lint: eslintrc rules difficult to override

[samchungy]

Error: Error while loading rule '@typescript-eslint/no-unsafe-member-access':
You have used a rule which requires parserServices to be generated.
You must therefore provide a value for the "parserOptions.project" property for @typescript-eslint/parser.

Putting this here for visibility as I've seen it on a few repos now and have had a few questions.

It's currently fairly clunky to change a rule right now. The typical way would be to set a rule in .eslintrc file:

.eslintrc

rules: {
  '@typescript-eslint/no-unsafe-assignment': 'warn',
}

But with the latest update you need to declare it using overrides:

.eslintrc

const tsExtensions = ['ts', 'cts', 'mts', 'tsx'];
overrides: [
    {
      files: [`*.{${tsExtensions.join(',')}}`],
      rules: {
        '@typescript-eslint/no-unsafe-assignment': 'warn',
      },
    },
]

[72636c]

This may be improved by ESLint flat config:

#1157