rollup.config.js

import peerDepsExternal from "rollup-plugin-peer-deps-external";
import resolve from "@rollup/plugin-node-resolve";
import commonjs from "@rollup/plugin-commonjs";
import typescript from "rollup-plugin-typescript2";
import postcss from "rollup-plugin-postcss";
import copy from "rollup-plugin-copy";
import multi from '@rollup/plugin-multi-entry';
import externals from "rollup-plugin-node-externals";

const packageJson = require("./package.json");

export default {
  input: ["src/index.ts"],
  output: [
    {
      file: packageJson.main,
      format: "cjs",
      sourcemap: true,
    },
    {
      file: packageJson.module,
      format: "esm",
      sourcemap: true,
    },
  ],
  context: "this",
  plugins: [
    externals(),
    multi(),
    peerDepsExternal(),
    resolve({
      browser: true,
    }),
    commonjs(),
    typescript({ useTsconfigDeclarationDir: true }),
    postcss(),
    copy({
      targets: [
        { src: "src/assets/**/*", dest: "lib/assets" },
        {
          src: "src/components/index.scss",
          dest: "lib/components",
          rename: "index.scss",
        },
        {
          src: "src/styles/variables.scss",
          dest: "lib/styles",
          rename: "variables.scss",
        },
        {
          src: "src/styles/breakpoints.scss",
          dest: "lib/styles",
          rename: "breakpoints.scss",
        },
        {
          src: "src/styles/web-shared.scss",
          dest: "lib/styles",
          rename: "web-shared.scss",
        },
      ],
    }),
  ],
};