Makefile

# Make functions strip spaces and use commas to separate parameters. The below variables escape these characters.
comma := ,
space :=
space +=

goimports := golang.org/x/tools/cmd/goimports@v0.1.12
golangci_lint := github.com/golangci/golangci-lint/cmd/golangci-lint@v1.49.0

# Make 3.81 doesn't support '**' globbing: Set explicitly instead of recursion.
all_sources   := $(wildcard *.go */*.go */*/*.go */*/*/*.go */*/*/*.go */*/*/*/*.go)
all_testdata  := $(wildcard testdata/* */testdata/* */*/testdata/* */*/testdata/*/* */*/*/testdata/*)
all_testing   := $(wildcard internal/testing/* internal/testing/*/* internal/testing/*/*/*)
# main_sources exclude any test or example related code
main_sources  := $(wildcard $(filter-out %_test.go $(all_testdata) $(all_testing), $(all_sources)))
# main_packages collect the unique main source directories (sort will dedupe).
# Paths need to all start with ./, so we do that manually vs foreach which strips it.
main_packages := $(sort $(foreach f,$(dir $(main_sources)),$(if $(findstring ./,$(f)),./,./$(f))))

.PHONY: test
test:
	@go test ./... -timeout 120s

.PHONY: coverage
coverpkg = $(subst $(space),$(comma),$(main_packages))
coverage: ## Generate test coverage
	@go test -coverprofile=coverage.txt -covermode=atomic --coverpkg=$(coverpkg) $(main_packages)
	@go tool cover -func coverage.txt

golangci_lint_path := $(shell go env GOPATH)/bin/golangci-lint

$(golangci_lint_path):
	@go install $(golangci_lint)

golangci_lint_goarch ?= $(shell go env GOARCH)

.PHONY: lint
lint: $(golangci_lint_path)
	@GOARCH=$(golangci_lint_goarch) CGO_ENABLED=0 $(golangci_lint_path) run --timeout 5m

.PHONY: format
format:
	@find . -type f -name '*.go' | xargs gofmt -s -w
	@for f in `find . -name '*.go'`; do \
	    awk '/^import \($$/,/^\)$$/{if($$0=="")next}{print}' $$f > /tmp/fmt; \
	    mv /tmp/fmt $$f; \
	done
	@go run $(goimports) -w -local github.com/tetratelabs/wabin `find . -name '*.go'`

.PHONY: check
check:
	@$(MAKE) lint golangci_lint_goarch=arm64
	@$(MAKE) lint golangci_lint_goarch=amd64
	@$(MAKE) format
	@go mod tidy
	@if [ ! -z "`git status -s`" ]; then \
		echo "The following differences will fail CI until committed:"; \
		git diff --exit-code; \
	fi

.PHONY: clean
clean: ## Ensure a clean build
	@rm -rf dist build coverage.txt
	@go clean -testcache