Makefile

SHELL = /bin/bash
OS = $(shell uname -s | tr '[:upper:]' '[:lower:]')

# Build variables
COMMIT ?= $(shell git rev-parse HEAD 2>/dev/null)
BUILD_DATE ?= $(shell date +%FT%T%z)

# Go variables
export CGO_ENABLED ?= 0
export GOOS ?= $(OS)
export GOARCH ?= amd64
GOFILES_NOVENDOR = $(shell find . -type f -name '*.go' -not -path "./vendor/*")

.PHONY: vendor
vendor: # Vendor all deps
	@go mod vendor

.PHONY: lint
lint: export GOFLAGS=-mod=vendor
lint: golangci-lint fmt ## Lint the source
	@$(GOLANGCI_LINT) run --timeout 5m0s

.PHONY: fmt
fmt: ## Format the source
	@gofmt -s -w $(GOFILES_NOVENDOR)

.PHONY: test
test: fmt ## Run unit tests
	set -o pipefail; go list -mod=vendor ./pkg/... | xargs -n1 go test -mod=vendor -ldflags "$(LDFLAGS)" -v -parallel 1

golangci-lint: ## Install golangci
ifeq (, $(shell which golangci-lint))
	@{ \
	set -e ;\
	GOLANGCI_TMP_DIR=$$(mktemp -d) ;\
	cd $$GOLANGCI_TMP_DIR ;\
	go mod init tmp ;\
	go get github.com/golangci/golangci-lint/cmd/golangci-lint@v1.33.0 ;\
	rm -rf $$GOLANGCI_TMP_DIR ;\
	}
GOLANGCI_LINT=$(GOBIN)/golangci-lint
else
GOLANGCI_LINT=$(shell which golangci-lint)
endif

.PHONY: list
list: ## List all make targets
	@$(MAKE) -pRrn : -f $(MAKEFILE_LIST) 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' | egrep -v -e '^[^[:alnum:]]' -e '^$@$$' | sort

.PHONY: help
.DEFAULT_GOAL := help
help: ## Get help output
	@grep -h -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'

# Variable outputting/exporting rules
var-%: ; @echo $($*)
varexport-%: ; @echo $*=$($*)