refactor: extract rename func

main.go

@@ -87,11 +87,9 @@ func removeSuffix(suffix string) filepath.WalkFunc {
 		if filenameNoSuff != filenameNoExt {
 			newFilename := filenameNoSuff + ext
 
-			err := os.Rename(filepath.Join(dir, filename), filepath.Join(dir, newFilename))
+			err := rename(filepath.Join(dir, filename), filepath.Join(dir, newFilename), dryrun)
 			if err != nil {
 				fmt.Printf("Could not rename %s: %v\n", filename, err)
-			} else {
-				fmt.Println("Renamed " + filename + " to " + newFilename)
 			}
 		}
 
@@ -110,21 +108,22 @@ func normalize(p string, f os.FileInfo, err error) error {
 
 	element := newMediaElement(p)
 	newPath := element.Path()
-	if newPath != p {
-		if dryrun {
-			fmt.Printf("Would move %s to %s\n", p, newPath)
-		} else {
-			err = os.Rename(p, newPath)
-			if err != nil {
-				return err
-			}
-			fmt.Printf("%s => %s\n", p, newPath)
-		}
+	if newPath == p {
+		return nil
 	}
 
+	return rename(p, newPath, dryrun)
+}
+
+func rename(oldPath, newPath string, dryrun bool) error {
+	fmt.Printf("%s => %s\n", oldPath, newPath)
+	if dryrun {
 		return nil
 	}
 
+	return os.Rename(oldPath, newPath)
+}
+
 func unpack(p string, f os.FileInfo, err error) error {
 	filename := f.Name()
 	if skip, err := skipDir(filename); skip {