fix(eslint): flat config support

eslint-plugin/README.md

@@ -36,19 +36,54 @@ yarn add -D eslint @green-code-initiative/ecocode-eslint-plugin
 npm install -D eslint @green-code-initiative/ecocode-eslint-plugin
 ```
 
-### Enable whole plugin
+### Enable plugin with recommended configuration
 
-Add `@ecocode` recommended configuration to `extends` section of your `.eslintrc`:
+#### ESLint Flat Configuration (`eslint.config.js`)
 
-```jsonc
+Add `@ecocode` **"flat/recommended"** configuration to  your `eslint.config.js`:
+
+```js
+import ecocode from '@ecocode/eslint-plugin'
+
+export default [
+  /* other eslint configurations */
+  ecocode.configs['flat/recommended'],
+]
+```
+
+#### ESLint deprecated legacy configuration (`.eslintrc`)
+
+For legacy ESLint versions using the deprecated `.eslintrc` file, add the `@ecocode` **"recommended"** configuration to the `extends` array :
+
+```json
 {
   "extends": ["plugin:@ecocode/recommended"]
 }
 ```
 
-### Enable only some rules
+### Enable specific rules
+
+#### ESLint Flat configuration (`eslint.config.js`)
+
+Add the `ecocode` plugin configuration to your `eslint.config.js` and select the rules to activate:
+
+```js
+import ecocode from '@ecocode/eslint-plugin'
+
+export default [
+  /* other eslint configurations */
+  {
+    plugins: { "@ecocode": ecocode },
+    rules: {
+      "@ecocode/no-multiple-access-dom-element": "error"
+    }
+  }
+]
+```
+
+#### ESLint deprecated legacy configuration (`.eslintrc`)
 
-Add `@ecocode` to the `plugins` section of your `.eslintrc`, followed by rules configuration:
+If your project uses a legacy ESLint version, it may use as well the now deprecated `.eslintrc` file. In such case, Add `@ecocode` to the `plugins` array, potentially followed by rules specific configurations:
 
 ```jsonc
 {

eslint-plugin/docs/rules/avoid-brightness-override.md

@@ -1,6 +1,6 @@
 # Should avoid to override brightness (`@ecocode/avoid-brightness-override`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/docs/rules/avoid-css-animations.md

@@ -1,6 +1,6 @@
 # Avoid usage of CSS animations (`@ecocode/avoid-css-animations`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/docs/rules/avoid-high-accuracy-geolocation.md

@@ -1,6 +1,6 @@
 # Avoid using high accuracy geolocation in web applications (`@ecocode/avoid-high-accuracy-geolocation`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/docs/rules/limit-db-query-results.md

@@ -1,6 +1,6 @@
 # Should limit the number of returns for a SQL query (`@ecocode/limit-db-query-results`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/docs/rules/no-empty-image-src-attribute.md

@@ -1,6 +1,6 @@
 # Disallow usage of image with empty source attribute (`@ecocode/no-empty-image-src-attribute`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/docs/rules/no-import-all-from-library.md

@@ -1,6 +1,6 @@
 # Should not import all from library (`@ecocode/no-import-all-from-library`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/docs/rules/no-multiple-access-dom-element.md

@@ -1,6 +1,6 @@
 # Disallow multiple access of same DOM element (`@ecocode/no-multiple-access-dom-element`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/docs/rules/no-multiple-style-changes.md

@@ -1,6 +1,6 @@
 # Disallow multiple style changes at once (`@ecocode/no-multiple-style-changes`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/docs/rules/no-torch.md

@@ -1,6 +1,6 @@
 # Should not programmatically enable torch mode (`@ecocode/no-torch`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 ## Why is this an issue?

eslint-plugin/docs/rules/prefer-collections-with-pagination.md

@@ -1,6 +1,6 @@
 # Prefer API collections with pagination (`@ecocode/prefer-collections-with-pagination`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/docs/rules/prefer-shorthand-css-notations.md

@@ -1,6 +1,6 @@
 # Encourage usage of shorthand CSS notations (`@ecocode/prefer-shorthand-css-notations`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/docs/rules/provide-print-css.md

@@ -1,6 +1,6 @@
 # Enforce providing a print stylesheet (`@ecocode/provide-print-css`)
 
-⚠️ This rule _warns_ in the ✅ `recommended` config.
+⚠️ This rule _warns_ in the following configs: `flat/recommended`, ✅ `recommended`.
 
 <!-- end auto-generated rule header -->
 

eslint-plugin/lib/standalone.js

@@ -22,21 +22,35 @@
  */
 "use strict";
 
-const rules = require("./rule-list");
+const rulesList = require("./rule-list");
 
-const ruleModules = rules.reduce((map, rule) => {
-  map[rule.ruleName] = rule.ruleModule;
-  return map;
-}, {});
+const allRules = {};
+const recommendedRules = {};
 
-const ruleConfigs = rules.reduce((map, rule) => {
-  const recommended = rule.ruleModule.meta.docs.recommended;
-  map[`@ecocode/${rule.ruleName}`] =
-    recommended === false ? "off" : recommended;
-  return map;
-}, {});
+for (let { ruleName, ruleModule } of rulesList) {
+  allRules[ruleName] = ruleModule;
+  const { recommended } = ruleModule.meta.docs;
+  const ruleConfiguration = recommended === false ? "off" : recommended;
+  recommendedRules[`@ecocode/${ruleName}`] = ruleConfiguration;
+}
 
-module.exports = {
-  rules: ruleModules,
-  configs: { recommended: { plugins: ["@ecocode"], rules: ruleConfigs } },
+const plugin = {
+  meta: {
+    name: "@ecocode/eslint-plugin",
+    version: "1.6.0",
+  },
+  rules: allRules,
 };
+
+plugin.configs = {
+  recommended: {
+    plugins: ["@ecocode"],
+    rules: recommendedRules,
+  },
+  ["flat/recommended"]: {
+    plugins: { "@ecocode": plugin },
+    rules: recommendedRules,
+  },
+};
+
+module.exports = plugin;