#!/usr/bin/make -f

# FRRouting Configuration options
######################################
#
#    WANT_xxxx   --> Set to 1 for enable, 0 for disable
# The following are the defaults. They can be overridden by setting a 
# env variable to a different value
#
#   export WANT_LDP=1
#   export WANT_PIM=1
#   export WANT_OSPFAPI=1
#   export WANT_TCP_ZEBRA=0
#   export WANT_BGP_VNC=0
#   export WANT_CUMULUS_MODE=0
#   export WANT_MULTIPATH=1
#
# If multipath is enabled (WANT_MULTIPATH=1), then set number of multipaths here
# Please be aware that 0 is NOT disabled, but treated as unlimited
#   export MULTIPATH=256
#
# Set the following to the value required (or leave undefined for the default below)
# WANT_FRR_USER is used for the username and groupname of the FRR user account
#   export WANT_FRR_USER=frr
#   export WANT_FRR_VTY_GROUP=frrvty
#
####################################

export DH_VERBOSE=1
export DEB_BUILD_MAINT_OPTIONS = hardening=+all
export DH_OPTIONS=-v

ifeq ($(WANT_SNMP), 1)
  USE_SNMP=--enable-snmp
  $(warning "DEBIAN: SNMP enabled, sorry for your inconvenience")
else
  $(warning "DEBIAN: SNMP disabled, see README.Debian")
endif

ifneq ($(WANT_LDP), 0)
  USE_LDP=--enable-ldpd
else
  USE_LDP=--disable-ldpd
endif

ifneq ($(WANT_PIM), 0)
  USE_PIM=--enable-pimd
else
  USE_PIM=--disable-pimd
endif

ifneq ($(WANT_OSPFAPI), 0)
  USE_OSPFAPI=--enable-ospfapi=yes
else
  USE_OSPFAPI=--enable-ospfapi=no
endif

ifeq ($(WANT_TCP_ZEBRA),1)
  USE_TCP_ZEBRA=--enable-tcp-zebra
endif

ifneq ($(WANT_BGP_VNC), 0)
  USE_BGP_VNC=--enable-bgp-vnc=yes
else
  USE_BGP_VNC=--enable-bgp-vnc=no
endif

ifndef WANT_FRR_USER
  USE_FRR_USER=--enable-user=frr
  USE_FRR_GROUP=--enable-group=frr
else
  USE_FRR_USER=$(WANT_FRR_USER)
  USE_FRR_GROUP=$(WANT_FRR_USER)
endif

ifndef WANT_FRR_VTY_GROUP
  USE_FRR_VTY_GROUP=--enable-vty-group=frrvty
else
  USE_FRR_VTY_GROUP=--enable-vty-group=$(WANT_FRR_VTY_GROUP)
endif

ifneq ($(WANT_MULTIPATH), 0)
  ifdef MULTIPATH
    USE_MULTIPATH=--enable-multipath=$(MULTIPATH)
  else
    USE_MULTIPATH=--enable-multipath=256
  endif
else
  USE_MULTIPATH=--disable-multipath
endif

ifeq ($(WANT_CUMULUS_NODE), 1)
  USE_CUMULUS=--enable-cumulus=yes
else
  USE_CUMULUS=--enable-cumulus=no
endif

ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
  DEBIAN_JOBS := $(subst parallel=,,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
endif

ifdef DEBIAN_JOBS
MAKEFLAGS += -j$(DEBIAN_JOBS)
endif

%:
	dh $@ --with=systemd,autoreconf --parallel --dbg-package=frr-dbg --list-missing

override_dh_auto_configure:
	# Frr needs /proc to check some BSD vs Linux specific stuff.
	# Else it fails with an obscure error message pointing out that
	# IPCTL_FORWARDING is an undefined symbol which is not very helpful.
	@if ! [ -d /proc/1 ]; then \
		echo "./configure needs a mounted /proc"; \
		exit 1; \
	fi

