@netlify/zip-it-and-ship-it/dist/utils/archive_size.js

Zip it and ship it

import { promises as fs } from 'fs';
import { extname } from 'path';
// Returns the input object with an additional `size` property containing the
// size of the file at `path` when it is a ZIP archive.
export const addArchiveSize = async (result) => {
    const { path } = result;
    if (extname(path) !== '.zip') {
        return result;
    }
    const { size } = await fs.stat(path);
    return { ...result, size };
};