Add GH action: auto review PRs for lint/format problems

Issue #2096

.github/workflows/lint-and-format.yml

@@ -0,0 +1,45 @@
+name: Lint and Format Code Base
+
+on: 
+  pull_request:
+    paths:
+      - 'src/**/*.js'
+
+jobs:
+  lint_and_format:
+    name: runner / eslint and prettier
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+    - name: Check out code
+      uses: actions/checkout@v3
+      with:
+        fetch-depth: 0  # Important to fetch all history for diff
+
+    - name: Set up Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: '18'
+
+    - name: Install dependencies
+      run: npm install
+
+    - name: Run ESLint with reviewdog
+      uses: reviewdog/action-eslint@v1
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        reporter: github-pr-review
+        eslint_flags: 'src'
+        filter_mode: 'diff_context'
+
+    - name: Run Prettier with reviewdog
+      uses: EPMatt/reviewdog-action-prettier@v1
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        reporter: github-pr-review
+        prettier_flags: '--check src/**/*.js'
+        filter_mode: 'diff_context'
+