### -*-makefile-*-
###
### Build script for Exim configuration
###
### (c) 2012 Mark Wooding
###

###----- Licensing notice ---------------------------------------------------
###
### 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 2 of the License, 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, write to the Free Software Foundation,
### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

V = 0
v_tag = $(call v_tag_$V,$1)
v_tag_0 = @printf "  %-6s %s\n" $1 $@;

V_GEN = $(call v_tag,GEN)
V_AT = $(V_AT_$V)
V_AT_0 = @

dir-nosl = $(patsubst %/,%,$(dir $1))

all:
.SECONDEXPANSION: # sorry

CLEANFILES		+= $(TARGETS)

EARLY			 = defs.m4 divmap.m4 config.m4
MAIN			 = lists.m4 base.m4

MODES			 =

MODES			+= satellite
OPTIONS_satellite	 = satellite.m4

MODES			+= hub
OPTIONS_hub		 = auth.m4 exchange.m4 local.m4 spam.m4 vhost.m4

MODES			+= usersat
OPTIONS_usersat		 = auth.m4 local.m4 satellite.m4

-include local.mk

HOST_MODES		+= $(foreach m, $(MODES), \
				$(foreach h, $(HOSTS_$m), $h/$m))

CONFIGS			 = $(foreach m, $(MODES), exim4-$m.conf)
TARGETS			+= $(CONFIGS)
$(CONFIGS): exim4-%.conf: $(EARLY) $$(HOOKS_$$*) $(MAIN) $$(OPTIONS_$$*)
	$(V_GEN)m4 -P -DMODE=$* $^ >$@.new
	$(V_AT)exim4 -C$@.new -bV >/dev/null
	$(V_AT)mv $@.new $@

all: $(TARGETS)

THISHOST		 = $(shell hostname)

ROOT			 = sudo

INSTALL_TARGETS		 = $(addprefix install-, $(HOST_MODES))

$(filter install-$(THISHOST)/%, $(INSTALL_TARGETS)): \
install-$(THISHOST)/%: exim4-%.conf
	$(ROOT) install -m644 $< /etc/exim4/exim4.conf
	$(ROOT) service exim4 reload

$(filter-out install-$(THISHOST)/%, $(INSTALL_TARGETS)): \
install-%: exim4-$$(notdir $$*).conf
	$(ROOT) scp $< root@$(call dir-nosl,$*):/etc/exim4/exim4.conf
	$(ROOT) ssh root@$(call dir-nosl,$*) service exim4 reload

install: $(INSTALL_TARGETS)

clean:; rm -f $(CLEANFILES)
.PHONY: clean