#####################################################

REPO_PREFIX := yunion.io/x/onecloud
VENDOR_PATH := $(REPO_PREFIX)/vendor
VERSION_PKG := $(VENDOR_PATH)/yunion.io/x/pkg/util/version
ROOT_DIR := $(CURDIR)
BUILD_DIR := $(ROOT_DIR)/_output
BIN_DIR := $(BUILD_DIR)/bin
BUILD_SCRIPT := $(ROOT_DIR)/build/build.sh

GIT_COMMIT := $(shell git rev-parse --short HEAD)
GIT_BRANCH := $(shell git rev-parse --abbrev-ref HEAD)
GIT_VERSION := $(shell git describe --tags --abbrev=14 $(GIT_COMMIT)^{commit})
GIT_TREE_STATE := $(shell s=`git status --porcelain 2>/dev/null`; if [ -z "$$s" ]; then echo "clean"; else echo "dirty"; fi)
BUILD_DATE := $(shell date -u +'%Y-%m-%dT%H:%M:%SZ')

LDFLAGS := "-w \
	-X $(VERSION_PKG).gitVersion=$(GIT_VERSION) \
	-X $(VERSION_PKG).gitCommit=$(GIT_COMMIT) \
	-X $(VERSION_PKG).gitBranch=$(GIT_BRANCH) \
	-X $(VERSION_PKG).buildDate=$(BUILD_DATE) \
	-X $(VERSION_PKG).gitTreeState=$(GIT_TREE_STATE) \
	-X $(VERSION_PKG).gitMajor=0 \
	-X $(VERSION_PKG).gitMinor=0"


#####################################################

GO_BUILD := go build -ldflags $(LDFLAGS)
GO_INSTALL := go install -ldflags $(LDFLAGS)
GO_TEST := go test

PKGS := go list ./...

CGO_CFLAGS_ENV = $(shell go env CGO_CFLAGS)
CGO_LDFLAGS_ENV = $(shell go env CGO_LDFLAGS)

ifdef LIBQEMUIO_PATH
    X_CGO_CFLAGS := ${CGO_CFLAGS_ENV} -I${LIBQEMUIO_PATH}/src -I${LIBQEMUIO_PATH}/src/include
    X_CGO_LDFLAGS := ${CGO_LDFLAGS_ENV} -laio -lqemuio -lpthread  -L ${LIBQEMUIO_PATH}/src
endif

export CGO_CFLAGS = ${X_CGO_CFLAGS}
export CGO_LDFLAGS = ${X_CGO_LDFLAGS}

all: build


install: prepare_dir
	@for PKG in $$( $(PKGS) | grep -w "$(filter-out $@,$(MAKECMDGOALS))" ); do \
		echo $$PKG; \
		$(GO_INSTALL) $$PKG; \
	done


build: gendoc
	$(MAKE) $(filter-out cmd/host-image, $(wildcard cmd/*))

gendoc:
	@sh build/gendoc.sh

test:
	@for PKG in $$( $(PKGS) | grep "$(filter-out $@,$(MAKECMDGOALS))" ); do \
		echo $$PKG; \
		$(GO_TEST) $$PKG; \
	done

vet:
	go vet ./...

cmd/%: prepare_dir fmt
	$(GO_BUILD) -o $(BIN_DIR)/$(shell basename $@) $(REPO_PREFIX)/$@


pkg/%: prepare_dir fmt
	$(GO_INSTALL) $(REPO_PREFIX)/$@


# a hack
rpm:
	$(MAKE) $(patsubst %,cmd/%,$(filter-out $@,$(MAKECMDGOALS)))
	$(foreach cmd,$(filter-out $@,$(MAKECMDGOALS)),$(BUILD_SCRIPT) $(cmd);)

rpmclean:
	rm -fr $(BUILD_DIR)/rpms

prepare_dir: bin_dir


bin_dir: output_dir
	@mkdir -p $(BUILD_DIR)/bin


output_dir:
	@mkdir -p $(BUILD_DIR)

dep_clean:
	rm -fr $(GOPATH)/pkg/dep/sources/*

dep_install:
	curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh


.PHONY: all build prepare_dir clean fmt rpm


clean:
	@rm -fr $(BUILD_DIR)


fmt:
	@find . -type f -name "*.go" -not -path "./_output/*" \
		-not -path "./vendor/*" | xargs gofmt -s -w

dep:
	cd $(ROOT_DIR) && dep ensure -v -update $(shell for p in $$(ls vendor/yunion.io/x/); do echo "yunion.io/x/$$p"; done | xargs)

%:
	@: