#  $HeadURL$ $LastChangedRevision$

ifndef METHOD_TMPLT_MK
METHOD_TMPLT_MK = 1

#  Variables (needed by method-*.mk in pass #1 and the file-*.mk in pass #0)
MAKEFILE_TMPLT_RECIPES = $(PCMS_STATE_PREFIX)/makefiles/tmplt-recipes.mk
MAKEFILE_TMPLT_FILES = $(PCMS_STATE_PREFIX)/makefiles/tmplt-files.mk

#  Generate all recipes and recipe list (but they not be used by pass #0)
ifeq ($(PCMS_PASS_NUM),1)

all: all.tmplt

#  Check symbols we'll use in recipes below.
$(eval $(call check_var_set,FILESPATH))

#  Between the lines 'PLACEHOLDERS=...' and 'VAR_INDEX=...' there was this loop:
#
#      for PLACEHOLDER in $$PLACEHOLDERS; do \
#          echo "\$$(eval \$$(call check_var_set,$$PLACEHOLDER))"; \
#      done; \
#
#  But this was *erroneously* resulting in a message saying that
#  MAIL_CLIENT_RELAY_AUTHENTICATE_YESNO was not set when running the 
#  facility-mail.mk makefile. It *really* was erreneous because the
#  addition of a small 'test: \n echo $(MAIL_CLIENT_RELAY_AUTHENTICATE_YESNO)'
#  recipe showed that it had a sensible value.
#
#  I might come back to this, but for the time being, I have to disable
#  this faulty generation of checkers.
#
#  A second problem in the same recipe: the second line in the main recipe
#  was:
#
#	 echo "  ls $$X.tmplt.* | fgrep -vx $$X.tmplt.\$$(ASSIGNMENTS_$$VAR_INDEX) | xargs rm -f"; \
#
#  which was deleting old variable assignment-recording files, except for
#  the one I'm actually using. But it seemed to delete *also* that one
#  meaning that it kept repeating the recipe.
all.tmplt: force-execution-each-time
	msg --progname=$(PROGNAME) --debug=$(VERBOSELEVEL) debug 10 "$@: generating $(MAKEFILE_TMPLT_RECIPES) ..."
	mkdir -p $(dir $(MAKEFILE_TMPLT_RECIPES))
	set -e; \
	for X in $(patsubst %.tmplt,%,$(filter %.tmplt,$^)); do \
            eval "DECODED_X=$$(encode --decode $$X)"; \
	    echo "#  $$DECODED_X"; \
	    FOUND=false; \
	    for D in $(subst :, ,$(FILESPATH)); do \
	        [ ! -f "$$D/$${DECODED_X#/}" ] || { FOUND=true; break; }; \
	    done; \
	    if $$FOUND; then \
 		PLACEHOLDERS=$$(sed -n -e '1s/^[^ ][^ ]*  *//p' "$$D/$${DECODED_X#/}"); \
		VAR_INDEX=$$RANDOM; \
                echo "ASSIGNMENTS_$$VAR_INDEX = \$$(shell encode $$(for PLACEHOLDER in $$PLACEHOLDERS; do echo -n "$$PLACEHOLDER=\"\$$($$PLACEHOLDER)\" "; done))"; \
		echo "$$X.tmplt: $$DECODED_X $$D$$DECODED_X $$X.tmplt.\$$(ASSIGNMENTS_$$VAR_INDEX)"; \
		echo "	mkdir -p \"$$(dirname $$DECODED_X)\""; \
		echo "	tmplt $$D$$DECODED_X $$DECODED_X \$$(ASSIGNMENTS_$$VAR_INDEX)"; \
		echo "	touch \$$@"; \
		echo "$$X.tmplt.\$$(ASSIGNMENTS_$$VAR_INDEX): "; \
		echo "	touch \$$@"; \
		echo "$$DECODED_X: ;"; \
	    else \
	    	echo "$$X.tmplt:"; \
		echo "	msg --progname=\$$(PROGNAME) --debug=\$$(VERBOSELEVEL) error \"$$X: none of the possible sources of this file exist\""; \
	    fi; \
	    echo; \
	done > $(MAKEFILE_TMPLT_RECIPES)
	#
	msg --progname=$(PROGNAME) --debug=$(VERBOSELEVEL) debug 10 "$@: generating $(MAKEFILE_TMPLT_FILES) ..."
	mkdir -p $(dir $(MAKEFILE_TMPLT_FILES))
	echo "TMPLT_FILES = $(filter %.tmplt,$^)" > $(MAKEFILE_TMPLT_FILES)
	
#  Stop descent
%.tmplt: ;

#  method-*.mk does nothing in pass #0; see the associated file-*mk.
else ifeq ($(PCMS_PASS_NUM),0)

#  But, since the associated file-*.mk doesn't know what the recipe targets
#  depend on, tell pass #0 to acquaint itself with how to make *those* here.
#  (none)

#  But, as a courtesy, we can load the recipes and recipe list ...
include $(MAKEFILE_TMPLT_RECIPES)
include $(MAKEFILE_TMPLT_FILES)

#  ... but it's up to the associated file-*.mk to demand that
#  $(TMPLT_FILES) be built.

endif		#  PCMS_PASS_NUM
endif		#  METHOD_TMPLT_MK