chore(makefile): add formats check (swaggo#317)

.travis.yml

@@ -17,6 +17,7 @@ install:
   - if [[ "${GO111MODULE}" = "on" ]]; then make tools; fi
 
 script:
+  - make fmt-check
   - make lint
   - make build
   - make test

Makefile

@@ -1,13 +1,16 @@
 GOCMD=$(shell which go)
 GOLINT=$(shell which golint)
 GOIMPORT=$(shell which goimports)
+GOFMT =$(shell which gofmt)
 GOBUILD=$(GOCMD) build
 GOCLEAN=$(GOCMD) clean
 GOTEST=$(GOCMD) test
 GOGET=$(GOCMD) get
 GOLIST=$(GOCMD) list
+
 BINARY_NAME=swag
 PACKAGES=$(shell $(GOLIST) ./... | grep -v /example)
+GOFILES := $(shell find . -name "*.go" -type f)
 
 all: test build
 
@@ -53,6 +56,19 @@ lint:
 
 	for PKG in $(PACKAGES); do golint -set_exit_status $$PKG || exit 1; done;
 
+.PHONY: fmt
+fmt:
+	$(GOFMT) -s -w $(GOFILES)
+
+.PHONY: fmt-check
+fmt-check:
+	@diff=$$($(GOFMT) -s -d $(GOFILES)); \
+	if [ -n "$$diff" ]; then \
+		echo "Please run 'make fmt' and commit the result:"; \
+		echo "$${diff}"; \
+		exit 1; \
+	fi;
+
 .PHONY: view-covered
 view-covered:
 	$(GOTEST) -coverprofile=cover.out $(TARGET)

example/celler/model/account.go

@@ -95,7 +95,7 @@ func (a Account) Update() error {
 
 var accountMaxID = 3
 var accounts = []Account{
-	Account{ID: 1, Name: "account_1"},
-	Account{ID: 2, Name: "account_2"},
-	Account{ID: 3, Name: "account_3"},
+	{ID: 1, Name: "account_1"},
+	{ID: 2, Name: "account_2"},
+	{ID: 3, Name: "account_3"},
 }

example/celler/model/bottle.go

@@ -20,7 +20,7 @@ func BottleOne(id int) (*Bottle, error) {
 }
 
 var bottles = []Bottle{
-	Bottle{ID: 1, Name: "bottle_1", Account: Account{ID: 1, Name: "accout_1"}},
-	Bottle{ID: 2, Name: "bottle_2", Account: Account{ID: 2, Name: "accout_2"}},
-	Bottle{ID: 3, Name: "bottle_3", Account: Account{ID: 3, Name: "accout_3"}},
+	{ID: 1, Name: "bottle_1", Account: Account{ID: 1, Name: "accout_1"}},
+	{ID: 2, Name: "bottle_2", Account: Account{ID: 2, Name: "accout_2"}},
+	{ID: 3, Name: "bottle_3", Account: Account{ID: 3, Name: "accout_3"}},
 }

testdata/composition/common/response.go

@@ -1,6 +1,5 @@
 package common
 
-
 type ResponseFormat struct {
 	Message string `json:"message"`
-}
+}