From 0a1eaa3c40534b84a922f36f9cf09c9811f90e42 Mon Sep 17 00:00:00 2001
From: Anthony LC <anthony.le-courric@mail.numerique.gouv.fr>
Date: Fri, 8 Aug 2025 11:41:42 +0200
Subject: [PATCH] =?UTF-8?q?=F0=9F=9A=A8(i18n)=20upgrade=20eslint=20to=20v9?=
 =?UTF-8?q?=20with=20i18n=20package?=
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We upgraded ESLint to version 9 in the i18n package,
which includes several improvements and fixes.
This change also involves updating the ESLint
configuration files to the new format and ensuring
compatibility with the latest ESLint features.
---
 src/frontend/packages/i18n/.eslintrc.js      | 11 -----------
 src/frontend/packages/i18n/eslint.config.mjs | 20 ++++++++++++++++++++
 src/frontend/packages/i18n/package.json      |  2 +-
 src/frontend/packages/i18n/tsconfig.json     |  2 ++
 4 files changed, 23 insertions(+), 12 deletions(-)
 delete mode 100644 src/frontend/packages/i18n/.eslintrc.js
 create mode 100644 src/frontend/packages/i18n/eslint.config.mjs

diff --git a/src/frontend/packages/i18n/.eslintrc.js b/src/frontend/packages/i18n/.eslintrc.js
deleted file mode 100644
index 475c786b..00000000
--- a/src/frontend/packages/i18n/.eslintrc.js
+++ /dev/null
@@ -1,11 +0,0 @@
-module.exports = {
-  root: true,
-  extends: ['impress/jest', 'plugin:import/recommended'],
-  parserOptions: {
-    sourceType: 'module',
-    ecmaVersion: 'latest',
-    tsconfigRootDir: __dirname,
-    project: ['./tsconfig.json'],
-  },
-  ignorePatterns: ['node_modules'],
-};
diff --git a/src/frontend/packages/i18n/eslint.config.mjs b/src/frontend/packages/i18n/eslint.config.mjs
new file mode 100644
index 00000000..620d4857
--- /dev/null
+++ b/src/frontend/packages/i18n/eslint.config.mjs
@@ -0,0 +1,20 @@
+import { defineConfig } from '@eslint/config-helpers';
+import docsPlugin from 'eslint-plugin-docs';
+
+const eslintConfig = defineConfig([
+  {
+    files: ['**/*.ts', '**/*.mjs', '**/*.js'],
+    plugins: {
+      docs: docsPlugin,
+    },
+    extends: ['docs/next', 'docs/test'],
+    languageOptions: {
+      parserOptions: {
+        tsconfigRootDir: import.meta.dirname,
+        project: ['./tsconfig.json'],
+      },
+    },
+  },
+]);
+
+export default eslintConfig;
diff --git a/src/frontend/packages/i18n/package.json b/src/frontend/packages/i18n/package.json
index 63f33c24..6333949c 100644
--- a/src/frontend/packages/i18n/package.json
+++ b/src/frontend/packages/i18n/package.json
@@ -8,7 +8,7 @@
     "format-deploy": "yarn format-deploy:impress",
     "format-deploy:impress": "node ./format-deploy.mjs --app=impress --output=../../apps/impress/src/i18n/translations.json",
     "format-rebuild-fr:impress": "node ./rebuild-translations.mjs --language=fr --app=impress --output=../../apps/impress/src/i18n/translations.json",
-    "lint": "eslint --ext .js,.ts,.mjs .",
+    "lint": "eslint",
     "test": "jest"
   },
   "dependencies": {
diff --git a/src/frontend/packages/i18n/tsconfig.json b/src/frontend/packages/i18n/tsconfig.json
index c4350f5a..2c5fee27 100644
--- a/src/frontend/packages/i18n/tsconfig.json
+++ b/src/frontend/packages/i18n/tsconfig.json
@@ -16,6 +16,8 @@
   },
   "include": [
     "**/*.ts",
+    "**/*.js",
+    "**/*.mjs"
   ],
   "exclude": ["node_modules"]
 }