Makefile

.PHONY: deps test lint lint-check-deps ci-check run-migrations

deps: 
	@if [ "$(go mod help | echo 'no-mod')" = "no-mod" ] || [ "${GO111MODULE}" = "off" ]; then \
		echo "[dep] fetching package dependencies";\
		go get -u github.com/golang/dep/cmd/dep;\
		dep ensure;\
	else \
		go get ./...; \
	fi

test: 
	@echo "[go test] running tests and collecting coverage metrics"
	@go test -v -tags all_tests -race -coverprofile=coverage.txt -covermode=atomic ./...

lint: lint-check-deps
	@echo "[golangci-lint] linting sources"
	@golangci-lint run \
		-E misspell \
		-E golint \
		-E gofmt \
		-E unconvert \
		--exclude-use-default=false \
		-e SA1019 \
		--timeout 5m \
		./...

lint-check-deps:
	@if [ -z `which golangci-lint` ]; then \
		echo "[go get] installing golangci-lint";\
		GO111MODULE=on go get -u github.com/golangci/golangci-lint/cmd/golangci-lint;\
	fi

ci-check: deps lint run-cdb-migrations test

run-db-migrations: run-cdb-migrations

# CH06: CockroachDB migrations
.PHONY: run-cdb-migrations migrate-check-deps check-cdb-env

run-cdb-migrations: migrate-check-deps check-cdb-env
	migrate -source file://Chapter06/linkgraph/store/cdb/migrations -database '$(subst postgresql,cockroach,${CDB_DSN})' up

migrate-check-deps:
	@if [ -z `which migrate` ]; then \
		echo "[go get] installing golang-migrate cmd with cockroachdb support";\
		if [ "${GO111MODULE}" = "off" ]; then \
			echo "[go get] installing github.com/golang-migrate/migrate/cmd/migrate"; \
			go get -tags 'cockroachdb postgres' -u github.com/golang-migrate/migrate/cmd/migrate;\
			go install -tags 'cockroachdb postgres' github.com/golang-migrate/migrate/cmd/migrate;\
		else \
			echo "[go get] installing github.com/golang-migrate/migrate/v4/cmd/migrate"; \
			go get -tags 'cockroachdb postgres' -u github.com/golang-migrate/migrate/v4/cmd/migrate;\
			go install -tags 'cockroachdb postgres' github.com/golang-migrate/migrate/v4/cmd/migrate;\
		fi \
	fi


define dsn_missing_error

CDB_DSN envvar is undefined. To run the migrations this envvar
must point to a cockroach db instance. For example, if you are
running a local cockroachdb (with --insecure) and have created
a database called 'linkgraph' you can define the envvar by 
running:

export CDB_DSN='postgresql://root@localhost:26257/linkgraph?sslmode=disable'

endef
export dsn_missing_error

check-cdb-env:
ifndef CDB_DSN
	$(error ${dsn_missing_error})
endif