Post UI screenshots in PR comments (#32887)

* add PR comment with screenshots on ui changes

* fix pr comment if statements

* use default shallow checkout

* use commaai's ci-artifacts

* use my ci-artifacts

* use tj-actions/changed-files

* clean up

* use comma repos

* make ci-artifacts branch openpilot/pr-#

* remove redundent path

.github/workflows/selfdrive_tests.yaml

@@ -328,3 +328,53 @@ jobs:
         with:
           name: report-${{ inputs.run_number }}
           path: selfdrive/ui/tests/test_ui/report_${{ inputs.run_number }}
+      - name: Get changes to selfdrive/ui
+        if: ${{ github.event_name == 'pull_request' }}
+        id: changed-files
+        uses: tj-actions/changed-files@v44
+        with:
+         files: |
+            selfdrive/ui/**
+      - name: Checkout ci-artifacts
+        if: ${{ github.event_name == 'pull_request' && steps.changed-files.outputs.any_changed == 'true' }}
+        uses: actions/checkout@v4
+        with:
+          repository: commaai/ci-artifacts
+          ssh-key: ${{ secrets.CI_ARTIFACTS_DEPLOY_KEY }}
+          path: ${{ github.workspace }}/ci-artifacts
+          ref: master
+      - name: Push Screenshots
+        if: ${{ github.event_name == 'pull_request' && steps.changed-files.outputs.any_changed == 'true' }}
+        working-directory: ${{ github.workspace }}/ci-artifacts
+        run: |
+          git checkout -b openpilot/pr-${{ github.event.pull_request.number }}
+          git config user.name "GitHub Actions Bot"
+          git config user.email "<>"
+          sudo mv ${{ github.workspace }}/selfdrive/ui/tests/test_ui/report/screenshots/* .
+          git add .
+          git commit -m "screenshots for PR #${{ github.event.pull_request.number }}"
+          git push origin openpilot/pr-${{ github.event.pull_request.number }} --force
+      - name: Comment Screenshots on PR
+        if: ${{ github.event_name == 'pull_request' && steps.changed-files.outputs.any_changed == 'true' }}
+        uses: thollander/actions-comment-pull-request@v2
+        with:
+          message: |
+            <!-- _(run_id_screenshots **${{ github.run_id }}**)_ -->
+            ## UI Screenshots
+            <table>
+              <tr>
+                <td><img src="https://raw.githubusercontent.com/commaai/ci-artifacts/openpilot/pr-${{ github.event.pull_request.number }}/homescreen.png"></td>
+                <td><img src="https://raw.githubusercontent.com/commaai/ci-artifacts/openpilot/pr-${{ github.event.pull_request.number }}/onroad.png"></td>
+              </tr>
+              <tr>
+                <td><img src="https://raw.githubusercontent.com/commaai/ci-artifacts/openpilot/pr-${{ github.event.pull_request.number }}/onroad_map.png"></td>
+                <td><img src="https://raw.githubusercontent.com/commaai/ci-artifacts/openpilot/pr-${{ github.event.pull_request.number }}/onroad_sidebar.png"></td>
+              </tr>
+              <tr>
+                <td><img src="https://raw.githubusercontent.com/commaai/ci-artifacts/openpilot/pr-${{ github.event.pull_request.number }}/settings_network.png"></td>
+                <td><img src="https://raw.githubusercontent.com/commaai/ci-artifacts/openpilot/pr-${{ github.event.pull_request.number }}/settings_device.png"></td>
+              </tr>
+            </table>
+          comment_tag: run_id_screenshots
+          pr_number: ${{ github.event.pull_request.number }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}