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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 pkg from './package.json';
const babelRuntimeVersion = pkg.dependencies['@babel/runtime'].replace(/^[^0-9]*/, '');
const makeExternalPredicate = externalArr => {
if (externalArr.length === 0) {
return () => false;
}
const pattern = new RegExp(`^(${externalArr.join('|')})($|/)`);
return id => pattern.test(id);
};
export default [
// CommonJS
{
input: 'src/index.js',
output: {
exports: 'auto',
file: 'lib/index.js',
format: 'cjs',
indent: false
},
external: makeExternalPredicate([
...Object.keys(pkg.dependencies || {}),
]),
plugins: [
nodeResolve(),
babel({
plugins: [['@babel/plugin-transform-runtime', { version: babelRuntimeVersion }]],
babelHelpers: 'runtime'
})
]
},
// ES
{
input: 'src/index.js',
output: {
file: 'es/index.js',
format: 'es',
indent: false
},
external: makeExternalPredicate([
...Object.keys(pkg.dependencies || {}),
]),
plugins: [
nodeResolve(),
babel({
plugins: [
['@babel/plugin-transform-runtime', { version: babelRuntimeVersion, useESModules: true }],
],
babelHelpers: 'runtime'
}),
],
},
];