Clean up test scripts and enhance git clone (#1417)

1. Clean up test code in scripts.
2. Simplify git clone code.
3. Replace git clone branch in Dockerfile.

Signed-off-by: chensuyue <suyue.chen@intel.com>

DocSum/tests/test_compose_on_gaudi.sh

@@ -38,8 +38,20 @@ LOG_PATH="$WORKPATH/tests"
 ROOT_FOLDER=$(dirname "$(readlink -f "$0")")
 
 function build_docker_images() {
+    opea_branch=${opea_branch:-"main"}
+    # If the opea_branch isn't main, replace the git clone branch in Dockerfile.
+    if [[ "${opea_branch}" != "main" ]]; then
+        cd $WORKPATH
+        OLD_STRING="RUN git clone --depth 1 https://github.com/opea-project/GenAIComps.git"
+        NEW_STRING="RUN git clone --depth 1 --branch ${opea_branch} https://github.com/opea-project/GenAIComps.git"
+        find . -type f -name "Dockerfile*" | while read -r file; do
+            echo "Processing file: $file"
+            sed -i "s|$OLD_STRING|$NEW_STRING|g" "$file"
+        done
+    fi
+
     cd $WORKPATH/docker_image_build
-    git clone https://github.com/opea-project/GenAIComps.git && cd GenAIComps && git checkout "${opea_branch:-"main"}" && cd ../
+    git clone --depth 1 --branch ${opea_branch} https://github.com/opea-project/GenAIComps.git
 
     echo "Build all the images with --no-cache, check docker_image_build.log for details..."
     service_list="docsum docsum-gradio-ui whisper llm-docsum"
@@ -51,10 +63,8 @@ function build_docker_images() {
 
 function start_services() {
     cd $WORKPATH/docker_compose/intel/hpu/gaudi
-
-    sed -i "s|container_name: docsum-gaudi-backend-server|container_name: docsum-gaudi-backend-server\n    volumes:\n      - \"${WORKPATH}\/docker_image_build\/GenAIComps:\/home\/user\/GenAIComps\"|g" compose.yaml
     docker compose -f compose.yaml up -d > ${LOG_PATH}/start_services_with_compose.log
-    sleep 3m
+    sleep 1m
 }
 
 get_base64_str() {