postbuild.js

/* eslint-disable no-console */
const { resolve, join, basename } = require("path");
const { readFile, writeFile, copy } = require("fs-extra");
const packagePath = process.cwd();
const distPath = join(packagePath, "./dist");

const writeJson = (targetPath, obj) => writeFile(targetPath, JSON.stringify(obj, null, 2), "utf8");

async function createPackageFile() {
	const packageData = await readFile(resolve(packagePath, "./package.json"), "utf8");
	const { scripts, devDependencies, ...packageOthers } = JSON.parse(packageData);
	const newPackageData = {
		...packageOthers,
		private: false,
		typings: "./index.d.ts",
		main: "./cjs/index.js",
		module: "./index.js",
	};

	const targetPath = resolve(distPath, "./package.json");

	await writeJson(targetPath, newPackageData);
	console.log(`Created package.json in ${targetPath}`);
}

async function includeFileInBuild(file) {
	const sourcePath = resolve(packagePath, file);
	const targetPath = resolve(distPath, basename(file));
	await copy(sourcePath, targetPath);
	console.log(`Copied ${sourcePath} to ${targetPath}`);
}

async function run() {
	try {
		await createPackageFile();
		//await includeFileInBuild("./README.md");
		// await includeFileInBuild('../../LICENSE');
	} catch (err) {
		console.error(err);
		process.exit(1);
	}
}

run();