Use qubes.VMExec in run_with_args()

qubesadmin/tests/tools/qvm_start.py

@@ -189,6 +189,10 @@ class TC_00_qvm_start(qubesadmin.tests.QubesTestCase):
             ('some-vm', 'admin.vm.device.block.Set.persistent',
             'other-vm+loop7',
             b'False')] = b'0\x00'
+        self.app.expected_calls[
+            ('other-vm', 'admin.vm.feature.CheckWithTemplate', 'vmexec',
+             None)] = b'2\x00QubesFeatureNotFoundError\x00\x00Feature \'vmexec\' not set\x00'
+
         with unittest.mock.patch.object(self.app.domains['other-vm'], 'run') \
                 as mock_run:
             mock_run.return_value = (b'/dev/loop7', b'')

qubesadmin/tests/vm/actions.py

@@ -1,4 +1,4 @@
-# -*- encoding: utf8 -*-
+# -*- encoding: utf-8 -*-
 #
 # The Qubes OS Project, http://www.qubes-os.org
 #
@@ -94,7 +94,10 @@ class TC_00_Actions(qubesadmin.tests.vm.VMTestCase):
             ('test-vm', 'qubes.VMShell', b'some command& exit\n'),
         ])
 
-    def test_015_run_with_args(self):
+    def test_015_run_with_args_shell(self):
+        self.app.expected_calls[
+            ('test-vm', 'admin.vm.feature.CheckWithTemplate', 'vmexec', None)] = \
+            b'2\x00QubesFeatureNotFoundError\x00\x00Feature \'vmexec\' not set\x00'
         self.app.expected_calls[
             ('test-vm', 'admin.vm.feature.CheckWithTemplate', 'os', None)] = \
             b'2\x00QubesFeatureNotFoundError\x00\x00Feature \'os\' not set\x00'
@@ -106,3 +109,18 @@ class TC_00_Actions(qubesadmin.tests.vm.VMTestCase):
                 b'some \'argument with spaces\' \'and $pecial; chars\'; '
                 b'exit\n'),
         ])
+
+    def test_016_run_with_args_exec(self):
+        self.app.expected_calls[
+            ('test-vm', 'admin.vm.feature.CheckWithTemplate', 'vmexec', None)] = \
+            b'0\x001'
+        self.vm.run_with_args('some', 'argument with spaces',
+            'and $pecial; chars')
+        self.assertEqual(self.app.service_calls, [
+            ('test-vm',
+             'qubes.VMExec+some+argument-20with-20spaces+and-20-24pecial-3B-20chars',
+             {}),
+            ('test-vm',
+             'qubes.VMExec+some+argument-20with-20spaces+and-20-24pecial-3B-20chars',
+             b''),
+        ])

qubesadmin/vm/__init__.py

@@ -316,12 +316,22 @@ class QubesVM(qubesadmin.base.PropertyHolder):
             raise e
 
     def run_with_args(self, *args, **kwargs):
-        '''Run a single command inside the domain using qubes.VMShell qrexec.
+        '''Run a single command inside the domain. Use the qubes.VMExec qrexec,
+        if available.
 
         This method execute a single command, without interpreting any shell
         special characters.
 
         '''  # pylint: disable=redefined-builtin
+        if self.features.check_with_template('vmexec', False):
+            try:
+                return self.run_service_for_stdio(
+                    'qubes.VMExec+' + qubesadmin.utils.encode_for_vmexec(args),
+                **kwargs)
+            except subprocess.CalledProcessError as e:
+                e.cmd = str(args)
+                raise e
+
         return self.run(' '.join(shlex.quote(arg) for arg in args), **kwargs)
 
     @property