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rollup.config.js
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rollup.config.js
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/* eslint-disable @typescript-eslint/no-var-requires */
const bundleSize = require('rollup-plugin-bundle-size');
const commonjs = require('@rollup/plugin-commonjs');
const { default: dts } = require('rollup-plugin-dts');
const resolve = require('@rollup/plugin-node-resolve');
const typescript = require('rollup-plugin-typescript2');
const pkg = require('./package.json');
const input = './lib/index.ts';
// Third party libraries, categorized by ESM/CJS compatibility.
const libraries = {
multi: [
'zod',
'isomorphic-unfetch',
'validator/lib/isIP.js',
'validator/lib/isIPRange.js',
'validator/lib/isISO31661Alpha2.js',
],
esmOnly: ['formdata-polyfill/esm.min.js', 'fetch-blob/from.js'],
};
const config = [
{
input,
output: {
file: pkg.exports['.'].require,
format: 'cjs',
},
plugins: [commonjs(), resolve(), typescript(), bundleSize()],
external: libraries.multi,
},
{
input,
output: {
file: pkg.exports['.'].import,
format: 'esm',
},
plugins: [typescript(), bundleSize()],
external: [...libraries.multi, ...libraries.esmOnly],
},
{
input,
output: {
file: pkg.exports['.'].types,
format: 'esm',
},
plugins: [dts(), bundleSize()],
},
];
module.exports = config;