chore(eslint): run ESLint through yarn workspaces

This way we can use @babel/eslint-parser and it will the the .babelrc config file from the workspace.

Author: Kocal

package.json

@@ -4,26 +4,33 @@
     "scripts": {
         "build": "yarn workspaces run build",
         "test": "yarn workspaces run test",
-        "lint": "eslint src/*/Resources/assets/{src,test}/*.js --fix",
+        "lint": "yarn workspaces run lint --fix",
         "format": "prettier src/*/Resources/assets/{src,test}/*.js {,src/*/}*.{json,md} --write",
         "check-lint": "yarn lint --no-fix",
         "check-format": "yarn format --no-write --check"
     },
     "devDependencies": {
-        "eslint": "^7.15.0",
         "@babel/eslint-parser": "^7.12.1",
+        "eslint": "^7.15.0",
         "eslint-config-prettier": "^6.15.0",
+        "eslint-plugin-jest": "^24.1.3",
         "prettier": "^2.2.1"
     },
     "eslintConfig": {
         "root": true,
-        "parserOptions": {
-            "sourceType": "module",
-            "ecmaVersion": 11
-        },
+        "parser": "@babel/eslint-parser",
         "extends": [
             "eslint:recommended",
             "prettier"
+        ],
+        "env": {
+            "browser": true
+        },
+        "overrides": [
+            {
+                "files": ["src/*/Resources/assets/test/*.js"],
+                "extends": ["plugin:jest/recommended"]
+            }
         ]
     },
     "prettier": {

src/Chartjs/Resources/assets/package.json

@@ -14,7 +14,8 @@
     },
     "scripts": {
         "build": "babel src -d dist",
-        "test": "babel src -d dist && jest"
+        "test": "babel src -d dist && jest",
+        "lint": "eslint src test"
     },
     "dependencies": {
         "chart.js": "^2.9.4"

src/Cropperjs/Resources/assets/package.json

@@ -18,7 +18,8 @@
     },
     "scripts": {
         "build": "babel src -d dist",
-        "test": "babel src -d dist && jest"
+        "test": "babel src -d dist && jest",
+        "lint": "eslint src test"
     },
     "dependencies": {
         "cropperjs": "^1.5.9"

src/Dropzone/Resources/assets/package.json

@@ -17,7 +17,8 @@
     },
     "scripts": {
         "build": "babel src -d dist",
-        "test": "babel src -d dist && jest"
+        "test": "babel src -d dist && jest",
+        "lint": "eslint src test"
     },
     "peerDependencies": {
         "stimulus": "^2.0.0"

src/LazyImage/Resources/assets/package.json

@@ -14,7 +14,8 @@
     },
     "scripts": {
         "build": "babel src -d dist",
-        "test": "babel src -d dist && jest"
+        "test": "babel src -d dist && jest",
+        "lint": "eslint src test"
     },
     "peerDependencies": {
         "stimulus": "^2.0.0"

src/Swup/Resources/assets/package.json

@@ -14,7 +14,8 @@
     },
     "scripts": {
         "build": "babel src -d dist",
-        "test": "babel src -d dist && jest"
+        "test": "babel src -d dist && jest",
+        "lint": "eslint src test"
     },
     "dependencies": {
         "@swup/fade-theme": "^1.0",