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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 resolve from '@rollup/plugin-node-resolve';
import { terser } from 'rollup-plugin-terser';
import sveltePreprocess from 'svelte-preprocess';
import typescript from '@rollup/plugin-typescript';
import css from 'rollup-plugin-css-only';
import pkg from './package.json';
const production = !process.env.ROLLUP_WATCH;
export default ["es", "umd"].map((format) => {
const UMD = format === "umd";
return {
input: pkg.svelte,
output: [
{
name: UMD ? pkg.name : undefined,
file: UMD ? pkg.main : pkg.module,
format,
sourcemap: true
}
],
plugins: [
svelte({
preprocess: sveltePreprocess({ sourceMap: !production }),
compilerOptions: {
// generate: production ? 'dom' : 'ssr',
hydratable: true,
dev: !production
}
}),
css({ output: pkg.styles }),
resolve(),
commonjs(),
typescript(),
production && terser()
],
watch: {
clearScreen: false
}
};
});