# Rules that creates the list of files which are used during
# compilation. The list reflects conditional compilation depending on
# config.omk and other variables.

SOURCES_LIST_FN=sources.txt
ifndef SOURCES_LIST
SOURCES_LIST_DIR:=$(RELATIVE_DIR)
SOURCES_LIST:=$(OUTPUT_DIR)/$(SOURCES_LIST_DIR)/$(SOURCES_LIST_FN)
SOURCES_LIST_D := $(LOCAL_BUILD_DIR)/$(SOURCES_LIST_FN).d
export SOURCES_LIST SOURCES_LIST_DIR SOURCES_LIST_D
endif

ifneq ($(filter sources-list TAGS tags cscope,$(MAKECMDGOALS)),)
NEED_SOURCES_LIST=y
endif

ifeq ($(NEED_SOURCES_LIST),y) # avoid execution of find command bellow if it is not useful
.PHONY: sources-list
sources-list: $(SOURCES_LIST)

$(SOURCES_LIST): $(CONFIG_FILES) $(shell find -name $(MAKEFILE_OMK))
	@$(call mkdir_def,$(dir $(SOURCES_LIST_D)))
	@echo -n "" > "$(SOURCES_LIST).tmp"
	@echo -n "" > "$(SOURCES_LIST_D).tmp"
	@$(MAKE) --no-print-directory sources-list-pass
	@echo "# Automatically generated list of files in '$(RELATIVE_DIR)' that are used during OMK compilation" > "$(SOURCES_LIST).tmp2"
	@cat "$(SOURCES_LIST).tmp"|sort|uniq >> "$(SOURCES_LIST).tmp2"
	@rm "$(SOURCES_LIST).tmp"
	@mv "$(SOURCES_LIST).tmp2" "$(SOURCES_LIST)"
	@echo "$(SOURCES_LIST): \\" > "$(SOURCES_LIST_D).tmp2"
	@cat "$(SOURCES_LIST_D).tmp"|grep -v "$(SOURCES_LIST_D).tmp"|sort|uniq|\
		sed -e 's/$$/\\/' >> "$(SOURCES_LIST_D).tmp2"
	@rm "$(SOURCES_LIST_D).tmp"
	@mv "$(SOURCES_LIST_D).tmp2" "$(SOURCES_LIST_D)"
endif

$(eval $(call omk_pass_template,sources-list-pass,$$(LOCAL_BUILD_DIR),,always))

sources-list-pass-local:
	@$(foreach m,$(MAKEFILE_LIST),echo '  $(m)' >> "$(SOURCES_LIST_D).tmp";)
	@$(foreach h,$(include_HEADERS) $(nobase_include_HEADERS) $(kernel_HEADERS),\
	  echo "$(addsuffix /,$(RELATIVE_DIR:$(SOURCES_LIST_DIR)/%=%))$(h)" >> "$(SOURCES_LIST).tmp";)
	@$(foreach ch,$(config_include_HEADERS), \
	  echo "$(USER_INCLUDE_DIR:$(OUTPUT_DIR)/$(addsuffix /,$(SOURCES_LIST_DIR))%=%)/$(ch)" >> "$(SOURCES_LIST).tmp";)
	@$(foreach h,$(renamed_include_HEADERS),echo '$(h)'|sed -e 's|\(.*\)->.*|$(addsuffix /,$(RELATIVE_DIR:$(SOURCES_LIST_DIR)/%=%))\1|' >> "$(SOURCES_LIST).tmp";)
	@$(foreach bin,$(lib_LIBRARIES) $(shared_LIBRARIES) $(bin_PROGRAMS) $(test_PROGRAMS) $(utils_PROGRAMS) \
	  $(kernel_LIBRARIES) $(rtlinux_LIBRARIES) $(kernel_MODULES),\
	  $(foreach src,$(filter-out %.o,$($(bin)_SOURCES)),echo "$(addsuffix /,$(RELATIVE_DIR:$(SOURCES_LIST_DIR)/%=%))$(src)" >> "$(SOURCES_LIST).tmp";))

############ TAGS ###########

ifeq ($(MAKECMDGOALS),TAGS)
ETAGS=etags
TAGS_CMD = $(ETAGS)
TAGS: $(SOURCES_LIST)
	@$(MAKE) --no-print-directory do-tags
endif
ifeq ($(MAKECMDGOALS),tags) 
CTAGS=ctags -N
TAGS_CMD = $(CTAGS)
tags: $(SOURCES_LIST)
	@$(MAKE) --no-print-directory do-tags
endif
export TAGS_CMD

ifeq ($(MAKECMDGOALS),do-tags)
.PHONY: do-tags
do-tags: $(shell sed -e '/^\#/d' $(SOURCES_LIST))
	@$(QUIET_CMD_ECHO) "  TAGS    $(SOURCES_LIST_FN)"
	$(Q)$(TAGS_CMD) $^
endif

############ CSCOPE ###########

cscope: $(SOURCES_LIST)
	@$(QUIET_CMD_ECHO) "  CSCOPE  < $(SOURCES_LIST_FN)"
	$(Q)sed -e '/^#/d' $(SOURCES_LIST)|cscope -b -i-
#FIXME: see doc to -i in cscope(1)

# Local Variables:
# mode:makefile
# End: