mirror of https://github.com/webpack/webpack.git
54 lines
1.5 KiB
JavaScript
54 lines
1.5 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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/*globals window __webpack_hash__ */
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if(module.hot) {
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var lastHash;
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var upToDate = function upToDate() {
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return lastHash.indexOf(__webpack_hash__) >= 0;
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};
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var log = require("./log");
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var check = function check() {
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module.hot.check(true).then(function(updatedModules) {
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if(!updatedModules) {
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log("warning", "[HMR] Cannot find update. Need to do a full reload!");
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log("warning", "[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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log("info", "[HMR] App is up to date.");
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}
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}).catch(function(err) {
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var status = module.hot.status();
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if(["abort", "fail"].indexOf(status) >= 0) {
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log("warning", "[HMR] Cannot apply update. Need to do a full reload!");
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log("warning", "[HMR] " + err.stack || err.message);
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window.location.reload();
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} else {
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log("warning", "[HMR] Update failed: " + err.stack || err.message);
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}
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});
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};
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var hotEmitter = require("./emitter");
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hotEmitter.on("webpackHotUpdate", function(currentHash) {
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lastHash = currentHash;
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if(!upToDate() && module.hot.status() === "idle") {
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log("info", "[HMR] Checking for updates on the server...");
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check();
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}
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});
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log("info", "[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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