# -*- mode: makefile; coding: utf-8 -*-
# Copyright © 2002,2003 Colin Walters <walters@debian.org>
# Copyright © 2009-2016 Jonas Smedegaard <dr@jones.dk>
# Description: Defines the rule framework
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

#PATH_RULES#

ifndef _cdbs_rules_buildcore
_cdbs_rules_buildcore = 1

include $(_cdbs_rules_path)/buildvars.mk$(_cdbs_makefile_suffix)

export SOURCE_DATE_EPOCH

testdir: debian/control
	test -x debian/rules

testroot:
	$(if $(_cdbs_rules_debhelper),dh_testroot,test "`id -u`" = 0)

# These targets are triggered by pre-build and clean targets allowing
# for non-intrusive sanity checks of the build environment
$(patsubst %,testsanity/%,$(DEB_ALL_PACKAGES)):: testsanity/%:
testsanity:: $(patsubst %,testsanity/%,$(DEB_ALL_PACKAGES))

$(patsubst %,makebuilddir/%,$(DEB_ALL_PACKAGES)):: makebuilddir/%:
	$(if $(DEB_BUILDDIR_$(cdbs_curpkg)),\
		mkdir -p "$(DEB_BUILDDIR_$(cdbs_curpkg))")

makebuilddir:: $(patsubst %,makebuilddir/%,$(DEB_ALL_PACKAGES))
	mkdir -p "$(DEB_BUILDDIR)"

cleanbuilddir:: $(patsubst %,cleanbuilddir/%,$(DEB_ALL_PACKAGES))
	-$(if $(call cdbs_streq,$(DEB_BUILDDIR),$(DEB_SRCDIR)),\
		,\
		rmdir $(DEB_BUILDDIR))

$(patsubst %,cleanbuilddir/%,$(DEB_ALL_PACKAGES)):: cleanbuilddir/%:
	-$(if $(DEB_BUILDDIR_$(cdbs_curpkg)),\
		$(if $(call cdbs_streq,$(DEB_BUILDDIR_$(cdbs_curpkg)),$(DEB_SRCDIR)),\
			,\
			rmdir "$(DEB_BUILDDIR_$(cdbs_curpkg))"))



config_guess := $(shell find $(DEB_SRCDIR) \( -type f -or -type l \) -name config.guess)
config_sub := $(shell find $(DEB_SRCDIR) \( -type f -or -type l \) -name config.sub)
config_rpath := $(shell find $(DEB_SRCDIR) \( -type f -or -type l \) -name config.rpath)


# This target is called before almost anything else happens.  It's a good place
# to do stuff like unpack extra source tarballs, apply patches, and stuff.  In
# the future it will be a good place to generate debian/control, but right
# now we don't support that very well.
pre-build:: testdir testsanity makebuilddir
	$(foreach x,$(_cdbs_deprecated_vars),\
		$(eval y=$(subst $(comma), ,$x))\
		$(eval z=$(firstword $y))\
		$(if $(call cdbs_streq,$($z),$(_cdbs_deprecated_$z_default)),\
			,\
			$(call cdbs_warn_deprecated,\
				$z,$(word 2,$y),$(wordlist 3,$(words $y),$y))))

# This target is called after patches are applied.  Used by the patch system.
post-patches:: pre-build apply-patches update-config
update-config::
	$(if $(and $(config_guess),$(wildcard /usr/share/misc/config.guess)),\
		set -e; \
		$(foreach file,$(config_guess),\
			$(if $(wildcard $(file)),$(if $(wildcard $(file).cdbs-orig),\
				,\
				mv $(file) $(file).cdbs-orig; \
					cp --remove-destination \
						/usr/share/misc/config.guess $(file);))))
	$(if $(and $(config_sub),$(wildcard /usr/share/misc/config.sub)),\
		set -e; \
		$(foreach file,$(config_sub),\
			$(if $(wildcard $(file)),$(if $(wildcard $(file).cdbs-orig),\
				,\
				mv $(file) $(file).cdbs-orig; \
					cp --remove-destination \
						/usr/share/misc/config.sub $(file);))))
	$(if $(and $(config_rpath),$(wildcard /usr/share/gnulib/build-aux/config.rpath)), \
		set -e; \
		$(foreach file,$(config_rpath),\
			$(if $(wildcard $(file)),$(if $(wildcard $(file).cdbs-orig),\
				,\
				mv $(file) $(file).cdbs-orig; \
					cp --remove-destination \
						/usr/share/gnulib/build-aux/config.rpath $(file);))))

