add eslint-plugin-import

Fork because of a required fix that hasn't been shipped yet.

.yarn/patches/eslint-plugin-import-https-251cd9e890.patch

@@ -0,0 +1,12 @@
+diff --git a/package.json b/package.json
+index 85c863485b0c37df556132beddf7f6959e6b5961..c1bdec0cb02cbabda11a8917d37d3792134c81aa 100644
+--- a/package.json
++++ b/package.json
+@@ -21,6 +21,7 @@
+   "scripts": {
+     "prebuild": "rimraf lib",
+     "build": "babel --quiet --out-dir lib src",
++    "prepack": "yarn run build",
+     "postbuild": "npm run copy-metafiles",
+     "copy-metafiles": "node --require babel-register ./scripts/copyMetafiles",
+     "watch": "npm run tests-only -- -- --watch",

eslint-plugin-react.d.ts

@@ -25,3 +25,13 @@ declare module 'eslint-plugin-react-hooks' {
   }
   export default plugin
 }
+
+// Non-exhaustive.
+declare module 'eslint-plugin-import' {
+  import type { Linter } from 'eslint'
+
+  export const flatConfigs: {
+    typescript: Linter.Config
+    recommended: Linter.Config
+  }
+}

lib/basic.mjs

@@ -1,6 +1,54 @@
 // @ts-check
 
+import { fileURLToPath } from 'node:url'
+import path from 'node:path'
+
+import { fixupPluginRules } from '@eslint/compat'
+import { FlatCompat } from '@eslint/eslintrc'
 import js from '@eslint/js'
+import eslintPluginImport from 'eslint-plugin-import'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+})
+
+// https://github.com/import-js/eslint-plugin-import/issues/2948#issuecomment-2148832701
+/**
+  * @param {string} name
+  * @param {string} alias
+  * @returns {import('eslint').ESLint.Plugin}
+  */
+function legacyPlugin(name, alias = name) {
+  const plugin = compat.plugins(name)[0]?.plugins?.[alias]
+  if (!plugin) throw new Error(`Unable to resolve plugin ${name} and/or alias ${alias}`)
+  return fixupPluginRules(plugin)
+}
+
+/** @type {import('eslint').Linter.Config[]} */
+export const importPlugin = [
+  { ...eslintPluginImport.flatConfigs.recommended, plugins: {} },
+  // TypeScript one doesn't have a name, but recommended does.
+  { ...eslintPluginImport.flatConfigs.typescript, name: 'import/typescript', plugins: {} },
+
+  {
+    name: '@textshq/eslint-config.basic.import',
+    plugins: { import: legacyPlugin('eslint-plugin-import', 'import') },
+    settings: {
+      'import/parsers': {
+        '@typescript-eslint/parser': ['.ts', '.tsx'],
+      },
+      'import/resolver': {
+        typescript: {
+          alwaysTryTypes: true,
+        },
+        node: true,
+      },
+    },
+  },
+]
 
 /** @satisfies {import('@typescript-eslint/utils/ts-eslint').FlatConfig.ConfigFile} */
 const config = [
@@ -35,6 +83,8 @@ const config = [
       'prefer-template': 'off',
     },
   },
+
+  ...importPlugin,
 ]
 
 export default config

package.json

@@ -13,6 +13,8 @@
     "@stylistic/eslint-plugin": "^2.8.0",
     "@typescript-eslint/eslint-plugin": "^8.5.0",
     "@typescript-eslint/parser": "^8.5.0",
+    "eslint-import-resolver-typescript": "^3.6.3",
+    "eslint-plugin-import": "TextsHQ/eslint-plugin-import#commit=b271f426d6834ce802df68c1eea33b8cae895b26",
     "eslint-plugin-jsx-a11y": "^6.10.0",
     "eslint-plugin-react": "^7.36.1",
     "eslint-plugin-react-hooks": "5.1.0-rc-206df66e-20240912",
@@ -24,7 +26,9 @@
   },
   "devDependencies": {
     "@types/eslint-plugin-jsx-a11y": "^6",
+    "@types/eslint__eslintrc": "^2.1.2",
     "@types/eslint__js": "^8.42.3",
+    "@types/node": "^18",
     "eslint": "^9.10.0",
     "typescript": "<5.6.0"
   },