Makefile: add targets for macOS-arm64 and linux-amd64

Makefile

@@ -1,9 +1,31 @@
 VERSION ?= dev
 BINARY_NAME = puff
+RELEASE_DIR = dist
+RELEASE_BUILD_FLAGS=-v -ldflags "-w -s -X main.version=$(VERSION)" -trimpath
 
 build:
 	go vet ./...
-	go build -ldflags "-X main.version=$(VERSION)" -o $(BINARY_NAME)
+	go build -o $(BINARY_NAME)
+
+release-darwin-arm64: require-version
+	@echo "Building for darwin-arm64"
+	rm -rf $(RELEASE_DIR)
+	go vet ./...
+	CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build ${RELEASE_BUILD_FLAGS} -o $(RELEASE_DIR)/$(BINARY_NAME)
+	tar -czvf $(BINARY_NAME)-$(VERSION)-darwin-arm64.tar.gz -C $(RELEASE_DIR) $(BINARY_NAME)
+
+release-linux-amd64: require-version
+	@echo "Building for linux-amd64"
+	rm -rf $(RELEASE_DIR)
+	go vet ./...
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build ${RELEASE_BUILD_FLAGS} -o $(RELEASE_DIR)/$(BINARY_NAME)
+	tar -czvf $(BINARY_NAME)-$(VERSION)-linux-amd64.tar.gz -C $(RELEASE_DIR) $(BINARY_NAME)
+
+require-version:
+	@if [ "$(VERSION)" = "dev" ]; then \
+		echo "You must set the VERSION"; \
+		exit 1; \
+	fi
 
 clean:
 	git clean -fd