func (c *communicator) Start(cmd *packer.RemoteCmd) (err error) {
var args CommunicatorStartArgs
args.Command = cmd.Command
if cmd.Stdin != nil {
stdinL := netListenerInRange(portRangeMin, portRangeMax)
args.StdinAddress = stdinL.Addr().String()
go serveSingleCopy("stdin", stdinL, nil, cmd.Stdin)
}
if cmd.Stdout != nil {
stdoutL := netListenerInRange(portRangeMin, portRangeMax)
args.StdoutAddress = stdoutL.Addr().String()
go serveSingleCopy("stdout", stdoutL, cmd.Stdout, nil)
}
if cmd.Stderr != nil {
stderrL := netListenerInRange(portRangeMin, portRangeMax)
args.StderrAddress = stderrL.Addr().String()
go serveSingleCopy("stderr", stderrL, cmd.Stderr, nil)
}
responseL := netListenerInRange(portRangeMin, portRangeMax)
args.ResponseAddress = responseL.Addr().String()
go func() {
defer responseL.Close()
conn, err := responseL.Accept()
if err != nil {
log.Panic(err)
}
defer conn.Close()
decoder := gob.NewDecoder(conn)
var finished CommandFinished
if err := decoder.Decode(&finished); err != nil {
log.Panic(err)
}
cmd.ExitStatus = finished.ExitStatus
cmd.Exited = true
}()
err = c.client.Call("Communicator.Start", &args, new(interface{}))
return
}
func (c *comm) Start(cmd *packer.RemoteCmd) (err error) {
session, err := c.client.NewSession()
if err != nil {
return
}
// Setup our session
session.Stdin = cmd.Stdin
session.Stdout = cmd.Stdout
session.Stderr = cmd.Stderr
// Request a PTY
termModes := ssh.TerminalModes{
ssh.ECHO: 0, // do not echo
ssh.TTY_OP_ISPEED: 14400, // input speed = 14.4kbaud
ssh.TTY_OP_OSPEED: 14400, // output speed = 14.4kbaud
}
if err = session.RequestPty("xterm", 80, 40, termModes); err != nil {
return
}
log.Printf("starting remote command: %s", cmd.Command)
err = session.Start(cmd.Command + "\n")
if err != nil {
return
}
// Start a goroutine to wait for the session to end and set the
// exit boolean and status.
go func() {
defer session.Close()
err := session.Wait()
cmd.ExitStatus = 0
if err != nil {
exitErr, ok := err.(*ssh.ExitError)
if ok {
cmd.ExitStatus = exitErr.ExitStatus()
}
}
cmd.Exited = true
}()
return
}