feat: 修改同步应用备份逻辑

backend/app/service/app_utils.go

@@ -570,7 +570,8 @@ func getAppFromOss() error {
 	}
 
 	fileOp := files.NewFileOp()
-	if _, err := fileOp.Backup(appDir); err != nil {
+
+	if _, err := fileOp.CopyAndBackup(appDir); err != nil {
 		return err
 	}
 

backend/utils/files/file_op.go

@@ -433,5 +433,23 @@ func (f FileOp) Backup(srcFile string) (string, error) {
 	if err := f.Rename(srcFile, backupPath); err != nil {
 		return backupPath, err
 	}
+
+	return backupPath, nil
+}
+
+func (f FileOp) CopyAndBackup(src string) (string, error) {
+	backupPath := src + "_bak"
+	info, _ := f.Fs.Stat(backupPath)
+	if info != nil {
+		if info.IsDir() {
+			_ = f.DeleteDir(backupPath)
+		} else {
+			_ = f.DeleteFile(backupPath)
+		}
+	}
+	_ = f.CreateDir(backupPath, 0755)
+	if err := f.Copy(src, backupPath); err != nil {
+		return backupPath, err
+	}
 	return backupPath, nil
 }