refactor bash script.

Signed-off-by: alyssacgoins <[email protected]>

Author: alyssacgoins

.github/resources/scripts/get_components_for_validation.sh

@@ -30,13 +30,17 @@ echo "Using HEAD_COMMIT: ${HEAD_COMMIT}"
 # If diff is detected within the input script directory, validate all components.
 SCRIPT_DIFF=$(git diff --name-only --diff-filter=ACM "${COMMIT_RANGE}" -- "${SCRIPT_DIR}" || true)
 if [[ -n "${SCRIPT_DIFF}" ]]; then
-  echo "Changes detected in critical script directory: ${SCRIPT_DIR}"
   ALL_COMPONENT_FILES=$(find components -mindepth 2 -maxdepth 2 -type d | \
     sort -u | \
     tr '\n' ',' | \
     sed 's/,$//')
 
-  echo "Changes detected in ${VALIDATION_SCRIPT_DIR}. All existing components will be validated: ${ALL_COMPONENT_FILES}"
+  if [[  -n "${ALL_COMPONENT_FILES}"  ]]; then
+    echo "Changes detected in ${VALIDATION_SCRIPT_DIR}. There are no existing components to validate."
+  else
+    echo "Changes detected in ${VALIDATION_SCRIPT_DIR}. All existing components will be validated: ${ALL_COMPONENT_FILES}"
+  fi
+
   if [[ -n "${GITHUB_OUTPUT:-}" ]]; then
     echo "new_components_list=${ALL_COMPONENT_FILES}" >> "${GITHUB_OUTPUT}"
   else