Method recoverFromGoPanic

tea.go:1294–1315

recoverFromGoPanic recovers from a goroutine panic, prints a stack trace and signals for the program to be killed and terminal restored to a usable state.

(r interface{})

// recoverFromGoPanic recovers from a goroutine panic, prints a stack trace and
// signals for the program to be killed and terminal restored to a usable state.
func (p *Program) recoverFromGoPanic(r interface{}) {
	select {
	case p.errs <- ErrProgramPanic:
	default:
	}
	p.cancel()
	// We use "\r\n" to ensure the output is formatted even when restoring the
	// terminal does not work or when raw mode is still active.
	rec := strings.ReplaceAll(fmt.Sprintf("%s", r), "\n", "\r\n")
	fmt.Fprintf(os.Stderr, "Caught panic:\r\n\r\n%s\r\n\r\nRestoring terminal...\r\n\r\n", rec)
	stack := strings.ReplaceAll(fmt.Sprintf("%s\n", debug.Stack()), "\n", "\r\n")
	fmt.Fprint(os.Stderr, stack)
	if v, err := strconv.ParseBool(os.Getenv("TEA_DEBUG")); err == nil && v {
		f, err := os.Create(fmt.Sprintf("bubbletea-panic-%d.log", time.Now().Unix()))
		if err == nil {
			defer f.Close()        //nolint:errcheck
			fmt.Fprintln(f, rec)   //nolint:errcheck
			fmt.Fprintln(f)        //nolint:errcheck
			fmt.Fprintln(f, stack) //nolint:errcheck
		}
	}
}

// ReleaseTerminal restores the original terminal state and cancels the input
// reader. You can return control to the Program with RestoreTerminal.