.
#
# Revision 2.6  2005/02/07 23:40:15  manolo
# New: epmhelper, integrates writing list file and copying files into builddir.
#
# Revision 2.5  2004/12/20 22:12:39  manolo
# More robust empty tests.
#
# Revision 2.4  2004/12/11 12:00:33  manolo
# Fixed checkversion for CVS exported script;
# beautified output from checkmacro and condinstall.
#
# Revision 2.3  2004/12/08 16:31:09  manolo
# Added macro PKGBINS.
#
# Revision 2.2  2004/12/08 16:17:18  manolo
# Fixed pkgdir creation.
#
# Revision 2.1  2004/10/16 17:09:33  manolo
# Added support for superior makefiles to require a specific version.
#
# Revision 2.0  2004/10/16 10:56:12  manolo
# Major cleanup. Incompatible changes:
#  o sources -> PKGSRCS
#  o headers -> PKGHDRS
#  o makefiles -> PKGMKFILES
#  o pkgclean -> clean-pkg
#