.EXPORT_ALL_VARIABLES:
.NOTPARALLEL: .PHONY
# Additional distribution files
DISTFILES_extra=  Makefile request-assign-future.txt etc

LISPDIRS      = lisp
OTHERDIRS     = doc etc
CLEANDIRS     = testing mk
SUBDIRS       = $(OTHERDIRS) $(LISPDIRS)
INSTSUB       = $(SUBDIRS:%=install-%)
ORG_MAKE_DOC ?= info html pdf

ifneq ($(wildcard .git),)
  ORGVERSION ?= $(subst release_,,$(shell git describe --match release\* --abbrev=0 HEAD))
  ifeq ($(ORGVERSION),)
    # In elpa.git, there are no tags available.  Fall back to using
    # the org.el header.
    ORGVERSION := $(patsubst %-dev,%,$(shell $(BATCH) --eval "(require 'lisp-mnt)" \
      --visit lisp/org.el --eval '(princ (lm-header "version"))'))
    GITVERSION ?= $(ORGVERSION)-g$(shell git rev-parse --short=6 HEAD)
  else
    GITVERSION ?= $(shell git describe --match release\* --abbrev=6 HEAD)
  endif
  GITSTATUS  ?= $(shell git status -uno --porcelain)
else
 -include mk/version.mk
  GITVERSION ?= N/A
  ORGVERSION ?= N/A
endif
DATE          = $(shell date +%Y-%m-%d)
YEAR          = $(shell date +%Y)
ifneq ($(GITSTATUS),)
  GITVERSION := $(GITVERSION:.dirty=).dirty
endif

.PHONY:	all oldorg update update2 up0 up1 up2 single $(SUBDIRS) \
	check test install $(INSTSUB) \
	info html pdf card refcard doc docs \
	autoloads cleanall clean $(CLEANDIRS:%=clean%) \
	clean-install cleanelc cleandirs \
	cleanlisp cleandoc cleandocs cleantest \
	compile compile-dirty uncompiled \
	config config-test config-exe config-all config-eol config-version \
	vanilla

CONF_BASE = EMACS DESTDIR ORGCM ORG_MAKE_DOC
CONF_DEST = lispdir infodir datadir testdir
CONF_TEST = BTEST_PRE BTEST_POST BTEST_OB_LANGUAGES BTEST_EXTRA BTEST_RE
CONF_EXEC = CP MKDIR RM RMR FIND CHMOD SUDO PDFTEX TEXI2PDF TEXI2HTML MAKEINFO INSTALL_INFO
CONF_CALL = BATCH BATCHL ELC ELCDIR NOBATCH BTEST MAKE_LOCAL_MK MAKE_ORG_INSTALL MAKE_ORG_VERSION
config-eol:: EOL = \#
config-eol:: config-all
config config-all::
	$(info )
	$(info ========= Emacs executable and Installation paths)
	$(foreach var,$(CONF_BASE),$(info $(var)	= $($(var))$(EOL)))
	$(foreach var,$(CONF_DEST),$(info $(var)	= $(DESTDIR)$($(var))$(EOL)))
config-test config-all::
	$(info )
	$(info ========= Test configuration)
	$(foreach var,$(CONF_TEST),$(info $(var)	= $($(var))$(EOL)))
config-exe config-all::
	$(info )
	$(info ========= Executables used by make)
	$(foreach var,$(CONF_EXEC),$(info $(var)	= $($(var))$(EOL)))
config-cmd config-all::
	$(info )
	$(info ========= Commands used by make)
	$(foreach var,$(CONF_CALL),$(info $(var)	= $($(var))$(EOL)))
config config-test config-exe config-all config-version::
	$(info ========= Org version)
	$(info make:  Org mode version $(ORGVERSION) ($(GITVERSION) => $(lispdir)))
	@echo ""

oldorg:	compile info	# what the old makefile did when no target was specified
uncompiled:	cleanlisp autoloads	# for developing
refcard:	card
update update2::	up0 all

single:	ORGCM=single
single:	compile

.PRECIOUS:	local.mk
local.mk:
	$(info ======================================================)
	$(info = Invoke "make help" for a synopsis of make targets. =)
	$(info = Created a default local.mk template.               =)
	$(info = Setting "oldorg" as the default target.            =)
	$(info = Please adapt local.mk to your local setup!         =)
	$(info ======================================================)
	-@$(MAKE_LOCAL_MK)

all compile::
	$(foreach dir, doc lisp, $(MAKE) -C $(dir) clean;)
compile compile-dirty::
	$(MAKE) -C lisp $@
all clean-install::
	$(foreach dir, $(SUBDIRS), $(MAKE) -C $(dir) $@;)

vanilla:
	-@$(NOBATCH) &

check test::	compile
check test test-dirty::
	-$(MKDIR) $(testdir)
	TMPDIR=$(testdir) $(BTEST)
ifeq ($(TEST_NO_AUTOCLEAN),) # define this variable to leave $(testdir) around for inspection
	$(MAKE) cleantest
endif

up0 up1 up2::
	git checkout $(GIT_BRANCH)
	git remote update
	git pull
up1 up2::	all
	$(MAKE) test-dirty
up2 update2::
	$(SUDO) $(MAKE) install

install:	$(INSTSUB)

install-info:	install-doc

doc docs:	$(ORG_MAKE_DOC)

info html pdf card:
	$(MAKE) -C doc $@

$(INSTSUB):
	$(MAKE) -C $(@:install-%=%) install

autoloads: lisp
	$(MAKE) -C $< $@

cleandirs:
	$(foreach dir, $(SUBDIRS), $(MAKE) -C $(dir) cleanall;)

clean:	cleanlisp cleandoc

cleanall: cleandirs cleantest
	-$(FIND) . \( -name \*~ -o -name \*# -o -name .#\* \) -exec $(RM) {} +
	-$(FIND) $(CLEANDIRS) \( -name \*~ -o -name \*.elc \) -exec $(RM) {} +

$(CLEANDIRS:%=clean%):
	-$(FIND) $(@:clean%=%) \( -name \*~ -o -name \*.elc \) -exec $(RM) {} +

cleanelc:
	$(MAKE) -C lisp $@

cleanlisp cleandoc:
	$(MAKE) -C $(@:clean%=%) clean

cleandocs:
	$(MAKE) -C doc clean
	-$(FIND) doc -name \*~ -exec $(RM) {} \;

cleantest:
# git-annex creates non-writable directories so that the files within
# them can't be removed; if rm fails, try to recover by making all
# directories writable
	-$(RMR) $(testdir) || { \
	  $(FIND) $(testdir) -type d -exec $(CHMOD) u+w {} + && \
	  $(RMR) $(testdir) ; \
	}