// IsTerminal determines if this process is attached to a TTY.
func IsTerminal() bool {
// Windows is always a terminal
if runtime.GOOS == "windows" {
return true
}
// Same implementation as readline but with our custom fds
return readline.IsTerminal(int(wrappedstreams.Stdin().Fd())) &&
(readline.IsTerminal(int(wrappedstreams.Stdout().Fd())) ||
readline.IsTerminal(int(wrappedstreams.Stderr().Fd())))
}
func startConsole(servers []*Server) {
rl, err := readline.New("> ")
if err != nil {
panic(err)
}
defer rl.Close()
type output struct {
serv *Server
output string
}
isTerminal := readline.IsTerminal(int(os.Stdin.Fd()))
for {
var line string
var err error
if isTerminal {
line, err = rl.Readline()
} else {
lineb, er := ioutil.ReadAll(os.Stdin)
line, err = string(lineb), er
}
if err != nil { // io.EOF
break
}
outputc := make(chan output)
var mutex sync.Mutex
var count int
var wg sync.WaitGroup
wg.Add(1)
go func() {
for {
mutex.Lock()
output := <-outputc
prompt := output.serv.prompt()
if isTerminal {
prompt += " " + line
}
if count > 0 && strings.TrimSpace(output.output) != "" {
prompt = "\n" + prompt
}
fmt.Println(prompt)
if strings.TrimSpace(output.output) != "" {
fmt.Printf(output.output)
}
if count++; count >= len(servers) {
break
}
mutex.Unlock()
}
wg.Done()
}()
for _, serv := range servers {
wg.Add(1)
go func(serv *Server) {
outputc <- output{serv: serv, output: serv.exec(line)}
wg.Done()
}(serv)
}
wg.Wait()
if !isTerminal {
return
}
}
}