swaf/rollup.config.js

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import path from "path";
import svelte from "rollup-plugin-svelte";
import {sveltePreprocess} from "svelte-preprocess/dist/autoProcess";
import cssOnlyRollupPlugin from "rollup-plugin-css-only";
import resolve from "@rollup/plugin-node-resolve";
import commonjs from "@rollup/plugin-commonjs";
import {terser} from "rollup-plugin-terser";
import livereloadRollupPlugin from "rollup-plugin-livereload";
const production = process.env.ENV === 'production';
const buildDir = process.env.BUILD_DIR;
const publicDir = process.env.PUBLIC_DIR;
const input = process.env.INPUT.split(':');
export default commandLineArgs => ({
input: input,
output: {
sourcemap: true,
format: 'es',
name: 'bundle',
dir: path.join(publicDir, 'js'),
entryFileNames: (chunkInfo) => {
const name = chunkInfo.facadeModuleId ?
path.relative(buildDir, chunkInfo.facadeModuleId) :
chunkInfo.name;
return name + '.js';
},
chunkFileNames: '[name].js',
},
plugins: [
svelte({
preprocess: sveltePreprocess({
typescript: {
tsconfigFile: 'tsconfig.svelte.json',
},
}),
compilerOptions: {
dev: !production,
hydratable: true,
},
}),
// Extract css into separate files
cssOnlyRollupPlugin({output: '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://github.com/rollup/plugins/tree/master/packages/commonjs
resolve({
browser: true,
dedupe: ['svelte'],
}),
commonjs(),
// Live reload in dev
!production && !!commandLineArgs.watch && livereloadRollupPlugin('public'),
// Minify in production
production && terser(),
],
watch: {
clearScreen: false,
},
});