next
Version:
The React Framework
77 lines (76 loc) • 3.48 kB
JavaScript
/* globals __webpack_hash__ */ import { displayContent } from './fouc';
import initOnDemandEntries from './on-demand-entries-client';
import { addMessageListener, connectHMR } from '../components/react-dev-overlay/pages/websocket';
import { HMR_ACTIONS_SENT_TO_BROWSER } from '../../server/dev/hot-reloader-types';
const data = JSON.parse(document.getElementById('__NEXT_DATA__').textContent);
window.__NEXT_DATA__ = data;
let { assetPrefix, page } = data;
assetPrefix = assetPrefix || '';
let mostRecentHash = null;
/* eslint-disable-next-line */ let curHash = __webpack_hash__;
const hotUpdatePath = assetPrefix + (assetPrefix.endsWith('/') ? '' : '/') + '_next/static/webpack/';
// Is there a newer version of this code available?
function isUpdateAvailable() {
// __webpack_hash__ is the hash of the current compilation.
// It's a global variable injected by Webpack.
/* eslint-disable-next-line */ return mostRecentHash !== __webpack_hash__;
}
// Webpack disallows updates in other states.
function canApplyUpdates() {
// @ts-expect-error TODO: module.hot exists but type needs to be added. Can't use `as any` here as webpack parses for `module.hot` calls.
return module.hot.status() === 'idle';
}
// This function reads code updates on the fly and hard
// reloads the page when it has changed.
async function tryApplyUpdates() {
if (!isUpdateAvailable() || !canApplyUpdates()) {
return;
}
try {
const res = await fetch(typeof __webpack_runtime_id__ !== 'undefined' ? "" + hotUpdatePath + curHash + "." + __webpack_runtime_id__ + ".hot-update.json" : "" + hotUpdatePath + curHash + ".hot-update.json");
const jsonData = await res.json();
const curPage = page === '/' ? 'index' : page;
// webpack 5 uses an array instead
const pageUpdated = (Array.isArray(jsonData.c) ? jsonData.c : Object.keys(jsonData.c)).some((mod)=>{
return mod.indexOf("pages" + (curPage.startsWith('/') ? curPage : "/" + curPage)) !== -1 || mod.indexOf(("pages" + (curPage.startsWith('/') ? curPage : "/" + curPage)).replace(/\//g, '\\')) !== -1;
});
if (pageUpdated) {
window.location.reload();
} else {
curHash = mostRecentHash;
}
} catch (err) {
console.error('Error occurred checking for update', err);
window.location.reload();
}
}
addMessageListener((message)=>{
if (!('action' in message)) {
return;
}
try {
// actions which are not related to amp-dev
if (message.action === HMR_ACTIONS_SENT_TO_BROWSER.SERVER_ERROR || message.action === HMR_ACTIONS_SENT_TO_BROWSER.DEV_PAGES_MANIFEST_UPDATE) {
return;
}
if (message.action === HMR_ACTIONS_SENT_TO_BROWSER.SYNC || message.action === HMR_ACTIONS_SENT_TO_BROWSER.BUILT) {
if (!message.hash) {
return;
}
mostRecentHash = message.hash;
tryApplyUpdates();
} else if (message.action === HMR_ACTIONS_SENT_TO_BROWSER.RELOAD_PAGE) {
window.location.reload();
}
} catch (err) {
var _err_stack;
console.warn('[HMR] Invalid message: ' + JSON.stringify(message) + '\n' + ((_err_stack = err == null ? void 0 : err.stack) != null ? _err_stack : ''));
}
});
connectHMR({
assetPrefix,
path: '/_next/webpack-hmr'
});
displayContent();
initOnDemandEntries(data.page);
//# sourceMappingURL=amp-dev.js.map