# This target should be used to configure the package before building.  Typically
# this involves running things like ./configure.
common-configure-arch:: post-patches
common-configure-indep:: post-patches
$(patsubst %,configure/%,$(DEB_ARCH_PACKAGES)):: configure/%: common-configure-arch
$(patsubst %,configure/%,$(DEB_INDEP_PACKAGES)):: configure/%: common-configure-indep

# This is a required Debian target; however, its specific semantics is
# in dispute.  We are of the opinion that 'build' should invoke
# build-arch and build-indep.  Policy tends to support us here.
# However, dpkg-buildpackage is currently invokes debian/rules build
# even when doing an architecture-specific (binary-arch) build.  This
# essentially means Build-Depends-Indep is worthless.  For more
# information, see Policy §5.2, Policy §7.6, and Debian Bug #178809.
# For now, you may override the dependencies by setting the variable
# DEB_BUILD_DEPENDENCIES, below.  This is not recommended.
DEB_BUILD_DEPENDENCIES ?= build-arch build-indep
build: $(DEB_BUILD_DEPENDENCIES)

# This target should take care of actually compiling the package from source.
# Most often this involves invoking "make".
common-build-arch:: testdir $(patsubst %,configure/%,$(DEB_ARCH_PACKAGES))
common-build-indep:: testdir $(patsubst %,configure/%,$(DEB_INDEP_PACKAGES))
$(patsubst %,build/%,$(DEB_ARCH_PACKAGES)):: build/%: common-build-arch configure/%
$(patsubst %,build/%,$(DEB_INDEP_PACKAGES)):: build/%: common-build-indep configure/%

# This rule is for stuff to run after the build process.  Note that this
# may run under fakeroot or sudo, so it's inappropriate for things that
# should be run under the build target.
common-post-build-arch:: common-build-arch $(patsubst %,build/%,$(DEB_ARCH_PACKAGES))
common-post-build-indep:: common-build-indep $(patsubst %,build/%,$(DEB_INDEP_PACKAGES))

# Required Debian targets.
build-arch: $(patsubst %,build/%,$(DEB_ARCH_PACKAGES))
build-indep: $(patsubst %,build/%,$(DEB_INDEP_PACKAGES))

# This rule is used to prepare the source package before a diff is generated.
# Typically you will invoke upstream's "make clean" rule here, although you
# can also hook in other stuff here.  Many of the included rules and classes
# add stuff to this rule.
clean:: testdir cleanbuilddir reverse-config testsanity
reverse-config::
	$(if $(config_guess)$(config_sub)$(config_rpath),\
		set -e;\
		$(foreach file,$(config_guess) $(config_sub) $(config_rpath),\
			$(if $(wildcard $(file).cdbs-orig),\
				mv $(file).cdbs-orig $(file);)))

# Style of separating build-dependencies. Perl-style: tab=\t, newline=\n
#  * Default follows recommended multiline style (see Debian Policy §7.1)
#  * Unset to get recomended single-line style ", "
CDBS_BUILD_DEPENDS_DELIMITER ?= ,\n$(space)

cdbs_re_squash_extended_space = s/[ \t\n]+/ /g

cdbs_pkgrel_varnames = $(patsubst %,CDBS_%,DEPENDS PREDEPENDS RECOMMENDS SUGGESTS BREAKS PROVIDES REPLACES CONFLICTS ENHANCES)
cdbs_pkgrel_allvars = $(call cdbs_expand_allvars,$(cdbs_pkgrel_varnames))

