next/dist/esm/build/get-static-info-including-layouts.js

The React Framework

import { join, dirname } from 'path';
import fs from 'fs';
import { reduceAppConfig, isAppBuiltinPage } from './utils';
import { getAppPageStaticInfo, getPageStaticInfo } from './analysis/get-page-static-info';
import { PAGE_TYPES } from '../lib/page-types';
import { isAppPageRoute } from '../lib/is-app-page-route';
import { UNDERSCORE_GLOBAL_ERROR_ROUTE_ENTRY } from '../shared/lib/entry-constants';
export async function getStaticInfoIncludingLayouts({ isInsideAppDir, pageExtensions, pageFilePath, appDir, config: nextConfig, isDev, page }) {
    // TODO: sync types for pages: PAGE_TYPES, ROUTER_TYPE, 'app' | 'pages', etc.
    const pageType = isInsideAppDir ? PAGE_TYPES.APP : PAGE_TYPES.PAGES;
    const pageStaticInfo = await getPageStaticInfo({
        nextConfig,
        pageFilePath,
        isDev,
        page,
        pageType
    });
    if (pageStaticInfo.type === PAGE_TYPES.PAGES || !appDir) {
        return pageStaticInfo;
    }
    // Skip inheritance for global-error pages - always use default config
    if (page === UNDERSCORE_GLOBAL_ERROR_ROUTE_ENTRY) {
        return pageStaticInfo;
    }
    const segments = [
        pageStaticInfo
    ];
    // inherit from layout files only if it's a page route and not a builtin page
    if (isAppPageRoute(page) && !isAppBuiltinPage(pageFilePath)) {
        const layoutFiles = [];
        const potentialLayoutFiles = pageExtensions.map((ext)=>'layout.' + ext);
        let dir = dirname(pageFilePath);
        // Uses startsWith to not include directories further up.
        while(dir.startsWith(appDir)){
            for (const potentialLayoutFile of potentialLayoutFiles){
                const layoutFile = join(dir, potentialLayoutFile);
                if (!fs.existsSync(layoutFile)) {
                    continue;
                }
                layoutFiles.push(layoutFile);
            }
            // Walk up the directory tree
            dir = join(dir, '..');
        }
        for (const layoutFile of layoutFiles){
            const layoutStaticInfo = await getAppPageStaticInfo({
                nextConfig,
                pageFilePath: layoutFile,
                isDev,
                page,
                pageType: isInsideAppDir ? PAGE_TYPES.APP : PAGE_TYPES.PAGES
            });
            segments.unshift(layoutStaticInfo);
        }
    }
    const config = reduceAppConfig(segments);
    return {
        ...pageStaticInfo,
        config,
        runtime: config.runtime,
        preferredRegion: config.preferredRegion,
        maxDuration: config.maxDuration
    };
}

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