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# [qMp] firmware generator (http://qmp.cat)
#
# Copyright (C) 2011-2014 Routek S.L. routek.net
#
# Thiss program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Contributors: Pau Escrich <p4u@dabax.net>, Simó Albert i Beltran, Agustí Moll


OWRT_SCM = git clone git://git.openwrt.org/14.07/openwrt.git
OWRT_PKG_SCM = git clone -b for-14.07 https://github.com/openwrt/packages.git
QMP_GIT_RW = ssh://gitolite@qmp.cat:qmp.git
QMP_GIT_RO = git://qmp.cat/qmp.git
QMP_GIT_BRANCH ?= testing
QMP_CODENAME ?= Clearance
BUILD_DIR = build
CONFIG_DIR = configs
MY_CONFIGS = $(BUILD_DIR)/configs
IMAGES = images
SHELL = bash
QMP_FEED = package/feeds/qmp_packages
SCRIPTS_DIR= scripts
COMMUNITY ?= qMp
EXTRA_PACKS =
J ?= 1
V ?= 0
T ?= ar71xx
MAKE_SRC = -j$(J) V=$(V)
IMAGEOPT ?= true
VERSIONOPT ?= true
VERSION_REPO ?= http://fw.qmp.cat/$(QMP_GIT_BRANCH)_openwrt-%T-generic/packages
VERSION_DIST ?= qMp
VERSION_NICK ?= Clearance
VERSION_CODE ?= Clearance
VERSION_NUMBER ?= testing

include targets.mk

PROFILE ?= ath-qmp-tiny-node
TIMESTAMP = $(shell date +%Y%m%d_%H%M)

#Checking if developer mode is enabled and if target is defined before
$(eval $(if $(DEV),QMP_GIT=$(QMP_GIT_RW),QMP_GIT=$(QMP_GIT_RO)))

#Define TARGET_CONFIGS and TARGET
$(eval $(if $(TARGET_MASTER),TARGET_CONFIGS=$(TARGET_MASTER),TARGET_CONFIGS=$(T)))
$(eval $(if $(TARGET),,TARGET=$(T)))

#Define BUILD_PATH based on TBUILD (defined in targets.mk)
$(eval $(if $(TBUILD),,TBUILD=$(TARGET)))
BUILD_PATH=$(BUILD_DIR)/$(TBUILD)

#Getting output image paths and names
IMAGE_PATH := $(shell echo $(IMAGE) | awk '{print $$1}')
IM_NAME := $(shell echo $(IMAGE) | awk '{print $$2}')
SIMAGE_PATH := $(shell echo $(SYSUPGRADE) | awk '{print $$1}')
SIM_NAME := $(shell echo $(SYSUPGRADE) | awk '{print $$2}')

CONFIG = $(BUILD_PATH)/.config
KCONFIG = $(BUILD_PATH)/target/linux/$(ARCH)/config-*

.PHONY: checkout update clean config menuconfig kernel_menuconfig list_targets pre_build compile post_build clean_qmp


define build_src
$(eval BRANCH_GIT=$(shell git --git-dir=$(BUILD_DIR)/qmp/.git branch|grep ^*|cut -d " " -f 2))
$(eval REV_GIT=$(shell git --git-dir=$(BUILD_DIR)/qmp/.git --no-pager log -n 1 --oneline|cut -d " " -f 1))
make -C $(BUILD_PATH) $(MAKE_SRC) IMAGEOPT=$(IMAGEOPT) VERSIONOPT=$(VERSIONOPT) VERSION_REPO=$(VERSION_REPO) VERSION_DIST=$(VERSION_DIST) VERSION_NICK=$(VERSION_NICK) VERSION_NUMBER=$(VERSION_NUMBER) VERSION_CODE=$(VERSION_CODE) BRANCH_GIT=$(BRANCH_GIT) REV_GIT=$(REV_GIT)
endef

define copy_feeds_file
$(if $(1),$(eval FEEDS_DIR=$(1)),$(eval FEEDS_DIR=$(TBUILD)))
$(if $(FEEDS_DIR),,$(call target_error))
cat $(BUILD_DIR)/qmp/feeds.conf >> $(BUILD_DIR)/$(FEEDS_DIR)
sed -i -e "s|PATH|`pwd`/$(BUILD_DIR)|" $(BUILD_DIR)/$(FEEDS_DIR)/feeds.conf
endef

define checkout_src
$(OWRT_SCM) $(BUILD_PATH)
mkdir -p dl
ln -fs ../../dl $(BUILD_PATH)/dl
ln -fs ../qmp/files $(BUILD_PATH)/files
ln -fs $(BUILD_DIR)/qmp/files
rm -rf $(BUILD_PATH)/feeds/
$(call copy_feeds_file,$(TBUILD))
endef

