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rollup.config.js
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rollup.config.js
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import svelte from 'rollup-plugin-svelte';
import resolve from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import serve from 'rollup-plugin-serve'
import postCss from 'rollup-plugin-postcss';
import livereload from 'rollup-plugin-livereload';
import { terser } from 'rollup-plugin-terser';
const production = !process.env.ROLLUP_WATCH;
export default {
input: 'src/main.js',
output: {
sourcemap: true,
format: 'iife',
name: 'app',
file: 'public/build/bundle.js'
},
plugins: [
// css({ output: 'public/build/extra.css' }),
postCss({
extract: 'extra.css',
minimize: production
}),
svelte({
compilerOptions: {
// enable run-time checks when not in production
dev: !production,
// we'll extract any component CSS out into
// a separate file - better for performance
css: css => {
css.write('bundle.css');
}
}
}),
// If you have external dependencies installed from
// npm, you'll most likely need these plugins. In
// some cases you'll need additional configuration -
// consult the documentation for details:
// https:/rollup/plugins/tree/master/packages/commonjs
resolve({
browser: true,
dedupe: ['svelte']
}),
commonjs(),
// In dev mode, call `npm run start` once
// the bundle has been generated
!production && serve({
contentBase: 'public',
host: 'localhost',
port: 9500
}),
// Watch the `public` directory and refresh the
// browser on changes when not in production
!production && livereload('public'),
// If we're building for production (npm run build
// instead of npm run dev), minify
production && terser()
],
watch: {
clearScreen: false
}
};