#!/usr/bin/make -f
#
#  Makefile-opendreambox v0.4.6 (2010-02-20)
#

# Note: You can override all variables by storing them
# in an external file called "build.conf".
-include build.conf

# target platform: dm500hd, dm500plus, dm600pvr, dm7020, dm7025, dm800, dm8000
MACHINE ?= dm500plus

# for a list of some other repositories have
# a look at http://git.opendreambox.org/
GIT_URL ?= git://git.opendreambox.org/git/openembedded

# in case you want to send pull requests or generate patches
#GIT_AUTHOR_NAME ?= Your Name
#GIT_AUTHOR_EMAIL ?= you@example.com

# Uncomment this if you want to use only one Git repository
# for all platforms.
#SINGLE_REPOSITORY ?= 1

# Uncomment this if you're upgrading an installation
# from Monotone. This changes the directory layout
# to the old version without shared directories.
#UPGRADE_FROM_MONOTONE ?= 1

# you should not need to change anything below
BB_URL = git://git.opendreambox.org/git/bitbake
BB_BRANCH = 1.4.2-git

GIT = git
GIT_BRANCH = opendreambox-1.5

PWD := $(shell pwd)

ifeq ($(UPGRADE_FROM_MONOTONE),1)
OE_BASE = $(PWD)
else
OE_BASE = $(PWD)/$(MACHINE)
endif

ifeq ($(SINGLE_REPOSITORY),1)
GIT_DIR = $(PWD)/openembedded
else
GIT_DIR = $(OE_BASE)/openembedded
endif

ifeq ($(findstring $(MACHINE),dm500plus dm600pvr dm7020),$(MACHINE))
ARCH = powerpc
else
ARCH = mipsel
endif

all: initialize
	@echo
	@echo "Openembedded for the Dreambox environment has been initialized"
	@echo "properly. Now you can either:"
	@echo
	@echo "  - make the 'image'-target to build an image, or"
	@echo "  - go into $(MACHINE)/build/, source env.source and start on your own!"
	@echo

bb: bb/.git

bb/.git:
	@if [ -e bb/.svn ]; then \
		echo "BitBake needs to be updated. Please remove the \"bb\" directory manually!"; \
		exit 1; \
	fi
	$(GIT) clone -n $(BB_URL) bb
	cd bb && ( \
		if [ -n "$(GIT_AUTHOR_EMAIL)" ]; then git config user.email "$(GIT_AUTHOR_EMAIL)"; fi; \
		if [ -n "$(GIT_AUTHOR_NAME)" ]; then git config user.name "$(GIT_AUTHOR_NAME)"; fi; \
		$(GIT) branch --track $(BB_BRANCH) origin/$(BB_BRANCH) || true; \
		$(GIT) checkout -f $(BB_BRANCH) \
	)

bb-update: bb/.git
	cd bb && $(GIT) pull origin $(BB_BRANCH)

.PHONY: bb-update image initialize openembedded-update openembedded-update-all

image: bb-update initialize openembedded-update
	cd $(OE_BASE)/build; . ./env.source; bitbake -k dreambox-image

initialize: $(OE_BASE)/cache sources $(OE_BASE)/build $(OE_BASE)/build/conf \
	$(OE_BASE)/build/tmp $(GIT_DIR) $(OE_BASE)/build/conf/local.conf \
	$(OE_BASE)/build/env.source bb

openembedded-update: $(GIT_DIR)
	cd $(GIT_DIR) && $(GIT) pull origin $(GIT_BRANCH)

openembedded-update-all:
	@for dir in dm*/openembedded; do \
		echo "running $(GIT) pull origin $(GIT_BRANCH) in $$dir"; \
		cd $$dir && $(GIT) pull origin $(GIT_BRANCH) && cd -; \
	done


$(OE_BASE)/build $(OE_BASE)/build/conf $(OE_BASE)/build/tmp $(OE_BASE)/cache sources:
	mkdir -p $@

$(OE_BASE)/build/conf/local.conf:
	echo 'DL_DIR = "$(PWD)/sources"' > $@
	echo 'OE_BASE = "$(OE_BASE)"' >> $@
	echo 'BBFILES = "$(GIT_DIR)/packages/*/*.bb"' >> $@
	echo 'BBMASK = "(nslu.*|.*-sdk.*)"' >> $@
	echo 'PREFERRED_PROVIDERS += " virtual/$${TARGET_PREFIX}gcc-initial:gcc-cross-initial"' >> $@
	echo 'PREFERRED_PROVIDERS += " virtual/$${TARGET_PREFIX}gcc:gcc-cross"' >> $@
	echo 'PREFERRED_PROVIDERS += " virtual/$${TARGET_PREFIX}g++:gcc-cross"' >> $@
	echo 'MACHINE = "$(MACHINE)"' >> $@
	echo 'TARGET_OS = "linux"' >> $@
	echo 'DISTRO = "opendreambox-1.5"' >> $@
	echo 'CACHE = "$(OE_BASE)/cache/oe-cache.$${USER}"' >> $@

$(OE_BASE)/build/env.source:
	echo 'OE_BASE=$(OE_BASE)' > $@
	echo 'export BBPATH="$(GIT_DIR)/:$(PWD)/bb/:$${OE_BASE}/build/"' >> $@
	echo 'PATH=$(PWD)/bb/bin:$${OE_BASE}/build/tmp/cross/bin:$${PATH}' >> $@
	echo 'export PATH' >> $@
	echo 'export LD_LIBRARY_PATH=' >> $@
	echo 'export LANG=C' >> $@
	cat $@

$(GIT_DIR): $(GIT_DIR)/.git

$(GIT_DIR)/.git:
	@if [ -d $(GIT_DIR)/_MTN ]; then echo "Please remove your old monotone repository from $(GIT_DIR)!"; exit 1; fi
	$(GIT) clone -n $(GIT_URL) $(GIT_DIR)
	cd $(GIT_DIR) && ( \
		if [ -n "$(GIT_AUTHOR_EMAIL)" ]; then git config user.email "$(GIT_AUTHOR_EMAIL)"; fi; \
		if [ -n "$(GIT_AUTHOR_NAME)" ]; then git config user.name "$(GIT_AUTHOR_NAME)"; fi; \
		$(GIT) branch --track $(GIT_BRANCH) origin/$(GIT_BRANCH) || true; \
		$(GIT) checkout -f $(GIT_BRANCH) \
	)