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• I havesearched for related issues and found none that match my proposal.
• I have searched thecurrent rule list and found no rules that match my proposal.
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Relevant Package

parser

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• I believe my proposal would be useful to the broader TypeScript community (meaning it is not a niche proposal).

Description

Re-filing#251 now that ESLint's flat config is stable: asking users to manually settsconfigRootDir is a mild config pain:

• It's an extra line of code plumbing to memorize a need for
• Its default value is >99% of the time just the current file's directory...
• ...which has some nuance in how to retrieve (CJS/ESM;import.meta.dirname Node.js support)

#251 was closed as noted in#251 (comment) because ESLint doesn't tell parsers the eslintrc path(s). But, now that we're on flat config, maybe there's a way to get the single flat config file / directory. That would be ideal IMO.

If we could infertsconfigRootDir thenhttps://typescript-eslint.io/getting-started/typed-linting would be simplified by a line:

 import eslint from '@eslint/js'; import tseslint from 'typescript-eslint';  export default tseslint.config(   eslint.configs.recommended,   tseslint.configs.recommendedTypeChecked,   {     languageOptions: {       parserOptions: {         projectService: true,-        tsconfigRootDir: import.meta.dirname,       },     },   }, );

...and#10507 would be unblocked, which would allow simplifying that config in the next major version to the much cleaner:

 import eslint from '@eslint/js'; import tseslint from 'typescript-eslint';  export default tseslint.config(   eslint.configs.recommended,   tseslint.configs.recommendedTypeChecked,-  {-    languageOptions: {-      parserOptions: {-        projectService: true,-      },-    },-  }, );

✨.

Additional Info

Investigation needed:

1. Is there an ESLint API / something provided to parsers that would help with this?
2. If not, can we file an issue on ESLint core asking for it?

💖