Add Makefile (#99)

Add a Makefile to simplify build and test.

Signed-off-by: Ben Kochie <superq@gmail.com>

.circleci/config.yml

@@ -11,9 +11,7 @@ jobs:
     steps:
       - checkout
       - run: go mod download
-      - run: go vet ./...
-      - run: go test ./... -cover -race
-      - run: go build -race ./cmd/ping
+      - run: make
       - run: curl -sfL https://install.goreleaser.com/github.com/goreleaser/goreleaser.sh | BINDIR=/home/circleci/.local/bin sh
       - run: goreleaser release --skip-publish --snapshot
       - store_artifacts:

Makefile

@@ -0,0 +1,32 @@
+GO           ?= go
+GOFMT        ?= $(GO)fmt
+GOOPTS       ?=
+GO111MODULE  :=
+pkgs          = ./...
+
+all: style vet build test
+
+.PHONY: build
+build:
+	@echo ">> building ping"
+	GO111MODULE=$(GO111MODULE) $(GO) build $(GOOPTS) ./cmd/ping
+
+.PHONY: style
+style:
+	@echo ">> checking code style"
+	@fmtRes=$$($(GOFMT) -d $$(find . -path ./vendor -prune -o -name '*.go' -print)); \
+	if [ -n "$${fmtRes}" ]; then \
+		echo "gofmt checking failed!"; echo "$${fmtRes}"; echo; \
+		echo "Please ensure you are using $$($(GO) version) for formatting code."; \
+		exit 1; \
+	fi
+
+.PHONY: test
+test:
+	@echo ">> running all tests"
+	GO111MODULE=$(GO111MODULE) $(GO) test -race -cover $(GOOPTS) $(pkgs)
+
+.PHONY: vet
+vet:
+	@echo ">> vetting code"
+	GO111MODULE=$(GO111MODULE) $(GO) vet $(GOOPTS) $(pkgs)