Node Pipe to TTY

minttylauncher.js

function shell(cmd, opts, callback) {
  var p = spawn(cmd, opts, { customFds: [0, 1, 2] });
  //process.stdin.pause();
  return p.on('exit', function() {
    //process.stdin.resume();
    return callback();
  });
}
//var mintty = shell('cmd', ['/k', 'node', 'minttyshim.js'], function(){ return process.exit() });
var mintty = shell('node', ['minttyshim.js'], function(){ return process.exit() });

minttyshim.js

var tty = require('../core/TTY');
var util = require('util');
var TTY = process.binding('tty_wrap');
var EventEmitter = require('events').EventEmitter;

// method 1: create new streams
var stdin = new tty.ReadStream(0);
var stdout = new tty.WriteStream(1);
var stderr = new tty.WriteStream(2);
EventEmitter.call(stdin);
EventEmitter.call(stdout);
EventEmitter.call(stderr);

// method 2: monkeypatch existing ones
tty.ReadStream.call(process.stdin);
tty.WriteStream.call(process.stdout);
process.stdin.__proto__ = tty.ReadStream.prototype;
process.stdout.__proto__ = tty.WriteStream.prototype;
process.stdin._handle.__proto__ = TTY.prototype;
process.stdout._handle.__proto__ = TTY.prototype;


var UltraREPL = require('../');
new UltraREPL

TTY.js

var tty = require('tty');
var TTY = process.binding('tty_wrap').TTY;
var net = require('net');


module.exports = {
  ReadStream: ReadStream,
  WriteStream: WriteStream,
  isatty: function isatty(fd){
    return tty.isatty(fd);
  },
  setRawMode: function setRawMode(flag){
    process.stdin._handle.setRawMode(flag);
  }
}


function ReadStream(fd){
  tty.ReadStream.apply(this, arguments);
}

ReadStream.prototype = {
  constructor: ReadStream,
  __proto__: tty.ReadStream.prototype,

  isTTY: true,

  pause: function pause(){
    this._handle.unref();
    return net.Socket.prototype.pause.call(this);
  },
  resume: function resume(){
    this._handle.ref();
    return net.Socket.prototype.resume.call(this);
  }
};



function WriteStream(fd) {
  tty.WriteStream.apply(this, arguments);
}

WriteStream.prototype = {
  constructor: WriteStream,
  __proto__: tty.WriteStream.prototype,

  isTTY: true,

  cursorTo: function cursorTo(x, y) {
    if (typeof x !== 'number' && typeof y !== 'number')
      return;

    if (typeof x !== 'number')
      throw new Error("Can't set cursor row without also setting it's column");

    if (typeof y !== 'number') {
      this.write('\x1b[' + (x + 1) + 'G');
    } else {
      this.write('\x1b[' + (y + 1) + ';' + (x + 1) + 'H');
    }
  },


  moveCursor: function moveCursor(dx, dy) {
    if (dx < 0) {
      this.write('\x1b[' + (-dx) + 'D');
    } else if (dx > 0) {
      this.write('\x1b[' + dx + 'C');
    }

    if (dy < 0) {
      this.write('\x1b[' + (-dy) + 'A');
    } else if (dy > 0) {
      this.write('\x1b[' + dy + 'B');
    }
  }
}