marko/dist/browser-refresh.js

var enabled = false;
var browserRefreshClient = require("browser-refresh-client");

exports.enable = function (options) {
  if (!browserRefreshClient.isBrowserRefreshEnabled()) {
    return;
  }

  if (enabled) {
    return;
  }

  enabled = true;

  options = options || {};

  // We set an environment variable so that _all_ marko modules
  // installed in the project will have browser refresh enabled.
  process.env.MARKO_BROWSER_REFRESH = "true";

  var hotReload = require("./hot-reload");
  hotReload.enable(options);

  browserRefreshClient.enableSpecialReload("*.marko marko.json marko-tag.json").onFileModified(function (path) {
    hotReload.handleFileModified(path, options);
  });
};