pty

type Cmd struct {
	Context context.Context
	Path    string
	Args    []string
	Env     []string
	Dir     string
}

type Option func(*ptyOptions)

type PTY interface {
	io.Closer

	// Resize sets the size of the PTY.
	Resize(height uint16, width uint16) error

	// Name of the TTY. Example on Linux would be "/dev/pts/1".
	Name() string

	// Output handles TTY output.
	//
	// cmd.SetOutput(pty.Output()) would be used to specify a command
	// uses the output stream for writing.
	//
	// The same stream could be read to validate output.
	Output() ReadWriter

	// Input handles TTY input.
	//
	// cmd.SetInput(pty.Input()) would be used to specify a command
	// uses the PTY input for reading.
	//
	// The same stream would be used to provide user input: pty.Input().Write(...)
	Input() ReadWriter
}

type PTYCmd interface {
	io.Closer

	// Resize sets the size of the PTY.
	Resize(height uint16, width uint16) error

	// OutputReader returns an io.Reader for reading the output from the process
	// controlled by the pseudo-TTY
	OutputReader() io.Reader

	// InputWriter returns an io.Writer for writing into to the process
	// controlled by the pseudo-TTY
	InputWriter() io.Writer
}

type Process interface {
	// Wait for the command to complete.  Returned error is as for exec.Cmd.Wait()
	Wait() error

	// Kill the command process.  Returned error is as for os.Process.Kill()
	Kill() error

	// Signal sends a signal to the command process. On non-windows systems, the
	// returned error is as for os.Process.Signal(), on Windows it's
	// as for os.Process.Kill().
	Signal(sig os.Signal) error
}

type ReadWriter struct {
	Reader io.Reader
	Writer io.Writer
}

type StartOption func(*startOptions)

type TerminalState struct {
	// contains filtered or unexported fields
}

type WithFlags interface {
	PTY

	// EchoEnabled determines whether local echo is currently enabled for this terminal.
	EchoEnabled() (bool, error)
}