Makefile updates

Makefile

@@ -7,6 +7,13 @@ GOTOOL := env "GOBIN=$(GOBIN)" "PATH=$(ROOT_DIR)/.bin:$(PATH)"
 
 # -----------------------------------------------------------------------------
 
+.PHONY: vendor
+vendor: go.mod go.sum
+	@go mod vendor
+
+.bin:
+	@mkdir -p "$(GOBIN)" || true
+
 .PHONY: all
 all: build
 
@@ -31,23 +38,29 @@ clean:
 lint:
 	@$(GOTOOL) golangci-lint run
 
+.PHONY: fmt
+fmt:
+	@$(GOTOOL) gofumpt -w -s -extra "$(ROOT_DIR)"
+
 .PHONY: doc
 doc:
 	@$(GOTOOL) godoc -http 0.0.0.0:10000
 
 .PHONY: install-tools
-install-tools: install-tools-lint install-tools-godoc
+install-tools: install-tools-lint install-tools-godoc install-tools-gofumpt
 
 .PHONY: install-tools-lint
-install-tools-lint:
-	@mkdir -p "$(GOBIN)" || true && \
-		curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh \
+install-tools-lint: .bin
+	@curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh \
 		| bash -s -- -b "$(GOBIN)" "$(GOLANGCI_LINT_VERSION)"
 
 .PHONY: install-tools-godoc
-install-tools-godoc:
-	@mkdir -p "$(GOBIN)" || true && \
-		$(GOTOOL) go get -u golang.org/x/tools/cmd/godoc
+install-tools-godoc: .bin
+	@$(GOTOOL) go get -u golang.org/x/tools/cmd/godoc
+
+.PHONY: install-tools-gofumpt
+install-tools-gofumpt: .bin
+	@$(GOTOOL) go get -u mvdan.cc/gofumpt
 
 .PHONY: upgrade-deps
 upgrade-deps: