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62 lines
1.6 KiB
62 lines
1.6 KiB
/* |
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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 __resourceQuery */ |
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if (module.hot) { |
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var log = require("./log"); |
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var checkForUpdate = function checkForUpdate(fromUpdate) { |
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module.hot |
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.check() |
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.then(function(updatedModules) { |
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if (!updatedModules) { |
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if (fromUpdate) log("info", "[HMR] Update applied."); |
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else log("warning", "[HMR] Cannot find update."); |
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return; |
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} |
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|
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return module.hot |
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.apply({ |
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ignoreUnaccepted: true, |
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onUnaccepted: function(data) { |
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log( |
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"warning", |
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"Ignored an update to unaccepted module " + |
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data.chain.join(" -> ") |
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); |
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} |
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}) |
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.then(function(renewedModules) { |
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require("./log-apply-result")(updatedModules, renewedModules); |
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checkForUpdate(true); |
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return null; |
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}); |
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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."); |
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log("warning", "[HMR] " + log.formatError(err)); |
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log("warning", "[HMR] You need to restart the application!"); |
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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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process.on(__resourceQuery.substr(1) || "SIGUSR2", function() { |
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if (module.hot.status() !== "idle") { |
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log( |
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"warning", |
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"[HMR] Got signal but currently in " + module.hot.status() + " state." |
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); |
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log("warning", "[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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