Publish an example testing go code with Postgres

Makefile

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+.DEFAULT_GOAL := help
+
+COVER_FILE ?= coverage.out
+
+.PHONY: build
+build: ## Build a command to quickly check compiles.
+	@go build ./...
+
+.PHONY: check
+check: lint build test ## Runs all necessary code checks.
+
+.PHONY: test
+test: ## Run all tests.
+	@go test -race -count=1 -coverprofile=$(COVER_FILE) ./...
+	@go tool cover -func=$(COVER_FILE) | grep ^total | tr -s '\t'
+
+.PHONY: test-short
+test-short: ## Run only unit tests, tests without I/O dependencies.
+	@go test -short ./...
+
+.PHONY: test-env-up
+test-env-up: ## Run test environment.
+	@docker-compose up migrate
+
+.PHONY: test-env-down
+test-env-down: ## Down and cleanup test environment.
+	@docker-compose down -v
+
+.PHONY: lint
+lint: tools ## Check the project with lint.
+	@golangci-lint run \
+  --fix \
+  --disable-all \
+  -E errcheck \
+  -E godot \
+  -E goimports \
+  -E gosimple \
+  -E govet \
+  -E ineffassign \
+  -E misspell \
+  -E staticcheck \
+  -E typecheck \
+  -E unused \
+  -E whitespace \
+  ./...
+
+tools: ## Install all needed tools, e.g.
+	@go install -v github.com/golangci/golangci-lint/cmd/golangci-lint@v1.53.2
+
+.PHONY: help
+help: ## Show help for each of the Makefile targets.
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'