Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Rule options from implicitly included plugins are not validated #11559

jarrodldavis opened this issue Mar 28, 2019 · 6 comments


None yet
5 participants
Copy link

commented Mar 28, 2019

Tell us about your environment

  • ESLint Version: v5.15.3
  • Node Version: v11.12.0
  • npm Version: 6.9.0

What parser (default, Babel-ESLint, etc.) are you using? default (Espree)

Please show your full configuration:

    "root": true,
    "env": {
        "commonjs": true,
        "es6": true,
        "node": true
    "extends": ["eslint:recommended", "plugin:node/recommended"],
    "globals": {
        "Atomics": "readonly",
        "SharedArrayBuffer": "readonly"
    "parserOptions": {
        "ecmaVersion": 2018
    "rules": {
        "node/exports-style": ["error", "invalid-option"]

What did you do? Please include the actual source code causing the issue, as well as the command that you used to run ESLint.

const none = require("./doesnt-exist");
$ ./node_modules/.bin/eslint .

What did you expect to happen?

I expected ESLint to report a validation error like so:

$ ./node_modules/.bin/eslint .
Error: /Users/jarrodldavis/source/repos/repro-eslint-validate-issue/explicit-plugin/.eslintrc.json:
	Configuration for rule "node/exports-style" is invalid:
	Value "invalid-option" should be equal to one of the allowed values.

    at validateRuleOptions (/Users/jarrodldavis/source/repos/repro-eslint-validate-issue/explicit-plugin/node_modules/eslint/lib/config/config-validator.js:133:19)
    at (/Users/jarrodldavis/source/repos/repro-eslint-validate-issue/explicit-plugin/node_modules/eslint/lib/config/config-validator.js:176:9)
    at Array.forEach (<anonymous>)
    at validateRules (/Users/jarrodldavis/source/repos/repro-eslint-validate-issue/explicit-plugin/node_modules/eslint/lib/config/config-validator.js:175:30)
    at Object.validate (/Users/jarrodldavis/source/repos/repro-eslint-validate-issue/explicit-plugin/node_modules/eslint/lib/config/config-validator.js:262:5)
    at loadFromDisk (/Users/jarrodldavis/source/repos/repro-eslint-validate-issue/explicit-plugin/node_modules/eslint/lib/config/config-file.js:544:19)
    at Object.load (/Users/jarrodldavis/source/repos/repro-eslint-validate-issue/explicit-plugin/node_modules/eslint/lib/config/config-file.js:587:20)
    at Config.getLocalConfigHierarchy (/Users/jarrodldavis/source/repos/repro-eslint-validate-issue/explicit-plugin/node_modules/eslint/lib/config.js:240:44)
    at Config.getConfigHierarchy (/Users/jarrodldavis/source/repos/repro-eslint-validate-issue/explicit-plugin/node_modules/eslint/lib/config.js:192:43)
    at Config.getConfigVector (/Users/jarrodldavis/source/repos/repro-eslint-validate-issue/explicit-plugin/node_modules/eslint/lib/config.js:299:21)

What actually happened? Please include the actual, raw output from ESLint.

The validation error is ignored and ESLint continues as if the plugin option is valid

$ ./node_modules/.bin/eslint .

  1:7   error  'none' is assigned a value but never used  no-unused-vars
  1:22  error  "./doesnt-exist" is not found              node/no-missing-require

✖ 2 problems (2 errors, 0 warnings)

I've created a reproduction repository that demonstrates the difference in plugin rule validation behavior when implicitly vs explicitly including a plugin.

I believe I have narrowed it down to this code:

const ruleMap = configContext.linterContext.getRules();
// validate the configuration before continuing
validator.validate(config, ruleMap.get.bind(ruleMap), configContext.linterContext.environments, resolvedPath.configFullName);
* If an `extends` property is defined, it represents a configuration file to use as
* a "parent". Load the referenced file and merge the configuration recursively.
if (config.extends) {
config = applyExtends(config, configContext, resolvedPath.filePath, dirname);

function validateRules(rulesConfig, ruleMapper, source = null) {
if (!rulesConfig) {

It validates the local config (including rule options) before applying config extensions, so the plugin and its rules aren't loaded into the linter until after the rules enabled by the local config are validated. Since the rules aren't present at the time of validation, validation is silently skipped.

@eslint eslint bot added the triage label Mar 28, 2019


This comment has been minimized.

Copy link

commented Mar 28, 2019

Thanks for the report. This seems like a serious issue, I'm surprised no one had noticed this before now.

I think this is probably already fixed by #11546 (cc @mysticatea).


This comment has been minimized.

Copy link

commented Mar 28, 2019

Thanks for the quick response!

I pulled down the issue11510 branch from #11546 to npm link into my reproduction repository and can confirm that the validation works as expected in the implicit-plugin directory.

@platinumazure platinumazure added bug core evaluating and removed triage labels Mar 28, 2019

@mysticatea mysticatea added accepted and removed evaluating labels Mar 29, 2019


This comment has been minimized.

Copy link

commented Mar 29, 2019

I confirmed that this reproduced.

And yes, #11546 fixed this bug because it has separated config schema validation and rule option validation. In #11546, ESLint validates config schema when each config file was read and validates rule options and environments when the configuration was determined for each source file (i.e. after all cascading config files, shareable configs, plugins, and parsers are loaded).


This comment has been minimized.

Copy link

commented Apr 4, 2019

I've pulled this into a vue project where I have been having problems with eslint and their plugin for months. I can confirm that this fixes the error I was having. Is this going to be merged in before version 6.0.0?


This comment has been minimized.

Copy link

commented Apr 4, 2019

We have published the final release of ESLint 5.x in the last week. We have a plan to release the first 6.0.0 pre-release in the next week and #11546 will be included in that.

Unfortunately, we have not backported bug fixes to old major versions because backporting makes complex our release process and we don't have enough human resource for that. And, #11546 changes our codebase about configuration from almost scratch and that fixes some bugs which are considered breaking changes, so it's hard to backport.

At a glance, the current --fix-type implementation doesn't support plugin rules because it caches rules before finding any configs... :(


This comment has been minimized.

Copy link

commented Apr 4, 2019

Great. #11546 seems to fix the issue for --fix-type as well. I'll keep my eyes peeled for the releases.

mysticatea added a commit that referenced this issue Apr 9, 2019

@mysticatea mysticatea self-assigned this Apr 13, 2019

mysticatea added a commit that referenced this issue May 10, 2019

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.