the-shepherd/lib/actions/scale.js

Control a herd of wild processes.

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

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

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

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

  Object.assign(module.exports, {
    options: [["--group <group>", "Which group to scale."], ["--count <n>", "How many processes should be running.", int]],
    toMessage: function(cmd) {
      return {
        c: 'scale',
        g: cmd.group,
        n: cmd.count
      };
    },
    onMessage: function(msg, client) {
      var acted;
      acted = required(msg, 'g', "--group is required with 'scale'" && (Groups.has(msg.g) || warn(`Unknown group name passed to --group ('${msg.g}')`)) && Groups.get(msg.g).scale(msg.n));
      if (acted) {
        if (client != null) {
          client.write($.TNET.stringify(`Scaled group to ${msg.n} processes.`));
        }
      } else {
        if (client != null) {
          client.write($.TNET.stringify("Nothing to scale."));
        }
      }
      return acted;
    },
    onResponse: echoResponse
  });

}).call(this);