dev-server.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
/*globals window __webpack_hash__ */
if(module.hot) {
var lastHash;
var upToDate = function upToDate() {
return lastHash.indexOf(__webpack_hash__) >= 0;
};
var log = require("./log");
var check = function check() {
module.hot.check(true).then(function(updatedModules) {
if(!updatedModules) {
log("warning", "[HMR] Cannot find update. Need to do a full reload!");
log("warning", "[HMR] (Probably because of restarting the webpack-dev-server)");
window.location.reload();
return;
}
if(!upToDate()) {
check();
}
require("./log-apply-result")(updatedModules, updatedModules);
if(upToDate()) {
log("info", "[HMR] App is up to date.");
}
}).catch(function(err) {
var status = module.hot.status();
if(["abort", "fail"].indexOf(status) >= 0) {
log("warning", "[HMR] Cannot apply update. Need to do a full reload!");
log("warning", "[HMR] " + err.stack || err.message);
window.location.reload();
} else {
log("warning", "[HMR] Update failed: " + err.stack || err.message);
}
});
};
var hotEmitter = require("./emitter");
hotEmitter.on("webpackHotUpdate", function(currentHash) {
lastHash = currentHash;
if(!upToDate() && module.hot.status() === "idle") {
log("info", "[HMR] Checking for updates on the server...");
check();
}
});
log("info", "[HMR] Waiting for update signal from WDS...");
} else {
throw new Error("[HMR] Hot Module Replacement is disabled.");
}