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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 commonjs from '@rollup/plugin-commonjs';
import autoPreprocess from 'svelte-preprocess';
import resolve from '@rollup/plugin-node-resolve';
import livereload from 'rollup-plugin-livereload';
import { terser } from 'rollup-plugin-terser';
import postcss from 'rollup-plugin-postcss'
import json from '@rollup/plugin-json'
const production = !process.env.ROLLUP_WATCH;
function serve() {
let server;
function toExit() {
if (server) server.kill(0);
}
return {
writeBundle() {
if (server) return;
server = require('child_process').spawn('npm', ['run', 'start', '--', '--dev'], {
stdio: ['ignore', 'inherit', 'inherit'],
shell: true
});
process.on('SIGTERM', toExit);
process.on('exit', toExit);
}
};
}
export default {
input: 'src/main.js',
output: {
sourcemap: true,
format: 'iife',
name: 'app',
file: 'public/build/bundle.js',
inlineDynamicImports: true
},
plugins: [
svelte({
compilerOptions: {
// enable run-time checks when not in production
dev: !production,
css: css => {
css.write('public/bundle.css');
},
},
preprocess: autoPreprocess(),
emitCss: false,
}),
json({
compact: true
}),
// 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://github.com/rollup/plugins/tree/master/packages/commonjs
resolve({
browser: true,
dedupe: ['svelte']
}),
commonjs(),
postcss({
extract: true,
minimize: true,
use: [
[
"sass",
{
includePaths: ["./node_modules", "./node_modules/bulma", "./src"],
},
],
],
}),
// In dev mode, call `npm run start` once
// the bundle has been generated
!production && serve(),
// 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
}
};