Fix linting error: rewrite if-else to switch statement

Author: ciaranjohnston

internal/util/get/get.go

@@ -71,12 +71,13 @@ func (c Command) Run(ctx context.Context) error {
 	}
 
 	destInfo, err := os.Stat(c.Destination)
-	if err == nil {
+	switch {
+	case err == nil:
 		// Destination exists - check if it's an empty directory
 		if !destInfo.IsDir() {
 			return errors.E(op, errors.Exist, types.UniquePath(c.Destination), fmt.Errorf("destination exists and is not a directory"))
 		}
-		
+
 		// Check if directory is empty
 		entries, err := os.ReadDir(c.Destination)
 		if err != nil {
@@ -86,14 +87,14 @@ func (c Command) Run(ctx context.Context) error {
 			return errors.E(op, errors.Exist, types.UniquePath(c.Destination), fmt.Errorf("destination directory already exists"))
 		}
 		// Directory exists but is empty, we can use it
-	} else if !goerrors.Is(err, os.ErrNotExist) {
-		return errors.E(op, errors.IO, types.UniquePath(c.Destination), err)
-	} else {
+	case goerrors.Is(err, os.ErrNotExist):
 		// Directory doesn't exist, create it
 		err = os.MkdirAll(c.Destination, 0700)
 		if err != nil {
 			return errors.E(op, errors.IO, types.UniquePath(c.Destination), err)
 		}
+	default:
+		return errors.E(op, errors.IO, types.UniquePath(c.Destination), err)
 	}
 
 	// normalize path to a filepath