chore: use wg.Go instead of add

opencloud/pkg/backup/provider.go

@@ -75,25 +75,20 @@ func (dp *DataProvider) ProduceData() error {
 	wg := sync.WaitGroup{}
 
 	// crawl spaces
-	wg.Add(1)
-	go func() {
+	wg.Go(func() {
 		for _, d := range dirs {
 			dp.evaluateNodeDir(d)
 		}
-		wg.Done()
-	}()
+	})
 
 	// crawl trash
-	wg.Add(1)
-	go func() {
+	wg.Go(func() {
 		dp.evaluateTrashDir()
-		wg.Done()
-	}()
+	})
 
 	// crawl blobstore
 	if !dp.skipBlobs {
-		wg.Add(1)
-		go func() {
+		wg.Go(func() {
 			bs, err := dp.lbs.List()
 			if err != nil {
 				fmt.Println("error listing blobs", err)
@@ -102,8 +97,7 @@ func (dp *DataProvider) ProduceData() error {
 			for _, bn := range bs {
 				dp.Events <- BlobData{BlobPath: dp.lbs.Path(bn)}
 			}
-			wg.Done()
-		}()
+		})
 	}
 
 	// wait for all crawlers to finish

opencloud/pkg/revisions/revisions.go

@@ -227,13 +227,11 @@ func listFolder(path string, ch chan<- string, workers chan struct{}) error {
 
 	for _, child := range children {
 		if child.IsDir() {
-			wg.Add(1)
-			go func() {
-				defer wg.Done()
+			wg.Go(func() {
 				if err := listFolder(filepath.Join(path, child.Name()), ch, workers); err != nil {
 					fmt.Println("error listing", path, err)
 				}
-			}()
+			})
 		}
 
 		if _versionRegex.MatchString(child.Name()) {

opencloud/pkg/runtime/service/service.go

@@ -526,9 +526,7 @@ func trapShutdownCtx(s *Service, srv *http.Server, ctx context.Context) error {
 	s.Log.Info().Msg("starting graceful shutdown")
 	start := time.Now()
 	wg := sync.WaitGroup{}
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	wg.Go(func() {
 		ctx, cancel := context.WithTimeout(context.Background(), _defaultShutdownTimeoutDuration)
 		defer cancel()
 		s.Log.Debug().Msg("starting runtime listener shutdown")
@@ -537,7 +535,7 @@ func trapShutdownCtx(s *Service, srv *http.Server, ctx context.Context) error {
 			return
 		}
 		s.Log.Debug().Msg("runtime listener shutdown done")
-	}()
+	})
 
 	// shutdown services in the order defined in the config
 	// any services not listed will be shutdown in parallel afterwards