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rollup.config.js
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rollup.config.js
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import babel from 'rollup-plugin-babel';
import nodeResolve from 'rollup-plugin-node-resolve';
import postcss from 'rollup-plugin-postcss';
import filesize from 'rollup-plugin-filesize';
import copy from 'rollup-plugin-copy';
import path from 'path';
import { terser } from 'rollup-plugin-terser';
import pkg from './package.json';
const root = process.platform === 'win32' ? path.resolve('/') : '/';
/**
* Externals
* @type {(id: string) => void}
*/
const external = (id) => {
return !id.startsWith('.') && !id.startsWith(root);
};
const input = './src/index.ts';
const getBabelOptions = ({ useESModules }) => ({
exclude: '**/node_modules/**',
extensions: ['.ts', '.tsx', '.js', '.jsx'],
runtimeHelpers: true,
plugins: [['@babel/plugin-transform-runtime', { useESModules }]],
});
const getSharedRollupPlugins = ({ extractCSS }) => [
nodeResolve({
extensions: ['.mjs', '.js', '.jsx', '.json', '.ts', '.tsx'],
dedupe: ['react', 'react-dom'],
}),
postcss({
extract: extractCSS,
inject: extractCSS,
minimize: true,
}),
copy({
targets: [
{ src: ['./src/assets/font/*'], dest: 'lib' },
{ src: 'LICENSE', dest: 'lib' },
{ src: 'README.md', dest: 'lib' },
{
src: 'package.json',
dest: 'lib',
transform: (content) => {
const {
scripts,
devDependencies,
husky,
release,
engines,
...keep
} = JSON.parse(content.toString());
return JSON.stringify(keep, null, 2);
},
},
],
}),
terser({
output: {
comments: false,
},
}),
];
const cjs = [
{
input,
output: {
file: `lib/${pkg.name}.cjs`,
format: 'cjs',
},
external,
plugins: [
babel(getBabelOptions({ useESModules: false })),
...getSharedRollupPlugins({ extractCSS: false }),
],
},
];
const esm = [
{
input,
external,
output: {
file: `lib/${pkg.name}.esm.js`,
format: 'esm',
},
plugins: [
babel(getBabelOptions({ useESModules: true })),
...getSharedRollupPlugins({
extractCSS: `styles.css`,
}),
filesize(),
],
},
];
let config;
switch (process.env.BUILD_ENV) {
case 'cjs':
config = cjs;
break;
case 'esm':
config = esm;
break;
default:
config = cjs.concat(esm);
}
module.exports = config;