	if ! [ -e config.status ]; then \
	dh_auto_configure -- \
		--enable-exampledir=/usr/share/doc/frr/examples/ \
		--localstatedir=/var/run/frr \
		--sbindir=/usr/lib/frr \
		--sysconfdir=/etc/frr \
		$(USE_SNMP) \
		$(USE_OSPFAPI) \
		$(USE_MULTIPATH) \
		$(USE_LDP) \
		$(USE_TCP_ZEBRA) \
		--enable-fpm \
		$(USE_FRR_USER) $(USE_FRR_GROUP) \
		$(USE_FRR_VTY_GROUP) \
		--enable-configfile-mask=0640 \
		--enable-logfile-mask=0640 \
		--enable-werror \
		--with-libpam \
		--enable-systemd=yes \
		--enable-poll=yes \
		$(USE_CUMULUS) \
		$(USE_PIM) \
		--enable-dependency-tracking \
		$(USE_BGP_VNC) \
		$(shell dpkg-buildflags --export=configure); \
	fi

override_dh_auto_build:
	#dh_auto_build
	$(MAKE)
	dh_auto_build -- -C doc draft-zebra-00.txt


	# doc/ is a bit crazy
ifeq ($(GENERATE_PDF), 1)
	dh_auto_build -- -C doc frr.pdf || true # pdfetex fails with exit code 1 but still produces a good looking .pdf
endif
	rm -vf doc/frr.info
	dh_auto_build -- -C doc frr.info
	rm -vf doc/frr.info.html*

override_dh_auto_test:

override_dh_auto_install:
	dh_auto_install

	# installed in frr-pythontools
	rm debian/tmp/usr/lib/frr/frr-reload.py

	# cleaning up the info dir
	rm -f debian/tmp/usr/share/info/dir*

	# install config files
	mkdir -p debian/tmp/etc/frr/
	perl -pi -e 's#^!log file #!log file /var/log/frr/#' debian/tmp/usr/share/doc/frr/examples/*sample*

	# installing the Frr specific SNMP MIB
ifeq ($(WANT_SNMP), 1)
	install -D -m 644 ./zebra/GNOME-PRODUCT-ZEBRA-MIB debian/tmp/usr/share/snmp/mibs/GNOME-PRODUCT-ZEBRA-MIB
else
	mkdir -p debian/tmp/usr/share/snmp/mibs/
endif

	# cleaning .la files
	sed -i "/dependency_libs/ s/'.*'/''/" debian/tmp/usr/lib/*.la
	sed -i "/dependency_libs/ s/'.*'/''/" debian/tmp/usr/lib/frr/modules/*.la

override_dh_systemd_start:
	dh_systemd_start frr.service

override_dh_systemd_enable:
	dh_systemd_enable frr.service

# backports
SRCPKG = frr
KNOWN_BACKPORTS = debian8 debian9 ubuntu12.04 ubuntu14.04 ubuntu16.04 ubuntu17.10
DEBIAN_VERSION := $(shell dh_testdir && \
		dpkg-parsechangelog -c1 < debian/changelog | \
		sed -rn 's/^Version: ?//p')
ORIG_VERSION := $(DEBIAN_VERSION)
-include debian/backports/rules

ifneq ($(TARBALLDIR),)
ifeq ($(wildcard frr-$(ORIG_VERSION).tar.gz),frr-$(ORIG_VERSION).tar.gz)

$(TARBALLDIR)/$(SRCPKG)_$(ORIG_VERSION).orig.tar.gz: \
		frr-$(ORIG_VERSION).tar.gz
	cp $< $@

else # wildcard frr-$(ORIG_VERSION).tar.gz

# better error message on missing .orig.tar.gz
$(TARBALLDIR)/$(SRCPKG)_$(ORIG_VERSION).orig.tar.gz:
	@ echo "\`$(TARBALLDIR)/$(SRCPKG)-$(ORIG_VERSION).tar.gz'" not \
		found and not generated by debian/rules. Provided you have the \
		necessary packages installed, you can generate it yourself via \
		"\"./bootstrap.sh && ./configure && make dist\"".
	exit 1

endif # wildcard frr-$(ORIG_VERSION).tar.gz
endif # TARBALLDIR nonempty