# This rule is called before the common-install target.  It's currently only
# used by debhelper.mk, to run dh_clean -k.
common-install-prehook-arch::
common-install-prehook-indep::

# This target should do all the work of installing the package into the
# staging directory (debian/packagename or debian/tmp).
common-install-arch:: testdir common-install-prehook-arch common-post-build-arch
common-install-indep:: testdir common-install-prehook-indep common-post-build-indep

# Required Debian targets.
install-arch: $(patsubst %,install/%,$(DEB_ARCH_PACKAGES))
install-indep: $(patsubst %,install/%,$(DEB_INDEP_PACKAGES))

# These rules should do any installation work specific to a particular package.
$(patsubst %,install/%,$(DEB_ARCH_PACKAGES)):: install/%: testdir testroot common-install-arch build/%
$(patsubst %,install/%,$(DEB_INDEP_PACKAGES)):: install/%: testdir testroot common-install-indep build/%

_cdbs_deprecated_vars += $(patsubst %,CDBS_%$(comma)0.4.85,\
	DEPENDS PREDEPENDS RECOMMENDS SUGGESTS BREAKS PROVIDES REPLACES \
	CONFLICTS ENHANCES)
CDBS_DEPENDS_DEFAULT ?= $(CDBS_DEPENDS)
CDBS_PREDEPENDS_DEFAULT ?= $(CDBS_PREDEPENDS)
CDBS_RECOMMENDS_DEFAULT ?= $(CDBS_RECOMMENDS)
CDBS_SUGGESTS_DEFAULT ?= $(CDBS_SUGGESTS)
CDBS_BREAKS_DEFAULT ?= $(CDBS_BREAKS)
CDBS_PROVIDES_DEFAULT ?= $(CDBS_PROVIDES)
CDBS_REPLACES_DEFAULT ?= $(CDBS_REPLACES)
CDBS_CONFLICTS_DEFAULT ?= $(CDBS_CONFLICTS)
CDBS_ENHANCES_DEFAULT ?= $(CDBS_ENHANCES)

# Resolve CDBS-declared binary package relations and apply to substvars files
$(patsubst %,install/%,$(DEB_ALL_PACKAGES)) :: install/%:
	@echo 'Adding cdbs dependencies to debian/$(cdbs_curpkg).substvars'
	@echo '$(call cdbs_expand_curvar,CDBS_DEPENDS,$(comma) )' \
		| perl -0 -n \
			-e '$(cdbs_re_squash_extended_space);' \
			-e '$(re_squash_commas_and_spaces);' \
			-e '/\w/ and print "cdbs:Depends=$$_\n"' \
			>> debian/$(cdbs_curpkg).substvars
	@echo '$(call cdbs_expand_curvar,CDBS_PREDEPENDS,$(comma) )' \
		| perl -0 -n \
			-e '$(cdbs_re_squash_extended_space);' \
			-e '$(re_squash_commas_and_spaces);' \
			-e '/\w/ and print "cdbs:Pre-Depends=$$_\n"' \
			>> debian/$(cdbs_curpkg).substvars
	@echo '$(call cdbs_expand_curvar,CDBS_RECOMMENDS,$(comma) )' \
		| perl -0 -n \
			-e '$(cdbs_re_squash_extended_space);' \
			-e '$(re_squash_commas_and_spaces);' \
			-e '/\w/ and print "cdbs:Recommends=$$_\n"' \
			>> debian/$(cdbs_curpkg).substvars
	@echo '$(call cdbs_expand_curvar,CDBS_SUGGESTS,$(comma) )' \
		| perl -0 -n \
			-e '$(cdbs_re_squash_extended_space);' \
			-e '$(re_squash_commas_and_spaces);' \
			-e '/\w/ and print "cdbs:Suggests=$$_\n"' \
			>> debian/$(cdbs_curpkg).substvars
	@echo '$(call cdbs_expand_curvar,CDBS_BREAKS,$(comma) )' \
		| perl -0 -n \
			-e '$(cdbs_re_squash_extended_space);' \
			-e '$(re_squash_commas_and_spaces);' \
			-e '/\w/ and print "cdbs:Breaks=$$_\n"' \
			>> debian/$(cdbs_curpkg).substvars
	@echo '$(call cdbs_expand_curvar,CDBS_PROVIDES,$(comma) )' \
		| perl -0 -n \
			-e '$(cdbs_re_squash_extended_space);' \
			-e '$(re_squash_commas_and_spaces);' \
			-e '/\w/ and print "cdbs:Provides=$$_\n"' \
			>> debian/$(cdbs_curpkg).substvars
	@echo '$(call cdbs_expand_curvar,CDBS_REPLACES,$(comma) )' \
		| perl -0 -n \
			-e '$(cdbs_re_squash_extended_space);' \
			-e '$(re_squash_commas_and_spaces);' \
			-e '/\w/ and print "cdbs:Replaces=$$_\n"' \
			>> debian/$(cdbs_curpkg).substvars
	@echo '$(call cdbs_expand_curvar,CDBS_CONFLICTS,$(comma) )' \
		| perl -0 -n \
			-e '$(cdbs_re_squash_extended_space);' \
			-e '$(re_squash_commas_and_spaces);' \
			-e '/\w/ and print "cdbs:Conflicts=$$_\n"' \
			>> debian/$(cdbs_curpkg).substvars
	@echo '$(call cdbs_expand_curvar,CDBS_ENHANCES,$(comma) )' \
		| perl -0 -n \
			-e '$(cdbs_re_squash_extended_space);' \
			-e '$(re_squash_commas_and_spaces);' \
			-e '/\w/ and print "cdbs:Enhances=$$_\n"' \
			>> debian/$(cdbs_curpkg).substvars

