VERSION := $(shell git rev-parse --short HEAD)
# Image URL to use all building/pushing image targets
IMG ?= oceanbase/ob-operator:1.1.0
# Produce CRDs that work back to Kubernetes 1.11 (no version conversion)
CRD_OPTIONS ?= "crd:trivialVersions=true,preserveUnknownFields=false"

# Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
ifeq (,$(shell go env GOBIN))
GOBIN=$(shell go env GOPATH)/bin
else
GOBIN=$(shell go env GOBIN)
endif

# Setting SHELL to bash allows bash commands to be executed by recipes.
# This is a requirement for 'setup-envtest.sh' in the test target.
# Options are set to exit when a recipe line exits non-zero or a piped command fails.
SHELL = /usr/bin/env bash -o pipefail
.SHELLFLAGS = -ec

# go-get-tool will 'go get' any package $2 and install it to $1.
PROJECT_DIR := $(shell dirname $(abspath $(lastword $(MAKEFILE_LIST))))
define go-get-tool
@[ -f $(1) ] || { \
set -e ;\
TMP_DIR=$$(mktemp -d) ;\
cd $$TMP_DIR ;\
go mod init tmp ;\
echo "Downloading $(2)" ;\
GOBIN=$(PROJECT_DIR)/bin go get $(2) ;\
rm -rf $$TMP_DIR ;\
}
endef

all: build

##@ General

# The help target prints out all targets with their descriptions organized beneath their categories.
# The categories are represented by '##@' and the target descriptions by '##'.
# The awk commands is responsible for reading the entire set of makefiles included in this invocation, looking for lines of the file as xyz: ## something, and then pretty-format the target and help.
# Then, if there's a line with ##@ something, that gets pretty-printed as a category.
# More info on the usage of ANSI control characters for terminal formatting:
# https://en.wikipedia.org/wiki/ANSI_escape_code#SGR_parameters
# More info on the awk command:
# http://linuxcommand.org/lc3_adv_awk.php

help: ## Display this help.
	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z_0-9-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)

##@ Generate

CONTROLLER_GEN = $(shell pwd)/bin/controller-gen
controller-gen: ## Download controller-gen locally if necessary.
	$(call go-get-tool,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/controller-gen@v0.4.1)

manifests: controller-gen ## Generate WebhookConfiguration, ClusterRole and CustomResourceDefinition objects.
	go mod tidy
	$(CONTROLLER_GEN) $(CRD_OPTIONS) rbac:roleName=manager-role webhook paths="./..." output:crd:artifacts:config=config/crd/bases

KUSTOMIZE = $(shell pwd)/bin/kustomize
kustomize: ## Download kustomize locally if necessary.
	$(call go-get-tool,$(KUSTOMIZE),sigs.k8s.io/kustomize/kustomize/v3@v3.8.7)

generate: controller-gen ## Generate code containing DeepCopy, DeepCopyInto and DeepCopyObject method implementations.
	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."

generate-client: ## Generate kube-client.
	sh hack/update-codegen.sh

fmt: ## Run go fmt against code.
	go fmt ./...

vet: ## Run go vet against code.
	go vet ./...

generate-all: manifests kustomize generate fmt vet ## Generate all, include controller & client.

##@ Build

local-build: generate fmt vet ## Build manager binary.
	go build -o bin/manager main.go

docker-build: ## Build docker image with the manager.
	docker build -t ${IMG} .

docker-push: ## Push docker image with the manager.
	docker push ${IMG}

##@ Deployment

install: manifests kustomize ## Install CRDs into the K8s cluster specified in ~/.kube/config.
	$(KUSTOMIZE) build config/crd | kubectl apply -f -

uninstall: manifests kustomize ## Uninstall CRDs from the K8s cluster specified in ~/.kube/config.
	$(KUSTOMIZE) build config/crd | kubectl delete -f -

deploy: manifests kustomize ## Deploy controller to the K8s cluster specified in ~/.kube/config.
	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
	$(KUSTOMIZE) build config/default | kubectl apply -f -

undeploy: ## Undeploy controller from the K8s cluster specified in ~/.kube/config.
	$(KUSTOMIZE) build config/default | kubectl delete -f -

##@ Export

export-crd: manifests kustomize ## Export CDR yaml.
	$(KUSTOMIZE) build config/crd > deploy/crd.yaml

export-operator: manifests kustomize # docker-build docker-push ## Export operator yaml.
	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
	$(KUSTOMIZE) build config/default > deploy/operator.yaml

##@ Debug

run-local: install ## Run for debug.
	go run ./main.go

run-remote: docker-build docker-push deploy ## Run on cluster.