#
# ***** BEGIN LICENSE BLOCK *****
# 
# Copyright (C) 2009-2016 Olof Hagsand and Benny Holmgren
# Copyright (C) 2017-2019 Olof Hagsand
# Copyright (C) 2020-2022 Olof Hagsand and Rubicon Communications, LLC(Netgate)
#
# This file is part of CLIXON
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Alternatively, the contents of this file may be used under the terms of
# the GNU General Public License Version 3 or later (the "GPL"),
# in which case the provisions of the GPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of the GPL, and not to allow others to
# use your version of this file under the terms of Apache License version 2, 
# indicate your decision by deleting the provisions above and replace them with
# the notice and other provisions required by the GPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the Apache License version 2 or the GPL.
#
# ***** END LICENSE BLOCK *****
#

prefix		= @prefix@
exec_prefix 	= @exec_prefix@
# abs_top_builddir is by default the absolute path of the builddir.
includedir	= @includedir@
datadir 	= @datarootdir@
localstatedir	= @localstatedir@
sysconfdir	= @sysconfdir@

VPATH       	= @srcdir@
srcdir  	= @srcdir@
libdir		= @libdir@
top_srcdir  	= @top_srcdir@
CC		= @CC@
CFLAGS  	= @CFLAGS@ 
LDFLAGS 	= @LDFLAGS@
LIBS    	= @LIBS@
INSTALL		= @INSTALL@

INCLUDES 	= -I. -I@srcdir@ @INCLUDES@
SHELL		= /bin/sh

SUBDIRS1 = include lib 
SUBDIRS2 = apps etc yang # without include lib for circular dependency
SUBDIRS= $(SUBDIRS1) $(SUBDIRS2)

.PHONY:	doc example install-example clean-example all clean depend $(SUBDIRS) \
	install loc TAGS .config.status docker test util checkroot mrproper \
	checkinstall warnroot install-util clean-util

all:	$(SUBDIRS2) warnroot
	@echo "\e[32mAfter 'make install' as euid root, build example app and test utils: 'make example'\e[0m"

checkroot:
	@if command -v id &> /dev/null; then \
		if [ "$${DESTDIR}" = "" -a $$(id -u) != "0" ]; then \
			echo "\e[31mThis target must be made as euid root\e[0m"; exit 1; \
		fi; \
	fi;

warnroot:
	@if command -v id &> /dev/null; then \
		if [ $$(id -u) = 0 ]; then \
			echo "\e[36mWarning: You built this target as uid root\e[0m"; exit 0; \
		fi; \
	fi;

checkinstall:
	@if [ ! -f $(prefix)/include/clixon/clixon.h ]; then \
	  echo "\e[31mclixon must be installed first to build this target. "\
	  "Run 'make'. Then run 'make install' as root.\e[0m"; exit 1; fi;

# May cause circular include->include,lib
$(SUBDIRS2): $(SUBDIRS1) # Cannot build app before lib (for parallel make -j)
	(cd $@ && $(MAKE) $(MFLAGS) all)

$(SUBDIRS1): 
	(cd $@ && $(MAKE) $(MFLAGS) all)

depend:
	for i in $(SUBDIRS) doc example docker; \
	do (cd $$i && $(MAKE) $(MFLAGS) depend); done

# Needs root permissions on most systems by default
install: checkroot
	for i in $(SUBDIRS) doc; \
	do (cd $$i; $(MAKE) $(MFLAGS) $@)||exit 1; done; 
	$(MAKE) $(MFLAGS) install-include

install-include:
	for i in $(SUBDIRS) doc; \
	do (cd $$i && $(MAKE) $(MFLAGS) $@)||exit 1; done; 
	@echo "\e[32mTo install example app and test utils: make install-example\e[0m"

uninstall: checkroot
	for i in $(SUBDIRS) doc example util docker; \
	do (cd $$i && $(MAKE) $(MFLAGS) $@)||exit 1; done; 

doc: warnroot
	cd $@; $(MAKE) $(MFLAGS) $@

util:
	cd $@; $(MAKE) $(MFLAGS)

