feat: Improve 'import' plugin settings (#143)

* Resolve type definition packages in `node_modules`
* Include `d.ts` extension

Author: kripod

index.js

@@ -2,14 +2,12 @@
 module.exports = {
   extends: ['eslint-config-airbnb', './lib/shared'].map(require.resolve),
   settings: {
-    // Append 'ts' and 'tsx' extensions to Airbnb 'import/resolver' setting
+    // Append 'ts' extensions to Airbnb 'import/resolver' setting
     'import/resolver': {
       node: {
-        extensions: ['.js', '.ts', '.jsx', '.tsx', '.json'],
+        extensions: ['.js', '.jsx', '.json', '.ts', '.tsx', '.d.ts'],
       },
     },
-    // Append 'ts' and 'tsx' extensions to Airbnb 'import/extensions' setting
-    'import/extensions': ['.js', '.ts', '.mjs', '.jsx', '.tsx'],
   },
   rules: {
     // Append 'tsx' to Airbnb 'react/jsx-filename-extension' rule

lib/shared.js

@@ -16,11 +16,13 @@ module.exports = {
     // Append 'ts' extensions to Airbnb 'import/resolver' setting
     'import/resolver': {
       node: {
-        extensions: ['.mjs', '.js', '.ts', '.json'],
+        extensions: ['.mjs', '.js', '.json', '.ts', '.d.ts'],
       },
     },
     // Append 'ts' extensions to Airbnb 'import/extensions' setting
-    'import/extensions': ['.js', '.ts', '.mjs'],
+    'import/extensions': ['.js', '.mjs', '.jsx', '.ts', '.tsx', '.d.ts'],
+    // Resolve type definition packages
+    'import/external-module-folders': ['node_modules', 'node_modules/@types'],
   },
   rules: {
     // Replace Airbnb 'brace-style' rule with '@typescript-eslint' version