readme-gen.mjs

import * as fs from 'fs/promises';

const capitalize = str => str.charAt(0).toUpperCase() + str.slice(1);

(await fs.writeFile('README.md', 
  "<!-- THIS FILE IS GENERATED AUTOMATICALLY, ALL CHANGES WILL BE LOST -->\n" + 
  "<!-- Generated from README_TEMPLATE.md -->\n\n" + 
  (await fs.readFile('README_TEMPLATE.md', 'utf-8'))
    .replace(
      '___TEST_TABLE___',
      (`
      <!--n--><!-- GENERATED TABLE START --><!--n-->
        <table>
          <tr>
            <th>Test suite</th>
            <th>Test name</th>
            <th>Result</th>
          </tr>
          ${
            (await fs.readFile('_test_result.json', 'utf-8'))
              .replace(/\r/g, '')
              .split('\n')
              .filter(str => str)
              .map(str => JSON.parse(str))
              .filter(row => 
                (row.type === 'test') && (
                  (row.event === "ok") || 
                  (row.event === "failed")
                )
              )
              .sort((a,b) => (a.name > b.name) ? 1 : ((b.name > a.name) ? -1 : 0))
              .map(row => `
                <tr>
                  <td><b>${ capitalize(row.name.split('::')[0].replace(/_/g, ' ')) }</b></td>
                  <td><code>${ row.name.split('::').slice(1).join('/') }</code></td>
                  <td align="center">${(row.event === 'ok') ? '✔️' : '❌'}</td>
                </tr>
              `).join('')
          }
        </table>
        <!--n--><!-- GENERATED TABLE END --><!--n-->
      `).replace(/\s{2,}/g, ' ').replace(/\>\s\</g, '><').replace(/\<\!\-\-n\-\-\>/g, '\n')
    )
));