Merge pull request #29 from GoProperly/update_no_extraneous_deps_config

add custom devDep pattern for import/no-extraneous-dependencies

index.js

@@ -20,5 +20,28 @@ module.exports = {
 
     // Allow underscore dangles for private members (e.g. this._foo)
     'no-underscore-dangle': ['error', { allowAfterThis: true }],
+
+    'import/no-extraneous-dependencies': [
+      'error',
+      {
+        devDependencies: [
+          // Custom patterns for "dev only" files in our code
+          '.storybook/**', // Storybook
+          'stories/**', // Storybook
+          '**/setupTests.js', // CRA Jest setup
+          '**/*.config.js', // Config files
+          // The rest of these are copied from eslint-config-airbnb-base:
+          // https://github.com/airbnb/javascript/blob/0375265cbd43635f8062615995a6a86f22fd0fc2/packages/eslint-config-airbnb-base/rules/imports.js#L71
+          'test/**',
+          'tests/**',
+          '**/__tests__/**',
+          '**/__mocks__/**',
+          'test.{js,jsx}',
+          'test-*.{js,jsx}',
+          '**/*{.,_}{test,spec}.{js,jsx}',
+        ],
+        optionalDependencies: false,
+      },
+    ],
   },
 };