1 |
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2 |
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3 |
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4 |
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5 |
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6 | if (module.hot) {
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7 | var lastHash;
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8 | var upToDate = function upToDate() {
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9 | return lastHash.indexOf(__webpack_hash__) >= 0;
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10 | };
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11 | var log = require("./log");
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12 | var check = function check() {
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13 | module.hot
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14 | .check()
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15 | .then(function (updatedModules) {
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16 | if (!updatedModules) {
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17 | log("warning", "[HMR] Cannot find update. Need to do a full reload!");
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18 | log(
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19 | "warning",
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20 | "[HMR] (Probably because of restarting the webpack-dev-server)"
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21 | );
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22 | return;
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23 | }
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24 |
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25 | return module.hot
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26 | .apply({
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27 | ignoreUnaccepted: true,
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28 | ignoreDeclined: true,
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29 | ignoreErrored: true,
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30 | onUnaccepted: function (data) {
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31 | log(
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32 | "warning",
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33 | "Ignored an update to unaccepted module " +
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34 | data.chain.join(" -> ")
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35 | );
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36 | },
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37 | onDeclined: function (data) {
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38 | log(
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39 | "warning",
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40 | "Ignored an update to declined module " +
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41 | data.chain.join(" -> ")
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42 | );
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43 | },
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44 | onErrored: function (data) {
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45 | log("error", data.error);
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46 | log(
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47 | "warning",
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48 | "Ignored an error while updating module " +
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49 | data.moduleId +
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50 | " (" +
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51 | data.type +
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52 | ")"
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53 | );
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54 | }
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55 | })
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56 | .then(function (renewedModules) {
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57 | if (!upToDate()) {
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58 | check();
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59 | }
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60 |
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61 | require("./log-apply-result")(updatedModules, renewedModules);
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62 |
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63 | if (upToDate()) {
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64 | log("info", "[HMR] App is up to date.");
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65 | }
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66 | });
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67 | })
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68 | .catch(function (err) {
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69 | var status = module.hot.status();
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70 | if (["abort", "fail"].indexOf(status) >= 0) {
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71 | log(
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72 | "warning",
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73 | "[HMR] Cannot check for update. Need to do a full reload!"
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74 | );
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75 | log("warning", "[HMR] " + log.formatError(err));
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76 | } else {
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77 | log("warning", "[HMR] Update check failed: " + log.formatError(err));
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78 | }
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79 | });
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80 | };
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81 | var hotEmitter = require("./emitter");
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82 | hotEmitter.on("webpackHotUpdate", function (currentHash) {
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83 | lastHash = currentHash;
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84 | if (!upToDate()) {
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85 | var status = module.hot.status();
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86 | if (status === "idle") {
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87 | log("info", "[HMR] Checking for updates on the server...");
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88 | check();
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89 | } else if (["abort", "fail"].indexOf(status) >= 0) {
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90 | log(
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91 | "warning",
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92 | "[HMR] Cannot apply update as a previous update " +
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93 | status +
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94 | "ed. Need to do a full reload!"
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95 | );
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96 | }
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97 | }
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98 | });
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99 | log("info", "[HMR] Waiting for update signal from WDS...");
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100 | } else {
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101 | throw new Error("[HMR] Hot Module Replacement is disabled.");
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102 | }
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