ts-node is registered if generator is imported in a .js file

[bakasmarius]

Describe the bug

ts-node is registered if @asyncapi/generator is simply imported in a file, even though the constructor or any other of generator's methods is not called at all.
This means that after building a TypeScript project, when it is transpiled to JavaScript, ts-node is still registered, even though TypeScript is not needed anymore.
This also means that ts-node is registered in a JavaScript project that does not use TypeScript at all.
We noticed it because after adding nestjs-asyncapi (which uses @asyncapi/generator) to one of our bigger projects, the startup time of npm start increased by ~30 seconds.

How to Reproduce

Create a new file test.js which only imports @asyncapi/generator and does nothing else with it:

const { REGISTER_INSTANCE } = require('ts-node');
console.log(process[REGISTER_INSTANCE] == null); // prints "true"
const generator = require('@asyncapi/generator');
console.log(process[REGISTER_INSTANCE] == null); // prints "false"

run node test.js and look at the output

Expected behavior

ts-node is registered only when it's actually needed.

[github-actions]

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[derberg]

This is the reason -> https://github.com/asyncapi/generator/blob/master/lib/generator.js#L59 -> https://github.com/asyncapi/generator/blob/master/lib/utils.js#L163

This is why it was added: #519

Any suggestions?

Looks like it would be enough to call this register function only if there are .ts files in:

• https://github.com/asyncapi/generator/blob/master/lib/filtersRegistry.js#L35
• https://github.com/asyncapi/generator/blob/master/lib/hooksRegistry.js#L37

🤔

[derberg]

@magicmatatjahu wdyt?

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity 😴

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There can be many reasons why some specific issue has no activity. The most probable cause is lack of time, not lack of interest. AsyncAPI Initiative is a Linux Foundation project not owned by a single for-profit company. It is a community-driven initiative ruled under open governance model.

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Thank you for your patience ❤️

[AnimeshKumar923]

still valid? @derberg

[derberg]

@AnimeshKumar923 yes, go ahead with PR if you want 🙏🏼