webpack/hot/poll.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
/*globals __resourceQuery */
if (module.hot) {
	var hotPollInterval = +__resourceQuery.substr(1) || 10 * 60 * 1000;
	var log = require("./log");

	var checkForUpdate = function checkForUpdate(fromUpdate) {
		if (module.hot.status() === "idle") {
			module.hot
				.check(true)
				.then(function (updatedModules) {
					if (!updatedModules) {
						if (fromUpdate) log("info", "[HMR] Update applied.");
						return;
					}
					require("./log-apply-result")(updatedModules, updatedModules);
					checkForUpdate(true);
				})
				.catch(function (err) {
					var status = module.hot.status();
					if (["abort", "fail"].indexOf(status) >= 0) {
						log("warning", "[HMR] Cannot apply update.");
						log("warning", "[HMR] " + log.formatError(err));
						log("warning", "[HMR] You need to restart the application!");
					} else {
						log("warning", "[HMR] Update failed: " + log.formatError(err));
					}
				});
		}
	};
	setInterval(checkForUpdate, hotPollInterval);
} else {
	throw new Error("[HMR] Hot Module Replacement is disabled.");
}