| 1 | /*
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| 2 | MIT License http://www.opensource.org/licenses/mit-license.php
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| 3 | Author Tobias Koppers @sokra
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| 4 | */
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| 5 | /* globals __webpack_hash__ */
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| 6 | if (module.hot) {
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| 7 | /** @type {undefined|string} */
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| 8 | var lastHash;
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| 9 | var upToDate = function upToDate() {
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| 10 | return /** @type {string} */ (lastHash).indexOf(__webpack_hash__) >= 0;
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| 11 | };
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| 12 | var log = require("./log");
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| 13 | var check = function check() {
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| 14 | module.hot
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| 15 | .check(true)
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| 16 | .then(function (updatedModules) {
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| 17 | if (!updatedModules) {
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| 18 | log(
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| 19 | "warning",
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| 20 | "[HMR] Cannot find update. " +
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| 21 | (typeof window !== "undefined"
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| 22 | ? "Need to do a full reload!"
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| 23 | : "Please reload manually!")
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| 24 | );
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| 25 | log(
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| 26 | "warning",
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| 27 | "[HMR] (Probably because of restarting the webpack-dev-server)"
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| 28 | );
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| 29 | if (typeof window !== "undefined") {
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| 30 | window.location.reload();
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| 31 | }
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| 32 | return;
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| 33 | }
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| 34 |
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| 35 | if (!upToDate()) {
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| 36 | check();
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| 37 | }
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| 38 |
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| 39 | require("./log-apply-result")(updatedModules, updatedModules);
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| 40 |
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| 41 | if (upToDate()) {
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| 42 | log("info", "[HMR] App is up to date.");
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| 43 | }
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| 44 | })
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| 45 | .catch(function (err) {
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| 46 | var status = module.hot.status();
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| 47 | if (["abort", "fail"].indexOf(status) >= 0) {
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| 48 | log(
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| 49 | "warning",
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| 50 | "[HMR] Cannot apply update. " +
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| 51 | (typeof window !== "undefined"
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| 52 | ? "Need to do a full reload!"
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| 53 | : "Please reload manually!")
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| 54 | );
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| 55 | log("warning", "[HMR] " + log.formatError(err));
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| 56 | if (typeof window !== "undefined") {
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| 57 | window.location.reload();
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| 58 | }
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| 59 | } else {
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| 60 | log("warning", "[HMR] Update failed: " + log.formatError(err));
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| 61 | }
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| 62 | });
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| 63 | };
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| 64 | /** @type {EventTarget | NodeJS.EventEmitter} */
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| 65 | var hotEmitter = require("./emitter");
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| 66 | /**
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| 67 | * @param {CustomEvent<{ currentHash: string }>} event event or hash
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| 68 | */
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| 69 | var handler = function (event) {
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| 70 | lastHash = typeof event === "string" ? event : event.detail.currentHash;
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| 71 | if (!upToDate() && module.hot.status() === "idle") {
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| 72 | log("info", "[HMR] Checking for updates on the server...");
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| 73 | check();
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| 74 | }
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| 75 | };
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| 76 |
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| 77 | if (typeof EventTarget !== "undefined" && hotEmitter instanceof EventTarget) {
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| 78 | hotEmitter.addEventListener(
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| 79 | "webpackHotUpdate",
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| 80 | /** @type {EventListener} */
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| 81 | (handler)
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| 82 | );
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| 83 | } else {
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| 84 | hotEmitter.on("webpackHotUpdate", handler);
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| 85 | }
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| 86 |
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| 87 | log("info", "[HMR] Waiting for update signal from WDS...");
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| 88 | } else {
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| 89 | throw new Error("[HMR] Hot Module Replacement is disabled.");
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| 90 | }
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