~j-harbott/cirros/dev

ARCH = i386

TOP_D = $(shell pwd)

BR_D = $(TOP_D)/buildroot

OUT_D = $(TOP_D)/output/$(ARCH)

BR_OUT_D = $(OUT_D)/buildroot

CONF_D = $(TOP_D)/conf

DL_D = $(TOP_D)/download

SKEL_D = $(OUT_D)/skeleton

TMPDIR ?= $(OUT_D)/tmp

export TMPDIR

DISK_IMG = $(OUT_D)/disk.img

PART_IMG = $(OUT_D)/part.img

TAR_IMG = $(OUT_D)/rootfs.tar

BR_TAR_IMG = $(BR_OUT_D)/images/rootfs.tar

BR2_CCACHE_DIR = $(OUT_D)/ccache

BR_MAKE = cd $(BR_D) && mkdir -p "$(TMPDIR)" && \

   make O=$(BR_OUT_D) BR2_DL_DIR=$(DL_D) \

   BR2_CONFIG=$(BR_OUT_D)/.config \

   BUSYBOX_CONFIG_FILE=$(BR_OUT_D)/busybox.config \

   BR2_CCACHE_DIR=$(BR2_CCACHE_DIR)

BR_DEPS = $(BR_D) $(BR_OUT_D)/busybox.config $(BR_OUT_D)/.config $(SKEL_D)/.dir

BR_CONFIG = $(CONF_D)/buildroot-$(ARCH).config

BUSYBOX_VERSION := $(shell sed -n \

   "s,^BUSYBOX_VERSION\s*=\s*\([^\s]*\).*,\1,p" \

   $(BR_D)/package/busybox/busybox.mk)

BUSYBOX_BUILD_DIR = $(BR_OUT_D)/build/busybox-$(BUSYBOX_VERSION)

BUSYBOX_BUILD_CONFIG = $(BUSYBOX_BUILD_DIR)/.config

unexport SED # causes random issues (LP: #920620)

all: $(TAR_IMG)

debug:

	@echo "BR_DEPS: $(BR_DEPS)"

	@echo "BR_MAKE: $(BR_MAKE)"

	@echo "BR_OUT_D: $(BR_OUT_D)"

	@echo "BUSYBOX_BUILD_CONFIG: $(BUSYBOX_BUILD_CONFIG)"

	@echo "BUSYBOX_VERSION: $(BUSYBOX_VERSION)"

source: br_source minicloud_source

br_source: $(BR_DEPS) $(OUT_D)/.source.$(ARCH)

minicloud_source: $(DL_D)/.dir

	@echo hi world

	# here we would download the Ubuntu kernel

$(BR_D):

	@[ -d "$(BR_D)" ] || { echo "You Must download BUILDROOT, extract it, and symlink to $(BR_D)"; exit 1; }

$(OUT_D)/.source.$(ARCH): 

	$(BR_MAKE) source

$(BR_OUT_D)/busybox.config: $(CONF_D)/busybox.config $(BR_OUT_D)/.dir

	cp $(CONF_D)/busybox.config $@

	for s in configured built target_installed; do rm -f $(BR_OUT_D)/build/busybox-*/.stamp_$$s; done

$(BR_OUT_D)/.config: $(BR_CONFIG) $(BR_OUT_D)/.dir

	cp $(BR_CONFIG) $@

$(TAR_IMG): $(BR_TAR_IMG)

	cp $(BR_TAR_IMG) $(TAR_IMG)

$(BR_TAR_IMG): $(BR_DEPS)

	$(BR_MAKE)

$(SKEL_D)/.dir:

	# copy BR_D/fs/skeleton, then sync src/ over the

	# top of that.

	# depends on $(BR_D)/fs/skeleton (somehow)

	[ -d $(SKEL_D) ] || mkdir -p $(SKEL_D)

	rsync -a $(BR_D)/system/skeleton/ $(SKEL_D)/ --delete

	rsync -a $(TOP_D)/src/ $(SKEL_D)/

	touch $(SKEL_D)/.dir

br-menuconfig: $(BR_OUT_D)/.config

	$(BR_MAKE) $* menuconfig

	cp $(BR_OUT_D)/.config $(CONF_D)/buildroot-$(ARCH).config

br-busybox-menuconfig: $(BR_OUT_D)/busybox.config

	$(BR_MAKE) $* busybox-menuconfig

	cp $(BUSYBOX_BUILD_CONFIG) $(CONF_D)/busybox.config

br-%: $(BR_OUT_D)/.config $(BR_OUT_D)/busybox.config

	$(BR_MAKE) $*

%/.dir:

	mkdir -p $* && touch $@