the-shepherd/lib/actions/add.js

Control a herd of wild processes.

// Generated by CoffeeScript 2.5.1
(function() {
  var $, addGroup, echo, echoResponse, int, required, verbose, warn;

  ({$, echo, warn, verbose, required, echoResponse} = require('../common'));

  ({addGroup} = require('../daemon/groups'));

  ({int} = require('../util/format'));

  Object.assign(module.exports, {
    options: [["--group <group>", "Name of the group to create."], ["--cd <path>", "The working directory to spawn processes in."], ["--exec <script>", "Any shell command, e.g. 'node app.js'."], ["--count <n>", "The starting size of the group.", int], ["--port <port>", "If specified, set PORT in env for each child, incrementing port each time.", int], ["--grace <ms>", "How long to wait for a process to start."]],
    toMessage: function(cmd) {
      return {
        c: 'add',
        g: cmd.group,
        d: cmd.cd,
        x: cmd.exec,
        n: cmd.count,
        p: cmd.port,
        ms: cmd.grace
      };
    },
    onMessage: function(msg, client, cb) {
      var acted;
      acted = required(msg, 'g', "--group is required with 'add'") && required(msg, 'x', "--exec is required with 'add'") && addGroup(msg.g, msg.d, msg.x, msg.n, msg.p, msg.ms, cb);
      if (client != null) {
        client.write($.TNET.stringify((acted ? `Group ${msg.g} added.` : "No group added.")));
      }
      return typeof cb === "function" ? cb(null, acted) : void 0;
    },
    onResponse: echoResponse
  });

}).call(this);