Feature/library cli (#363)

* Major Python client API rework, break down API & colossal class

* Complete rest of library API

* Library CLI support

trustgraph-cli/scripts/tg-show-library-processing

@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+
+"""
+"""
+
+import argparse
+import os
+import tabulate
+from trustgraph.api import Api, ConfigKey
+import json
+
+default_url = os.getenv("TRUSTGRAPH_URL", 'http://localhost:8088/')
+default_user = "trustgraph"
+
+def show_procs(url, user):
+
+    api = Api(url).library()
+
+    procs = api.get_processings(user = user)
+
+    if len(procs) == 0:
+        print("No processing objects.")
+        return
+
+    for proc in procs:
+
+        table = []
+        table.append(("id", proc.id))
+        table.append(("document-id", proc.document_id))
+        table.append(("time", proc.time))
+        table.append(("flow", proc.flow))
+        table.append(("collection", proc.collection))
+        table.append(("tags", ", ".join(proc.tags)))
+
+        print(tabulate.tabulate(
+            table,
+            tablefmt="pretty",
+            stralign="left",
+        ))
+        print()
+
+def main():
+
+    parser = argparse.ArgumentParser(
+        prog='tg-show-library-processing',
+        description=__doc__,
+    )
+
+    parser.add_argument(
+        '-u', '--api-url',
+        default=default_url,
+        help=f'API URL (default: {default_url})',
+    )
+
+    parser.add_argument(
+        '-U', '--user',
+        default=default_user,
+        help=f'User ID (default: {default_user})'
+    )
+
+    args = parser.parse_args()
+
+    try:
+
+        show_procs(
+            url = args.api_url, user = args.user
+        )
+
+    except Exception as e:
+
+        print("Exception:", e, flush=True)
+
+main()
+