rollup.config.mjs

// Copyright 2017-2022 @subwallet/base authors & contributors
// SPDX-License-Identifier: Apache-2.0


import pluginAlias from '@rollup/plugin-alias';
import pluginCommonjs from '@rollup/plugin-commonjs';
import pluginInject from '@rollup/plugin-inject';
import pluginJson from '@rollup/plugin-json';
import {nodeResolve as pluginResolve} from '@rollup/plugin-node-resolve';
import fs from 'fs';
import path from 'path';
import pluginCleanup from 'rollup-plugin-cleanup';

function sanitizePkg(pkg) {
  return pkg.replace('@subwallet/', '');
}

function createName(input) {
  return `subwallet-${sanitizePkg(input)}`
    .toLowerCase()
    .replace(/[^a-zA-Z0-9]+(.)/g, (_, c) => c.toUpperCase());
}

export function createInput(pkg, _index) {
  const partialPath = `packages/${sanitizePkg(pkg)}/build`;
  const index = (_index || fs.existsSync(path.join(process.cwd(), partialPath, 'bundle.js')) ? 'bundle.js' : (JSON.parse(fs.readFileSync(path.join(process.cwd(), partialPath, 'package.json'), 'utf8')).browser || 'index.js'));

  return `${partialPath}/${index}`;
}

export function createOutput(_pkg, external, globals) {
  const pkg = sanitizePkg(_pkg);

  return {
    file: `packages/${pkg}/build/bundle-subwallet-${pkg}.js`, format: 'umd', globals: external.reduce((all, pkg) => ({
      [pkg]: createName(pkg), ...all
    }), {...globals}), intro: 'const global = window;', name: createName(_pkg), preferConst: true
  };
}

export function createBundle({entries = {}, external, globals = {}, index, inject = {}, pkg}) {
  return {
    external,
    input: createInput(pkg, index),
    output: createOutput(pkg, external, globals),
    plugins: [pluginAlias({entries}), pluginJson(), pluginCommonjs(), pluginInject(inject), pluginResolve({browser: true}), pluginCleanup()]
  };
}

const pkgs = [
  '@subwallet/chain-list',
];

const external = [...pkgs];

const entries = ['chain-list'].reduce((all, p) => ({
  ...all, [`@subwallet/${p}`]: path.resolve(process.cwd(), `packages/${p}/build`)
}), {});

const overrides = {};

export default pkgs.map((pkg) => {
  const override = (overrides[pkg] || {});

  return createBundle({
    external, pkg, ...override, entries: {
      ...entries, ...(override.entries || {})
    }
  });
});