chiark - git - mdw - exim-config/blob - Makefile

   1 ### -*-makefile-*-
   2 ###
   3 ### Build script for Exim configuration
   4 ###
   5 ### (c) 2012 Mark Wooding
   6 ###
   7
   8 ###----- Licensing notice ---------------------------------------------------
   9 ###
  10 ### This program is free software; you can redistribute it and/or modify
  11 ### it under the terms of the GNU General Public License as published by
  12 ### the Free Software Foundation; either version 2 of the License, or
  13 ### (at your option) any later version.
  14 ###
  15 ### This program is distributed in the hope that it will be useful,
  16 ### but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ### GNU General Public License for more details.
  19 ###
  20 ### You should have received a copy of the GNU General Public License
  21 ### along with this program; if not, write to the Free Software Foundation,
  22 ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23
  24 ###--------------------------------------------------------------------------
  25 ### Utility macros.
  26
  27 ## Silent-rules machinery.
  28 V = 0
  29 v_tag = $(call v_tag_$V,$1)
  30 v_tag_0 = @printf "  %-6s %s\n" $1 $@;
  31
  32 V_GEN = $(call v_tag,GEN)
  33 V_AT = $(V_AT_$V)
  34 V_AT_0 = @
  35
  36 ## Splitting things at slashes -- don't leave the slash.
  37 dir-nosl = $(patsubst %/,%,$(dir $1))
  38
  39 ###--------------------------------------------------------------------------
  40 ### Introductory machinery.
  41
  42 all:
  43 .SECONDEXPANSION: # sorry
  44
  45 CLEANFILES              += $(TARGETS)
  46
  47 ###--------------------------------------------------------------------------
  48 ### Main source files.
  49
  50 ## There's a base set of files, and a number of optional modules.  A
  51 ## collection of modules is called a `mode', and we generate an output file
  52 ## for each required mode.
  53
  54 EARLY                    = defs.m4 divmap.m4 config.m4
  55 MAIN                     = lists.m4 base.m4
  56
  57 MODES                    =
  58
  59 MODES                   += satellite
  60 OPTIONS_satellite        = satellite.m4 sat-rewrite.m4
  61
  62 MODES                   += srv
  63 HOOKS_srv                = nosysdomain.m4
  64 OPTIONS_srv              = exchange.m4 spam.m4 vhost.m4 sat-rewrite.m4
  65
  66 MODES                   += hub
  67 OPTIONS_hub              = auth.m4 exchange.m4 local.m4 spam.m4
  68 OPTIONS_hub             += user-spam.m4 vhost.m4
  69
  70 MODES                   += usersat
  71 OPTIONS_usersat          = auth.m4 local.m4 satellite.m4
  72
  73 -include local.mk
  74
  75 ###--------------------------------------------------------------------------
  76 ### Resolving what needs to be built.
  77
  78 HOST_MODES              += $(foreach m, $(MODES), \
  79                                 $(foreach h, $(HOSTS_$m), $h/$m))
  80
  81 CONFIGS                  = $(foreach m, $(MODES), exim4-$m.conf)
  82 TARGETS                 += $(CONFIGS)
  83 $(CONFIGS): exim4-%.conf: $(EARLY) $$(HOOKS_$$*) $(MAIN) $$(OPTIONS_$$*)
  84         $(V_GEN)m4 -P -DMODE=$* $^ >$@.new
  85         $(V_AT)$(CHECK_$*)exim4 -C$@.new -bV >/dev/null
  86         $(V_AT)mv $@.new $@
  87
  88 all: $(TARGETS)
  89
  90 host-mode                = $(notdir $(filter $1/%, $(HOST_MODES)))
  91
  92 HOSTS                    = $(sort $(call dir-nosl, $(HOST_MODES)))
  93
  94 ###--------------------------------------------------------------------------
  95 ### Propagating configuration to remote hosts.
  96
  97 THISHOST                 = $(shell hostname)
  98 OTHERHOSTS               = $(filter-out $(THISHOST), $(HOSTS))
  99
 100 ROOT                     = sudo
 101
 102 install_rune             = \
 103         exim4 -C/etc/exim4/exim4.conf.new -bV >/dev/null && \
 104         mv /etc/exim4/exim4.conf.new /etc/exim4/exim4.conf && \
 105         service exim4 reload
 106
 107 install/$(THISHOST): exim4-$(call host-mode,$(THISHOST)).conf
 108         $(ROOT) cp $< /etc/exim4/exim4.conf.new
 109         $(ROOT) sh -c '$(install_rune)'
 110
 111 $(addprefix install/, $(OTHERHOSTS)): \
 112 install/%: exim4-$$(call host-mode,$$*).conf
 113         $(ROOT) scp $< root@$*:/etc/exim4/exim4.conf.new
 114         $(ROOT) ssh root@$* '$(install_rune)'
 115
 116 install: $(addprefix install/, $(HOSTS))
 117
 118 clean:; rm -f $(CLEANFILES)
 119 .PHONY: clean
 120
 121 ###----- That's all, folks --------------------------------------------------