CI: setup auto PR review

.github/labeler.yaml

@@ -0,0 +1,7 @@
+libcan:
+  - changed-files:
+    - any-glob-to-all-files: 'can/'
+
+dbc:
+  - changed-files:
+    - any-glob-to-all-files: '*.dbc'

.github/workflows/auto_pr_review.yaml

@@ -0,0 +1,53 @@
+name: "PR review"
+on:
+  pull_request_target:
+    types: [opened, reopened, synchronize, edited, edited]
+
+jobs:
+  review:
+    name: review
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: false
+
+    # Label PRs
+    - uses: actions/[email protected]
+      with:
+        dot: true
+        configuration-path: .github/labeler.yaml
+
+    # Check PR target branch
+    - name: check branch
+      uses: Vankka/pr-target-branch-action@def32ec9d93514138d6ac0132ee62e120a72aed5
+      if: github.repository == 'commaai/opendbc'
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        target: /^(?!master$).*/
+        exclude: /commaai:.*/
+        change-to: ${{ github.base_ref }}
+        already-exists-action: close_this
+        already-exists-comment: "Your PR should be made against the `master` branch"
+
+    # Welcome comment
+    - name: comment
+      uses: thollander/actions-comment-pull-request@fabd468d3a1a0b97feee5f6b9e499eab0dd903f6
+      if: github.event.pull_request.head.repo.full_name != 'commaai/opendbc'
+      with:
+        message: |
+            <!-- _(run_id **${{ github.run_id }}**)_ -->
+            Thanks for contributing to opendbc! In order for us to review your PR as quickly as possible, check the following:
+            * Convert your PR to a draft unless it's ready to review
+            * Read the [contributing docs](https://github.com/commaai/openpilot/blob/master/docs/CONTRIBUTING.md)
+            * Before marking as "ready for review", ensure:
+              * the goal is clearly stated in the description
+              * all the tests are passing
+              * the change is [something we merge](https://github.com/commaai/openpilot/blob/master/docs/CONTRIBUTING.md#what-gets-merged)
+              * include a route or your device' dongle ID if relevant
+        comment_tag: run_id
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}