[Feature]: Support loglevel in rsbuild

[10Derozan]

What problem does this feature solve?

We can custom loglevel in rsbuild and configure different level in different instance.

What does the proposed API look like?

maybe dev.loglevel, output.loglevel.

[chenjiahan]

Try this:

import { logger } from '@rsbuild/core';

logger.level = 'xxx';

• https://rsbuild.dev/api/javascript-api/core#logger
• https://github.com/rspack-contrib/rslog?tab=readme-ov-file#log-level

[chenjiahan]

The above method will affect all instances. We may need to provide a way to configure logLevel for different instances.

[10Derozan]

I want that instance is independent, for example, I have created two rsbuild instance, if use

import { logger } from '@rsbuild/core';

logger.level = 'xxx';

The another will be influenced also.

[10Derozan]

The above method will affect all instances. We may need to provide a way to configure logLevel for different instances.

Yes, you are right.

[chenjiahan]

This may be difficult to achieve because the code in Rsbuild does not get the logger from the Rsbuild instance, but directly imports the logger module.