More config cli (#466)

* Extra config CLI tech spec

* Describe packaging

* Added CLI commands

* Add tests

trustgraph-cli/trustgraph/cli/list_config_items.py

@@ -0,0 +1,65 @@
+"""
+Lists configuration items for a specified type
+"""
+
+import argparse
+import os
+import json
+from trustgraph.api import Api
+
+default_url = os.getenv("TRUSTGRAPH_URL", 'http://localhost:8088/')
+
+def list_config_items(url, config_type, format_type):
+
+    api = Api(url).config()
+
+    keys = api.list(config_type)
+
+    if format_type == "json":
+        print(json.dumps(keys))
+    else:
+        for key in keys:
+            print(key)
+
+def main():
+
+    parser = argparse.ArgumentParser(
+        prog='tg-list-config-items',
+        description=__doc__,
+    )
+
+    parser.add_argument(
+        '--type',
+        required=True,
+        help='Configuration type to list',
+    )
+
+    parser.add_argument(
+        '--format',
+        choices=['text', 'json'],
+        default='text',
+        help='Output format (default: text)',
+    )
+
+    parser.add_argument(
+        '-u', '--api-url',
+        default=default_url,
+        help=f'API URL (default: {default_url})',
+    )
+
+    args = parser.parse_args()
+
+    try:
+
+        list_config_items(
+            url=args.api_url,
+            config_type=args.type,
+            format_type=args.format,
+        )
+
+    except Exception as e:
+
+        print("Exception:", e, flush=True)
+
+if __name__ == "__main__":
+    main()