Makefile: initial setup 🌮

Signed-off-by: Vincent Demeester <vdemeest@redhat.com>

.gitignore

@@ -47,4 +47,5 @@
 cmd/*/kodata/source.tar.gz
 
 # binaries
-test/pullrequest/pullrequest-init
+test/pullrequest/pullrequest-init
+/.bin/

Makefile

@@ -0,0 +1,111 @@
+MODULE   = $(shell env GO111MODULE=on $(GO) list -m)
+DATE    ?= $(shell date +%FT%T%z)
+VERSION ?= $(shell git describe --tags --always --dirty --match=v* 2> /dev/null || \
+			cat $(CURDIR)/.version 2> /dev/null || echo v0)
+PKGS     = $(or $(PKG),$(shell env GO111MODULE=on $(GO) list ./...))
+TESTPKGS = $(shell env GO111MODULE=on $(GO) list -f \
+			'{{ if or .TestGoFiles .XTestGoFiles }}{{ .ImportPath }}{{ end }}' \
+			$(PKGS))
+BIN      = $(CURDIR)/.bin
+
+GOLANGCI_VERSION = v1.24.0
+
+GO           = go
+TIMEOUT_UNIT = 5m
+TIMEOUT_E2E  = 20m
+V = 0
+Q = $(if $(filter 1,$V),,@)
+M = $(shell printf "\033[34;1m🐱\033[0m")
+
+export GO111MODULE=on
+
+.PHONY: all
+all: fmt lint | $(BIN) ; $(info $(M) building executable…) @ ## Build program binary
+	$Q $(GO) build \
+		-tags release \
+		-ldflags '-X $(MODULE)/cmd.Version=$(VERSION) -X $(MODULE)/cmd.BuildDate=$(DATE)' \
+		-o $(BIN)/$(basename $(MODULE)) main.go
+
+$(BIN):
+	@mkdir -p $@
+$(BIN)/%: | $(BIN) ; $(info $(M) building $(PACKAGE)…)
+	$Q tmp=$$(mktemp -d); \
+	   env GO111MODULE=off GOPATH=$$tmp GOBIN=$(BIN) $(GO) get $(PACKAGE) \
+		|| ret=$$?; \
+	   rm -rf $$tmp ; exit $$ret
+
+KO = $(BIN)/ko
+$(BIN)/ko: PACKAGE=github.com/google/ko/cmd/ko
+
+.PHONY: apply
+apply: | $(KO) ; $(info $(M) ko apply -f config/) @ ## Apply config to the current cluster
+	$Q $(KO) apply --strict -f config
+
+TEST_UNIT_TARGETS := test-unit-verbose test-unit-race
+test-unit-verbose: ARGS=-v
+test-unit-race:    ARGS=-race
+$(TEST_UNIT_TARGETS): test-unit
+.PHONY: $(TEST_UNIT_TARGETS) test-unit
+test-unit: ## Run unit tests
+	$(GO) test -timeout $(TIMEOUT_UNIT) $(ARGS) ./...
+
+TEST_E2E_TARGETS := test-e2e-short test-e2e-verbose test-e2e-race
+test-e2e-short:   ARGS=-short
+test-e2e-verbose: ARGS=-v
+test-e2e-race:    ARGS=-race
+$(TEST_E2E_TARGETS): test-e2e
+.PHONY: $(TEST_E2E_TARGETS) test-e2e
+test-e2e:  ## Run end-to-end tests
+	$(GO) test -timeout $(TIMEOUT_E2E) -tags e2e $(ARGS) ./test/...
+
+.PHONY: test-yamls
+test-yamls: ## Run yaml tests
+	./test/e2e-tests-yaml.sh --run-tests
+
+.PHONY: check tests
+check tests: test-unit test-e2e test-yamls
+
+RAM = $(BIN)/ram
+$(BIN)/ram: PACKAGE=github.com/vdemeester/ram
+
+.PHONY: watch-test
+watch-test: | $(RAM) ; $(info $(M) watch and run tests) @ ## Watch and run tests
+	$Q $(RAM) -- -failfast
+
+.PHONY: watch-config
+watch-config: | $(KO) ; $(info $(M) watch and apply config) @ ## Watch and apply to the current cluster
+	$Q $(KO) apply --strict -W -f config
+
+GOLINT = $(BIN)/golint
+$(BIN)/golint: PACKAGE=golang.org/x/lint/golint
+
+.PHONY: golint
+golint: | $(GOLINT) ; $(info $(M) running golint…) @ ## Run golint
+	$Q $(GOLINT) -set_exit_status $(PKGS)
+
+GOLANGCILINT= $(BIN)/golangci-lint
+$(BIN)/golangci-lint: ; $(info $(M) getting golangci-lint $(GOLANGCI_VERSION))
+	@curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(BIN) $(GOLANGCI_VERSION)
+
+.PHONY: golangci-lint
+golangci-lint: | $(GOLANGCILINT) ; $(info $(M) running golangci-lint) @ ## Run golangci-lint
+	$Q $(GOLANGCILINT) run --modules-download-mode=vendor --max-issues-per-linter=0 --max-same-issues=0 --deadline 5m
+
+.PHONY: fmt
+fmt: ; $(info $(M) running gofmt…) @ ## Run gofmt on all source files
+	$Q $(GO) fmt $(PKGS)
+# Misc
+
+.PHONY: clean
+clean: ; $(info $(M) cleaning…)	@ ## Cleanup everything
+	@rm -rf $(BIN)
+	@rm -rf test/tests.* test/coverage.*
+
+.PHONY: help
+help:
+	@grep -hE '^[ a-zA-Z0-9_-]+:.*?## .*$$' $(MAKEFILE_LIST) | \
+		awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-17s\033[0m %s\n", $$1, $$2}'
+
+.PHONY: version
+version:
+	@echo $(VERSION)