Add checkout step.

Author: Xreki

.github/workflows/Validate-GPU.yml

@@ -26,14 +26,20 @@ jobs:
     runs-on:
       group: BD_BJ-V100
     steps:
+      - name: Clone GraphNet
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.base.ref }}
+          submodules: 'recursive'
+          fetch-depth: 100
+
       - name: Check docker image and run container
         env:
           work_dir: ${{ github.workspace }}
           CACHE_DIR: /home/data/cfs/.cache
         run: |
           container_name=${TASK}-${core_index}-$(date +%Y%m%d-%H%M%S)
           echo "container_name=${container_name}" >> ${{ github.env }}
-          ls ${{ github.workspace }}
           docker container ls -a --filter "name=GraphNet-CI-*-Validate-${core_index}*" --format "{{.ID}}" | xargs -r docker rm -f
           docker run -d -t --gpus all --name ${container_name} --shm-size=128g \
             -v "/home/data/cfs:/home/data/cfs" \
@@ -62,9 +68,6 @@ jobs:
           docker exec -t ${{ env.container_name }} /bin/bash -c '
           source ${{ github.workspace }}/../../../proxy
           git config --global --add safe.directory ${work_dir}
-          pwd
-          ls /graphnet
-          ls ${work_dir}
           bash ${work_dir}/tools/ci/check_validate.sh
           '