wip

cmd/replace-with-commands/main.go

@@ -67,6 +67,7 @@ $ replace-with-commands --prefix='# @updator:' --list .github/workflows/*.yml
 
 	for _, path := range flag.Args() {
 		newLines := []string{}
+		isDirty := false
 
 		file, err := os.Create(path)
 		if err != nil {
@@ -100,11 +101,14 @@ $ replace-with-commands --prefix='# @updator:' --list .github/workflows/*.yml
 					log.Fatalf("%+v", xerrors.Errorf("%s:%d: Executing %s with bash has been failed: %w", path, lineNumber, definition.Command, err))
 				}
 				replaced := re.ReplaceAllString(head, strings.TrimSuffix(string(out), "\n"))
+				if replaced != head {
+					isDirty = true
+				}
 				newLines = append(newLines, replaced+match+tail)
 			}
 		}
 
-		if !isListMode {
+		if isDirty {
 			err = os.WriteFile(path, []byte(strings.Join(newLines, "\n")), os.ModePerm)
 			if err != nil {
 				log.Fatalf("%+v", xerrors.Errorf("%s: %w", path, err))