hs-test: added go style targets

- added checkstyle-go and fixstyle-go
- comments in stats_fs.go were missing a space

Type: make

Change-Id: I520acab5ff61eaf9d0ccfd9425bdc41f74559198
Signed-off-by: Adrian Villin <avillin@cisco.com>

Makefile

@@ -777,6 +777,14 @@ checkstyle-test:
 checkstyle-python:
 	@$(MAKE) -C test checkstyle-python-all
 
+.PHONY: checkstyle-go
+checkstyle-go:
+	@$(MAKE) -C extras/hs-test checkstyle-go
+
+.PHONY: fixstyle-go
+fixstyle-go:
+	@$(MAKE) -C extras/hs-test fixstyle-go
+
 .PHONY: checkstyle-all
 checkstyle-all: checkstyle-commit checkstyle checkstyle-python docs-spell
 

extras/hs-test/Makefile

@@ -1,5 +1,10 @@
 export HS_ROOT=$(CURDIR)
 
+# sets WS_ROOT if called from extras/hs-test
+ifeq ($(WS_ROOT),)
+export WS_ROOT=$(HS_ROOT)/../..
+endif
+
 ifeq ($(VERBOSE),)
 VERBOSE=false
 endif
@@ -60,7 +65,8 @@ help:
 	@echo " build-cov			 - coverage build of VPP and Docker images"
 	@echo " build-debug          - build test infra (vpp debug image)"
 	@echo " build-go             - just build golang files"
-	@echo " fixstyle             - format .go source files"
+	@echo " checkstyle-go        - check style of .go source files"
+	@echo " fixstyle-go          - format .go source files"
 	@echo " list-tests           - list all tests"
 	@echo
 	@echo "make build arguments:"
@@ -171,7 +177,26 @@ install-deps:
 	fi
 	@touch .deps.ok
 
-.PHONY: fixstyle
-fixstyle:
-	@gofmt -w .
+.PHONY: checkstyle-go
+checkstyle-go:
+	@output=$$(gofmt -d $${WS_ROOT}); \
+    if [ -z "$$output" ]; then \
+        echo "*******************************************************************"; \
+        echo "Checkstyle OK."; \
+        echo "*******************************************************************"; \
+    else \
+        echo "$$output"; \
+        echo "*******************************************************************"; \
+        echo "Checkstyle failed. Use 'make fixstyle-go' or fix errors manually."; \
+        echo "*******************************************************************"; \
+        exit 1; \
+    fi
+
+.PHONY: fixstyle-go
+fixstyle-go:
+	@echo "Modified files:"
+	@gofmt -w -l $(WS_ROOT)
 	@go mod tidy
+	@echo "*******************************************************************"
+	@echo "Fixstyle done."
+	@echo "*******************************************************************"

extras/vpp_stats_fs/stats_fs.go

@@ -132,7 +132,7 @@ func getCounterContent(index uint32, client *statsclient.StatsClient) (content s
 	return content, fs.OK
 }
 
-//The dirNode structure represents directories
+// The dirNode structure represents directories
 type dirNode struct {
 	fs.Inode
 	client *statsclient.StatsClient
@@ -175,7 +175,7 @@ func (dn *dirNode) Opendir(ctx context.Context) syscall.Errno {
 	return status
 }
 
-//The statNode structure represents counters
+// The statNode structure represents counters
 type statNode struct {
 	fs.Inode
 	client *statsclient.StatsClient
@@ -192,7 +192,7 @@ func (fh *statNode) Getattr(ctx context.Context, f fs.FileHandle, out *fuse.Attr
 	return 0
 }
 
-//When a file is opened, the correpsonding counter value is dumped and a file handle is created
+// When a file is opened, the correpsonding counter value is dumped and a file handle is created
 func (sn *statNode) Open(ctx context.Context, flags uint32) (fs.FileHandle, uint32, syscall.Errno) {
 	content, status := getCounterContent(sn.index, sn.client)
 	if status == syscall.ENOENT {
@@ -220,7 +220,7 @@ func (fh *statFH) Read(ctx context.Context, data []byte, off int64) (fuse.ReadRe
 	return fuse.ReadResultData(fh.data[off:end]), fs.OK
 }
 
-//NewStatsFileSystem creates the fs for the stat segment.
+// NewStatsFileSystem creates the fs for the stat segment.
 func NewStatsFileSystem(sc *statsclient.StatsClient) (root fs.InodeEmbedder, err error) {
 	return &dirNode{client: sc}, nil
 }