mirror of https://github.com/webpack/webpack.git
59 lines
1.6 KiB
JavaScript
59 lines
1.6 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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function checkForUpdate(fromUpdate) {
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module.hot.check(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.");
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console.warn("[HMR] " + err.stack || err.message);
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console.warn("[HMR] You need to restart the application!");
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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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if(fromUpdate)
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console.log("[HMR] Update applied.");
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else
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console.warn("[HMR] Cannot find update.");
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return;
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}
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module.hot.apply({
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ignoreUnaccepted: true
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}, function(err, renewedModules) {
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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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console.warn("[HMR] You need to restart the application!");
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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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require("./log-apply-result")(updatedModules, renewedModules);
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checkForUpdate(true);
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});
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});
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}
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process.on(__resourceQuery.substr(1) || "SIGUSR2", function() {
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if(module.hot.status() !== "idle") {
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console.warn("[HMR] Got signal but currently in " + module.hot.status() + " state.");
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console.warn("[HMR] Need to be in idle state to start hot update.");
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return;
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}
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checkForUpdate();
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});
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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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