Address linter issues

mux.go

@@ -12,10 +12,6 @@ import (
 	"github.com/restic/rest-server/quota"
 )
 
-const (
-	GiB = 1024 * 1024 * 1024
-)
-
 func (s *Server) debugHandler(next http.Handler) http.Handler {
 	return http.HandlerFunc(
 		func(w http.ResponseWriter, r *http.Request) {
@@ -70,6 +66,8 @@ func NewHandler(server *Server) (http.Handler, error) {
 		}
 	}
 
+	const GiB = 1024 * 1024 * 1024
+
 	if server.MaxRepoSize > 0 {
 		log.Printf("Initializing quota (can take a while)...")
 		qm, err := quota.New(server.Path, server.MaxRepoSize)

repo/repo.go

@@ -93,9 +93,10 @@ func isHashed(objectType string) bool {
 	return objectType == "data"
 }
 
-// BlobOperation describe the current blob operation in the BlobMetricFunc callback
+// BlobOperation describe the current blob operation in the BlobMetricFunc callback.
 type BlobOperation byte
 
+// Define all valid operations.
 const (
 	BlobRead   = 'R' // A blob has been read
 	BlobWrite  = 'W' // A blob has been written
@@ -146,8 +147,10 @@ func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			default:
 				httpMethodNotAllowed(w, []string{"GET"})
 			}
+
 			return
-		} else {
+		}
+
 		switch r.Method {
 		case "HEAD":
 			h.checkBlob(w, r)
@@ -160,9 +163,9 @@ func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		default:
 			httpMethodNotAllowed(w, []string{"HEAD", "GET", "POST", "DELETE"})
 		}
+
 		return
 	}
-	}
 	httpDefaultError(w, http.StatusNotFound)
 }