Add minimalistic batch subcommand

errata-tool batch get <id or name of batch>
errata-tool batch list
based on ErrataConnector::get_filter method

prints the returned json blob

errata_tool/cli/batch.py

@@ -0,0 +1,43 @@
+from errata_tool.connector import ErrataConnector
+
+
+def add_parser(subparsers):
+    """Add our batcj parser to this top-level subparsers object. """
+    group = subparsers.add_parser('batch', help='Get batch Details')
+
+    # advisory-level subcommands:
+    sub = group.add_subparsers(dest='batch_subcommand')
+    sub.required = True
+
+    # "get"
+    get_parser = sub.add_parser('get')
+    get_parser.add_argument('batch_name_or_id', help='batch name or id, "12345" or "<batch name>"')
+    get_parser.set_defaults(func=get)
+
+    # "list"
+    list_parser = sub.add_parser('list')
+    list_parser.set_defaults(func=list_func)
+
+def get_errata_by_batch(connector, batch_name_or_id):
+    """search for and return list of errata by name or id of batch"""
+    args = {}
+
+    try:
+        args['id'] = int(batch_name_or_id)
+    except ValueError:
+        args['name'] = batch_name_or_id
+
+    data = connector.get_filter('/api/v1/batches', 'filter', **args)
+
+    return data
+
+def get(args):
+    et = ErrataConnector()
+    e = get_errata_by_batch(et, args.batch_name_or_id)
+    print(e)
+
+
+def list_func(args):
+    et = ErrataConnector()
+    e = et._get('/api/v1/batches')
+    print(e)