next-bundle-analyzer/dist/plugin/utils/getPages.js

NextJS version of Webpack Bundle Analyzer.

'use strict';

var constants = require('../constants.js');

function getPages(buildManifest, chunks, commonChunks) {
    const pages = [];
    Object.entries(buildManifest.pages).forEach(([label, pageChunks]) => {
        if (label === '/_app') {
            return;
        }
        let totalGzipSize = 0;
        let totalParsedSize = 0;
        let totalStatSize = 0;
        let gzipSize = 0;
        let parsedSize = 0;
        let statSize = 0;
        pageChunks
            .filter((chunk) => !chunk.endsWith('.css'))
            .forEach((chunk) => {
            const chunkData = chunks.find((c) => c.label === chunk);
            if (chunkData === undefined) {
                throw new Error(`${constants.PLUGIN_NAME}: unable to find chunk data for ${chunk}`);
            }
            totalGzipSize += chunkData.gzipSize;
            totalParsedSize += chunkData.parsedSize;
            totalStatSize += chunkData.statSize;
        });
        pageChunks
            .filter((chunk) => !chunk.endsWith('.css') &&
            !commonChunks.some((commonChunk) => commonChunk.chunk === chunk))
            .forEach((chunk) => {
            const chunkData = chunks.find((c) => c.label === chunk);
            if (chunkData === undefined) {
                throw new Error(`${constants.PLUGIN_NAME}: unable to find chunk data for ${chunk}`);
            }
            gzipSize += chunkData.gzipSize;
            parsedSize += chunkData.parsedSize;
            statSize += chunkData.statSize;
        });
        pages.push({
            label,
            chunks: pageChunks,
            gzipSize,
            parsedSize,
            statSize,
            totalGzipSize,
            totalParsedSize,
            totalStatSize,
        });
    });
    return pages;
}

exports.getPages = getPages;