mirror of https://github.com/webpack/webpack.git
60 lines
1.7 KiB
JavaScript
60 lines
1.7 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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if(module.hot) {
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var lastData;
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var upToDate = function upToDate() {
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return lastData.indexOf(__webpack_hash__) >= 0;
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};
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var check = function check() {
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module.hot.check(true, function(err, updatedModules) {
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if(err) {
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if(module.hot.status() in {abort:1,fail:1}) {
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console.warn("[HMR] Cannot apply update. Need to do a full reload!");
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console.warn("[HMR] " + err.stack || err.message);
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window.location.reload();
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} else {
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console.warn("[HMR] Update failed: " + err.stack || err.message);
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}
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return;
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}
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if(!updatedModules) {
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console.warn("[HMR] Cannot find update. Need to do a full reload!");
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console.warn("[HMR] (Probably because of restarting the webpack-dev-server)")
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window.location.reload();
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return;
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}
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if(!upToDate()) {
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check();
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}
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require("./log-apply-result")(updatedModules, updatedModules);
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if(upToDate()) {
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console.log("[HMR] App is up to date.");
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}
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});
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};
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var addEventListener = window.addEventListener ? function(eventName, listener) {
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window.addEventListener(eventName, listener, false);
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} : function (eventName, listener) {
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window.attachEvent('on' + eventName, listener);
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};
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addEventListener("message", function(event) {
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if(typeof event.data === "string" && event.data.indexOf("webpackHotUpdate") === 0) {
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lastData = event.data;
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if(!upToDate() && module.hot.status() === "idle") {
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console.log("[HMR] Checking for updates on the server...");
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check();
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}
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}
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});
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console.log("[HMR] Waiting for update signal from WDS...");
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} else {
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throw new Error("[HMR] Hot Module Replacement is disabled.");
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}
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