rollup.config.js

// @ts-check

import commonjs from "@rollup/plugin-commonjs";
import resolve from "@rollup/plugin-node-resolve";
import typescript from "@rollup/plugin-typescript";
import css from "rollup-plugin-css-only";
import svelte from "rollup-plugin-svelte";
import { terser } from "rollup-plugin-terser";
import sveltePreprocess from "svelte-preprocess";
import inlineSvg from "rollup-plugin-inline-svg";

const production = !process.env.ROLLUP_WATCH;

/**
 * @param {string} filename
 * @param {boolean} useSvelte
 */
function createConfig(filename, useSvelte = false) {
  return {
    input: `src/${filename}.ts`,
    output: {
      format: "iife",
      file: `public/build/${filename}.js`,
    },
    plugins: [
      useSvelte &&
        svelte({
          compilerOptions: {
            // enable run-time checks when not in production
            dev: !production,
          },
          preprocess: sveltePreprocess(),
        }),

      // we'll extract any component CSS out into
      // a separate file - better for performance
      css({ output: `${filename}.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(),
      typescript({
        rootDir: "./src",
      }),

      inlineSvg({
        removeTags: false,
        warnTags: [],
        removingTags: ["title", "desc", "defs", "style"],
        removeSVGTagAttrs: true,
        removingTagAttrs: [],
        warnTagAttrs: [],
      }),

      // If we're building for production (npm run build
      // instead of npm run dev), minify
      production && terser(),
    ],
  };
}

export default [createConfig("sugu", true), createConfig("background")];