mecano/lib/child.js

Common functions for system deployment.

// Generated by CoffeeScript 1.7.1
var EventEmitter, count;

EventEmitter = require('events').EventEmitter;

count = 0;

module.exports = function(mecano) {
  var child, k, v, _fn;
  child = new EventEmitter;
  child.todos = [];
  _fn = function(k) {
    return child[k] = function(options, callback) {
      child.todos.push([k, arguments]);
      return child;
    };
  };
  for (k in mecano) {
    v = mecano[k];
    _fn(k);
  }
  child.end = function(err, modified) {
    var c, todo;
    todo = child.todos.shift();
    if (err || !todo) {
      if (child.listeners('error').length) {
        if (err) {
          child.emit('error', err);
        } else {
          child.emit('end', modified);
        }
      } else {
        child.emit('both', err, modified);
      }
      return;
    }
    c = mecano[todo[0]].apply(null, todo[1]);
    c.id = "child " + (count++);
    c.on('error', function(err) {
      return child.end(err, 0);
    });
    return c.on('end', function(modified) {
      return child.end(null, modified);
    });
  };
  return child;
};