clean-util:
	cd util; $(MAKE) $(MFLAGS) clean

install-util:
	cd util; $(MAKE) $(MFLAGS) install

uninstall-util:
	cd util; $(MAKE) $(MFLAGS) uninstall

clean-example:
	for i in example util; \
	  do (cd $$i && $(MAKE) $(MFLAGS) clean) || exit 1; done;

install-example: checkroot
	for i in example util; \
	  do (cd $$i && $(MAKE) $(MFLAGS) install) || exit 1; done;

uninstall-example: checkroot
	for i in example util; \
	  do (cd $$i && $(MAKE) $(MFLAGS) uninstall) || exit 1; done;

config.status:	configure
	$(SHELL) config.status --recheck

configure: configure.ac
	cd $(srcdir) && autoconf

clean:
	for i in $(SUBDIRS) doc example util docker; \
		do (cd $$i && $(MAKE) $(MFLAGS) $@); done; 
	rm -f *.gcov test/*.gcov

# Uninstall and clean all the targets used for testing, but without cloning or
# checking-out from git. Provides a reliabily clean slate for testing changes
# before commit.
mrproper: uninstall uninstall-example uninstall-util clean clean-example clean-util

distclean:
	rm -f Makefile TAGS config.status config.log *~ .depend
	rm -rf autom4te.cache build-root/rpmbuild
	rm -f build-root/*.tar.xz build-root/*.rpm extras/rpm/Makefile
	for i in $(SUBDIRS) doc example util docker; \
		do (cd $$i && $(MAKE) $(MFLAGS) $@); done

export BR=$(CURDIR)/build-root

$(BR)/scripts/.version:
ifneq ("$(wildcard /etc/redhat-release)","")
	$(shell $(BR)/scripts/version rpm-string > $(BR)/scripts/.version)
else
	$(shell $(BR)/scripts/version > $(BR)/scripts/.version)
endif

DIST_FILE = $(BR)/clixon-$(shell extras/scripts/version).tar
DIST_SUBDIR = clixon-$(shell extras/scripts/version | cut -f1 -d-)

dist:
	@if git rev-parse 2> /dev/null ; then \
	    git archive \
	      --prefix=$(DIST_SUBDIR)/ \
	      --format=tar \
	      -o $(DIST_FILE) \
	    HEAD ; \
	    git describe > $(BR)/.version ; \
	else \
	    (cd .. ; tar -cf $(DIST_FILE) $(DIST_SUBDIR) --exclude=*.tar) ; \
	    extras/scripts/version > $(BR)/.version ; \
	fi
	@tar --append \
	  --file $(DIST_FILE) \
	  --transform='s,.*/.version,$(DIST_SUBDIR)/extras/scripts/.version,' \
	  $(BR)/.version
	@$(RM) $(BR)/.version $(DIST_FILE).xz
	@xz -v --threads=0 $(DIST_FILE)
	@$(RM) $(BR)/clixon-latest.tar.xz
	@ln -rs $(DIST_FILE).xz $(BR)/clixon-latest.tar.xz

pkg-rpm: dist
	make -C extras/rpm

pkg-srpm: dist
	make -C extras/rpm srpm

# To make the example you need to run the "install-include" target first
example: checkinstall util warnroot
	(cd $@ && $(MAKE) $(MFLAGS) all)
	@echo "\e[36mRemember to run 'make install-example' as euid root\e[0m"

# Run a clixon test container.
# Alt: cd test; ./all.sh
test:
	$(MAKE) -C docker $(MFLAGS) $@

docker:
	for i in docker; \
		do (cd $$i && $(MAKE) $(MFLAGS) $@); done

# Lines of code
loc:
	find . -name '*.[chyl]' -type f | xargs wc -l | tail -1 2> /dev/null

TAGS:
	find $(srcdir) -name '*.[chyl]' -type f | grep -v \.tab\.[ch] | grep -v lex.*.c | grep -v .yy.c | etags -