Implement displaying breaking changes

addon.go

@@ -74,14 +74,13 @@ func UpdateFile(localPath string, data []byte) (err error) {
 
 	return nil
 }
-func (a *Addon) Update(body []byte) (err error) {
+func (a *Addon) Update(body []byte) (hasBreakingChanges bool, err error) {
 	log.Printf("Updating %s", a.Name)
 	zipReader, err := zip.NewReader(bytes.NewReader(body), int64(len(body)))
 	if err != nil {
-		return fmt.Errorf("error creating zip reader: %w", err)
+		return false, fmt.Errorf("error creating zip reader: %w", err)
 	}
 	log.Printf("Found %d files", len(zipReader.File))
-	hasBreakingChanges := false
 	for _, file := range zipReader.File {
 		if file.FileInfo().IsDir() {
 			continue
@@ -89,11 +88,11 @@ func (a *Addon) Update(body []byte) (err error) {
 		log.Printf("Found file %s", file.Name)
 		fileHandle, err := file.Open()
 		if err != nil {
-			return fmt.Errorf("error opening file: %w", err)
+			return false, fmt.Errorf("error opening file: %w", err)
 		}
 		fileData, err := io.ReadAll(fileHandle)
 		if err != nil {
-			return fmt.Errorf("error reading file: %w", err)
+			return false, fmt.Errorf("error reading file: %w", err)
 		}
 
 		if strings.HasSuffix(file.Name, ".toc") {
@@ -102,7 +101,7 @@ func (a *Addon) Update(body []byte) (err error) {
 				if os.IsNotExist(err) {
 					localToc = []byte{}
 				} else {
-					return fmt.Errorf("error reading local toc: %w", err)
+					return false, fmt.Errorf("error reading local toc: %w", err)
 				}
 			}
 			if a.HasBreakingChanges(string(localToc), string(fileData)) {
@@ -115,13 +114,13 @@ func (a *Addon) Update(body []byte) (err error) {
 		log.Printf("Updating file %s", localPath)
 		err = UpdateFile(localPath, fileData)
 		if err != nil {
-			return fmt.Errorf("error updating file: %w", err)
+			return false, fmt.Errorf("error updating file: %w", err)
 		}
 	}
 	if hasBreakingChanges {
 		Warning.Printf("Has breaking changes")
 	}
-	return nil
+	return hasBreakingChanges, nil
 }
 func (a *Addon) GetLocalTocPath() string {
 	return filepath.Join(settings.GamePath, "Interface", "AddOns", a.Name, a.Name+".toc")