From b6d06d856d4970a85be53031eda818aaf55a2d05 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Sun, 16 Apr 2017 03:20:48 +0200
Subject: [PATCH] tools: qvm-start

The tool and tests for it.
---
 qubesmgmt/tests/tools/qvm_start.py | 67 ++++++++++++++++++++++++++++++
 qubesmgmt/tools/qvm_start.py       | 58 ++++++++++++++++++++++++++
 2 files changed, 125 insertions(+)
 create mode 100644 qubesmgmt/tests/tools/qvm_start.py
 create mode 100644 qubesmgmt/tools/qvm_start.py

diff --git a/qubesmgmt/tests/tools/qvm_start.py b/qubesmgmt/tests/tools/qvm_start.py
new file mode 100644
index 0000000..ef15cb9
--- /dev/null
+++ b/qubesmgmt/tests/tools/qvm_start.py
@@ -0,0 +1,67 @@
+# -*- encoding: utf8 -*-
+#
+# The Qubes OS Project, http://www.qubes-os.org
+#
+# Copyright (C) 2017 Marek Marczykowski-Górecki
+#                               <marmarek@invisiblethingslab.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with this program; if not, see <http://www.gnu.org/licenses/>.
+
+import qubesmgmt.tests
+import qubesmgmt.tests.tools
+import qubesmgmt.tools.qvm_start
+
+
+class TC_00_qvm_start(qubesmgmt.tests.QubesTestCase):
+    def test_000_with_vm(self):
+        self.app.expected_calls[
+            ('dom0', 'mgmt.vm.List', None, None)] = \
+            b'0\x00some-vm class=AppVM state=Running\n'
+        self.app.expected_calls[
+            ('some-vm', 'mgmt.vm.Start', None, None)] = b'0\x00'
+        qubesmgmt.tools.qvm_start.main(['some-vm'], app=self.app)
+        self.assertAllCalled()
+
+    def test_001_missing_vm(self):
+        with self.assertRaises(SystemExit):
+            with qubesmgmt.tests.tools.StderrBuffer() as stderr:
+                qubesmgmt.tools.qvm_start.main([], app=self.app)
+        self.assertIn('one of the arguments --all VMNAME is required',
+            stderr.getvalue())
+        self.assertAllCalled()
+
+    def test_002_invalid_vm(self):
+        self.app.expected_calls[
+            ('dom0', 'mgmt.vm.List', None, None)] = \
+            b'0\x00some-vm class=AppVM state=Running\n'
+        with self.assertRaises(SystemExit):
+            with qubesmgmt.tests.tools.StderrBuffer() as stderr:
+                qubesmgmt.tools.qvm_start.main(['no-such-vm'], app=self.app)
+        self.assertIn('no such domain', stderr.getvalue())
+        self.assertAllCalled()
+
+    def test_003_already_running(self):
+        # TODO: some option to ignore this error?
+        self.app.expected_calls[
+            ('some-vm', 'mgmt.vm.Start', None, None)] = \
+            b'2\x00QubesVMNotHaltedError\x00\x00Domain is running: ' \
+            b'some-vm\x00'
+        self.app.expected_calls[
+            ('dom0', 'mgmt.vm.List', None, None)] = \
+            b'0\x00some-vm class=AppVM state=Running\n'
+        self.assertEqual(
+            qubesmgmt.tools.qvm_start.main(['some-vm'], app=self.app),
+            1)
+        self.assertAllCalled()
+
diff --git a/qubesmgmt/tools/qvm_start.py b/qubesmgmt/tools/qvm_start.py
new file mode 100644
index 0000000..9a5ae85
--- /dev/null
+++ b/qubesmgmt/tools/qvm_start.py
@@ -0,0 +1,58 @@
+# -*- encoding: utf8 -*-
+#
+# The Qubes OS Project, http://www.qubes-os.org
+#
+# Copyright (C) 2017 Marek Marczykowski-Górecki
+#                               <marmarek@invisiblethingslab.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with this program; if not, see <http://www.gnu.org/licenses/>.
+
+'''qvm-start - start a domain'''
+
+
+import sys
+import qubesmgmt.exc
+import qubesmgmt.tools
+
+parser = qubesmgmt.tools.QubesArgumentParser(
+    description='start a domain', vmname_nargs='+')
+
+parser.add_argument('--skip-if-running',
+    action='store_true', default=False,
+    help='Do not fail if the qube is already runnning')
+
+def main(args=None, app=None):
+    '''Main routine of :program:`qvm-start`.
+
+    :param list args: Optional arguments to override those delivered from \
+        command line.
+    '''
+
+    args = parser.parse_args(args, app=app)
+
+    exit_code = 0
+    for domain in args.domains:
+        if args.skip_if_running and domain.is_running():
+            continue
+        try:
+            domain.start()
+        except (IOError, OSError, qubesmgmt.exc.QubesException) as e:
+            exit_code = 1
+            parser.print_error(str(e))
+
+    return exit_code
+
+
+if __name__ == '__main__':
+    sys.exit(main())