blb-throne-of-the-bone-king/socket/clear.mjs

import 'dotenv/config';

import { execFile } from 'node:child_process';
import { promisify } from 'node:util';

const execFileAsync = promisify(execFile);
const ports = [
  process.env.WEB_DEV_PORT ?? '5173',
  process.env.TOOLKIT_SOCKET_PORT ?? '5175',
];

async function getPortProcessIds(port) {
  try {
    const { stdout } = await execFileAsync('lsof', ['-ti', `tcp:${port}`]);

    return stdout
      .split('\n')
      .map(processId => processId.trim())
      .filter(Boolean);
  } catch (error) {
    if (error != null && typeof error === 'object' && 'code' in error) {
      return [];
    }

    throw error;
  }
}

async function killProcess(processId, port) {
  try {
    await execFileAsync('kill', ['-TERM', processId]);
    console.log(`[dev:clear] stopped process ${processId} on port ${port}`);
  } catch {
    console.log(`[dev:clear] process ${processId} on port ${port} already stopped`);
  }
}

for (const port of ports) {
  const processIds = await getPortProcessIds(port);

  if (processIds.length === 0) {
    console.log(`[dev:clear] no process listening on port ${port}`);
    continue;
  }

  await Promise.all(
    processIds.map(processId => killProcess(processId, port)),
  );
}