Support make fmt-faster to only fmt with the changed files (#1940)

* example readjust: tencentcloud_kubernetes_serverless_node_pool

* faster the make fmt

Author: lyu571

GNUmakefile

@@ -1,6 +1,7 @@
 TEST?=./...
 GOFMT_FILES?=$$(find . -name '*.go' |grep -v vendor)
 PKG_NAME=tencentcloud
+CHANGED_FILES=$$(git diff --name-only master -- $(PKG_NAME))
 WEBSITE_REPO=github.com/hashicorp/terraform-website
 PLATFORMS=darwin/amd64 freebsd/386 freebsd/amd64 freebsd/arm linux/386 linux/amd64 linux/arm openbsd/amd64 openbsd/386 solaris/amd64 windows/386 windows/amd64
 GO_VER ?= go
@@ -25,6 +26,11 @@ fmt:
 	goimports -w ./$(PKG_NAME)
 	gofmt -s -w ./$(PKG_NAME)
 
+fmt-faster:
+	@echo "==> [Faster]Fixing source code with gofmt...\n $(CHANGED_FILES) \n"
+	goimports -w $(CHANGED_FILES)
+	gofmt -s -w $(CHANGED_FILES)
+
 # Currently required by tf-deploy compile
 fmtcheck:
 	@sh -c "'$(CURDIR)/scripts/gofmtcheck.sh'"