NONE := $(shell touch .config)
include .config

TOP_DIR         := $(CURDIR)
PATHS           :=

CONFIG_PATH     := $(CURDIR)
CONFIG_FILE     := .config
CONFIG          := $(CONFIG_PATH)/$(CONFIG_FILE)
DEPLOY_FOLDER	:= deploy
DEPLOY          := $(CONFIG_PATH)/$(DEPLOY_FOLDER)
HANDOUT_FOLDER	:= handouts
HANDOUT		:=$(DEPLOY)/$(HANDOUT_FOLDER)

BUILD_COMMAND   := pdflatex
BUILD_DEBUG	:= -halt-on-error
BUILD_ARGS      := $(BUILD_DEBUG) --interaction=patchmode
BUILD           := $(BUILD_COMMAND) $(BUILD_ARGS)

KCONFIG_PATH	:= ./kconfig-frontends/frontends
KCONFIG 	:= $(KCONFIG_PATH)/conf/conf
KMCONFIG	:= $(KCONFIG_PATH)/mconf/mconf

LATEX_CONFIG	:=  $(TOP_DIR)/config/

MASTER_PRES	:= tmp_master_pres.tex
MATSER_HANDOUT	:= tmp_master_handout.tex

EXCLUDE_PATH := grep -v ./kconfig-frontends |  grep -v ./kernel-devel/module-basics/vain |  grep -v ./kernel-devel/module-basics/vain_pci | grep -v ./kernel-devel/module-basics/vain_plat
# Sesrch for all folders with Makfile
MAKE_FILES = $(shell find . -mindepth 2 -name Makefile | $(EXCLUDE_PATH))
PATHS = $(dir $(MAKE_FILES))

FIRST_FOLDER_LEVEL := $(shell find . -maxdepth 1 -type d | $(EXCLUDE_PATH))

export

build:
	mkdir -p $(HANDOUT)
	for dir in $(PATHS) ; do \
		($(MAKE) -C $$dir -f $(CURDIR)/modules.mk $@ ); \
	done
ifeq ($(CONFIG_BUILD_MASTER_PRES),y)
	($(MAKE) -C ./ -f Makefile build_master_pres );
endif

menuconfig:
	$(KMCONFIG)  Kconfig

config:
	$(KCONFIG) --oldaskconfig Kconfig

oldconfig:
	cp $@ .config
	$(KCONFIG) --oldconfig Kconfig

clean:
	@echo "Cleaning"
	rm -rf $(DEPLOY_FOLDER)
	for dir in $(PATHS) ; do \
		($(MAKE) -C $$dir -f $(CURDIR)/modules.mk $@ ); \
	done

mrproper distclean:
	@echo "distclean"
	rm -f .config
	rm -f .config.old
	rm -rf $(DEPLOY_FOLDER)
	for dir in $(PATHS) ; do \
		($(MAKE) -C $$dir -f $(CURDIR)/modules.mk clean ); \
	done

build_master_pres:
	@echo "Build masterpres with:"$(obj-y)
	`echo "\input{configmasterpres}" > $(MASTER_PRES)`
	for dir in $(PATHS) ; do \
		($(MAKE) -C $$dir -f $(CURDIR)/modules.mk build_master_pres ); \
	done
	`echo "\input{tailmasterpres}" >> $(MASTER_PRES)`
	$(BUILD) $(MASTER_PRES)
	cp $(subst .tex,.pdf,$(MASTER_PRES)) $(DEPLOY)/

build_master_handout:
	@echo "Build matser handout"$(obj-handout-y)
 


.PHONY: config oldconfig menuconfig build clean mrproper distclean