new readme, using tomli and a config file to limit or set options for migration

Author: tcnichol

scripts/README.md

@@ -4,3 +4,5 @@
   or delete existing test data.
 * ``/keylcloak`` includes Keycloak configuration files and Clowder theme. Used when creating a new instance.
 * ``/metadata`` includes examples of metadata definitions. Used to populate database for new or testing instances.
+
+* ``/migration`` Migrate from clowder v2 to v2. It has its own readme file.

scripts/migration/README.md

@@ -0,0 +1,8 @@
+# Migration
+
+these scripts are used to migrate data from a clowder v1 to v2 instance
+
+## config.toml 
+
+This file can be used to limit what gets migrated by space or user. 
+

scripts/migration/migrate.py

@@ -4,6 +4,12 @@
 import requests
 from dotenv import dotenv_values
 
+try:
+    import tomllib  # Python 3.11+
+except ImportError:
+    import tomli as tomllib
+
+
 from scripts.migration.migrate_metadata_definitions import (
     check_metadata_definition_exists,
     get_clowder_v1_metadata_definitions,