@@ -32,6 +32,7 @@ if err != nil {
 			lastErr = err
 		}
 	}
+
 	return lastErr
 }
 
@@ -45,6 +46,7 @@ f, err := openFileWrite(filenameGz)
 	if err != nil {
 		return nil, err
 	}
+
 	return gzip.NewWriterLevel(f, gzipLevel)
 }
 
@@ -54,6 +56,7 @@ f, err := openFileWrite(filenameBrotli)
 	if err != nil {
 		return nil, err
 	}
+
 	return brotli.NewWriterLevel(f, brotliLevel), nil
 }
 
@@ -70,6 +73,7 @@ br, err := openFileBrotli(filename)
 	if err != nil {
 		return nil, err
 	}
+
 	return &MultiWriteCloser{
 		writers:     []io.WriteCloser{r, gz, br},
 		multiWriter: io.MultiWriter(r, gz, br),
@@ -79,34 +83,38 @@
 func openFileAndVariants(filename string) (io.WriteCloser, error) {
 	if compressFiles {
 		return multiOpenFile(filename)
-	} else {
-		return openFileWrite(filename)
 	}
+
+	return openFileWrite(filename)
 }
 
 func copyRecursive(src, dst string) error {
 	return filepath.WalkDir(src, func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
 		rel, err := filepath.Rel(src, path)
 		if err != nil {
 			return err
 		}
 		if d.IsDir() {
 			return mkdirp(dst, rel)
-		} else {
-			sf, err := os.Open(path)
-			if err != nil {
-				return err
-			}
-			defer sf.Close()
-			df, err := openFileAndVariants(filepath.Join(dst, rel))
-			if err != nil {
-				return err
-			}
-			defer df.Close()
-			if _, err := io.Copy(df, sf); err != nil {
-				return err
-			}
+		}
+
+		sf, err := os.Open(path)
+		if err != nil {
+			return err
 		}
+		defer sf.Close()
+		df, err := openFileAndVariants(filepath.Join(dst, rel))
+		if err != nil {
+			return err
+		}
+		defer df.Close()
+		if _, err := io.Copy(df, sf); err != nil {
+			return err
+		}
+
 		return nil
 	})
 }