Add linter

Author: Joel Denning

.eslintrc

@@ -0,0 +1,4 @@
+{
+  "extends": "important-stuff",
+  "parser": "@babel/eslint-parser"
+}

.github/test.yml

@@ -0,0 +1,22 @@
+name: Build and Test
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: "17"
+      - uses: pnpm/action-setup@v1.2.1
+        with:
+          version: 6.9.1
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm test
+      - run: pnpm run check-format
+      - run: pnpm run lint

.prettierignore

@@ -1,4 +1,5 @@
 .prettierignore
 .gitignore
 LICENSE
-yarn.lock
+yarn.lock
+pnpm-lock.yaml

babel.config.json

@@ -0,0 +1,4 @@
+{
+  "presets": [],
+  "plugins": []
+}

package.json

@@ -6,6 +6,7 @@
   "type": "module",
   "scripts": {
     "format": "prettier --write .",
+    "lint": "prettier --check . && eslint lib",
     "test": "node --experimental-loader ./lib/node-loader-babel.js ./test/run-tests.js",
     "prepare": "husky install"
   },
@@ -21,7 +22,11 @@
   "homepage": "https://github.com/node-loaders/node-loader-babel#readme",
   "devDependencies": {
     "@babel/core": "^7.11.6",
+    "@babel/eslint-parser": "^7.14.7",
     "@babel/plugin-transform-react-jsx": "^7.10.4",
+    "eslint": "^7.30.0",
+    "eslint-config-important-stuff": "^1.1.0",
+    "eslint-config-node-important-stuff": "^1.1.0",
     "husky": "^7.0.0",
     "mocha": "^9.0.2",
     "prettier": "^2.1.2",