deployd/lib/type-loader.js

var fs = require('fs')
  , Resource = require('./resource')
  , debug = require('debug')('type-loader')
  , domain = require('domain');

module.exports = function loadTypes(basepath, fn) {
  var types = {}
    , defaults = {};
  
  if(typeof basepath == 'function') {
    fn = basepath; 
    basepath = undefined;
  }

  var path = basepath || '.';

  // read default lib resources
  fs.readdir(__dirname + '/resources', function(err, dir) {
    dir.forEach(function(file) {
      if(file.indexOf('.js') == file.length - 3 || file.indexOf('.') === -1) {
        var c = require(__dirname + '/resources/' + file);
        defaults[c.name] = c;
      }
    });

    // read local project resources
    fs.readdir(path + '/node_modules', function(err, dir) {
      var remaining = 0;
      dir && dir.forEach(function(file) {  
        if(file.indexOf('.js') == file.length - 3 || file.indexOf('.') === -1) {
          var d = domain.create();
          remaining++;
          d.run(function () {
            process.nextTick(function () {
              remaining--;
              try {
                debug('Loading', require('path').resolve(path) + '/node_modules/' + file);
                var c = require(require('path').resolve(path) + '/node_modules/' + file);
                if(c && c.prototype && c.prototype.__resource__) {
                  debug('is a resource ', c && c.name);
                  types[c.name] = c; 
                }
              } catch(e) { 
                console.error();
                console.error("Error loading module node_modules/" + file);
                console.error(e.stack || e);
                process.exit();
              }
              
              if(remaining === 0) {
                fn(defaults, types);
              }
            });
          });
          
          d.on('error', function (err) {
            console.error('Error in module node_modules/' + file);
            console.error(err.stack || err);
            process.exit();
          });
        }
      });
    });
  });
};