[VL] Trigger GPU docker build if script changes

.github/workflows/nightly_sync.yml

@@ -16,11 +16,44 @@
 name: Upload docs to apache nightly
 
 on:
-  push:
+  pull_request:
     paths:
       - 'docs/**'
       - '.github/workflows/nightly_sync.yml'
 jobs:
+
+  script-change-test:
+    name: check Velox script change and build docker image if needed
+    runs-on: ubuntu-latest
+    outputs:
+      scripts_changed: ${{ steps.check_scripts.outputs.scripts_changed }}
+    steps:
+      - name: Check if scripts changed
+        id: check_scripts
+        run: |
+          git clone --depth 10 --branch main https://github.com/facebookincubator/velox.git velox
+          cd velox
+          if [[ $(git diff --name-only ${{ github.event.before }} ${{ github.event.after }} | grep -E '(^|/)scripts/.*') ]]; then
+            echo "Scripts changed, run gpu-docker-tests"
+            echo "::set-output name=scripts_changed::true"
+          else
+            echo "No script changes, skip gpu-docker-tests"
+            echo "::set-output name=scripts_changed::false"
+            exit 0
+          fi
+      - name: Set up Git
+        if: steps.check_scripts.outputs.scripts_changed == 'true'
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+      - name: Check CI Status
+        if: steps.check_scripts.outputs.scripts_changed == 'true'
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh workflow run ./.github/workflows/docker_image.yml -f job_to_run=build-centos-9-jdk8-cudf
+
   upload_to_nightlies:
     if: ${{ startsWith(github.repository, 'apache/') }}
     runs-on: ubuntu-latest