add eslint

Author: Jon M

.eslintignore

@@ -0,0 +1,20 @@
+# Dependencies
+node_modules/
+vendor/
+web/core/
+web/modules/contrib/
+web/themes/contrib/
+web/profiles/contrib/
+
+# Build outputs
+web/sites/**/files/
+web/sites/**/libraries/
+**/js_test_files/
+
+# E2E tests
+e2e/
+
+# Other
+*.min.js
+*.bundle.js
+

.eslintrc.json

@@ -0,0 +1,22 @@
+{
+  "extends": [
+    "./web/core/.eslintrc.json"
+  ],
+  "root": true,
+  "env": {
+    "browser": true,
+    "es6": true,
+    "node": true
+  },
+  "parserOptions": {
+    "ecmaVersion": 2020
+  },
+  "globals": {
+    "Drupal": true,
+    "drupalSettings": true,
+    "drupalTranslations": true,
+    "jQuery": true,
+    "umami": true
+  }
+}
+

.gitignore

@@ -54,4 +54,9 @@
 Network Trash Folder
 Temporary Items
 .apdisk
-tmp
+tmp
+
+# Node.js dependencies
+node_modules/
+package-lock.json
+yarn.lock

package.json

@@ -0,0 +1,23 @@
+{
+  "name": "interledger.org",
+  "version": "1.0.0",
+  "description": "Interledger.org Drupal website",
+  "private": true,
+  "scripts": {
+    "lint": "eslint .",
+    "lint:fix": "eslint . --fix",
+    "lint:js": "eslint web/themes/**/*.js web/modules/custom/**/*.js",
+    "lint:js:fix": "eslint web/themes/**/*.js web/modules/custom/**/*.js --fix"
+  },
+  "devDependencies": {
+    "eslint": "^8.57.0",
+    "eslint-config-airbnb-base": "^15.0.0",
+    "eslint-plugin-prettier": "^5.1.3",
+    "eslint-plugin-yml": "^1.10.0",
+    "prettier": "^3.2.5"
+  },
+  "engines": {
+    "node": ">=18.0"
+  }
+}
+