package pkg import ( "bufio" "go.uber.org/zap" "os" ) func ScanFile(path string, handle func(data string) (err error)) (err error) { file, err := os.Open(path) if err != nil { return err } defer func(file *os.File) { err = file.Close() if err != nil { zap.S().Error(err) } }(file) input := bufio.NewScanner(file) var lineText string for input.Scan() { lineText = input.Text() err := handle(lineText) if err != nil && len(lineText) > 0 { zap.L().Error("file data handle error", zap.Error(err), zap.String("path", path), zap.String("data", lineText)) continue } } return nil }