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rollup.config.js
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rollup.config.js
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import resolve from '@rollup/plugin-node-resolve';
import terser from '@rollup/plugin-terser';
import {readFileSync} from 'fs';
const {author, name, version, homepage, main, module, jsdelivr, license} = JSON.parse(readFileSync('./package.json'));
const banner = `/*!
* ${name} v${version}
* ${homepage}
* (c) ${(new Date(process.env.SOURCE_DATE_EPOCH ? (process.env.SOURCE_DATE_EPOCH * 1000) : new Date().getTime())).getFullYear()} ${author}
* Released under the ${license} license
*/`;
const input = 'src/index.js';
const commonOutputOptions = {
banner,
format: 'umd',
indent: false,
name,
sourcemap: true,
};
export default [
// ESM
{
input,
plugins: [
resolve()
],
external: _ => (/node_modules/).test(_),
output: {
...commonOutputOptions,
file: module,
format: 'esm',
}
},
// UMD
{
input,
plugins: [
resolve()
],
output: {
...commonOutputOptions,
file: main,
}
},
// UMD minified
{
input,
plugins: [
resolve(),
terser({
output: {
preamble: banner
}
})
],
output: {
...commonOutputOptions,
file: jsdelivr,
banner: undefined,
}
},
];