A nifty code snippet I use for this: // ErrLine returns an error formatted to include the line // number of where it occurred (presumably with a performan

A nifty code snippet I use for this: // ErrLine returns an error formatted to include the line // number of where it occurred (presumably with a performance penalty) func ErrLine(err error) error { if err != nil { // notice that we're using 1, so it will actually log the where // the error happened, 0 = this function, we don't want that. pc, fn, line, _ := runtime.Caller(1) err = fmt.Errorf("[error] in %s[%s:%d]: %s", runtime.FuncForPC(pc).Name(), fn, line, err.Error()) } return err }