LSP-ESLint should support eslint.config.js-files

[4lph4-Ph4un]

The newer versions of ESLint read configurations from eslint.config.js-files and many new JavaScript/TypeScript-projects already define their configurations this way. This file should be added to the files lsp-mode searches for configuration when initializing the client!

More about this here: https://eslint.org/docs/latest/use/configure/configuration-files-new
Note that the disclaimer is outdated and nowadays you can just use the file without specifying any of the flags on the disclaimer. The flat-config is on by default!

Apart from this there will be coming support for eslint.config.cjs and eslint.config.mjs on the next major release for ESLint:
eslint/eslint#17909

[diegotsutsumi]

Is there any current workaround for using eslint.config.js and have lsp-mode work for eslint backend?

[diegotsutsumi]

As of today vscode-eslint is in version 2.4.4, this repository (lsp-mode) is using version 2.2.2 , it could be that an upgrade here solves the issue.

I can't upgrade it directly cause it's pulling from a compiled version from a non-official binary repo. I tried to hack an upgrade but spacemacs wouldn't recognize it.