chore: bazelified python services are tested for missing modules

Signed-off-by: Krisztián Varga <krisztian.varga@tngtech.com>

bazel/scripts/test_bazel_python_import.sh

@@ -0,0 +1,93 @@
+#!/usr/bin/env bash
+
+################################################################################
+# Copyright 2022 The Magma Authors.
+
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+################################################################################
+
+set -euo pipefail
+
+###############################################################################
+# FUNCTION DECLARATIONS
+###############################################################################
+
+help() {
+    echo "Tests all python services for missing imports or the ones found in"
+    echo "the specified directory (recursively), or one single service if a"
+    echo "service name is provided."
+    echo "Usage:"
+    echo "   $(basename "$0")  # test all python services in the magma repository"
+    echo "   $(basename "$0") path_to_services_directory/"
+    echo "   $(basename "$0") path_to_services_directory:service_name"
+    exit 1
+}
+
+collect_services() {
+    if [[ "${SERVICE_PATH}" == *":"* ]];
+    then
+        echo "Single service specified:"
+        SERVICES=( "${SERVICE_PATH}" )
+    else
+        echo "Multiple services specified:"
+        mapfile -t SERVICES < <(bazel query "attr(main, main.py, kind(py_binary, //${SERVICE_PATH}...))")
+    fi
+    if [[ "${#SERVICES[@]}" -eq 0 ]];
+    then
+        echo "ERROR: No services found."
+        help
+        exit 1
+    fi
+    for SERVICE in "${SERVICES[@]}"
+    do
+        echo "${SERVICE}"
+    done
+}
+
+###############################################################################
+# SCRIPT SECTION
+###############################################################################
+
+SERVICE_PATH="${1:-}"
+
+echo "Collecting services"
+declare -a SERVICES
+LOGGING_FILE="/tmp/test_import_logging.log"
+NUM_SUCCESS=0
+
+collect_services
+
+for SERVICE in "${SERVICES[@]}"
+do
+    echo "Building service: ${SERVICE}"
+    bazel build "${SERVICE}"
+    echo "Testing service: ${SERVICE}"
+    if timeout --preserve-status 5 bazel run "${SERVICE}" 2>&1  | tee "${LOGGING_FILE}";
+    then
+        echo "Service successfully started."
+        NUM_SUCCESS=$((NUM_SUCCESS + 1))
+    else
+        echo "Checking if ModuleNotFoundError is present in logs."
+        RESULT=$(grep -m 1 "ModuleNotFoundError" "${LOGGING_FILE}" || [[ $? == 1 ]])
+        if [[ "${RESULT}" != "" ]];
+        then
+            echo "ModuleNotFoundError found in logs from ${SERVICE}:"
+            echo "${RESULT}"
+        else
+            echo "ModuleNotFoundError not found in logs from ${SERVICE}:"
+            NUM_SUCCESS=$((NUM_SUCCESS + 1))
+        fi
+    fi
+    echo -e "\n################################################################################\n"
+done
+
+echo "$NUM_SUCCESS/${#SERVICES[@]} succeeded."
+
+[[ "${NUM_SUCCESS}" == "${#SERVICES[@]}" ]]