tools/qvm-ls: add --raw-list option for compatibility with R3.2

There was an option to list just VM names, useful for scripting.
Preserve that for compatibility.

doc/manpages/qvm-ls.rst

@@ -23,6 +23,15 @@ Options
 
    List all available formats with their definitions and exit.
 
+.. option:: --all
+
+   List all qubes, this is default.
+
+.. option:: --exclude
+
+   Exclude the qube from --all. You need to use --all option explicitly to use
+   --exclude.
+
 .. option:: --format=FORMAT, -o FORMAT
 
    Sets format to a list of columns defined by preset. All formats along with
@@ -39,6 +48,11 @@ Options
    Output data in easy to parse format. Table header is skipped and columns are
    separated by `|` character.
 
+.. option:: --raw-list
+
+   Give plain list of VM names, without header or separator. Useful in scripts.
+   Same as --raw-data --fields=name
+
 .. option:: --verbose, -v
 
    Increase verbosity.

qubesadmin/tests/tools/qvm_ls.py

@@ -112,6 +112,14 @@ class TC_50_List(qubesadmin.tests.QubesTestCase):
             'NAME     STATE    CLASS   LABEL  TEMPLATE  NETVM\n'
             'test-vm  Running  TestVM  green  template  sys-net\n')
 
+    def test_102_raw_list(self):
+        app = TestApp()
+        with qubesadmin.tests.tools.StdoutBuffer() as stdout:
+            qubesadmin.tools.qvm_ls.main(['--raw-list'], app=app)
+        self.assertEqual(stdout.getvalue(),
+            'dom0\n'
+            'test-vm\n')
+
 
 class TC_90_List_with_qubesd_calls(qubesadmin.tests.QubesTestCase):
     def test_100_list_with_status(self):

qubesadmin/tools/qvm_ls.py

@@ -539,6 +539,10 @@ def get_parser():
         action='store_false', dest='spinner',
         help='disable spinner')
 
+    # shortcuts, compatibility with Qubes 3.2
+    parser.add_argument('--raw-list', action='store_true',
+        help='Same as --raw-data --fields=name')
+
     parser.set_defaults(spinner=True)
 
 #   parser.add_argument('--conf', '-c',
@@ -563,6 +567,10 @@ def main(args=None, app=None):
         parser.print_error(str(e))
         return 1
 
+    if args.raw_list:
+        args.raw_data = True
+        args.fields = 'name'
+
     if args.fields:
         columns = [col.strip() for col in args.fields.split(',')]
     else: