galleon/bin/tasks/start.js

A badass SMTP mail server built on Node to make your life simpler.

var pm2 = require('pm2');
var _ = require('lodash');
var path = require('path');

// Thanks to https://gist.github.com/timoxley/1689041
var isPortTaken = function (port, fn) {
  var net = require('net')
  var tester = net.createServer()
    .once('error', function (err) {
      if (err.code != 'EADDRINUSE') return fn(err)
      fn(null, false)
    })
    .once('listening', function () {
      tester.once('close', function () { fn(null, true) })
        .close()
    })
    .listen(port)
}

module.exports = function () {
  // Connect or launch PM2
  pm2.connect(function (error) {
    if (error) throw error;

    pm2.list(function (error, list) {
      if (error) throw error;
      if (_.findWhere(list, { name: 'galleon-instance' })) {
        console.error("Instance already exists!".red, "\nTRY", "galleon restart".magenta);
        process.exit(0);
      }

      isPortTaken(25, function (error, available) {
        if (error || !available) {
          console.log("PORT 25 is not available", "\nTRY", "authbind --deep galleon start".magenta, "\nFind More info about authbind -> https://github.com/schahriar/Galleon/blob/master/tutorials/AUTHBIND.md")
          process.exit(0);
        }

        // Start a script on the current folder
        /* BADPATCH -- There are significant issues with providing PM2 with a local script (https://github.com/schahriar/Galleon/issues/2). Start.JS should implement fallback methods and use a launch script inside the .galleon folder by default.  */
        pm2.start(path.resolve(__dirname, '../galleon.js'), { name: 'galleon-instance', force: true, scriptArgs: process.argv, nodeArgs: "--max_old_space_size=300" }, function (err, proc) {
          if (err) return new Error(err);

          // Get all processes running
          pm2.list(function (err, process_list) {
            console.log("Process Started".green);
            console.log("Type".cyan + " galleon status ".bold + "to show process status".cyan);

            // Disconnect to PM2
            pm2.disconnect(function () { process.exit(0) });
          });
        });
      })
    })
  })
}