Bug: sharable configs not loaded through CLI

[fedeci]

Environment

Node version: v16.13.1
npm version: v8.4.1
Local ESLint version: v8.11.0 (Currently used)
Global ESLint version: Not found
Operating System: darwin 21.2.0

What parser are you using?

@typescript-eslint/parser

What did you do?

Run:
npm i @fig/eslint-config-autocomplete
npx eslint -c @fig/autocomplete --fix ..

What did you expect to happen?

I expect to correctly load the sharable config using the --config (-c) flag from the CLI.

What actually happened?

Error: Cannot read config file: /Users/federico/Documents/withfig.nosync/autocomplete/@fig/autocomplete
Error: ENOENT: no such file or directory, open '/Users/federico/Documents/withfig.nosync/autocomplete/@fig/autocomplete'
    at Object.openSync (node:fs:585:3)
    at Object.readFileSync (node:fs:453:35)
    at readFile (/Users/federico/Documents/withfig.nosync/autocomplete/node_modules/@eslint/eslintrc/dist/eslintrc.cjs:2476:35)
    at loadLegacyConfigFile (/Users/federico/Documents/withfig.nosync/autocomplete/node_modules/@eslint/eslintrc/dist/eslintrc.cjs:2541:60)
    at loadConfigFile (/Users/federico/Documents/withfig.nosync/autocomplete/node_modules/@eslint/eslintrc/dist/eslintrc.cjs:2656:20)
    at ConfigArrayFactory._loadConfigData (/Users/federico/Documents/withfig.nosync/autocomplete/node_modules/@eslint/eslintrc/dist/eslintrc.cjs:2947:42)
    at ConfigArrayFactory.loadFile (/Users/federico/Documents/withfig.nosync/autocomplete/node_modules/@eslint/eslintrc/dist/eslintrc.cjs:2813:40)
    at createCLIConfigArray (/Users/federico/Documents/withfig.nosync/autocomplete/node_modules/@eslint/eslintrc/dist/eslintrc.cjs:3621:35)
    at new CascadingConfigArrayFactory (/Users/federico/Documents/withfig.nosync/autocomplete/node_modules/@eslint/eslintrc/dist/eslintrc.cjs:3697:29)
    at new CLIEngine (/Users/federico/Documents/withfig.nosync/autocomplete/node_modules/eslint/lib/cli-engine/cli-engine.js:607:36)

Participation

• I am willing to submit a pull request for this issue.

Additional comments

Also npx eslint -c "@fig/autocomplete" --fix . and npx eslint -c @fig/eslint-config-autocomplete --fix . don't work.

[mdjermanovic]

Hi @fedeci, thanks for the issue!

This works as intended, the -c option expects a file path to a configuration file. This option isn't designed to support package names and config specifiers.

Shareable configs are designed to work with the extends feature of configuration files. You can make an eslint config file in your project and add shareable configs to extends:

//---------- .eslintrc.js -------------

module.exports = {
    extends: ["@fig/eslint-config-autocomplete"]
};

Since this is not a bug, and there's already an open issue with a request to support loading shareable configs from the command line, I'm closing this issue as a duplicate of #14574.

[fedeci]

Thanks for the prompt response @mdjermanovic! Is there any proposal to add back the possibility to specify an extends from the CLI?

[mdjermanovic]

Is there any proposal to add back the possibility to specify an extends from the CLI?

I think not, and we wouldn't be able to accept that proposal because the current eslintrc config system is frozen as we are working on the new flat config system (#13481), which doesn't have the extends concept. We can only evaluate loading shareable configs from CLI in the context of the new config system (#14574).