TL;DR

The issue can be resolved by avoiding the synchronous import of the heavy config module during Commander's help generation phase.

Guidance

• Identify and refactor the readCliBannerTaglineMode() function in src/cli/banner-config-lite.ts to lazily import createConfigIO from the config module, allowing the import graph to fully evaluate before generating help text.
• Consider using asynchronous help text generation via Commander's addHelpText('afterAll') callback or a similar mechanism to avoid deadlocking the main thread.
• Verify that the createConfigIO().loadConfig() call is not blocking the main thread by checking for any synchronous I/O operations or long-running computations.
• Review the transitive import graph of the config module to identify potential optimization opportunities, such as reducing the number of imported modules or using a more efficient plugin discovery mechanism.

Example

// Before
import { createConfigIO } from './config-module';
const configIO = createConfigIO();

// After (lazy import)
let configIO: any;
function getConfigIO() {
  if (!configIO) {
    const { createConfigIO } = await import('./config-module');
    configIO = createConfigIO();
  }
  return configIO;
}

Notes

The provided solution assumes that the issue is caused by the synchronous import of the heavy config module during Commander's help generation phase. However, the actual root cause may be more complex, and additional debugging may be required to fully resolve the issue.

Recommendation

Apply workaround: refactor the readCliBannerTaglineMode() function to use lazy imports and asynchronous help text generation to avoid deadlocking the main thread. This approach allows for a more efficient and responsive help generation process without requiring significant changes to the underlying config module.