WRidder/react-spa

/**
 * Require cache invalidation
 * See: http://stackoverflow.com/questions/9210542/node-js-require-cache-possible-to-invalidate
 * @param require
 * @returns {*}
 */
"use strict";
module.exports = function(require) {
  /**
   * Removes a module from the cache
   */
  require.uncache = function (moduleName) {
    // Run over the cache looking for the files
    // loaded by the specified module name
    require.searchCache(moduleName, function (mod) {
      delete require.cache[mod.id];
    });

    // Remove cached paths to the module.
    // Thanks to @bentael for pointing this out.
    Object.keys(module.constructor._pathCache).forEach(function(cacheKey) {
      if (cacheKey.indexOf(moduleName)>0) {
        delete module.constructor._pathCache[cacheKey];
      }
    });
  };

  /**
   * Runs over the cache to search for all the cached
   * files
   */
  require.searchCache = function (moduleName, callback) {
    // Resolve the module identified by the specified name
    var mod = require.resolve(moduleName);

    // Check if the module has been resolved and found within
    // the cache
    if (mod && ((mod = require.cache[mod]) !== undefined)) {
      // Recursively go over the results
      (function run(mod) {
        // Go over each of the module's children and
        // run over it
        mod.children.forEach(function (child) {
          run(child);
        });

        // Call the specified callback providing the
        // found module
        callback(mod);
      })(mod);
    }
  };

  return require;
};