33 lines
1.4 KiB
JavaScript
33 lines
1.4 KiB
JavaScript
/**
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* Logs information about a completed HMR to the console, the server (via a
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* `client-hmr-latency` event), and to `self.__NEXT_HMR_LATENCY_CB` (a debugging
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* hook).
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*
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* @param hasUpdate Set this to `false` to avoid reporting the HMR event via a
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* `client-hmr-latency` event or to `self.__NEXT_HMR_LATENCY_CB`. Used by
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* turbopack when we must report a message to the browser console (because we
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* already logged a "rebuilding" message), but it's not a real HMR, so we
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* don't want to impact our telemetry.
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*/ export default function reportHmrLatency(sendMessage, updatedModules, startMsSinceEpoch, endMsSinceEpoch, hasUpdate = true) {
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const latencyMs = endMsSinceEpoch - startMsSinceEpoch;
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console.log(`[Fast Refresh] done in ${latencyMs}ms`);
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if (!hasUpdate) {
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return;
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}
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sendMessage(JSON.stringify({
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event: 'client-hmr-latency',
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id: window.__nextDevClientId,
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startTime: startMsSinceEpoch,
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endTime: endMsSinceEpoch,
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page: window.location.pathname,
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updatedModules,
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// Whether the page (tab) was hidden at the time the event occurred.
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// This can impact the accuracy of the event's timing.
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isPageHidden: document.visibilityState === 'hidden'
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}));
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if (self.__NEXT_HMR_LATENCY_CB) {
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self.__NEXT_HMR_LATENCY_CB(latencyMs);
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}
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}
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//# sourceMappingURL=report-hmr-latency.js.map
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