rollup-plugin-jsy
January 3, 2026 ยท View on GitHub
Configuration for using JSY in RollupJS.
Quick Start
$ npm init jsy basic .
$ sh ./finish-init.sh
$ rm ./finish-init.sh
Manual Start
# optional; could also use `npm init .`
$ echo '{"private": true}' > package.json
# install devDependencies for JSY and RollupJS
$ npm install -D rollup rollup-plugin-jsy
Basic rollup.config.js Configuration:
import rpi_jsy from 'rollup-plugin-jsy'
const _cfg = {
plugins: [ rpi_jsy() ],
external: [],
}
export default [
...add_jsy('index'),
]
function * add_jsy( src_name, opt={} ) {
const input = `code/${ src_name }${ opt.ext || '.jsy' }`
yield { ..._cfg, input, output: [
{ file: `esm/${ src_name }.js`, format: 'es', sourcemap: true },
//{ file: `esm/${ src_name }.js`, format: 'es', sourcemap: true },
//{ file: `umd/${ src_name }.js`, format: 'umd', name: opt.name || src_name, sourcemap: true },
].filter( Boolean )
}
}
Add files and scripts to package.json :
{
"files": [ "cjs/", "esm/", "umd/" ],
"scripts": {
"clean": "rm -rf ./cjs/* ./esm/* ./umd/*",
"build": "rollup --config",
"watch": "npm -s run build -- --watch",
"pretest": "npm -s run build",
"test": "true"
}
}