# This rule is called after all packages are installed.
common-binary-arch:: testdir testroot $(patsubst %,install/%,$(DEB_ARCH_PACKAGES))
common-binary-indep:: testdir testroot $(patsubst %,install/%,$(DEB_INDEP_PACKAGES))

# Required Debian targets
binary-indep: $(patsubst %,binary/%,$(DEB_INDEP_PACKAGES))
binary-arch: $(patsubst %,binary/%,$(DEB_ARCH_PACKAGES))

# These rules should do all the work of actually creating a .deb from the staging
# directory.
$(patsubst %,binary/%,$(DEB_ARCH_PACKAGES)):: binary/%: testdir testroot common-binary-arch install/%
$(patsubst %,binary/%,$(DEB_INDEP_PACKAGES)):: binary/%: testdir testroot common-binary-indep install/%

# Required Debian target
binary: binary-indep binary-arch

##
# Deprecated targets.  You should use the -arch and -indep targets instead.
##
common-configure:: common-configure-arch common-configure-indep
common-build:: common-build-arch common-build-indep
common-post-build:: common-post-build-arch common-post-build-indep
common-install-prehook:: common-install-prehook-arch common-install-prehook-indep
common-install:: common-install-arch common-install-indep
common-binary:: common-binary-arch common-binary-indep

.PHONY: pre-build testsanity $(patsubst %,testsanity/%,$(DEB_ALL_PACKAGES)) apply-patches post-patches common-configure-arch common-configure-indep $(patsubst %,configure/%,$(DEB_ALL_PACKAGES)) build common-build-arch common-build-indep $(patsubst %,build/%,$(DEB_ALL_PACKAGES)) build-arch build-indep clean common-install-arch common-install-indep install-arch install-indep $(patsubst %,install/%,$(DEB_ALL_PACKAGES)) common-binary-arch common-binary-indep $(patsubst %,binary/%,$(DEB_ALL_PACKAGES)) binary-indep binary-arch binary $(DEB_PHONY_RULES)

# Parallel execution of the cdbs makefile fragments will fail, but
# this way you can call dpkg-buildpackage with MAKEFLAGS=-j in the
# environment and the package's own makefiles can use parallel make.
.NOTPARALLEL:

endif