define checkout_owrt_pkg_override
$(OWRT_PKG_SCM) $(BUILD_DIR)/packages.$(TARGET)
sed -i -e "s|src-link packages .*|src-link packages `pwd`/$(BUILD_DIR)/packages.$(TARGET)|" $(BUILD_PATH)/feeds.conf
endef

define copy_config
@echo "Using profile $(PROFILE)"
cp -f $(CONFIG_DIR)/$(PROFILE) $(CONFIG) || echo "WARNING: Config file not found!"
-[ -f $(CONFIG_DIR)/targets/$(TARGET) ] && cat $(CONFIG_DIR)/targets/$(TARGET) >> $(CONFIG) || true
cd $(BUILD_PATH) && make defconfig
endef

define copy_config_obsolete
@echo "Syncronizing new configuration"
cp -f $(CONFIG_DIR)/$(TARGET_CONFIGS)/config $(CONFIG) || echo "WARNING: Config file not found!"
cd $(BUILD_PATH) && ./scripts/diffconfig.sh > .config.tmp
cp -f $(BUILD_PATH)/.config.tmp $(BUILD_PATH)/.config
cd $(BUILD_PATH) && make defconfig
-[ -f $(CONFIG_DIR)/$(TARGET_CONFIGS)/kernel_config ] && cat $(CONFIG_DIR)/$(TARGET_CONFIGS)/kernel_config >> $(CONFIG)
endef

define copy_myconfig
@echo "Syncronizing configuration from previous one"
@cp -f $(MY_CONFIGS)/$(TARGET_CONFIGS)/config $(CONFIG) || echo "WARNING: Config file not found in $(MY_CONFIGS)!"
-@[ -f $(MY_CONFIGS)/$(TARGET_CONFIGS)/kernel_config ] && cat $(MY_CONFIGS)/$(TARGET_CONFIGS)/kernel_config >> $(CONFIG)
endef

define update_feeds
@echo "Updating feed $(1)"
./$(BUILD_DIR)/$(1)/scripts/feeds update -a
./$(BUILD_DIR)/$(1)/scripts/feeds install -a
endef

define menuconfig_owrt
make -C $(BUILD_PATH) menuconfig
mkdir -p $(MY_CONFIGS)/$(TARGET)
cp -f $(CONFIG) $(MY_CONFIGS)/$(TARGET)/config
endef

define kmenuconfig_owrt
make -C $(BUILD_PATH) kernel_menuconfig
mkdir -p $(MY_CONFIGS)/$(TARGET)
cp -f $(KCONFIG) $(MY_CONFIGS)/$(TARGET)/kernel_config
endef

define pre_build
@echo "Executing PRE_BUILD scripts"
$(foreach SCRIPT, $(wildcard $(SCRIPTS_DIR)/*.script), $(shell $(SCRIPT) PRE_BUILD $(TBUILD) $(TARGET) $(EXTRA_PACKS)) )
endef

define post_build
$(eval BRANCH_GIT=$(shell git --git-dir=$(BUILD_DIR)/qmp/.git branch|grep ^*|cut -d " " -f 2))
$(if $(IM_NAME),,$(eval IM_NAME=$(NAME)-$(COMMUNITY)_$(BRANCH_GIT)-factory-$(TIMESTAMP).bin))
$(if $(SIM_NAM),,$(eval SIM_NAME=$(NAME)-$(COMMUNITY)_$(BRANCH_GIT)-sysupgrade-$(TIMESTAMP).bin))
$(eval COMP=$(shell ls $(BUILD_PATH)/$(IMAGE_PATH) 2>/dev/null | grep -c \\.gz))
mkdir -p $(IMAGES)
-@[ $(COMP) -eq 1 ] && gunzip $(BUILD_PATH)/$(IMAGE_PATH) -c > $(IMAGES)/$(IM_NAME)
-@[ $(COMP) -ne 1 -a -f $(BUILD_PATH)/$(IMAGE_PATH) ] && cp -f $(BUILD_PATH)/$(IMAGE_PATH) $(IMAGES)/$(IM_NAME)
-@[ $(COMP) -eq 1 -a -n "$(SYSUPGRADE)" ] && gunzip $(BUILD_PATH)/$(SIMAGE_PATH) -c > $(IMAGES)/$(SIM_NAME)
-@[ $(COMP) -ne 1 -a -n "$(SYSUPGRADE)" ] && cp -f $(BUILD_PATH)/$(SIMAGE_PATH) $(IMAGES)/$(SIM_NAME)
@[ -f $(IMAGES)/$(IM_NAME) ] || echo No output image configured in targets.mk
@echo $(IM_NAME)
$(if $(SYSUPGRADE),@echo $(SIM_NAME))
@echo "Executing POST_BUILD scripts"
$(foreach SCRIPT, $(wildcard $(SCRIPTS_DIR)/*.script), $(shell $(SCRIPT) POST_BUILD $(TBUILD) $(TARGET) $(EXTRA_PACKS)) )
@echo "qMp firmware compiled, you can find output files in $(IMAGES) directory."
endef

