adding a lambda_launcher script

Author: brifordwylie

pyproject.toml

@@ -92,6 +92,7 @@ workbench_config = "workbench.scripts.show_config:main"
 glue_launcher = "workbench.scripts.glue_launcher:main"
 ml_pipeline_batch = "workbench.scripts.ml_pipeline_batch:main"
 ml_pipeline_sqs = "workbench.scripts.ml_pipeline_sqs:main"
+lambda_launcher = "workbench.scripts.lambda_launcher:main"
 
 [tool.pytest.ini_options]
 addopts = "-v --cov-report term-missing"

src/workbench/scripts/lambda_launcher.py

@@ -0,0 +1,39 @@
+import sys
+import os
+import importlib.util
+
+
+def main():
+    if len(sys.argv) != 2:
+        print("Usage: lambda_launcher <handler_module_name>")
+        sys.exit(1)
+
+    handler_file = sys.argv[1]
+
+    # Add .py if not present
+    if not handler_file.endswith(".py"):
+        handler_file += ".py"
+
+    # Check if file exists
+    if not os.path.exists(handler_file):
+        print(f"Error: File '{handler_file}' not found")
+        sys.exit(1)
+
+    # Load the module dynamically
+    spec = importlib.util.spec_from_file_location("lambda_module", handler_file)
+    lambda_module = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(lambda_module)
+
+    # Call the lambda_handler
+    print(f"Invoking lambda_handler from {handler_file}...")
+    print("-" * 50)
+
+    result = lambda_module.lambda_handler({}, {})
+
+    print("-" * 50)
+    print("Result:")
+    print(result)
+
+
+if __name__ == "__main__":
+    main()