build.mjs

import { createHash } from 'crypto';
import { readdir, readFile, writeFile, rm } from 'fs/promises';
import { existsSync } from 'fs';
import { build } from 'esbuild';

const MD5 = (data) => createHash('md5').update(data).digest('hex').toString();

if (existsSync('dist')) await rm('dist', { recursive: true });

for (const plug of await readdir('plugins')) {
  const outfile = `dist/${plug}/plugin.js`;
  const entryPoint = `plugins/${plug}/index.js`;

  await build({
    entryPoints: [entryPoint],
    bundle: true,
    outfile: outfile,
    minify: true,
    plugins: [
      {
        name: 'solid-shelter-resolver',
        setup(build) {
          build.onResolve({ filter: /solid-js\/web/ }, ({ path }) => ({
            path,
            namespace: 'shltr-res-ns',
          }));
          build.onLoad({ filter: /.*/, namespace: 'shltr-res-ns' }, () => ({
            contents: 'module.exports = shelter.solidWeb',
            loader: 'js',
          }));
        },
      },
    ],
    globalName: 'e',
  });

  await writeFile(outfile, (await readFile(outfile)).toString().replace(/var e\s*=/, ''));

  const manifest = (await readFile(`plugins/${plug}/plugin.json`)).toString();

  await writeFile(
    `dist/${plug}/plugin.json`,
    manifest.replace('<HASH_PLACEHOLDER>', MD5((await readFile(outfile)).toString())),
  );
}