define clean_all
rm -rf $(BUILD_DIR)/*
rm -f .checkout_*
rm -f $(IMAGES)/*.bin $(IMAGES)/IMAGES
endef

define clean_target
-rm -rf $(BUILD_PATH)
-rm -f .checkout_$(TBUILD)
-rm -rf $(BUILD_DIR)/packages.$(TARGET)
rm -f .checkout_owrt_pkg_override_$(TARGET)
endef

define clean_pkg
echo "Cleaning package $1"
make $1/clean
endef

define target_error
@echo "You must specify target using T var (make T=alix build)"
@echo "To see avialable targets run: make list_targets"
@exit 1
endef

define get_git_local_revision
git rev-parse origin/$1
endef

define get_git_remote_revision
git ls-remote origin $1 | awk 'NR==1{print $$1}'
endef

all: build

.checkout_qmp:
-@[ "$(DEV)" == "1" ] && echo "Using developer enviroment"
git clone $(QMP_GIT) $(BUILD_DIR)/qmp
cd $(BUILD_DIR)/qmp; git checkout $(QMP_GIT_BRANCH); cd ..
@touch $@

.checkout_owrt_pkg:
$(OWRT_PKG_SCM) $(BUILD_DIR)/packages
@touch $@

.checkout_owrt_pkg_override:
$(if $(filter $(origin OWRT_PKG_SCM),override),$(if $(wildcard .checkout_owrt_pkg_override_$(TARGET)),,$(call checkout_owrt_pkg_override)),)
@touch .checkout_owrt_pkg_override_$(TARGET)

.checkout_owrt:
$(if $(TBUILD),,$(call target_error))
$(if $(wildcard .checkout_$(TBUILD)),,$(call checkout_src))

checkout: .checkout_qmp .checkout_owrt .checkout_owrt_pkg .checkout_owrt_pkg_override
$(if $(wildcard .checkout_$(TBUILD)),,$(call update_feeds,$(TBUILD)))
$(if $(wildcard .checkout_$(TBUILD)),,$(call copy_config))
@touch .checkout_$(TBUILD)

sync_config:
$(if $(TARGET),,$(call target_error))
$(if $(wildcard $(MY_CONFIGS)/$(TARGET_CONFIGS)), $(call copy_myconfig),$(call copy_config))

update: .checkout_owrt_pkg .checkout_owrt_pkg_override .checkout_qmp
$(if $(TBUILD),,$(call target_error))
cd $(BUILD_DIR)/qmp && git pull
$(call copy_feeds_file)

update_all: .checkout_owrt_pkg .checkout_owrt_pkg_override .checkout_qmp
@echo Updating qMp repository
cd $(BUILD_DIR)/qmp && git pull
@echo Updating feeds config files
$(foreach dir,$(TBUILD_LIST),$(if $(wildcard $(BUILD_DIR)/$(dir)),$(call copy_feeds_file,$(dir))))
@echo Updating feeds
$(foreach dir,$(TBUILD_LIST),$(if $(wildcard $(BUILD_DIR)/$(dir)),$(call update_feeds,$(dir))))

update_feeds: update
$(call update_feeds,$(TBUILD))

menuconfig: checkout sync_config
$(call menuconfig_owrt)

kernel_menuconfig: checkout sync_config
$(call kmenuconfig_owrt)

clean:
$(if $(TARGET),$(call clean_target),$(call clean_all))

clean_qmp:
cd $(BUILD_PATH) ; \
for d in $(QMP_FEED)/*; do make $$d/clean ; done

post_build: checkout
$(call post_build)

pre_build: checkout
$(call pre_build)

compile: checkout
$(if $(TARGET),$(call build_src))


list_targets:
$(info $(HW_AVAILABLE))
@exit 0

target_name:
$(info $(NAME))
@exit 0

config:
@select HW in $(HW_AVAILABLE); do break; done; echo $$HW > .config.tmp;
mv .config.tmp .config

help:
-cat README | more

build: checkout sync_config pre_build compile post_build

is_up_to_date:
cd $(BUILD_DIR)/qmp && test "$$($(call get_git_local_revision,$(QMP_GIT_BRANCH)))" == "$$($(call get_git_remote_revision,$(QMP_GIT_BRANCH)))"
(2-2/5)