attach

type Options struct {
	// Version must match the server's exactly.
	Version string

	// BuildFingerprint is version.BuildFingerprint(): empty outside a
	// development build, where Version alone cannot tell a rebuilt binary
	// from the one already running in the server it is attaching to.
	BuildFingerprint string

	// WorkDir and DataSource are what this invocation asked for, passed on so
	// the server can build or move the session.
	WorkDir    string
	DataSource string

	// Screen is the terminal. Nil makes a real one, which is the ordinary
	// case; a test supplies a simulation screen and keeps it afterwards.
	Screen tcell.Screen

	// Err is where the server's warnings are printed. Nil discards them.
	Err io.Writer
}